Abstract :
Background: Management of idiopathic osteonecrosis of the femoral head with arthritis in the young age group is controversial. Total hip replacement is considered the gold standard for management of arthritic hip. However, the longevity of the prosthesis and the number of future revisions are still the main source of concern about total hip replacement in this age group. The use of ceramic on ceramic bearing couples improved the longevity of the prosthesis.
Patients and methods: In the period from June 2010 – to December 2012, 18 patients (22 hips) with idiopathic osteonecrosis of the femoral head were treated by cement less ceramic on ceramic total hip replacement. This study was done at Zagazig university hospitals. The mean age was 29.5 years old. There were 14 males and 4 females. The mean follow up period was 48.4 months. All cases had idiopathic osteonecrosis of the femoral head stage III and IV according to Ficat classification. The functional results were evaluated according to Harris hip score. The radiological results of the femoral and acetabular components following surgery were evaluated according to the criteria of Lins et al and Engh et al., respectively.
Results: The mean Harris hip score improved from 39.36 (range 30-56) preoperatively to 89.59 (range 68-96) in the final controls (p
Keyword :
Idiopathic osteonecrosis of the femoral head, Cementless total hip replacement, ceramic on ceramic total hip replacement