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The spherocentric knee prosthesis (long term results in 18 cases)
Italian Journal of Orthopaedics and Traumatology
|March 1, 1982
Summary
Spherocentric knee prostheses showed satisfactory clinical and radiographic outcomes in patients with rheumatoid arthritis and knee arthrosis. This implant is a viable option for severe knee deformities and instability.
Area of Science:
- Orthopedic Surgery
- Biomedical Engineering
Background:
- Rheumatoid arthritis and knee arthrosis can lead to severe deformities and instability.
- Traditional prostheses may have limitations in managing extreme cases.
Purpose of the Study:
- To evaluate the clinical and radiographic outcomes of spherocentric knee prostheses.
- To assess the efficacy of this implant in complex knee conditions.
Main Methods:
- Prospective study involving 18 patients (14 rheumatoid arthritis, 4 arthrosis).
- Insertion of spherocentric knee prostheses.
- Follow-up from six months to two years for clinical and radiographic assessment.
Main Results:
- Satisfactory clinical and radiographic results were reported.
- No complications were observed during the follow-up period.
- The prosthesis demonstrated effectiveness in managing severe deformities and instability.
Conclusions:
- Spherocentric knee prostheses are a safe and effective treatment option.
- This implant is indicated for severe varus/valgus deformities (>30 degrees) and extreme instability.
- It serves as a valuable alternative for cases with prior prosthesis failure.