U.S. patent application number 12/341289 was filed with the patent office on 2011-12-01 for method of treating scoliosis using a biological implant.
This patent application is currently assigned to AXIAL BIOTECH, INC.. Invention is credited to James W. Ogilvie.
Application Number | 20110295369 12/341289 |
Document ID | / |
Family ID | 40564274 |
Filed Date | 2011-12-01 |
United States Patent
Application |
20110295369 |
Kind Code |
A9 |
Ogilvie; James W. |
December 1, 2011 |
Method of Treating Scoliosis Using a Biological Implant
Abstract
The present invention is a bone growth stimulating and promoting
cytokine type biological implant preferably comprising PTH coated
with a controlled release biodegradable coating that is implanted
preferably in the concave side of a scoliotically curved spine in
combination with a bone growth inhibiting type biological implant
preferably comprising methotrexate or like anti-metabolite coated
with a controlled release biodegradable coating that is implanted
preferably in the convex side of a scoliotically curved spine. The
insertion of the biological implant is highly non-invasion,
especially as compared to more conventional spine surgical methods,
and the biological implant does not decrease spinal mobility or
spinal range of motion.
Inventors: |
Ogilvie; James W.;
(Brighton, UT) |
Assignee: |
AXIAL BIOTECH, INC.
Salt Lake city
UT
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Prior
Publication: |
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Document Identifier |
Publication Date |
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US 20090105822 A1 |
April 23, 2009 |
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Family ID: |
40564274 |
Appl. No.: |
12/341289 |
Filed: |
December 22, 2008 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
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11259941 |
Oct 26, 2005 |
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12341289 |
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11968046 |
Dec 31, 2007 |
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11259941 |
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PCT/US07/72785 |
Jul 3, 2007 |
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11968046 |
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60622999 |
Oct 28, 2004 |
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61073119 |
Jun 17, 2008 |
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61082503 |
Jul 21, 2008 |
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60806498 |
Jul 3, 2006 |
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60825260 |
Sep 11, 2006 |
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Current U.S.
Class: |
623/17.11 ;
128/898; 604/264; 606/105 |
Current CPC
Class: |
A61L 2300/416 20130101;
A61L 27/58 20130101; A61L 2300/45 20130101; A61L 2300/414 20130101;
A61B 2017/564 20130101; A61B 17/70 20130101; A61B 17/56 20130101;
A61B 2017/00004 20130101; A61L 27/54 20130101; A61L 2300/43
20130101; A61B 2017/00893 20130101; A61L 2430/38 20130101; A61L
2300/604 20130101 |
Class at
Publication: |
623/17.11 ;
128/898; 606/105; 604/264 |
International
Class: |
A61F 2/44 20060101
A61F002/44; A61M 25/00 20060101 A61M025/00; A61B 17/60 20060101
A61B017/60; A61B 19/00 20060101 A61B019/00 |
Claims
1. A method of treating a scoliotically curved spine in a patient
being determined to be at risk of spine curve progression
comprising inserting at least one dissolvable time release bone
growth promoting biological implant substantially between a first
vertebra and a second vertebra of said spine on a concave side of
said curve formed in said spine, substantially proximate at least
one growth plate of said patient.
2. The method of claim 1, wherein said biological implant defines a
dissolvable bone growth stimulant coated with a dissolvable
coating.
3. The method of claim 1, wherein said biological implant comprises
at least one of a Parathyroid hormone, a Fibroblast growth factor,
an androgen, an Insulin-like Growth Factor, an Estrogen, a
Transforming Growth Factor, and an inorganic phosphate.
4. The method of claim 1, wherein said biological implant is
inserted into said patient by placing said biological implant into
a biological implantation apparatus and causing said biological
implant to move from said biological implantation apparatus into
said patient.
5. The method of claim 4, wherein said biological implantation
apparatus defines a trocar.
6. The method of claim 1, wherein said method includes at least one
of the following steps comprising determining said patient is at
risk of scoliosis development or scoliosis curve progression,
joining at least one mechanical implant to a first vertebra and to
a second vertebra of the spine of said patient, and applying a
brace to said patient.
