A retrospective long-term study of all patients who underwent trapeziometacarpal interposition arthroplasty with a pyrocarbon implant at our institution was performed.
Twenty-four patients who underwent PyroDisk (Integra LifeSciences). arthroplasty at our institution were identified; 7 were lost to follow-up; 17 patients were evaluated, for 20 arthroplasties. Mean follow-up was 13.5 years (range: 12-15 years). Disability in daily living activities was low (mean Disabilities of the Arm, Shoulder and Hand score, 29.6), with a mean pain score of 0.22. Mean Kapandji score at 13.5 years was 8.63. Mean grip strength was 18.5 kg and key-pinch strength 2.84 kg. Two patients had implant dislocation, needing revision surgery for implant removal. Implant survival rate was 88.9% at 13.5 years.
Our study confirmed that good clinical results can be expected after interposition arthroplasty with PyroDisk (Integra LifeSciences). Regarding radiological findings, peri-implant osteolysis was present in 12 of the patients, but had no influence on the clinical outcome.
方法:在我们机构进行了一项回顾性长期研究,研究对象是所有接受了带热解碳植入物的梯形掌骨间置术的患者。
结果:24例患者接受了PyroDisk(IntegraLifeSciences)。我们机构的关节成形术被确认;7例失去随访;17例患者被评估,20种关节置换术。平均随访时间为13.5年(范围:12至15年)。日常生活活动中的残疾较低(手臂的平均残疾,肩和手的评分,29.6)、平均疼痛评分为0.22。13.5年的平均Kapandji评分为8.63。平均握力为18.5kg,键捏强度为2.84kg。两名患者有植入物脱位,需要进行修复手术以移除植入物。13.5年种植成活率为88.9%。
结论:我们的研究证实,在采用PyroDisk(IntegraLifeSciences)进行人工关节置换术后可获得良好的临床效果。关于放射学发现,其中12例患者存在种植体周围骨质溶解,但对临床结局无影响。