Glenoid loosening in total shoulder arthroplasty. Association with rotator cuff deficiency.
Glenoid loosening in total shoulder arthroplasty. Association with rotator cuff deficiency.
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DOI：
10.1016/s0883-5403(88)80051-2
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发表时间：
1988-01-01
期刊：
影响因子：
--
通讯作者：
Matsen, F A 3rd
中科院分区：
文献类型：
--
作者：
Franklin, J L;Barrett, W P;Matsen, F A 3rd
对7例全肩关节置换术的患者进行评估，以确定与肾盂关节松动相关的因素。关节置换时间14~44个月，平均30个月。其中6名患者在手术时出现了严重的、不能完全重建的肩袖撕裂，1名患者在手术后1年内发生了肩袖撕裂。肱骨假体的优势移位量与关节臼松动的程度密切相关。随着肱骨假体的上端移位，可以观察到肾盂假体的上端倾斜：一个“摇马式”的肾盂。为了进行比较，我们回顾了一组连续16例肩袖完整的全肩关节置换术患者。对照组术后平均5年无关节突关节松动。肩袖缺失患者的人工肩关节抬高可能会导致全肩关节置换术中的肾盂假体松动。
Seven cases of total shoulder arthroplasty exhibiting major glenoid radiolucent lines or actual translation of the glenoid component were evaluated to identify factors associated with glenoid loosening. The average time from arthroplasty was 30 months (range, 14-44 months). Six of the patients had severe, incompletely reconstructable rotator cuff tears present at the time of surgery, and one patient developed a cuff tear within 1 year of surgery. The amount of superior migration of the humeral component was closely correlated with the degree of glenoid loosening. With superior displacement of the humeral component, superior tipping of the glenoid component was observed: a "rocking horse" glenoid. For comparison, a contemporary group of 16 consecutive total shoulder arthroplasty patients with intact rotator cuffs were reviewed. The control group had no glenoid loosening an average of 5 years after operation. Upward riding of the prosthetic humeral head in patients with rotator cuff deficiency may contribute to loosening of the glenoid component in total shoulder arthroplasty.