Berry D J, Sutherland C J, Trousdale R T, Colwell C W, Chandler H P, Ayres D, Yashar A A
Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN 55905, USA.
Clin Orthop Relat Res. 2000 Feb(371):154-60. doi: 10.1097/00003086-200002000-00019.
Thirty-eight oblong bilobed noncustom uncemented, porous-coated titanium acetabular components were used to reconstruct failed hip arthroplasties with large superior segmental acetabular bone deficiencies. No structural bone grafts were used. All patients were followed up for 2 to 5 years (mean, 3 years) after the operation. One patient (whose socket rested primarily on a structural bone graft from a previous procedure) had revision surgery for acetabular loosening. No other patients have had revision surgery or had another ipsilateral hip operation. At latest followup, 35 patients had no or mild pain and two patients had moderate pain. Two implants migrated more than 2 mm in the first year, then stabilized. On the latest radiographs, two implants had bead shedding, but there was no measurable migration or change in position. For selected patients with large superolateral acetabular bone deficiencies, this implant facilitated a complex reconstruction, provided good clinical results, and showed satisfactory stability at early to midterm followup in most patients.
使用38个长方形双叶非定制非骨水泥多孔涂层钛髋臼组件重建存在髋臼上半部分大块骨缺损的失败髋关节置换术。未使用结构性骨移植。所有患者术后随访2至5年（平均3年）。1例患者（其髋臼杯主要依靠先前手术的结构性骨移植支撑）因髋臼松动接受了翻修手术。没有其他患者接受翻修手术或同侧髋关节再次手术。在最近一次随访时，35例患者无疼痛或轻度疼痛，2例患者有中度疼痛。2枚植入物在第一年移位超过2 mm，随后稳定。在最近的X线片上，2枚植入物出现珠粒脱落，但无可测量的移位或位置改变。对于部分存在髋臼上外侧大块骨缺损的患者，这种植入物有助于进行复杂重建，临床效果良好，并且在大多数患者的早期至中期随访中显示出令人满意的稳定性。