7. The method of claim 6, wherein determining said patient is at
risk of scoliosis development or scoliosis curve progression
further defines the result of a screening test wherein a scoliosis
related condition risk value is derived by performing a calculation
based on at least one scoliosis associated biological marker being
detected in a biological sample of said patient, and wherein
joining at least one mechanical implant to a first vertebra and to
a second vertebra of said spine further defines joining a first
fastener to a first scoliotic vertebra and a second fastener to a
second scoliotic vertebra on a concave side of a curve formed in a
scoliotic spine, joining at least one mechanical implant with said
first fastener and said second fastener, and expanding said at
least one mechanical implant between said first scoliotic vertebra
and said second scoliotic vertebra such that a distraction force is
provided between said first scoliotic vertebra and said second
scoliotic vertebra, and wherein applying a brace to said patient
further defines providing an external brace having no more than
three principal load applying contact points; fitting said brace to
said patient; and treating said spine of said patient by periodic
brace adjustments.
8. The method of claim 6, wherein determining said patient is at
risk of scoliosis curve progression further defines a determination
of genetic predisposition wherein the DNA of said patient includes
a plurality of genetic markers having an association with scoliosis
contained therein and wherein said risk is determined by performing
logistic regression on said plurality of scoliosis associated
genetic markers.
9. A method of treating a spine in a vertebrate patient comprising
inserting at least one bone growth modulating biological implant
proximate said spine of said patient.
10. The method of claim 9, wherein said at least one biological
implant defines at least one of a bone growth promoting implant and
a growth inhibiting implant.
11. The method of claim 9, wherein said at least one biological
implant includes at least one bone growth promoting implant and at
least one bone growth inhibiting implant.
12. The method of claim 9, wherein said spine includes a curve
formed therein.
13. The method of claim 9, wherein said spine defines a scoliotic
spine.
14. The method of claim 9, wherein said at least one biological
implant defines a bone growth promoting implant, and wherein said
spine includes a curve formed therein, and wherein said at least
one bone growth promoting implant is inserted proximate a concave
side of said curve of said spine.
15. The method of claim 14, wherein said spine defines a scoliotic
spine, and wherein said biological implant is inserted between a
first scoliotic vertebra and a second scoliotic vertebra on said
concave side of said curve of said scoliotic spine.
16. The method of claim 14, wherein said spine defines a scoliotic
spine.
17. The method of claim 9, wherein said at least one biological
implant includes at least one bone growth promoting implant and at
least one bone growth inhibiting implant, and wherein said spine
includes a curve formed therein, and wherein said at least one bone
growth promoting implant is inserted proximate a concave side of
said curve of said spine, and wherein said at least one bone growth
inhibiting implant is inserted proximate a convex side of said
curve of said spine.
18. The method of claim 17, wherein said spine defines a scoliotic
spine, and wherein said growth promoting biological implant is
inserted between a first scoliotic vertebra and a second scoliotic
vertebra on said concave side of said curve of said scoliotic
spine, and wherein said growth inhibiting biological implant is
inserted between a first scoliotic vertebra and a second scoliotic
vertebra on said convex side of said curve of said scoliotic
spine.
19. The method of claim 17, wherein said spine defines a scoliotic
spine.
20. The method of claim 9, wherein said biological implant defines
at least one of a dissolvable bone growth stimulant coated with a
dissolvable coating and a dissolvable bone growth inhibitor coated
with a dissolvable coating.
21. The method of claim 9, wherein said biological implant
comprises at least one of a Parathyroid hormone, a Fibroblast
growth factor, an androgen, an Insulin-like Growth Factor, an
Estrogen, a Transforming Growth Factor, an inorganic phosphate, and
an anti-metabolite.
22. The method of claim 9, wherein said biological implant is
inserted into said patient by placing said biological implant into
a biological implantation apparatus and causing said biological
implant to move from said biological implantation apparatus into
said patient.
23. The method of claim 22, wherein said biological implantation
apparatus defines a trocar.
24. The method of claim 9, wherein said method includes at least
one of the following steps comprising determining said patient is
at risk of scoliosis development or scoliosis curve progression,
joining at least one mechanical implant to a first vertebra and to
a second vertebra of said spine, and applying a brace to said
patient.
