Advertisement for orthosearch.org.uk
Results 1 - 2 of 2
Results per page:
Applied filters
The Bone & Joint Journal

Include Proceedings
Dates
Year From

Year To
The Journal of Bone & Joint Surgery British Volume
Vol. 79-B, Issue 2 | Pages 331 - 336
1 Mar 1997
Kusaba A Kuroki Y

We retrieved 159 femoral heads at revision surgery to determine changes in surface configuration. Macroscopic wear of the head was observed in three bipolar hip prostheses as a result of three-body wear. There was a considerable change in surface roughness in the internal articulation of bipolar hip prostheses. Roughness in alumina heads was almost the same as that in new cobalt-chromium heads. The annual linear wear rate of polyethylene cups with alumina heads was less than that of cups with cobalt-chromium alloy heads. Polyethylene wear was increased in the prostheses which had increased roughness of the head.


The Journal of Bone & Joint Surgery British Volume
Vol. 75-B, Issue 2 | Pages 217 - 221
1 Mar 1993
Takatori Y Kokubo T Ninomiya S Nakamura S Morimoto S Kusaba I

We studied the prognostic value of MRI in 32 radiographically normal, asymptomatic hips in 25 patients at risk of osteonecrosis from glucocorticoids or alcoholism. The early findings were band-like hypointense zones on spin-echo images. No operations were performed. Life-table survival curves showed that femoral heads in which the hypointense zone traversed the middle portion of the head were most at risk of subsequent segmental collapse.