Revision arthroplasty: a high price to pay.

patients tested were hypothyroid. The table shows the time of onset of the hypothyroidism; in five patients it developed during follow up, after six months to 10 years. There was no significant difference in mean age, erythrocyte sedimentation rate, haemoglobin concentration, or platelet count between the hypothyroid and euthyroid patients. As expected, there were proportionately more women than men (ratio 12:3) among those with hypothyroidism. Thyroid autoantibodies were present in seven of the 11 patients screened prospectively (five with giant cell arteritis and two with polymyalgia rheumatica).