25. The method of claim 24, wherein determining said patient is at
risk of scoliosis development or scoliosis curve progression
further defines the result of a screening test wherein a scoliosis
related condition risk value is derived by performing a calculation
based on at least one scoliosis associated biological marker being
detected in a biological sample of said patient, and wherein
joining at least one mechanical implant to a first vertebra and to
a second vertebra of said spine further defines joining a first
fastener to a first scoliotic vertebra and a second fastener to a
second scoliotic vertebra on a concave side of a curve formed in a
scoliotic spine, joining at least one mechanical implant with said
first fastener and said second fastener, and expanding said at
least one mechanical implant between said first scoliotic vertebra
and said second scoliotic vertebra such that a distraction force is
provided between said first scoliotic vertebra and said second
scoliotic vertebra, and wherein applying a brace to said patient
further defines providing an external brace having no more than
three principal load applying contact points; fitting said brace to
said patient; and treating said spine of said patient by periodic
brace adjustments.
26. The method of claim 24, wherein determining said patient is at
risk of scoliosis curve progression further defines a determination
of genetic predisposition wherein the DNA of said patient includes
a plurality of genetic markers having an association with scoliosis
contained therein and wherein said risk is determined by performing
logistic regression on said plurality of scoliosis associated
genetic markers.
27. A method of treating a scoliotic spine in a vertebrate patient
comprising inserting at least one bone growth modulating biological
implant proximate at least one growth plate of said patient and
substantially between a first scoliotic vertebra and a second
scoliotic vertebra of a spine of said patient.
28. The method of claim 27, wherein said at least one biological
implant defines at least one of a bone growth promoting implant and
a growth inhibiting implant.
29. The method of claim 27, wherein said at least one biological
implant includes at least one bone growth promoting implant and at
least one bone growth inhibiting implant.
30. The method of claim 27, wherein said at least one biological
implant defines a bone growth promoting implant, and wherein said
spine includes a curve formed therein, and wherein said at least
one bone growth promoting implant is inserted proximate a concave
side of said curve of said spine.
31. The method of claim 27, wherein said biological implant is
inserted on a concave side of a curve formed in said scoliotic
spine.
32. The method of claim 27, wherein said at least one biological
implant includes at least one bone growth promoting implant and at
least one bone growth inhibiting implant, and wherein said spine
includes a curve formed therein, and wherein said at least one bone
growth promoting implant is inserted proximate a concave side of
said curve of said spine, and wherein said at least one bone growth
inhibiting implant is inserted proximate a convex side of said
curve of said spine.
33. The method of claim 27, wherein said biological implant defines
at least one of a dissolvable bone growth stimulant coated with a
dissolvable coating and a dissolvable bone growth inhibitor coated
with a dissolvable coating.
34. The method of claim 27, wherein said biological implant
comprises at least one of a Parathyroid hormone, a Fibroblast
growth factor, an androgen, an Insulin-like Growth Factor, an
Estrogen, a Transforming Growth Factor, an inorganic phosphate, and
an anti-metabolite.
35. The method of claim 27, wherein said biological implant is
inserted into said patient by placing said biological implant into
a biological implantation apparatus and causing said biological
implant to move from said biological implantation apparatus into
said patient.
36. The method of claim 35, wherein said biological implantation
apparatus defines a trocar.
37. The method of claim 27, wherein said method includes at least
one of the following steps comprising determining said patient is
at risk of scoliosis development or scoliosis curve progression,
joining at least one mechanical implant to a first vertebra and to
a second vertebra of said spine, and applying a brace to said
patient.
38. The method of claim 37, wherein determining said patient is at
risk of scoliosis development or scoliosis curve progression
further defines the result of a screening test wherein a scoliosis
related condition risk value is derived by performing a calculation
based on at least one scoliosis associated biological marker being
detected in a biological sample of said patient, and wherein
joining at least one mechanical implant to a first vertebra and to
a second vertebra of said spine further defines joining a first
fastener to a first scoliotic vertebra and a second fastener to a
second scoliotic vertebra on a concave side of a curve formed in a
scoliotic spine, joining at least one mechanical implant with said
first fastener and said second fastener, and expanding said at
least one mechanical implant between said first scoliotic vertebra
and said second scoliotic vertebra such that a distraction force is
provided between said first scoliotic vertebra and said second
scoliotic vertebra, and wherein applying a brace to said patient
further defines providing an external brace having no more than
three principal load applying contact points; fitting said brace to
said patient; and treating said spine of said patient by periodic
brace adjustments.
