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Bunion correction using proximal Chevron osteotomy
G J Sammarco1, B J Brainard, V J Sammarco
1Department of Orthopaedics, University of Cincinnati Medical Center, Ohio.
Foot & Ankle
|January 1, 1993
Summary
This study shows that a specific surgical technique effectively corrects moderate to severe bunion deformities. Patients experienced significant improvements in pain, appearance, and function, with high satisfaction rates.
Area of Science:
- Orthopedic Surgery
- Podiatric Surgery
Background:
- Bunion deformity, including hallux valgus and metatarsus primus varus, significantly impacts foot function and aesthetics.
- Moderate to severe cases often require complex surgical intervention for effective correction.
Purpose of the Study:
- To evaluate the efficacy and outcomes of a combined surgical approach for moderate to severe bunion deformities.
- To assess improvements in radiographic angles, patient-reported outcomes, and complication rates.
Main Methods:
- A cohort of 43 patients (51 cases) with moderate to severe bunion deformity underwent bunionectomy, proximal Chevron metatarsal osteotomy, lateral capsulotomy, adductor tenotomy, and first and second metatarsal lashing.
- Preoperative and postoperative radiographic measurements (hallux valgus angle, intermetatarsal angle) and subjective foot score profiles were analyzed.
Main Results:
- Significant improvements were observed in the hallux valgus angle (average 19 degrees) and intermetatarsal angle (average 7.3 degrees).
- Sesamoid position was corrected, metatarsal length remained stable, and union occurred in an average of 9 weeks with no malunions.
- Subjective foot scores improved significantly (from 69/100 to 83/100), with 78% of patients achieving good to excellent results.
Conclusions:
- The combined surgical technique, including proximal Chevron osteotomy, offers a reliable and effective method for correcting moderate to severe bunion deformities.
- This approach demonstrates technical ease, low complication rates, and satisfactory functional and cosmetic outcomes, suitable for both primary and revision surgeries.