title: Intra-articular bupivacaine hip injection in differentiation of coxarthrosis from referred thigh pain: a 10 year study.
abstract: The authors conducted a retrospective study to validate the specificity of intra-articular injection of local anaesthetic to identify the source of pain in patients with coxarthrosis but ill-defined clinical and radiological features. Forty-seven patients received intra-articular injection of the hip joint as a diagnostic procedure. Twenty-four patients showed a positive response with relief of pain. All of them underwent total hip replacement and remained pain free following surgery. In twenty-three patients intra-articular injection did not relieve the pain; three of these underwent successful total hip replacement two years later. Other negative responders were further evaluated and appropriately managed. This study confirms that intra-articular injection of local anaesthetic is a valuable tool in diagnostic dilemma. The calculated sensitivity of 88% and specificity of 100% is similar to other published series.
authors.affiliation: General Hospital, Steeton, Keighley BD20 6TD, U.K.
authors.forename: Adnan A
authors.initials: AA
authors.lastname: Faraj
authors.forename: Ponnuswamy
authors.initials: P
authors.lastname: Kumaraguru
authors.forename: Kornad
authors.initials: K
authors.lastname: Kosygan
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000779:Anesthetics, Local / Q000008:administration & dosage*; D019644:Arthroplasty, Replacement, Hip; D002045:Bupivacaine / Q000008:administration & dosage*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007270:Injections, Intra-Articular; D008297:Male; D008875:Middle Aged; D015207:Osteoarthritis, Hip / Q000175:diagnosis*; D010146:Pain / Q000209:etiology*; D012189:Retrospective Studies; D012680:Sensitivity and Specificity; D013848:Thigh
chemical_list: D000779:Anesthetics, Local; D002045:Bupivacaine