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Medial capsular interpositional arthroplasty for severe hallux rigidus
Foot & Ankle International
|June 3, 2009
Summary
This study shows that using the medial capsule for interpositional arthroplasty in severe hallux rigidus improves patient outcomes and joint function. The technique offers comparable results to other surgical options for end-stage MTPJ arthritis.
Area of Science:
- Orthopedic Surgery
- Foot and Ankle Surgery
- Reconstructive Surgery
Background:
- Severe hallux rigidus often requires surgical intervention.
- Capsular interpositional arthroplasty is a viable surgical option.
- This study explores a novel technique using the medial capsule for interposition.
Purpose of the Study:
- To evaluate the initial outcomes of medial capsular interpositional arthroplasty for severe hallux rigidus.
- To compare the efficacy of this technique with existing treatments.
Main Methods:
- Twenty-two patients with grade IV hallux rigidus were included.
- A modified Keller procedure with minimal proximal phalanx resection was performed.
- Medial capsular interpositional arthroplasty was utilized, preserving the flexor hallucis brevis (FHB) insertion.
Main Results:
- Postoperative AOFAS hallux MTP-IP scores averaged 77.8, indicating clinical improvement.
- SF-36 scores showed significant gains in physical function and role limitations.
- Joint alignment, stability, and range of motion (dorsiflexion/plantarflexion) were well-maintained and improved.
Conclusions:
- Medial capsular interpositional arthroplasty provides favorable outcomes for severe hallux rigidus.
- Results are comparable to other arthroplasty and arthrodesis procedures for end-stage MTPJ arthritis.
