Meding J B, Ritter M A, Keating E M, Faris P M
Center for Hip and Knee Surgery, Mooresville, Indiana 46158, USA.
J Arthroplasty. 1997 Apr;12(3):273-80. doi: 10.1016/s0883-5403(97)90023-1.
Two hundred three consecutive primary uncemented total hip arthroplasties were prospectively randomized using collared and collarless versions of an identical titanium stem. Identical 28-mm titanium heads were implanted in all cases. One hundred three collared hips were compared with 100 collarless hips. Follow-up periods averaged 45.7 months in both groups. Intraoperative, early, and late complications were similar. Hip scores, including thigh pain, at final follow-up visit were also similar. No significant differences were noted in acetabular or femoral radiolucencies, subsidence, osteolysis, or proximal femoral remodeling. At 5 years, more collarless stems revealed pedestal formation (57.1% vs 33.9%). The presence of a collar had no effect on the adequacy of fixation, proximal femoral osteopenia, or clinical scores at 5 years.
使用相同钛柄的带颈和无颈版本，对203例连续的初次非骨水泥型全髋关节置换术进行前瞻性随机分组。所有病例均植入相同的28毫米钛头。将103例带颈髋关节与100例无颈髋关节进行比较。两组的随访期平均为45.7个月。术中、早期和晚期并发症相似。末次随访时的髋关节评分，包括大腿疼痛，也相似。在髋臼或股骨透亮区、下沉、骨溶解或股骨近端重塑方面未发现显著差异。在5年时，更多无颈柄出现基座形成（57.1%对33.9%）。颈的存在对5年时的固定充分性、股骨近端骨质减少或临床评分没有影响。
