Ohzawa Seiya, Kubota Makoto
Department of Orthopaedic Surgery, Kurashiki Medical Center, 250 Bakuro-cho, 710-8522 Kurashiki, Japan.
Department of Orthopaedic Surgery, Jikei University School of Medicine, Tokyo, Japan.
Foot Ankle Surg. 2018 Dec;24(6):501-505. doi: 10.1016/j.fas.2017.05.013. Epub 2017 Jun 17.
The purpose of this retrospective study was to evaluate the clinical and radiological results of hallux valgus surgery using a plantar locking plate.
Proximal oblique metatarsal osteotomy combined with distal soft tissue treatment was performed in 59 adult patients (68 feet) with hallux valgus, using an anatomically pre-contoured plantar locking plate for fixation of the osteotomy. The median age was 64.0 years and the median follow-up period was 16.5 months.
The mean JSSF scale improved significantly from 56.0 points preoperatively to 95.8 points postoperatively. The mean intermetatarsal angle and hallux valgus angle decreased from 16.4° and 41.8° preoperatively to 4.2° and 10.8° postoperatively, respectively. The mean inclination angle was 19.9° preoperatively and 20.5° postoperatively. Removal of hardware was needed in 2 feet (2.9%).
Proximal oblique metatarsal osteotomy is an effective method for relief of pain and improvement of function in correction of hallux valgus deformity. Use of a plantar locking plate provides sufficient maintenance of the correction, and complications associated with the hardware are rare.
本回顾性研究的目的是评估使用跖侧锁定钢板进行拇外翻手术的临床和影像学结果。
对59例成年拇外翻患者（68足）进行近端斜行跖骨截骨术并结合远端软组织治疗，使用解剖预塑形的跖侧锁定钢板固定截骨处。中位年龄为64.0岁，中位随访期为16.5个月。
日本足外科协会（JSSF）评分均值从术前的56.0分显著提高至术后的95.8分。跖间角和拇外翻角均值分别从术前的16.4°和41.8°降至术后的4.2°和10.8°。术前平均倾斜角为19.9°，术后为20.5°。2足（2.9%）需要取出内固定物。
近端斜行跖骨截骨术是缓解拇外翻畸形疼痛和改善功能的有效方法。使用跖侧锁定钢板可充分维持矫正效果，且与内固定物相关的并发症罕见。
