Abstract
Background/Purpose
Minimally invasive surgery (MIS) has become popular in every specialty. Different distal metatarsal osteotomy methods using minimally invasive percutaneous approach with or without fixation have been proposed to treat mild to moderate degrees of hallux valgus.
Methods
From June 2010 to May 2012, we performed 23 percutaneous chevron osteotomies with screw fixation in 20 patients.
Results
At 18 months postoperatively, the mean hallux valgus angle (HVA) was corrected from 31.68° to 14.39°, mean intermetatarsal angle (IMA) from 13.77° to 7.98° and mean American Orthopaedic Foot and Ankle Society (AOFAS) score from 59.26 to 88.35. There were four cases of medial plication stitch impingement and four cases with screw impingement but no other complications such as joint stiffness, avascular necrosis of metatarsal head, union complication, wound infection or deep vein thrombosis.
Conclusion
The mid-term results are encouraging, indicating that this is an effective method in the treatment of mild to moderate hallux valgus with advantages of percutaneous technique. Further study with longer-term results and larger sample size is needed in order to compare with other percutaneous or open techniques.