OrthoCarolina, Foot and Ankle Institute, Charlotte, NC, USA.
Foot Ankle Int. 2013 Oct;34(10):1381-8. doi: 10.1177/1071100713488762. Epub 2013 Apr 26.
Ball and socket ankle (BASA) deformity is a rare condition. Little is known about outcomes and treatments in the adult population.
Retrospective comparative review was performed of 13 patients treated for BASA with a minimum follow-up of 2.5 years. Evaluation included clinical and radiographic review, outcome scores, a questionnaire, and a subjective satisfaction survey.
Nine patients with correctable valgus deformity not associated with arthritis of the ankle joint underwent a supramalleolar osteotomy (SMO). Four patients underwent arthrodesis-2 a tibiotalocalcaneal (TTC) arthrodesis and 2 a pantalar arthrodesis. AOFAS scores improved from 30.1 to 77.6 (range, 16-82) (P < .05) in the SMO group. AOFAS scores improved from 24 to 60.5 (range, 16-66) (P < .05) in the arthrodesis group. Arthritis grade in the SMO patients was unchanged in 4 patients at final follow-up and worsened in 5 patients by only 1 grade. Nine patients reported good results (all 4 arthrodesis patients, 5 SMO patients) and 4 reported fair results (all SMO patients).
BASA deformity and dysfunction can be improved with corrective surgery.
Level III, prospective comparative study.
球窝踝（BASA）畸形是一种罕见的病症。对于成年人群体，人们对其结果和治疗方法知之甚少。
对 13 例 BASA 患者进行了回顾性对比研究，这些患者的随访时间至少为 2.5 年。评估包括临床和影像学检查、结果评分、问卷调查和主观满意度调查。
9 例可矫正的外翻畸形且不伴有踝关节关节炎的患者接受了距下骨上截骨术（SMO）。4 例患者接受了三关节融合术-距下关节融合术和 2 例距舟跟骰关节融合术。SMO 组 AOFAS 评分从 30.1 提高到 77.6（范围，16-82）（P <.05）。融合组 AOFAS 评分从 24 提高到 60.5（范围，16-66）（P <.05）。在 SMO 患者中，4 例患者的关节炎分级在最终随访时没有变化，5 例患者仅恶化了 1 级。9 例患者报告结果良好（所有 4 例融合患者，5 例 SMO 患者），4 例报告结果尚可（所有 SMO 患者）。
BASA 畸形和功能障碍可以通过矫正手术得到改善。
III 级，前瞻性对比研究。
