Treatment of early avascular necrosis of femoral head: core decompression with tantalum rod implantation is better than core decompression with bone implantation

doi:10.3969/j.issn.2095-4344.2014.05.027

Abstract

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 collapse. 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. All the subjects were followed 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: All involved patients were followed 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 overall 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 collapse, improve hip function and delay the process of osteonecrosis of the femoral head.

中国组织工程研究杂志出版内容重点：肾移植；肝移植；移植；心脏移植；组织移植；皮肤移植；皮瓣移植；血管移植；器官移植；组织工程

全文链接：

Key words: femur head necrosis, bone transplantation, tantalum, X-rays, hip joint

CLC Number:

R318

Li Yang, Feng Shi-qing. Treatment of early avascular necrosis of femoral head: core decompression with tantalum rod implantation is better than core decompression with bone implantation[J]. Chinese Journal of Tissue Engineering Research, 2014, 18(5): 815-820.

Figures/Tables 3

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