39. The method of claim 37, wherein determining said patient is at
risk of scoliosis curve progression further defines a determination
of genetic predisposition wherein the DNA of said patient includes
a plurality of genetic markers having an association with scoliosis
contained therein and wherein said risk is determined by performing
logistic regression on said plurality of scoliosis associated
genetic markers.
40. A method of implanting a biological implant comprising
selecting a vertebrate patient having at least one scoliosis
associated biological marker in the DNA of said patient, and
implanting said biological implant into said patient.
41. The method of claim 40, wherein said biological implant defines
a bone growth modulating biological implant.
42. The method of claim 40, wherein said biological implant is
inserted proximate the spine of said patient.
43. The method of claim 40, wherein said at least one biological
implant defines at least one of a bone growth promoting implant and
a growth inhibiting implant.
44. The method of claim 40, wherein said at least one biological
implant includes at least one bone growth promoting implant and at
least one bone growth inhibiting implant.
45. The method of claim 40, wherein the spine of said patient
includes a curve formed therein.
46. The method of claim 40, wherein the spine of said patient
defines a scoliotic spine.
47. The method of claim 40, wherein said at least one biological
implant defines a bone growth promoting implant, and wherein the
spine of said patient includes a curve formed therein, and wherein
said at least one bone growth promoting implant is inserted
proximate a concave side of said curve of said spine.
48. The method of claim 47, wherein said spine defines a scoliotic
spine, and wherein said biological implant is inserted between a
first scoliotic vertebra and a second scoliotic vertebra on said
concave side of said curve of said scoliotic spine.
49. The method of claim 47, wherein said spine defines a scoliotic
spine.
50. The method of claim 40, wherein said at least one biological
implant includes at least one bone growth promoting implant and at
least one bone growth inhibiting implant, and wherein the spine of
said patient includes a curve formed therein, and wherein said at
least one bone growth promoting implant is inserted proximate a
concave side of said curve of said spine, and wherein said at least
one bone growth inhibiting implant is inserted proximate a convex
side of said curve of said spine.
51. The method of claim 50, wherein the spine of said patient
defines a scoliotic spine, and wherein said growth promoting
biological implant is inserted between a first scoliotic vertebra
and a second scoliotic vertebra on said concave side of said curve
of said scoliotic spine, and wherein said growth inhibiting
biological implant is inserted between a first scoliotic vertebra
and a second scoliotic vertebra on said convex side of said curve
of said scoliotic spine.
52. The method of claim 50, wherein said spine of said patient
defines a scoliotic spine.
53. The method of claim 40, wherein said biological implant defines
at least one of a dissolvable bone growth stimulant coated with a
dissolvable coating and a dissolvable bone growth inhibitor coated
with a dissolvable coating.
54. The method of claim 40, wherein said biological implant
comprises at least one of a Parathyroid hormone, a Fibroblast
growth factor, an androgen, an Insulin-like Growth Factor, an
Estrogen, a Transforming Growth Factor, an inorganic phosphate, and
an anti-metabolite.
55. The method of claim 40, wherein said biological implant is
inserted into said patient by placing said biological implant into
a biological implantation apparatus and causing said biological
implant to move from said biological implantation apparatus into
said patient.
56. The method of claim 55, wherein said biological implantation
apparatus defines a trocar.
57. The method of claim 40, wherein said method includes at least
one of the following steps comprising determining said patient is
at risk of scoliosis development or scoliosis curve progression,
joining at least one mechanical implant to a first vertebra and to
a second vertebra of the spine of said patient, and applying a
brace to said patient.
58. The method of claim 57, wherein determining said patient is at
risk of scoliosis development or scoliosis curve progression
further defines the result of a screening test wherein a scoliosis
related condition risk value is derived by performing a calculation
based on at least one scoliosis associated biological marker being
detected in a biological sample of said patient, and wherein
joining at least one mechanical implant to a first vertebra and to
a second vertebra of said spine further defines joining a first
fastener to a first scoliotic vertebra and a second fastener to a
second scoliotic vertebra on a concave side of a curve formed in a
scoliotic spine, joining at least one mechanical implant with said
first fastener and said second fastener, and expanding said at
least one mechanical implant between said first scoliotic vertebra
and said second scoliotic vertebra such that a distraction force is
provided between said first scoliotic vertebra and said second
scoliotic vertebra, and wherein applying a brace to said patient
further defines providing an external brace having no more than
three principal load applying contact points; fitting said brace to
said patient; and treating said spine of said patient by periodic
brace adjustments.
