Restoring Sesamoid Position in Scarf Osteotomy: A Learning Curve

Area of Science:

• Orthopedic surgery
• Foot and ankle surgery
• Biomechanical analysis

Background:

• Incomplete sesamoid reduction after scarf osteotomy increases hallux valgus recurrence risk.
• Achieving optimal sesamoid positioning is crucial for successful hallux valgus correction.

Purpose of the Study:

• To investigate the presence of a learning curve in achieving proper sesamoid bone positioning during scarf osteotomy.
• To assess the impact of surgical experience on sesamoid reduction and patient outcomes.

Main Methods:

• Retrospective review of 71 consecutive scarf osteotomies performed by a single surgeon.
• Patients divided into three groups based on surgical order (24, 24, 23 cases).
• Comparison of median sesamoid position (Hardy and Clapham classification) at 6 weeks and patient satisfaction at 6 months post-surgery.

Main Results:

• Preoperative median sesamoid position of 7 improved to a postoperative median of 2.
• Significantly better sesamoid positioning was observed in the second and third surgical groups compared to the first (p < .05).
• 92% of patients reported satisfaction with the surgical outcome.

Conclusions:

• A learning curve is evident for mastering sesamoid bone positioning in scarf osteotomy.
• Improved surgical technique, demonstrated through experience, leads to better sesamoid reduction.
• Optimal sesamoid positioning is directly linked to reduced hallux valgus recurrence and enhanced patient satisfaction.