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Compression arthrodesis of the ankle by triangular external fixation: an improved technique.
A T Berman1, S J Bosacco, D R Yanicko
1Department of Orthopedic Surgery and Rehabilitation, Hahnemann University Hospital, Philadelphia, Pa. 19102.
Orthopedics
|October 1, 1989
Summary
A novel external fixation system provides rigid immobilization for ankle fusion. This triangular frame achieved a nearly 90% union rate in 14 patients, including complex cases.
Area of Science:
- Orthopedic surgery
- Biomedical engineering
Background:
- Ankle arthrodesis is a surgical procedure to fuse the ankle joint.
- Achieving solid fusion requires rigid immobilization and compression.
- Existing methods may have limitations in providing adequate stability.
Purpose of the Study:
- To introduce and evaluate a new external tubular fixation system for ankle fusion.
- To describe the design and application of a triangular ankle fusion frame.
- To assess the early efficacy of this system in achieving tibiotalar arthrodesis.
Main Methods:
- Design of a triangular ankle fusion frame with a metatarsal pin for midfoot control.
- Application of the external fixation system in 14 patients undergoing ankle arthrodesis.
- Surgical technique description including frame construction and implantation.
Main Results:
- Solid tibiotalar arthrodesis was achieved in 12 out of 14 patients.
- An overall union rate of nearly 90% was observed.
- Successful fusion was noted even in reoperative cases with prior failed fusions.
Conclusions:
- The novel triangular external fixation system offers a viable option for ankle fusion.
- This method provides rigid immobilization and has demonstrated a high union rate.
- Further studies are warranted to confirm long-term outcomes.