Abstract：
Trapeziometacarpal osteoarthritis is the second most common degenerative articular disease. Although initial therapy should be conservative, surgical treatment is often required. Several surgical techniques have been described, but none has proved to be a gold-standard. The objective of this study was to evaluate the long-term clinical and radiological results of trapeziometacarpal interposition arthroplasty with the PyroDisk implant (Integra LifeSciences).
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.
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.
摘要：
目的：梯形掌骨关节炎是第二常见的退行性关节疾病。虽然最初的治疗应该是保守的，通常需要手术治疗。已经描述了几种手术技术，但没有一个被证明是黄金标准。这项研究的目的是评估使用PyroDisk植入物（IntegraLifeSciences）进行梯形掌骨间置术的长期临床和放射学结果。
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。
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。
