Midterm outcome of modified Kidner procedure

Area of Science:

• Orthopedic surgery
• Podiatric medicine
• Biomechanical analysis

Background:

• Modified Kidner procedure generally shows satisfactory short-term outcomes.
• Midterm evaluation is crucial for assessing long-term efficacy and structural changes.
• Medial longitudinal arch height is a key factor in evaluating foot function post-surgery.

Purpose of the Study:

• To evaluate midterm follow-up results of the modified Kidner procedure.
• To assess changes in medial longitudinal arch height after the procedure.
• To correlate clinical outcomes with radiological measurements.

Main Methods:

• Retrospective analysis of 41 patients (50 feet) who underwent modified Kidner procedure.
• Evaluation included American Orthopaedic Foot & Ankle Society (AOFAS) midfoot scores, Visual Analog Scale (VAS) pain scores, and patient satisfaction.
• Radiographic measurements included talo-first metatarsal (T-MT1), talo-calcaneal (TC), and calcaneal pitch (CP) angles.

Main Results:

• Significant improvement in AOFAS scores (40.8 to 88.4) and VAS scores (7.1 to 1.8) (p < 0.01).
• High patient satisfaction rate of 82.0% at midterm follow-up.
• No significant changes in T-MT1, TC, or CP angles; some arch height increase noted in younger patients.

Conclusions:

• The modified Kidner procedure provides effective symptomatic relief for accessory navicular.
• High patient satisfaction is achieved without compromising medial longitudinal arch height.
• The procedure demonstrates durable efficacy in midterm follow-up evaluations.