Modified minimal incision subcapital osteotomy for hallux valgus correction

Area of Science:

• Orthopaedic Surgery
• Foot and Ankle Surgery
• Minimally Invasive Procedures

Background:

• Hallux valgus (HV) deformity presents challenges in surgical correction.
• Traditional open techniques may involve significant soft-tissue disruption.
• Minimally invasive surgery offers potential advantages like reduced exposure and blood supply impairment.

Purpose of the Study:

• To evaluate the efficacy and outcomes of a modified minimally invasive osteotomy for hallux valgus correction.
• To compare radiographic and clinical results with traditional open surgical methods.

Main Methods:

• Retrospective review of 126 patients (146 feet) treated with minimally invasive osteotomy from 2006-2009.
• Radiographic assessment of hallux valgus angle, 1-2 intermetatarsal angle, and tibial sesamoid position.
• Clinical outcomes measured using the American Orthopaedic Foot and Ankle Society Hallux Metatarsophalangeal Interphalangeal (AOFAS HMI) score.

Main Results:

• Significant reduction in HV angle (32.3° to 4.5°) and IM angle (14.4° to 4.8°) (P < .01).
• Improved tibial sesamoid position (6.3 to 2.5) and AOFAS HMI scores (54.6 to 85.3) (P < .01).
• 10.3% complication rate including hallux varus and delayed union.

Conclusions:

• Modified minimally invasive osteotomy is an effective technique for hallux valgus correction.
• Achieves comparable radiographic and clinical outcomes to open procedures.
• Offers potential benefits of minimally invasive surgery, including reduced complications.