Minimally Invasive Chevron Surgery and Bosch Percutaneous Osteotomy in Hallux Valgus Treatment. Midterm Results....

Area of Science:

• Orthopedic surgery
• Foot and ankle reconstruction
• Minimally invasive surgical techniques

Background:

• Hallux valgus is a common foot deformity requiring surgical correction.
• Minimally invasive techniques aim to reduce morbidity and improve outcomes.
• Comparing different minimally invasive approaches is crucial for optimal patient care.

Purpose of the Study:

• To compare radiological outcomes of minimally invasive chevron surgery versus the Bosch technique for hallux valgus.
• To evaluate angular correction and its maintenance in the medium term.
• To assess surgical time and postoperative complications for both techniques.

Main Methods:

• Prospective comparative analysis of 125 patients with symptomatic hallux valgus.
• Two homogeneous groups: 62 feet (minimally invasive chevron) and 63 feet (Bosch technique).
• Evaluation of first ray angular corrections, consolidation, correction power, maintenance over time, complications, and surgical time with a minimum 2-year follow-up.

Main Results:

• Significant differences observed in the intermetatarsal angle at 24 months post-surgery between the groups.
• No significant differences in metatarsophalangeal angle or distal metatarsal articular angle.
• Bosch technique demonstrated greater correction power for the intermetatarsal angle and shorter surgical time.

Conclusions:

• Both screw-stabilized Bosch surgery and minimally invasive chevron surgery provide adequate correction for moderate hallux valgus.
• The Bosch technique offers superior medium-term correction of the intermetatarsal angle and reduced surgical time compared to the chevron technique.
• Both methods exhibit similar long-term correction maintenance and postoperative complication profiles.