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[Self-expanding cup CLS. 10 years results]
Francisco J Modrego1, Juan Molina
1Servicio de Traumatología y Cirugia Ortopédica, Hospital de Barbastro, Barbastro, Huesca, España. javmod@terra.es
Revista De La Facultad De Ciencias Medicas (Cordoba, Argentina)
|September 16, 2004
Summary
The CLS acetabular cup demonstrated excellent long-term clinical outcomes and stable bony fixation in hip replacement surgery. This cementless implant showed 96% good or excellent results with no signs of aseptic loosening after over a decade of follow-up.
Area of Science:
- Orthopedic surgery
- Biomaterials engineering
- Medical device technology
Context:
- The CLS acetabular cup is a cementless, hemispherical implant designed for hip arthroplasty.
- Initial stability is achieved through an expansion-shell mechanism.
- Long-term fixation relies on secondary bone ingrowth onto the titanium surface.
Purpose:
- To evaluate the long-term clinical and radiological outcomes of the CLS acetabular cup in hip replacement patients.
- To assess the implant's stability, fixation, and patient-reported results over an extended follow-up period.
Summary:
- A retrospective study analyzed 26 CLS acetabular cups with a mean follow-up of 134 months.
- Clinical results, assessed using the Merle d'Aubigne scale, showed 96% of patients achieved good or excellent outcomes.
- Radiological assessment revealed 100% stable bony fixation with no evidence of aseptic loosening in any patient.
Impact:
- The CLS acetabular cup demonstrates durable and reliable performance in hip arthroplasty.
- This study supports the use of cementless, self-expanding acetabular components for long-term joint replacement success.
- Findings indicate a low risk of aseptic loosening and high patient satisfaction with this implant design.