Abstracts Posters SICOT-SOF meeting Gothenburg 2010 _2_

Poster
Topic: Arthroplasty - Hip
Abstract number: 26252
USE OF MAYO CONSERVATIVE HIP PROSTHESIS (ZIMMER) IN
OSTEOARTHRITIS OF DIFFERENT ETIOLOGY
Adam NIEWIADOMSKI, Tadeusz NIEDZWIEDZKI, Jaroslaw NITON, Lukasz
NIEDZWIEDZKI
Orthopaedics and Trauma Surgery Department, Jagiellonian University Collegium
Medicum, Krakow (POLAND)
Authors presented the results of the treatment of osteoarthritis of the hip with MAYO
conservative hip prosthesis. Cementless MAYO endoprosthesis had been used 75
times beetwen 1999-2009. The age of patients was 17-60 years (average 38,2).
There were 44 women and 25 men. Main causes of osteoarthritis were secondary
changes to DDH, posttraumatic deformities and avascular necrosis of the femoral
head. MAYO stems were connected with cementless acetabular cup (Press-fit
Trilogy-65,3%) and threaded acetabular cup (Alloclassic-4,0%). Use of metal-onmetal
articulation connected with MAYO stem (30,6%) has been used since 2007.
Results were analyzed according to clinical Hip Harris Score and radiological
assessment. After 10 years follow-up good and very good results were found in
treatment of osteoarthritis especially in young people. MAYO stem causes minor
damage of intertrochanteric region during procedure and has minimal effect on
medullar cavity. It preserves bone stock and enables to replace femoral component
with a cementless stem in case of revision surgery. Using metal-on-metal articulation
preserves hip joint from luxation and its connection with short-stem prosthesis
increases a range of mobility in a joint.
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