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Roger Mann Award 1995. Capsular interposition arthroplasty for severe hallux rigidus
W G Hamilton1, M J O'Malley, F M Thompson
1Columbia University College of Physicians and Surgeons, New York, New York, USA.
Foot & Ankle International
|February 1, 1997
Summary
This study shows capsular interposition arthroplasty effectively treats severe hallux rigidus. The modified procedure improved pain and function without sacrificing motion or strength.
Area of Science:
- Orthopedic Surgery
- Foot and Ankle Surgery
Background:
- Severe hallux rigidus significantly impacts foot function and quality of life.
- Traditional surgical options may lead to complications like stiffness or transfer metatarsalgia.
Purpose of the Study:
- To evaluate the efficacy of a modified capsular interposition arthroplasty for severe hallux rigidus.
- To assess pain relief, functional improvement, and preservation of motion and strength.
Main Methods:
- Thirty patients (37 feet) with severe hallux rigidus underwent a modified resection arthroplasty.
- The technique involved reattaching the extensor hood and extensor brevis to the flexor hallucis brevis as a capsular interposition, with minimal bone resection.
Main Results:
- Significant improvements in pain and function were reported post-surgery.
- No cases of transfer metatarsalgia were observed.
- Patients maintained at least 4/5 plantarflexion strength and averaged 50 degrees of dorsiflexion.
Conclusions:
- Modified capsular interposition arthroplasty is a viable surgical option for severe hallux rigidus.
- This technique effectively relieves pain while preserving joint motion and strength.
- It is particularly suitable for patients with nearly equal first and second metatarsal lengths.

