Orthopedic Journal of China 2008;16(8):594-598

Structural augmentation with biomaterial loaded allograft threaded cage for the treatment of femoral head osteonecrosis surgical technique

Shuhua YANG ; Xinghuo WU ; Cao YANG ; Weihua XU ; Jin LI ; Shunan YE

Keywords

osteonecrosis of the femoral heaud(ONFH); allograft threaded cage; core decompression; decalcified bone matrix(DBM); autogenous bone graft

Country

China

Language

Chinese

Abstract

[Objective]To introduce the surgical technique and its rationale and to evaluate the early and mid-term clinical outcome of routine core decompression and insertion of a biomaterial loaded allograft threaded cage(ATC)in the treatment of necrotic femoral head．[Methods]Seventy-six patients(78 hips)with femoral head necrosis were allocated to a program of either core decompression or core decompression and implantation of ATC．[Results]At review all patients had a minimum follow-up of 24-months(24 to 68 months)．In the control group，no significant improvement in Harris hip score(HHS)was found，and 13 of the 22 hips had deteriorated to stageⅢ．In the treatment group．the mean HHS was improved from 62．8 to 81．6．Collapse was seen in 1 hip，and this collapse Was progressive in 3 hips．[Conclusion]It，s thus evident that the technique is attractive as a salvage procedure．which shows encouraging Success rates and early clinical results.