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Knee skin temperature following uncomplicated total knee replacement
S G Haidar1, R M Charity, R S Bassi
1Department of Trauma and Orthopaedics, City Hospital, Dudley Road, Birmingham B18 7QH, UK. thehaidars@aol.com
Abstract:
This prospective study aimed to establish the pattern of knee skin temperature following uncomplicated primary total knee replacement. Thirty-two patients were included. The skin temperature of operated and contralateral knees was measured preoperatively and daily during the first 6 weeks postoperatively. Measurements were also taken at 3, 6, 12 and 24 months following surgery. The difference in temperature between the two knees had a mean value of (+)2.9 degrees C at 7 days. This mean value decreased to (+)1.6 degrees C at 6 weeks, (+)1.3 degrees C at 3 months, (+)0.9 degrees C at 6 months (+)0.3 degrees C at 12 months and (+)0.0 degrees C at 24 months. Following uncomplicated total knee replacement, the operated knee skin temperature increases compared to the contralateral knee. The difference decreases gradually but remains statistically significant up to at least 6 months following surgery. In the absence of other features of infection, local knee warmth should not cause concern.
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