title: Early head penetration into cemented Hylamer Ogee socket.
abstract: The authors reviewed 18 consecutive cemented total hip arthroplasties with the Hylamer Ogee socket. The average follow-up period was 47 months. All Hylamer Ogee sockets were sterilized by gamma irradiation in air, and the average period from production to surgery was 12 months. Two-dimensional penetration of the femoral head into the Hylamer Ogee socket was determined from anteroposterior radiographs of the pelvis using a digitizer. The average head penetration rate of the present series was 0.36 mm/y. Osteolysis around both components was found in 6 cases (30%). Of 4 cases defined as aseptic loosening, 2 were revised during the follow-up period. To detect component loosening because of catastrophic high wear of the cemented Hylamer Ogee socket as early as possible, precise radiographic follow-up is essential.
authors.affiliation: Division of Orthopedic Surgery, Okazaki City Hospital, Okazaki, Japan.
authors.forename: Toshiki
authors.initials: T
authors.lastname: Iwase
authors.forename: Hideki
authors.initials: H
authors.lastname: Warashina
authors.forename: Ken-Ichi
authors.initials: K
authors.lastname: Yamauchi
authors.forename: Syo
authors.initials: S
authors.lastname: Sugiura
authors.forename: Yukiharu
authors.initials: Y
authors.lastname: Hasegawa
mesh_terms: D000368:Aged; D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects* / Q000295:instrumentation; D001843:Bone Cements; D019544:Equipment Failure Analysis; D005260:Female; D006622:Hip Prosthesis; D006801:Humans; D007592:Joint Diseases / Q000601:surgery; D008297:Male; D008875:Middle Aged; D011475:Prosthesis Failure
chemical_list: D001843:Bone Cements