The offset V modification of the Chevron bunionectomy: a retrospective study

Area of Science:

• Orthopedic Surgery
• Foot and Ankle Surgery
• Surgical Fixation Techniques

Background:

• Hallux abducto valgus (HAV) deformity, commonly known as a bunion, affects numerous individuals.
• The Chevron (Austin) bunionectomy is a surgical procedure used to correct HAV.
• The offset-V modification of the Chevron bunionectomy involves specific bone cuts and fixation strategies.

Purpose of the Study:

• To compare screw fixation versus Kirschner wire fixation for the offset-V modification of the Chevron bunionectomy.
• To evaluate radiographic outcomes and clinical complications associated with each fixation method in HAV correction.

Main Methods:

• Retrospective study analyzing radiographic measurements (hallux abductus angle, intermetatarsal angle, etc.) pre- and post-operatively.
• Review of patient charts to identify and compare complications specific to screw versus Kirschner wire fixation.
• Evaluation of two fixation methods: screw fixation and Kirschner wire fixation.

Main Results:

• No significant radiographic differences were observed between screw and Kirschner wire fixation in terms of measured angles and lengths.
• Radiographic parameters evaluated included hallux abductus angle, intermetatarsal angle, proximal articular set angle, tibial sesamoid position, and first metatarsal length.
• Chart review indicated potential advantages for screw fixation regarding clinical outcomes and patient satisfaction.

Conclusions:

• While radiographic results were comparable, screw fixation appears to offer superior clinical results and patient satisfaction.
• The choice of fixation may influence patient outcomes beyond purely radiographic correction in offset-V Chevron bunionectomy.
• Further investigation into patient-reported outcomes and long-term clinical benefits of screw fixation is warranted.