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Soft-tissue distraction with a ring external fixator before centralization for radial longitudinal deficiency.
Charles A Goldfarb1, Yvonne M Murtha, J Eric Gordon
1Department of Orthopaedic Surgery, Washington University School of Medicine, St. Louis, MO 63110, USA. goldfarbc@wustl.edu
The Journal of Hand Surgery
|July 18, 2006
Summary
Precentralization soft-tissue distraction using a ring fixator effectively improved outcomes for radial longitudinal deficiency (RLD). This technique facilitated tensionless centralization, leading to significant improvements in limb alignment and function.
Area of Science:
- Orthopedic surgery
- Pediatric orthopedics
- Limb reconstruction
Background:
- Radial Longitudinal Deficiency (RLD) is a congenital condition affecting forearm development.
- Severe RLD often requires complex surgical intervention, including centralization.
- Preoperative soft-tissue management is crucial for successful centralization.
Purpose of the Study:
- To evaluate the efficacy of soft-tissue distraction using a ring fixator prior to centralization in severe RLD.
- To assess the techniques and outcomes of this combined approach.
Main Methods:
- A prospective study involving 6 patients (8 extremities) with severe RLD.
- Treatment included ring fixator distraction followed by centralization.
- Clinical and radiographic assessments were performed at an average follow-up of 17 months.
Main Results:
- Ring fixator distraction achieved an average of 16 mm of lengthening.
- Centralization was performed effectively and without tension.
- Significant improvements were noted in limb alignment (hand-forearm angle from 72° radial to 8° ulnar) and carpal subluxation (average 6 mm).
Conclusions:
- Precentralization ring fixator distraction enables tensionless centralization in severe RLD.
- This approach yields favorable early radiographic and clinical outcomes.
- It is a valuable technique for managing complex cases of RLD.