Minimally invasive treatment of mild to moderate hallux valgus with frequency conversion waterflood ultrasound extracapsular osteotomy
10.3760/cma.j.cn114453-20210817-00348-1
- VernacularTitle:变频注水超声骨刀囊外截骨微创治疗轻中度 外翻
- Author:
Mingliang XU
1
;
Xiangguo ZHOU
;
Di WEI
;
Guoliang CHEN
;
Han YUAN
;
Xing SU
;
Rongjian SHI
Author Information
1. 徐州仁慈医院足踝外科，徐州 221004
- Keywords:
Foot deformities;
Hallux valgus;
Osteotomy;
Extracapsular osteotomy;
Minimally invasive;
Ultrasonic bone cutter;
Frequency conversion
- From:
Chinese Journal of Plastic Surgery
2022;38(9):1035-1040
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the effect of minimally invasive treatment of mild to moderate hallux valgus using frequency conversion waterflood ultrasound extracapsular osteotomy.Methods:The data of patients with mild to moderate hallux valgus who were treated with frequency conversion waterflood ultrasound extracapsular osteotomy at Department of Foot and Ankle Surgery, Xuzhou Renci Hospital from August 2017 to August 2020 were retrospectively analyzed. During the operation, the metatarsal bone was truncated outside the capsule of the medial joint of the first metatarsal head with frequency conversion waterflood ultrasound osteotomy to correct the hallux valgus deformity. The changes of hallux valgus angle (HVA), the first and second intermetatarsal angle (IMA), the distal articular surface angle of the first metatarsal bone (DMAA) and the range of motion(ROM) of the first metatarsophalangeal joint were compared before operation and at the last follow-up. The American Foot and Ankle Society (AOFAS) forefoot scoring system was used to evaluate the clinical effect. Measurement data with normal distribution were expressed as Mean±SD and analyzed by t-test. Results:A total of 32 patients (53 feet) were enrolled, including 6 males and 26 females; 28 left feet and 25 right feet; age (34.5±7.8) years old. All patients were followed up for (13.0±5.9) months. All osteotomy sites healed without metastatic metatarsalgia, infection and deformity recurrence. At the last follow-up, HVA, IMA, and DMAA were all improved compared with those before surgery [(11.25±1.59) ° vs. (33.45±4.45) °; (6.83±0.95) ° vs. (14.96±2.10) °; (6.26±1.92) ° vs. (23.64±4.72) °; all P<0.01], AOFAS forefoot score was significantly higher than that before operation (90.96±2.92 vs. 59.22±5.63, P<0.01). There was no significant difference in the ROM of the first metatarsophalangeal joint before and after operation ( P>0.05). Conclusions:The application of frequency conversion waterflood ultrasonic bone cutter combined with extracapsular osteotomy for minimally invasive treatment of mild to moderate hallux valgus has the advantages of small damage, inconspicuous scars, and reliable correction. It can be popularized in clinical practice.
