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dc.contributor.authorBaliga Sen_US
dc.contributor.authorMcNair CJen_US
dc.contributor.authorBarnett KJen_US
dc.contributor.authorMacLeod Jen_US
dc.contributor.authorHumphry RWen_US
dc.contributor.authorFinlayson Den_US
dc.date.accessioned2013-09-11T15:09:38Z
dc.date.available2013-09-11T15:09:38Z
dc.date.issued2012en_US
dc.identifier.citation94en_US
dc.identifier.other13268en_US
dc.identifier.urihttp://hdl.handle.net/11262/8238
dc.identifier.urihttp://dx.doi.org/doi:10.1302/0301-620X.94B9.27662en_US
dc.description.abstractThe incidence of anterior knee pain following total knee replacement (TKR) is reported to be as high as 49%. The source of the pain is poorly understood but the soft tissues around the patella have been implicated. In theory circumferential electrocautery denervates the patella thereby reducing efferent pain signals. However, there is mixed evidence that this practice translates into improved outcomes. We aimed to investigate the clinical effect of intra-operative circumpatellar electrocautery in patients undergoing TKR using the LCS mobile bearing or Kinemax fixed bearing TKR. A total of 200 patients were randomised to receive either circumpatellar electrocautery (diathermy) or not (control). Patients were assessed by visual analogue scale (VAS) for anterior knee pain and Oxford knee score (OKS) pre-operatively and three months, six months and one year post-operatively. Patients and assessors were blinded. There were 91 patients in the diathermy group and 94 in the control. The mean VAS improvement at one year was 3.9 in both groups (control; -10 to 6, diathermy; -9 to 8, p < 0.001 in both cases, paired, two-tailed t-test). There was no significant difference in VAS between the groups at any other time. The mean OKS improvement was 17.7 points (0 to 34) in the intervention group and 16.6 (0 to 42) points in the control (p = 0.36). There was no significant difference between the two groups in OKS at any other time. We found no relevant effect of patellar electrocautery on either VAS anterior knee pain or OKS for patients undergoing LCS and Kinemax TKR.
dc.relation.isformatof13268.pdfen_US
dc.relation.ispartofThe Journal of Bone and Joint Surgeryen_US
dc.subjectKnee replacementen
dc.subjectElectrocauteryen
dc.titleDoes circumpatellar electrocautery improve the outcome after total knee replacement?en_US
dc.extent.pageNumbers1228en_US
dc.extent.pageNumbers1233en_US


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