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The extended use of modular knee endoprostheses
H B Orban1, N Gheorghiu, V Cristescu
1Department of Orthopaedics and Traumatology, Elias University Emergency Hospital, Bucharest, Romania. horiabogdan@live.com
Chirurgia (Bucharest, Romania : 1990)
|August 24, 2010
Summary
Modular knee prostheses offer a bone-graft-free solution for complex knee reconstructions. These implants show encouraging survival and functional outcomes in tumor resection and revision arthroplasty cases.
Area of Science:
- Orthopedic Surgery
- Biomedical Engineering
- Oncology
Background:
- Modular knee prostheses were developed to address large bony defects without bone grafting.
- Initial applications focused on knee tumor resections.
- Expanded use includes failed total knee arthroplasties with significant bone loss and instability.
Observation:
- Seven modular knee prostheses were implanted between July 2006 and January 2009.
- Indications included 4 tumor cases, 1 desarthrodhesis (Campanacci procedure), and 2 failed total knee arthroplasties.
- Patients were monitored for survival and functional outcomes.
Findings:
- All but one patient survived at the two-year follow-up.
- Implants demonstrated normal function in range of motion, muscle strength, and gait.
- Modular prostheses provided a viable limb-sparing option in complex cases.
Implications:
- Advances in bone sarcoma management enhance survival, increasing the need for limb-sparing surgeries.
- Modular knee prostheses are effective in reconstructing large defects and managing failed arthroplasties.
- These implants facilitate joint-mobility sparing surgery, improving patient quality of life.
