Treatment of early avascular necrosis of femoral head:core decompression with tantalum rod implantation is better than core decompression with bone implantation
10.3969/j.issn.2095-4344.2014.05.027
- VernacularTitle:早期股骨头缺血性坏死治疗：髓芯减压并钽棒优于并植骨
- Author:
Yang LI
;
Shiqing FENG
- Publication Type:Journal Article
- Keywords:
femur head necrosis;
bone transplantation;
tantalum;
X-rays;
hip joint
- From:
Chinese Journal of Tissue Engineering Research
2014;(5):815-820
- CountryChina
- Language:Chinese
-
Abstract:
BACKGROUND:Core decompression with bone implantation in treatment of early avascular necrosis of femoral head may provide insufficient support for subchondral bone and increase the risk of fracture and col apse. Tantalum rod implantation can not only provide good biological support, but also promote the revascularization at necrotic regions, thus repairing the necrosis of femoral head.
OBJECTIVE:To evaluate the efficacy of core decompression, core decompression with bone implantation and core decompression with tantalum rod implantation in treating early-stage avascular necrosis of femoral head. METHODS:A total of 24 cases (28 hips) who suffered from ARCO I/II avascular necrosis of femoral head were treated with core decompression with bone implantation, and 25 cases (29 hips) who suffered from ARCO I/II avascular necrosis of femoral head were treated with core decompression with tantalum rod implantation. Al the subjects were fol owed up for 24 months. The efficacy of two different surgical methods was evaluated before and after treatment by observing the changes in Harris scores.
RESULTS AND CONCLUSION:Al involved patients were fol owed up. Harris score of core decompression with bone implantation group were increased 4.93 points at 6 months after surgery;Harris score of core decompression with tantalum rod implantation group were increased 6.89 points at 6 months after surgery. There were significant differences between two groups before and after surgery (P<0.05). After 12 months, Harris scores in the two groups were both significantly increased and the scores of core decompression with tantalum rod implantation group was higher than that of core decompression with bone implantation group (P<0.05). The overal fine/excellent rate of core decompression with tantalum rod implantation group was 83%, which was better than core decompression with bone implantation group (75%). After 24 months, X-ray score of core decompression with tantalum rod implantation group was significantly higher than core decompression with bone implantation group (P<0.05). Comparing with core decompression with bone implantation, core decompression with tantalum rod implantation can better prevent femoral head col apse, improve hip function and delay the process of osteonecrosis of the femoral head.
