title: Femoral head viability following resurfacing arthroplasty. A clinical positron emission tomography study.
abstract: Hip resurfacing (HR) carries attendant risks of avascular necrosis (AVN) and femoral neck fracture. We used fluoride positron emission tomography (PET) scans to analyze bone metabolism 2-5 years after surgery in 35 cases. Three of the patients had been clinical failures. Using PET scans in the remaining 32 cases, 7 were found to have an area of non-viable bone in the femoral head. This was seen following both posterior and antero lateral approaches. Fluoride PET is a sensitive and useful method for evaluating bone metabolism following HR.
authors.affiliation: Department of Orthopedics Gävle hospital and Centre for Research & Development Uppsala University / County Council of Gävleborg, Sweden. gosta.ullmark@lg.se
authors.forename: Gösta
authors.initials: G
authors.lastname: Ullmark
authors.forename: Kent
authors.initials: K
authors.lastname: Sundgren
authors.forename: Jan
authors.initials: J
authors.lastname: Milbrink
authors.forename: Olle
authors.initials: O
authors.lastname: Nilsson
mesh_terms: D000293:Adolescent; D000328:Adult; D019644:Arthroplasty, Replacement, Hip; D005260:Female; D005265:Femoral Neck Fractures / Q000000981:diagnostic imaging / Q000378:metabolism / Q000473:pathology; D005270:Femur Head / Q000000981:diagnostic imaging / Q000378:metabolism / Q000473:pathology*; D005271:Femur Head Necrosis / Q000000981:diagnostic imaging / Q000378:metabolism / Q000473:pathology*; D005462:Fluorine Radioisotopes; D006622:Hip Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged; D049268:Positron-Emission Tomography / Q000379:methods*; D011183:Postoperative Complications; D011446:Prospective Studies; D011475:Prosthesis Failure; D012086:Reoperation; D055815:Young Adult
chemical_list: D005462:Fluorine Radioisotopes