59. The method of claim 57, wherein determining said patient is at
risk of scoliosis curve progression further defines a determination
of genetic predisposition wherein the DNA of said patient includes
a plurality of genetic markers having an association with scoliosis
contained therein and wherein said risk is determined by performing
logistic regression on said plurality of scoliosis associated
genetic markers.
Description
CROSS REFERENCE TO RELATED APPLICATIONS
[0001] This nonprovisional utility application is a
continuation-in-part of and claims the benefit under 35 U.S.C.
.sctn. 120 to co-pending U.S. application Ser. No. 11/259,941 filed
Oct. 26, 2005, and is a continuation-in-part of and claims the
benefit under 35 U.S.C. .sctn. 119(e) to U.S. Provisional
Application No. 61/073,119, filed Jun. 17, 2008, all of which are
incorporated, in their entirety, by this reference.
FIELD OF THE INVENTION
[0002] The present invention relates to the management of bone
growth, and more especially management of bone growth to correct
for skeletal deformities such as scoliosis through the selective
use of biological implants.
BACKGROUND OF THE INVENTION
[0003] Scoliosis, a medical condition in humans typically
characterized by the side-to-side or lateral curvature of the
spine, is a common problem affecting more than 2 percent of the US
population. Further other related skeletal problems are also common
in the human population. Many inventions have been directed to
therapeutics for the prevention and correction of scoliosis and
like conditions. Such therapeutics include for instance corrective
bracing, corrective surgery and certain exercise routines. Certain
instances of such therapeutics have shown greater effectiveness
than others. In the case of corrective surgery, such therapeutic
may prove highly effective in correcting scoliosis but typically is
relatively invasive and potentially traumatic to the patient, and
may result in the loss of mobility and range of motion of the
spine. Accordingly, there exists a need to for a preventative and
corrective scoliosis therapeutic that is highly minimally invasive
and does not reduce the patient's mobility and range of motion.
SUMMARY OF THE INVENTION
[0004] The present invention therefore is a method and apparatus
for bone growth management using biological implants. In an
embodiment of the invention, a first implant defines a bone growth
stimulating and promoting cytokine type biological implant such as
Parathyroid hormone (PTH) having a controlled release or controlled
time dissolvable biodegradable coating, and a second implant
defines a bone growth inhibiting type biological implant such as a
composition that includes as at least a portion thereof
methotrexate or like anti-metabolite and having a controlled
release or controlled time dissolvable biodegradable coating. The
first implant is preferably inserted between vertebra, near a
growth plate, on the concave side of a scoliotically curved spine
by means of inserting the tip of a trocar into the desired area of
the spine, and passing the implant through the trocar and into the
desired area of the spine of a patient. The second implant is
preferably inserted between vertebra, near a growth plate, on the
convex side of a scoliotically curved spine by means of inserting
the tip of a trocar into the desired area of the spine, and passing
the implant through the trocar and into the desired area of the
spine of a patient. After implant insertion and over the course of
time, the implants dissolve releasing the bone growth simulating
cytokine and the bone growth inhibiting composition to the
vertebra. In response, the vertebra grows a greater amount on a
concave side of the spine than on a convex side of the spine. This
asymmetric growth of the spine over time causes the spine to
transition from a substantially scoliotically curved configuration
to a substantially non-scoliotically curved configuration.
DESCRIPTION OF DRAWINGS
[0005] In order that the advantages of the invention will be
readily understood, a more particular description of the invention
briefly described above will be rendered by reference to specific
embodiments that are illustrated in the appended drawings.
Understanding that these drawings depict only typical embodiments
of the invention and are not therefore to be considered to be
limiting of its scope, the invention will be described and
explained with additional specificity and detail through the use of
the accompanying drawings, in which:
[0006] FIG. 1 is a substantially orthographic anterior/posterior
schematic view of a scoliotic spine, and;
[0007] FIG. 2 is a close-up schematic view of a portion of the
spine shown in FIG. 1.
DETAILED DESCRIPTION OF THE INVENTION
[0008] Reference throughout this specification to "one embodiment,"
"an embodiment," or similar language means that a particular
feature, structure, or characteristic described in connection with
the embodiment is included in at least one embodiment of the
present invention. Thus, appearances of the phrases "in one
embodiment," "in an embodiment," and similar language throughout
this specification may, but do not necessarily, all refer to the
same embodiment.
