28-166
Relación entre la orientación del cotilo y los cambios radiológicos evolutivos tras prótesis total de cadera tipo Charnley-Müller
RELATIONSHIP BETWEEN THE POSITION OF THE ACETABULAR COMPONENT AND RADIOLOGICAL CHANGES AFTER CHARNLEY-MÜLLER TOTAL HIP ARTROPLASTY
J. BENTO GERARD, M. CLAVEL SAINZ y A. GALIAN CANOVAS Servicio de Cirugía Ortopédica y Traumatología. C. S. «Virgen de la Arrixaca». Murcia.
Recepción:
13/01/2009
Aceptación:
13/01/2009
Publicación:
13/01/2009
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Resumen (ES)
Eighty-seven cemented total hip prothesis were retrospectively reviewed in orderto ascertain whether the position of the acetabular implant induces radiographic changes aroundthe cup during follow-up. Several radiographic parameters were evaluated: acetabular protrusiónof the cup, periacetabular local osteoporosis, cystic images, subchondral sclerosis, presenceof calcifications around the cup and vertical displacement of the cup. These findings were correlatedwith the inclination and anteversion angles of the cup. A statistically significant correlationwas found between the position of the cup the following parameters: degree of acetabularprotrusion, presence of cystic images, local osteoporosis and periacetabular subchondral sclerosis.The ideal position of the cemented cup results to be of 35-45° inclination angle and 15° anteversionangle.
Palabras clave (ES):
Artroplastia
Acetábulo
Cementada
Orientación
Cotilo
Prótesis
Total
Cadera
Charley
Müller
Resumen (EN)
Eighty-seven cemented total hip prothesis were retrospectively reviewed in orderto ascertain whether the position of the acetabular implant induces radiographic changes aroundthe cup during follow-up. Several radiographic parameters were evaluated: acetabular protrusiónof the cup, periacetabular local osteoporosis, cystic images, subchondral sclerosis, presenceof calcifications around the cup and vertical displacement of the cup. These findings were correlatedwith the inclination and anteversion angles of the cup. A statistically significant correlationwas found between the position of the cup the following parameters: degree of acetabularprotrusion, presence of cystic images, local osteoporosis and periacetabular subchondral sclerosis.The ideal position of the cemented cup results to be of 35-45° inclination angle and 15° anteversionangle.
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