We reviewed one hundred and twenty patients who had primary total hip replacement using Corail/Pinnacle Metal on metal bearing surfaces between 2006 and 2009. We were interested in the metal ion levels of the whole cohort, the incidence of unexplained pain, pseudo tumour lesions (ALVAL) and early loosening and failure. We were particularly interested in the relationship of the acetabular cup position in relation to the pelvis and lumbar spine. We reviewed 120 charts and 104 patients in total. All patients had metal ion assays (cobalt and chromium) All patients had standardised radiographic evaluation using a special technique to assess acetabular cup position and the relationship to the pelvis and lumbar spine.Purpose of the study
Material and methods
