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1. It is preliminarily concluded that subchondral bone drilling is feasible for repairing full-thickness articular cartilage defects.

2. Pathologic analysis revealed a subchondral fracture with callus formation, indicated by the presence of woven bone, in all cases.

3. Infection must be suspected if part of the subchondral bone of the acetabulum or femoral head is eroded or if bone has been resorbed about an internal fixation deice.

4. The screws engage subchondral bone but remain extraarticular. A 3- or 4-hole mini-fragment plate is then contoured to fit anteriorly along the lateral column of the humerus.

5. Results:The outcome revealed that the patellar subchondral bone of the lateral facet has the best biomechanical character than the other sections.

6. The direction of condylar subchondral bone trabeculae was arranged obviously perpendicular to the articular surface in central and posterior parts in the disordered occlusion group.

7. Preliminary concluded: Subchondral bone drilling is feasible for repairing full thickness articular cartilage defects.

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8. Cross-sectional structure changes in the junction between subchondral plate and cancellous were the place where stress concentrated.

9. The capsule of the FJ, subchondral bone, and synovium are richly innervated and can be a potential source of the low back pain.

10. Osteochondrosis can also present as cracks in the cartilage and cysts in the underlying subchondral bone.

11. More advanced disease is manifested by severe joint space narrowing, marked osteophyte formation at the joint margins, dense sclerosis of subchondral bone, and subchondral cysts.

12. Then, on this basis, the bone marrow stromal cells were cultured with the scaffold biomaterials, and the engineering cartilage and subchondral bone restorations were constructed in vitro.

13. The facet joints (FJ) are the only synovial joints in the spine, with hyaline cartilage overlying subchondral bone, a synovial membrane, and a joint capsule.

14. Objective To observe the effect of Tougu Xiaotong granula(TGXT) on subchondral bone remodeling and investigate the mechanism.

15. Peripheral joint involvement is most common in the hips and shoulders and may result in uniform. joint space narrowing, cystic or erosive changes, and subchondral sclerosis without osteopenia.

16. OA, on the other hand, is considered as a disease of cartilage failure with secondary bone changes, such as osteophytes and subchondral sclerosis.

17. All composite materials PMMA/HA were compressed on a mechanical material machine to determine their ultimate strength and stiffness, then compared with subchondral bone.

18. The distal femur, proximal tibia, and distal medial tibial plates designed by the AO/ASIF are designed to have their subchondral screws parallel to the joint line in the coronal plane.

19. Its feature symptom is limitations of joint cartilage degeneration and new bones forming among joint edge and subchondral osteophyte.

20. Results. Radiographs revealed degenerative changes, such as disc space narrowing and irregularity, subchondral sclerosis, osteophyte formation, and hypertrophy of vertebral endplates in all groups.