The aim of this study was to determine the effect
of a Galeazzi fracture on the strength of pronation and supination at
a mean of two years after surgical treatment. The strength of pronation
and supination was measured in varying rotational positions of the
forearm of ten male patients (mean age 38.9 years (21 to 64)) who
had undergone plate fixation for a Galeazzi fracture. The stability
of the distal radioulnar joint was assessed, and a clinical assessment using
the quick-Disabilities of the Arm Shoulder and Hand (quickDASH)
questionnaire and patient-related wrist examination (PRWE) scores
was undertaken. In addition, the strength of pronation and supination
was measured in a male control group of 42 healthy volunteers (mean
age 21.8 years (18 to 37)). The mean absolute loss of strength of supination in the injured
compared with the non-injured arm throughout all ranges of forearm
rotation was 16.1 kg ( Loss of strength of pronation (27.2%), and of supination (12.5%)
in particular, after a Galeazzi fracture is associated with worse
clinical scores, highlighting the importance of supination of the
forearm in function of the upper limb. Cite this article:
We studied the effect of the surface finish of the stem on the transfer of load in the proximal femur in a sheep model of cemented hip arthroplasty. Strain-gauge analysis and corresponding finite-element (FE) analysis were performed to assess the effect of friction and creep at the cement-stem interface. No difference was seen between the matt and polished stems. FE analysis showed that the effects of cement creep and friction at the stem-cement interface on femoral strain were small compared with the effect of inserting a cemented stem.