[0009] Furthermore, the described features, structures, or
characteristics of the invention may be combined in any suitable
manner in one or more embodiments. In the following description,
numerous specific details are included to provide a thorough
understanding of embodiments of the invention. One skilled in the
relevant art will recognize, however, that the invention can be
practiced without one or more of the specific details, or with
other methods, components, materials, and so forth. In other
instances, well-known structures, materials, or operations are not
shown or described in detail to avoid obscuring aspects of the
invention.
[0010] It is known that growth of the physeal plate results in
longitudinal growth of long bones. In the spine, increase in height
of vertebral bodies is accomplished through growth of the
cartilaginous endplate. Growth of the physeal plate is influenced
by both mechanical factors and signaling molecules. Stimulation of
physeal chondrocytes growth is controlled through a complex
interaction of local and systemic pathways. Many cytokines (a
category of signaling proteins) have an anabolic effect of growth
plate cartilage.
[0011] Specifically it is known that Parathyroid hormone (PTH)
stimulates physeal chondrocytes. The overall effect of PTH on the
growth plate chondrocyte appears to be a stimulation of
proteoglycan synthesis that is mediated by the degradation products
of membrane phosphoinositides.
[0012] It is known that Fibroblast growth factors can stimulate
growth of the physeal plate. In chick growth plate chondrocytes
tritiated thymidine incorporation was increased 11-fold by
fibroblast growth factor (10 ng/ml) and 3.5 by TGF-beta. Studies
have identified FGF18 as a selective ligand for FGFR3 in limb bud
mesenchymal cells, which suppressed proliferation and promoted
their differentiation and production of cartilage matrix. Research
work has identified FGF18 and FGFR3 as potential molecular targets
for intervention in tissue engineering aimed at cartilage repair
and regeneration of damaged cartilage.
[0013] Furthermore, it is know that androgens have an anabolic
effect, and it is known that Insulin-like Growth Factors (IGF),
Estrogens, and Transforming Growth Factors (TGF), all stimulate
growth. Calcium metabolism has an influence on growth plate
activity. Inorganic phosphate may act as a signaling molecule in
the regulation of bone formation. All of the above listed cytokines
may be incorporated in the form of a biological implant.
[0014] Furthermore, it is known that methotrexate or like
anti-metabolites function to inhibit bone growth. Methotrexate or
like anti-metabolite may be incorporated in the form of a
biological implant.
[0015] The biological implant is preferably coated with a timed
release or time dissolvable biodegradable coating. Such coatings
are commercially available for instance from the SurModics
Corporation and sold under various trademarked names such as
SynBiosys, Eureka and PolyActive. The implant may be shaped for
instance in the form of a cylinder with rounded or hemispherically
shaped ends. Alternatively, the implant may be preformed to adapt
to a particular implantation target site, for instance a surface of
the implant may be shaped to form to the shape of a portion of a
vertebra. Further alternatively, the implant may be somewhat
compliant so as to be at least partially pressed into a shaped that
conforms to a target site such as to the shape of a portion of a
vertebra.
[0016] In order to facilitate the understanding of the present
invention in reviewing the drawings accompanying the specification,
a feature list is provided below. It is noted that like features
are like numbered throughout all of the figures.
