Revision of Total Hip Arthroplasty Using an Anterior Cortical Window, Extensive Strut Allografts, and an Impaction Graft: Follow-up Study

Journal of Orthopaedic Surgery - Tập 12 Số 1 - Trang 25-30 - 2004
Muhammad Arif1, Sureshan Sivananthan1, David Choon1
1Department of Orthopaedic Surgery, University Malaya Medical Centre, Lembah Pantai, Kuala Lumpur, Malaysia

Tóm tắt

Purpose. To report the outcome of revised total hip arthroplasty procedures involving an anterior cortical window, extensive strut allografts, and an Exeter impaction graft. Method. Eight patients (9 hips) with a mean age of 58 years underwent revision of total hip arthroplasty using the Exeter hip impaction graft system and strut allografts between 1995 and 1998. An extensile anterior approach was used, and an anterior cortical window was created in the femur, to remove the old implant. External strut allografts were attached by wires to provide cortical support. The mean follow-up duration was 74 months. Indications for surgery were aseptic loosening of previous implants in 8 hips and infection of one hip that had previously undergone total arthroplasty. Results. 19 Dall Miles cables, 4 ordinary cerclage wires, and 8 cerclage wires tightened with the clincher knot technique were used to secure the allograft to the host bone. The strut grafts were found to be incorporated in all cases. No wires became loose. One patient developed 20° of angulation at the allograft-host bone junction. Using the method of Fowler and Gie, we found that one femoral implant had subsided 2 mm within the cement mantle. Two other implants had 1 mm of subsidence at the cement bone interface, and one patient had a major subsidence of 15 mm that required revision. Conclusion. Using an anterior cortical window in the femur to remove the old implant does not predispose to failure of the allograft to incorporate into the host bone.

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Thông tin xuất bản

Journal of Orthopaedic Surgery

Tập 12 Số 1

25-30

Thông tin tác giả