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MINERVA ORTOPEDICA E TRAUMATOLOGICA
A Journal on Orthopedics and Traumatology
PAPERS ON HIP
Minerva Ortopedica e Traumatologica 2006 August;57(4):377-9
The CLS stem: what are its real limitations?
Dettoni A., D’ Aleo P., Visca G., Dettoni F.
Divisione di Ortopedia-Traumatologia ASL 18 Alba-Bra, Cuneo
Aim. The CLS stem has been used in the Ortho-pedics and Traumatology Department of our hospital since 1992. To confirm the stem’s reputation for reliability, borderline cases or those outside indication were closely monitored.
Methods. Between 1992 and 2003, 935 stems and acetabular components inserted without cement (Harris-Galante 251, Duralock 205, Fitmore 479) were reviewed.
Results. A review of the case series showed that about 20% of the implanted stems were outside the standard indication by 5 points in 93 cases (10%), 6-7 points in 47 (5%), >7 points in 45 (5%).
Conclusions. CLS stem survival was good, even in narrow indications without specific differences compared with the author’s standard indications. The stem’s solid reliability is most likely linked to its wedge-shaped three-dimensional geometry, which permits good anchorage even in very difficult indications.