title: Excellent survivorship of the Morscher monoblock cup with a 28-mm Metasul-on-Metasul bearing at a mean of 5-year follow-up.
abstract: The Morscher monoblock cup is designed for optimal osteointegration and holds the potential for excellent long-term survival. The Metasul-on-Metasul bearing was introduced to eliminate wear-induced periprosthetic osteolysis. This study reviews 137 Morscher cups with a 28-mm Metasul-on-Metasul bearing used in primary THA at 5.1years (3.2-6.6) after implantation. One hundred thirty-seven cups were implanted in 119 patients. Three patients (2.2%) had died of unrelated causes, and 10 patients (8.0%) were lost to follow-up. The mean Harris Hip score was 89.8 and the mean WOMAC sum score was 18.5. No cases of acetabular osteolysis were found. The 5-year cup survival rate was 98.5%. The Morscher cup with a 28-mm Metasul-on-Metasul bearing used in uncemented THA showed no acetabular osteolysis and promising survivorship at intermediate-term follow-up.
authors.affiliation: Clinical Orthopedic Research Center (CORC-mN), Department of Orthopedics, Diakonessenhuis Hospital Utrecht/Zeist, Utrecht, the Netherlands.
authors.forename: Jelle J
authors.initials: JJ
authors.lastname: Halma
authors.affiliation: Clinical Orthopedic Research Center (CORC-mN), Department of Orthopedics, Diakonessenhuis Hospital Utrecht/Zeist, Utrecht, the Netherlands.
authors.forename: Daniel A
authors.initials: DA
authors.lastname: Godefrooij
authors.affiliation: Clinical Orthopedic Research Center (CORC-mN), Department of Orthopedics, Diakonessenhuis Hospital Utrecht/Zeist, Utrecht, the Netherlands; Department of Surgery, Diakonessenhuis Hospital Utrecht/Zeist, Utrecht, the Netherlands.
authors.forename: Rienk
authors.initials: R
authors.lastname: Eshuis
authors.affiliation: Clinical Orthopedic Research Center (CORC-mN), Department of Orthopedics, Diakonessenhuis Hospital Utrecht/Zeist, Utrecht, the Netherlands.
authors.forename: Steven M
authors.initials: SM
authors.lastname: van Gaalen
authors.affiliation: Clinical Orthopedic Research Center (CORC-mN), Department of Orthopedics, Diakonessenhuis Hospital Utrecht/Zeist, Utrecht, the Netherlands.
authors.forename: Arthur
authors.initials: A
authors.lastname: de Gast
mesh_terms: D000077:Acetabulum / Q000601:surgery*; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019644:Arthroplasty, Replacement, Hip; D015331:Cohort Studies; D005260:Female; D005500:Follow-Up Studies; D006621:Hip Joint; D006622:Hip Prosthesis; D006801:Humans; D007592:Joint Diseases / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D016348:Osseointegration; D010014:Osteolysis / Q000209:etiology / Q000517:prevention & control; D011474:Prosthesis Design; D011475:Prosthesis Failure; D012189:Retrospective Studies
keywords: Metasul-on-Metasul bearing; Morscher monoblock cup; survivorship