naa a22 4500 510741576 CHVBK 20180411083030.0 cr unu---uuuuu 180411e20130601xx s 000 0 eng 10.1007/s11845-012-0857-y doi (NATIONALLICENCE)springer-10.1007/s11845-012-0857-y Neck narrowing in resurfacing hip arthroplasty: a vascular insult? [Elektronische Daten] [S. Brennan, F. Khan, J. McQuillan, C. O'Neill, P. Kenny, S. O'Rourke, J. O'Byrne] Introduction: Recent reports show increased failure rates in hip resurfacings that display >10% neck narrowing. The etiology of neck narrowing remains unknown. Methods: We assessed 80 hip resurfacings at mean 3.5years follow-up. Results: The overall rate of significant narrowing was 11.25%. Neck narrowing occurred in 4% of patients using an anterolateral approach and 23.3% using a posterior approach (P=0.019). Logistic regression showed that both surgical approach and cup inclination angle were the most important risk factors for the development of narrowing. The odds of the presence of narrowing increased for every degree increase in cup abduction angle (P= 0.021). There was no significant association with age, sex, pre-operative diagnosis, pre- and post-operative SF-36 scores, neck shaft angle, femoral or acetabular component sizes. Conclusion: We postulate that neck narrowing is a result of damage to the medial circumflex femoral vessel when resurfacing through a posterior approach. Royal Academy of Medicine in Ireland, 2012 Neck narrowing nationallicence Hip resurfacing nationallicence Blood supply nationallicence Surgical approach nationallicence Brennan S. Cappagh National Orthopaedic Hospital, Finglas, Dublin 11, Ireland aut Khan F. Cappagh National Orthopaedic Hospital, Finglas, Dublin 11, Ireland aut McQuillan J. School of Mathematical Sciences, University College Dublin, Dublin, Ireland aut O'Neill C. Cappagh National Orthopaedic Hospital, Finglas, Dublin 11, Ireland aut Kenny P. Cappagh National Orthopaedic Hospital, Finglas, Dublin 11, Ireland aut O'Rourke S. Cappagh National Orthopaedic Hospital, Finglas, Dublin 11, Ireland aut O'Byrne J. Cappagh National Orthopaedic Hospital, Finglas, Dublin 11, Ireland aut Irish Journal of Medical Science Springer-Verlag 182/2(2013-06-01), 201-205 0021-1265 182:2<201 2013 182 11845 https://doi.org/10.1007/s11845-012-0857-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11845-012-0857-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Brennan S. Cappagh National Orthopaedic Hospital, Finglas, Dublin 11, Ireland aut NATIONALLICENCE 700 1- Khan F. Cappagh National Orthopaedic Hospital, Finglas, Dublin 11, Ireland aut NATIONALLICENCE 700 1- McQuillan J. School of Mathematical Sciences, University College Dublin, Dublin, Ireland aut NATIONALLICENCE 700 1- O'Neill C. Cappagh National Orthopaedic Hospital, Finglas, Dublin 11, Ireland aut NATIONALLICENCE 700 1- Kenny P. Cappagh National Orthopaedic Hospital, Finglas, Dublin 11, Ireland aut NATIONALLICENCE 700 1- O'Rourke S. Cappagh National Orthopaedic Hospital, Finglas, Dublin 11, Ireland aut NATIONALLICENCE 700 1- O'Byrne J. Cappagh National Orthopaedic Hospital, Finglas, Dublin 11, Ireland aut NATIONALLICENCE 773 0- Irish Journal of Medical Science Springer-Verlag 182/2(2013-06-01), 201-205 0021-1265 182:2<201 2013 182 11845 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer