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[Distal radio-ulnar prosthesis]
1Clinique de l'Yvette, Longjumeau.
Annales De Chirurgie De La Main Et Du Membre Superieur : Organe Officiel Des Societes De Chirurgie De La Main = Annals of Hand and Upper Limb Surgery
|January 1, 1992
Summary
A novel Distal Radio-Ulnar Joint (DRUJ) prosthesis offers mechanical stabilization for painful ulnar stump instability. This cementless prosthesis shows promise for faster rehabilitation in complex DRUJ cases.
Area of Science:
- Orthopedic Surgery
- Biomedical Engineering
- Traumatology
Background:
- Traumatic painful instabilities of the Distal Radio-Ulnar Joint (DRUJ) are treated with various procedures.
- Complications like ulnar stump instability can occur with certain techniques.
Observation:
- The study introduces a novel mechanical solution for stabilizing the ulnar stump.
- Two types of cementless DRUJ prostheses were developed and used in two cases.
Findings:
- The developed DRUJ prostheses demonstrated favorable outcomes in initial cases.
- These prostheses feature cementless fixation with screws and nuts for immediate stability and rapid rehabilitation.
- Composite articular components (metal on H.D. Polyethylene) with a spherical surface allow for full joint mobility.
Implications:
- This prosthesis presents a new option for managing painful ulnar stump instability, particularly after procedures like Kapandji-Sauvé and Moore-Darrach.
- Further clinical experience and research are needed to establish its long-term efficacy and potential for primary use.
- The design's principles of immediate stability and fast rehabilitation could significantly impact DRUJ treatment protocols.