Department of Orthopedic Surgery. 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, People's Republic of China.
Department of Orthopedics, 920 Hospital of the Joint Logistic Support Force, People's Liberation Army of China, Kunming, People's Republic of China.
J Hand Surg Am. 2024 Jul;49(7):708.e1-708.e6. doi: 10.1016/j.jhsa.2022.09.008. Epub 2023 Mar 14.
To explore the results of using the mini-ring Ilizarov external fixator for thumb metacarpal lengthening and its compatibility with a simultaneous groin flap.
From May 2016 to June 2019, 17 adult patients with thumb loss were treated with metacarpal lengthening using a mini-ring Ilizarov device. The device was composed of 2 rings, threaded rods, nuts, and K-wires (diameter, 1.5 mm). Of these patients, 6 also underwent simultaneous groin flap transfer. Lengthening was started 3 days after surgery at a rate of 0.66 mm/d. The pedicle of the groin flap was divided 1 month after the surgery. The healing index (days per cm), which denotes the number of days the external fixator is attached to the bone per centimeter of length gained, was used to evaluate the lengthening efficiency.
The patients were observed for 21.9 ± 9.0 months. The lengthening continued for 29.1 ± 4.5 days, resulting in an additional length of 1.9 ± 0.3 cm.
The mini-ring Ilizarov external fixator is a simple device for primary metacarpal lengthening. This device can be used with a groin flap for single-stage lengthening of injured thumbs with bone exposure.
TYPE OF STUDY/LEVEL OF EVIDENCE: Therapeutic IV.
探讨使用微型环式伊利扎洛夫外固定架进行拇指掌骨延长的效果及其与同期腹股沟皮瓣的兼容性。
自 2016 年 5 月至 2019 年 6 月，采用微型环式伊利扎洛夫装置对 17 例拇指缺失的成人患者进行掌骨延长治疗。该装置由 2 个环、螺纹杆、螺母和 K 线（直径 1.5 毫米）组成。其中 6 例患者同时进行了同期腹股沟皮瓣转移。术后 3 天开始以 0.66 毫米/天的速度进行延长。术后 1 个月切断腹股沟皮瓣蒂。愈合指数（每厘米天数）用于评估延长效率，它表示每厘米获得的骨延长长度，外固定器附着在骨上的天数。
患者平均随访 21.9±9.0 个月。延长持续 29.1±4.5 天，最终获得 1.9±0.3cm 的额外长度。
微型环式伊利扎洛夫外固定架是一种用于掌骨干初级延长的简单装置。该装置可与腹股沟皮瓣联合使用，用于单一阶段延长伴有骨外露的受伤拇指。
研究类型/证据水平：治疗性 IV 级。