TABLE-US-00001 FEATURE TABLE # Feature 10 Scoliotic vertebrae or
spine 12 Scoliotic vertebrae concave side 14 Scoliotic vertebrae
convex side 20 Scoliotic vertebra 22 Scoliotic vertebra concave
side 24 Scoliotic vertebra convex side 30 Spinal disk 40 Biological
implant - bone growth promoting 50 Biological implant - bone growth
inhibiting
[0017] Referring now to the drawings, the invention is a first bone
growth stimulating and promoting cytokine type biological implant
40 comprising PTH coated with a controlled release biodegradable
coating that is implanted preferably in close proximity to a
concave side 12 of a scoliotically curved spine 10, and a second
bone growth inhibiting type biological implant 50 comprising a bone
growth inhibiting composition such as methotrexate coated with a
controlled release biodegradable coating that is implanted
preferably in close proximity to a convex side 14 of a
scoliotically curved spine 10. More specifically, implant 40 is
preferably implanted between a concave side 22 of a first scoliotic
vertebra 20 and a concave side 22 of a second scoliotic vertebra
20, so as to be in near proximity to at least one growth plate of
vertebra 20 and so as to be in near proximity to disk 30 and
implant 50 is preferably implanted between a convex side 24 of a
first scoliotic vertebra 20 and a concave side 24 of a second
scoliotic vertebra 20, so as to be in near proximity to at least
one growth plate of vertebra 20 and so as to be in near proximity
to disk 30. Alternatively, it is noted however, that rather than
both bone growth promoting implant 40 and bone growth inhibiting
implant 50 being used in combination, bone growth promoting implant
40 may be used without bone growth inhibiting implant 50, and bone
growth inhibiting implant 50 may be used without bone growth
promoting implant 40. First biological implant 40 is preferably
inserted between a first vertebra 20 and a second vertebra 20 on
concave side 12 of scoliotically curved spine 10 by means of
inserting the tip of a trocar into the desired area of concave side
12 of scoliotically curved spine 10, and passing implant 40 through
the trocar and into the desired area of scoliotically curved spine
10 of a patient. Second biological implant 50 is preferably
inserted between a first vertebra 20 and a second vertebra 20 on
convex side 14 of scoliotically curved spine 10 by means of
inserting the tip of a trocar into the desired area of convex side
14 of scoliotically curved spine 10, and passing implant 50 through
the trocar and into the desired area of scoliotically curved spine
10 of a patient. Such insertion of biological implants 40 and 50 is
highly non-invasive, requiring only small incisions, as compared to
more conventional spine surgical methods which require large and
invasive surgical cuts. Further, the insertion of such biological
implants 40 and 50 does not decrease spinal mobility or spinal
range of motion. Over the course of time, the implants 40 and 50
dissolve releasing the bone growth simulating cytokine and/or the
bone growth inhibiting anti-metabolite or functional equivalent to
vertebrae 10. In response to such implantation, vertebrae 10 grows
a greater amount on concave side 12 of the vertebrae 10 than on
convex side 14 of vertebrae 10. The asymmetric growth of vertebrae
10 over time causes vertebrae 10 to transition from a substantially
scoliotically curved configuration to a substantially
non-scoliotically curved configuration.
[0018] It is noted that the disclosed invention is preferably
practiced in combination with a screening test that screens
patients for a predisposition to scoliosis, and more especially,
that screens scoliosis patients for a predisposition to scoliosis
curve progression. Such scoliosis and scoliosis curve progression
screening is disclosed in U.S. patent Application Ser. Nos.
60/806,498, 60/825,260, 60/825,249, 60/862,276, 11/968,046,
11/968,074, 12/024,495, and 61/082,503 the whole of which are
incorporated herein by reference. Thus by means of employing such
screening, the method and apparatus for bone growth management
using a biological implant as disclosed herein, is preferably only
practiced on those patients who are determined to be at risk for
scoliosis curve development or progression.
[0019] It is noted that the disclosed invention may further be
practiced in combination with applying a brace to the patient. An
exemplary brace for the treatment of scoliosis preferably used in
combination with the method and apparatus for bone growth
management using a biological implant as disclosed herein is
disclosed in U.S. patent application Ser. No. 12/145,959, the whole
of which is incorporated herein by reference.
[0020] It is noted that the disclosed invention may further be
practiced in combination with preferably minimally invasive
non-biological implants for the correction of a scoliotically
curved spine. An exemplary non-biological implant for the treatment
of scoliosis preferably used in combination with the method and
apparatus for bone growth management using a biological implant as
disclosed herein is disclosed in U.S. patent application Ser. No.
11/259,941 which the current application is a continuation-in-part
thereof, and the whole of which is incorporated herein by
reference.
[0021] It is noted that in an alternative to a biological implant
that completely dissolves over time, the implant of the present
invention may be a permanent implant. It is also noted that in an
additional embodiment, the implant may alternatively be placed on a
side of the disc or in the general vicinity of the concave or
convex side of the spine.
[0022] The present invention may be embodied in other specific
forms without departing from its spirit or essential
characteristics. The described embodiments are to be considered in
all respects only as illustrative and not restrictive. The scope of
the invention is, therefore, indicated by the appended claims
rather than by the foregoing description. All changes which come
within the meaning and range of equivalency of the claims are to be
embraced within their scope.
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