Treatment of hallux valgus with modified Mitchell operation
- VernacularTitle:改良Mitchell手术治疗外翻
- Author:
Wei WANG
;
Jianfeng WANG
;
Hua HAO
- Publication Type:Journal Article
- Keywords:
Hallux valgus;
Inner-fixation of fractures;
Treating result
- From:
Orthopedic Journal of China
2006;0(05):-
- CountryChina
- Language:Chinese
-
Abstract:
[Objective]To observe the effect of treating hallux valgus with modified Mitchell operation.[Method]A total of 18 cases(28 feet) of hallux valgus were treated with modified Mitchell operation from Apr.2000 to Oct.2003.The average preoperative hallux valgus angle(HVA) was 30.5 according to the X-ray images,while the average intermetatarso-phalangeal angle(IMA) was 13.5.The difference between the modified Mitchell operation and normal one was that only one transverse osteotomy need to be carried out in the distal metatarsal without lateral ridge left.The distal position of osteotomy was extended according to the sum of IMA and then moved to the metatarso side by 2~3 mm.Absorbable screws were used for fixation.[Result]All 28 feet were followed up for 10~32 months.It showed excellent result in 24 feet,good in 3,and bad in 1,with the total satisfactory rate of 92.9%.According to the postoperative weight-loading X-ray checking result,the average HVA was 15.5,with an average improving of 15;the average IMA was 8.5,with an average improving of 5.[Conclusion]The modified Mitchell operation can correct the metatarso-varus without destroying the biomechanical status.The loading function of great toe could be resumed by the removing of the first metatarso head.
