This study selects 30 patients (55 feet) with moderate to severe bunion valgus were treated with small incision osteotomy from October 2022 to October 2023 to observe the effect of BMI in different ranges on the curative effect of small incision osteotomy for hallux valgus. Preoperatively, we complete the basic information of the patient, measure and record the patient's height and weight, take weight-bearing anteroposterior and lateral X-rays of the affected foot before and after surgery, and measure the Hallux Valgus Angle (HVA), Intermetatarsal Angle (IMA) between the first and second metatarsals, the calcaneal pitch angle (CPA), and the distal metatarsal articular angle (DMAA). The American Orthopaedic Foot and Ankle Society (AOFAS) Ankle-Hindfoot Scoring Scale is used for scoring, and the Visual Analog Scale (VAS) is used for pain scoring. The surgical results are as follows: Thirty patients were followed up effectively for 6 months. The first metatarsal osteotomy site in all patients achieved bony union, and the deformity of the toes was corrected. No complications such as metatarsal head avascular necrosis or transfer metatarsalgia occurred in the affected foot postoperatively. By comparing the preoperative and postoperative conditions of patients with different BMI indices, the HVA and IMA were significantly reduced compared to preoperatively, the AOFAS score increased, and the VAS score decreased, with all differences being statistically significant (P<0.01). In the patient group with a BMI ≤ 23.9, the changes in HVA and IMA were more significant than in the group with a BMI > 24. According to the experimental results, patients with a high BMI index may have increased body weight postoperatively, which can increase the load on the foot during standing and walking, cause relaxation of the foot ligaments, and compensatory hyperplasia of the bone-bearing parts, affecting the postoperative efficacy of hallux valgus and potentially becoming one of the risk factors for the recurrence of hallux valgus.

Zhang Jin, Zhang Le, He Linjie, Zhao Jun, Liu Jian. The influence of BMI on the effect of small incision osteotomy manipulation in the treatment of hallux valgus. Frontiers in Medical Science Research (2024), Vol. 6, Issue 9: 64-68. https://doi.org/10.25236/FMSR.2024.060910.

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