Third-Generation Minimally Invasive Chevron Akin Osteotomy for Hallux Valgus

Area of Science:

• Orthopedic surgery
• Foot and ankle surgery
• Minimally invasive procedures

Background:

• Hallux valgus surgery has evolved with various techniques.
• The third-generation minimally invasive chevron Akin (MICA) osteotomy represents a recent advancement.
• This study is among the first to evaluate MICA from a non-originator center using validated patient-reported outcomes.

Purpose of the Study:

• To assess the safety and effectiveness of the third-generation MICA osteotomy for hallux valgus.
• To evaluate patient-reported outcomes and radiographic changes following MICA.
• To determine complication and recurrence rates associated with the MICA procedure.

Main Methods:

• A consecutive series of forty patients undergoing third-generation MICA for hallux valgus.
• Primary outcome measures: Manchester-Oxford Foot Questionnaire (MOXFQ) and American Orthopaedic Foot & Ankle Society (AOFAS) scores at 12 months.
• Secondary outcome measures: radiographic parameters, complications, and recurrence rates.

Main Results:

• Significant improvements in MOXFQ (58 to 10) and AOFAS (48 to 93) scores at 12 months.
• Radiographic correction: Hallux valgus angle improved from 32 to 12 degrees; intermetatarsal angle from 13 to 7 degrees.
• Low complication rate: 4 cases required Akin screw removal; no recurrences observed.

Conclusions:

• Third-generation MICA osteotomy is a safe and effective treatment for hallux valgus.
• The technique demonstrates good patient outcomes and radiographic correction.
• Further research on long-term results and comparisons with other techniques is warranted.