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Redisplacement after ankle osteosynthesis with absorbable implants
K Pelto-Vasenius1, E Hirvensalo, J Vasenius
1Department of Orthopaedics and Traumatology, Helsinki University Central Hospital, Finland.
Archives of Orthopaedic and Trauma Surgery
|April 1, 1998
Summary
Absorbable implants for ankle fractures offer secure fixation for most cases. However, they show unsatisfactory results in unstable and comminuted fractures, with higher redisplacement and implant failure rates.
Area of Science:
- Orthopedic surgery
- Biomaterials science
Background:
- Absorbable implants offer an alternative to traditional fixation methods in fracture treatment.
- Polyglycolide/polylactide copolymers and self-reinforced polymers are utilized for their biodegradable properties.
Purpose of the Study:
- To evaluate the efficacy and outcomes of absorbable implants in treating ankle fractures.
- To identify factors influencing the success or failure of these implants.
Main Methods:
- Retrospective analysis of 1202 ankle fracture cases treated with absorbable implants (polyglycolide/polylactide, self-reinforced polyglycolide/polylactide).
- Data collection on redisplacement, implant breakage/loosening, technical failures, and reoperations.
Main Results:
- Overall redisplacement rate was 2.5% (30/1202), significantly higher in severe fractures (8.2%) compared to simple fractures (0.9%).
- Implant breakage or loosening occurred in 17 cases, with technical failure cited in 13 instances.
- Reoperation was necessary for 25 patients.
Conclusions:
- Absorbable implants provide secure fixation for the majority of ankle fractures.
- Their use is associated with unsatisfactory outcomes in unstable and comminuted ankle fractures due to higher rates of redisplacement and implant-related complications.