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Comparison of total hinged and total nonhinged implants for the lesser digits
The Journal of Foot Surgery
|May 1, 1985
Summary
This study compared hinged and nonhinged total digital implants. Nonhinged implants offered better toe purchase and stability, while hinged implants provided slightly improved joint movement, with preoperative contracture being a key complication factor.
Area of Science:
- Orthopedic surgery
- Biomedical engineering
- Podiatric medicine
Background:
- Total digital implants are utilized in reconstructive surgery.
- Evaluating implant effectiveness and preoperative criteria is crucial for patient outcomes.
Purpose of the Study:
- To present preliminary findings on the effectiveness of total digital implants.
- To compare hinged versus nonhinged implant designs.
- To establish preoperative criteria for implant selection.
Main Methods:
- Prospective study design.
- Evaluation of 40 hinged and 22 nonhinged total digital implants.
- Comparison of implant performance based on functional outcomes.
Main Results:
- Nonhinged implants demonstrated superior toe purchase and stability.
- Hinged implants showed marginally better joint range of motion.
- Preoperative dorsal contracture at the metatarsophalangeal joint was associated with consistent postoperative complications.
Conclusions:
- Implant choice (hinged vs. nonhinged) impacts functional outcomes.
- Nonhinged implants may be preferred for enhanced stability and purchase.
- Addressing preoperative metatarsophalangeal joint contracture is critical for minimizing complications.