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Improvement of the soft socket after rotationplasty: a single case study
Martin Wessling1, Mirko Aach, Jendrik Hardes
1Department of Orthopaedics, University Hospital, University of Muenster, Muenster, Germany. wessling@uni-muenster.de
Prosthetics and Orthotics International
|February 24, 2009
Summary
This study improved outcomes for a patient with rotationplasty by modifying the heel bench to reduce foot pressure. This enhancement allowed for increased weight-bearing capacity and improved skin tolerance during activities.
Area of Science:
- Orthopedic surgery
- Biomechanics
- Prosthetics
Background:
- Rotationplasty is a surgical technique for limb salvage, but functional outcomes can be limited by foot pressure and skin issues.
- The biomechanical demands on the rotated foot in rotationplasty can lead to painful callosities and blisters, impacting prosthesis use.
- A patient with rotationplasty type A2 experienced significant discomfort due to these foot issues.
Observation:
- Capacitive pressure measurements and gait analysis were used to assess the biomechanics of the rotated foot.
- The patient presented with painful callosities on the rotated foot, limiting activity.
- A modification to the heel bench was implemented to address pressure distribution.
Findings:
- Post-modification, peak pressure decreased from 240.6 to 135.0 kPa, and mean pressure reduced from 83.2 to 66.2 kPa.
- The weight-bearing area of the foot increased, indicating improved pressure distribution.
- Clinically, the patient experienced reduced callosities and pain relief, enabling new activities like skiing.
Implications:
- Modifying the heel bench in rotationplasty can significantly improve pressure distribution on the foot.
- Increased load-bearing area enhances skin's ability to withstand stress during physical activities.
- This approach offers potential for improved functional outcomes and quality of life for rotationplasty patients.
