| Does circumpatellar electrocautery improve the outcome after total knee replacement?: A prospective, randomised, blinded controlled trial. | |
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MedLine Citation:
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PMID: 22933495 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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The 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. |
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Authors:
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S Baliga; C J McNair; K J Barnett; J Macleod; R W Humphry; D Finlayson |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: The Journal of bone and joint surgery. British volume Volume: 94 ISSN: 0301-620X ISO Abbreviation: J Bone Joint Surg Br Publication Date: 2012 Sep |
Date Detail:
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Created Date: 2012-08-30 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0375355 Medline TA: J Bone Joint Surg Br Country: England |
Other Details:
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Languages: eng Pagination: 1228-33 Citation Subset: AIM; IM |
Affiliation:
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Raigmore Hospital, Department of Orthopaedics, Inverness IV2 3UJ, UK. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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