The purpose of this study was to evaluate 115 "Conus" uncemented stems at an average follow-up of 6 years (2-9 years). Seventeen patients were lost at follow-up for a final number of 98 stems in 75 patients. The clinical outcome of 71 hips (72\%) was graded excellent, 25 (25\%) were good, one (2\%) fair and one (2\%) poor. The average Harris Hip Score increased from 49.35 before operation to 96.30 at the time of the last follow-up. None of the stems implanted required a revision for aseptic or septic loosening. Cortical hypertrophy or radiolucencies were never seen in any of the stems evaluated. Heterotopic ossification was seen in one hip (1\%). Modification of the calcar was observed in 29 hips (30\%) and they consisted in a slight rounding off of the proximal medial edge of the cut femoral neck. These results encourage the use of this versatile stem which showed a good primary and secondary stability, with a good load distribution along the femur.

"Conus" uncemented stem in developmental hip dysplasia.

MURENA, LUIGI;
2007

Abstract

The purpose of this study was to evaluate 115 "Conus" uncemented stems at an average follow-up of 6 years (2-9 years). Seventeen patients were lost at follow-up for a final number of 98 stems in 75 patients. The clinical outcome of 71 hips (72\%) was graded excellent, 25 (25\%) were good, one (2\%) fair and one (2\%) poor. The average Harris Hip Score increased from 49.35 before operation to 96.30 at the time of the last follow-up. None of the stems implanted required a revision for aseptic or septic loosening. Cortical hypertrophy or radiolucencies were never seen in any of the stems evaluated. Heterotopic ossification was seen in one hip (1\%). Modification of the calcar was observed in 29 hips (30\%) and they consisted in a slight rounding off of the proximal medial edge of the cut femoral neck. These results encourage the use of this versatile stem which showed a good primary and secondary stability, with a good load distribution along the femur.
http://www.hip-int.com/article/-conus--uncemented-stem-in-developmental-hip-dysplasia-art003935
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11368/2833098
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