title: Cementless modular total hip arthroplasty in patients younger than fifty with femoral head osteonecrosis: minimum fifteen-year follow-up.
abstract: This study aimed to report the outcome of total hip arthroplasty (THA) with a modular femoral component in patients younger than fifty years with osteonecrosis of femoral head. Sixty-four osteonecrotic hips in fifty-five patients were available for clinical and radiographic analyses at minimum follow-up of fifteen-years. The mean Harris hip score improved from 36 points preoperatively to 92.7 points at final follow-up. Sixty-two (95.3%) hips demonstrated stable bone ingrowth. No hips showed loosening or required revision for aseptic loosening. Survivorship with an end point of stem revision for any reason was 93.8% and for aseptic loosening was 100% at 16.8years. We believe that cementless THA with a modular stem is a promising procedure for young and active patients with osteonecrosis of the femoral head.
authors.affiliation: Department of Orthopaedic Surgery, Pusan National University School of Medicine, Yangsan, South Korea.
authors.forename: Sang-Min
authors.initials: SM
authors.lastname: Kim
authors.forename: Seung-Jae
authors.initials: SJ
authors.lastname: Lim
authors.forename: Young-Wan
authors.initials: YW
authors.lastname: Moon
authors.forename: Yang-Tae
authors.initials: YT
authors.lastname: Kim
authors.forename: Kyung-Rae
authors.initials: KR
authors.lastname: Ko
authors.forename: Youn-Soo
authors.initials: YS
authors.lastname: Park
mesh_terms: D000328:Adult; D019644:Arthroplasty, Replacement, Hip; D001843:Bone Cements; D005260:Female; D005271:Femur Head Necrosis / Q000601:surgery*; D005500:Follow-Up Studies; D006622:Hip Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged
chemical_list: D001843:Bone Cements