Kidner procedure for symptomatic accessory navicular and its relation to pes planus

Area of Science:

• Orthopedic surgery
• Foot and ankle reconstruction
• Biomechanical analysis

Background:

• Symptomatic accessory navicular is often associated with pes planus.
• The Kidner procedure involves accessory navicular excision and tibialis posterior tendon relocation.
• Pes planus can be indicated by a reduced calcaneal pitch angle.

Purpose of the Study:

• To evaluate the effectiveness of the Kidner procedure in treating symptomatic accessory navicular.
• To assess the relationship between symptomatic accessory navicular and pes planus.
• To determine if the Kidner procedure impacts the medial longitudinal arch.

Main Methods:

• A study of 28 patients with symptomatic accessory navicular undergoing the Kidner procedure.
• Radiographic measurement of calcaneal pitch angle to assess pes planus.
• Follow-up averaging 3.2 years to evaluate clinical outcomes.

Main Results:

• The Kidner procedure yielded good or fair results in all patients, with significant pain and fatigue improvement.
• A significant association was found between symptomatic accessory navicular and pes planus (lower calcaneal pitch angle in patients).
• The procedure did not significantly restore the height of the medial longitudinal arch in most patients.

Conclusions:

• The Kidner procedure is effective for pain and fatigue relief in symptomatic accessory navicular.
• Symptomatic accessory navicular is linked to pes planus.
• Medial arch restoration is not a primary outcome of the Kidner procedure.