Two modifications of the Weil osteotomy: analysis on sawbone models.
Second metatarsal osteotomies (30 degrees angle to shaft) were performed in 40 sawbones with: 1. head shifted proximally 5 mm; 2. head shifted proximally 10 mm; 3. 5-mm slice resected and head shifted proximally 5 mm; or 4. 5-mm dorsally based wedge resected and head shifted proximally 5 mm. Bone slice resection resulted in shortening (16.4+/-1.7 mm) and mild plantar displacement of the head (3.5+/-0.8 mm). Bone wedge excision resulted in moderate shortening (7.8+/-0.9 mm) and essentially no plantar displacement of the head (0.8+/-1.4 mm).
Melamed
Eyal A
EA
Department of Orthopaedic Surgery, The Union Memorial Hospital, Baltimore, MD, USA.
Schon
Lew C
LC
Myerson
Mark S
MS
Parks
Brent G
BG
D006801:Humans; D008682:Metatarsal Bones / Q000601:surgery*; D008953:Models, Anatomic; D010027:Osteotomy / Q000379:methods*