title: Radiographic parameters associated with pain following total hip and surface arthroplasty.
abstract: Pain following total hip arthroplasty (THA) and surface arthroplasty (SRA) remains a significant source of patient dissatisfaction. Two hundred twenty-four SRA and 196 THA patients completed a pain drawing questionnaire and postoperative radiographic measurements of component positioning were performed. In the SRA cohort, 11 of 21 patients (52%) with acetabular uncoverage of ≥5 mm versus 43 of 147 (29%) with acetabular uncoverage of ≤4.9 mm reported groin pain (P=.03). In the THA cohort, an increased distal-third canal fill ratio and a lower canal calcar ratio trended towards a higher incidence of thigh pain (P=.10 and .06), while a decreased mid-third canal fill ratio was associated with increased severity of thigh pain (P=.04). This study identifies associations between radiographic findings and pain following THA and SRA.
authors.affiliation: Washington University School of Medicine/Barnes-Jewish Hospital, St. Louis, Missouri.
authors.forename: Denis
authors.initials: D
authors.lastname: Nam
authors.affiliation: Allegheny General Hospital, Pittsburgh, Pennsylvania.
authors.forename: Timothy J
authors.initials: TJ
authors.lastname: Sauber
authors.affiliation: Washington University School of Medicine/Barnes-Jewish Hospital, St. Louis, Missouri.
authors.forename: Toby
authors.initials: T
authors.lastname: Barrack
authors.affiliation: Washington University School of Medicine/Barnes-Jewish Hospital, St. Louis, Missouri.
authors.forename: Staci R
authors.initials: SR
authors.lastname: Johnson
authors.affiliation: Cleveland Clinic, Cleveland, Ohio.
authors.forename: Peter J
authors.initials: PJ
authors.lastname: Brooks
authors.affiliation: Washington University School of Medicine/Barnes-Jewish Hospital, St. Louis, Missouri.
authors.forename: Ryan M
authors.initials: RM
authors.lastname: Nunley
mesh_terms: D000077:Acetabulum / Q000000981:diagnostic imaging* / Q000601:surgery; D000328:Adult; D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects*; D005269:Femur / Q000000981:diagnostic imaging* / Q000601:surgery; D006621:Hip Joint / Q000000981:diagnostic imaging* / Q000601:surgery; D006622:Hip Prosthesis; D006801:Humans; D007592:Joint Diseases / Q000000981:diagnostic imaging* / Q000601:surgery; D010149:Postoperative Pain / Q000000981:diagnostic imaging* / Q000209:etiology; D011446:Prospective Studies; D011859:Radiography; D011795:Surveys and Questionnaires
keywords: acetabulum; femoral stem; hip arthroplasty; pain; radiographs