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[External patello-tibial transfixation. I: Indications and technique]
L Gotzen1, B Ishaque, F Morgenthal
1Klinik für Unfallchirurgie, Philipps-Universität Marburg.
Der Unfallchirurg
|January 1, 1997
Summary
Patello-tibial transfixation with the MPT-fixator offers a novel external fixation method for knee extensor mechanism injuries. This technique securely protects repairs, enabling early mobilization and full weight-bearing during healing.
Area of Science:
- Orthopedic surgery
- Biomedical engineering
- Traumatology
Background:
- External fixation devices are crucial for stabilizing bone fractures and soft tissue injuries.
- Patellar tendon ruptures and extensor mechanism disruptions require robust fixation for effective healing.
- Existing methods may limit early functional rehabilitation.
Purpose of the Study:
- To introduce and describe the MPT-fixator for patello-tibial transfixation.
- To detail the biomechanical principles and application configurations of the MPT-fixator.
- To highlight the clinical indications and benefits of this new external fixation technique.
Main Methods:
- Description of the MPT-fixator, a novel external fixation device.
- Explanation of two application configurations (A and B) involving Steinmann pins and Schanz screws.
- Biomechanical principle of transferring quadriceps tension from patella to tibia for knee extension.
Main Results:
- The MPT-fixator provides secure protection against mechanical overloading during healing.
- It facilitates immediate functional after-treatment and early mobilization.
- Allows for early full weight-bearing post-repair or reconstruction.
Conclusions:
- Patello-tibial transfixation using the MPT-fixator is a viable new external fixation method.
- The technique is indicated for fresh extensor mechanism disruptions and neglected patellar tendon ruptures.
- It promotes optimal healing by enabling early functional rehabilitation and weight-bearing.