title: An uncemented iso-elastic monoblock acetabular component: preliminary results.
abstract: Little is known about the clinical application of highly cross-linked polyethylene (HXLPE) blended with vitamin E. This study evaluates an uncemented iso-elastic monoblock cup with vitamin E blended HXLPE. 112 patients were followed up for 2years. 95.5% completed the follow-up. The mean VAS score for patient satisfaction was 8.8 and the mean Harris Hip Score was 94.2. In 7 cases initial gaps behind the cup were observed, which disappeared completely during follow-up in 6 cases. The mean femoral head penetration rate was 0.055mm/year. No adverse reactions or abnormal mechanical behavior was observed with the short term use of vitamin E blended HXLPE. This study shows the promising performance of this cup and confirms the potential of vitamin E blended HXLPE.
authors.affiliation: Clinical Orthopedic Research Center-midden Nederland (CORC-mN) Department of Orthopedics, Diakonessenhuis Hospital, Utrecht, The Netherlands.
authors.forename: Jelle J
authors.initials: JJ
authors.lastname: Halma
authors.affiliation: Clinical Orthopedic Research Center-midden Nederland (CORC-mN) Department of Orthopedics, Diakonessenhuis Hospital, Utrecht, The Netherlands.
authors.forename: Rienk
authors.initials: R
authors.lastname: Eshuis
authors.affiliation: Department of Orthopedics, University Medical Center Utrecht, Utrecht, The Netherlands.
authors.forename: H Charles
authors.initials: HC
authors.lastname: Vogely
authors.affiliation: Clinical Orthopedic Research Center-midden Nederland (CORC-mN) Department of Orthopedics, Diakonessenhuis Hospital, Utrecht, The Netherlands.
authors.forename: Steven M
authors.initials: SM
authors.lastname: van Gaalen
authors.affiliation: Clinical Orthopedic Research Center-midden Nederland (CORC-mN) Department of Orthopedics, Diakonessenhuis Hospital, 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 / Q000379:methods*; D001843:Bone Cements; D004548:Elasticity; D005260:Female; D005270:Femur Head / Q000601:surgery; D005500:Follow-Up Studies; D006622:Hip Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged; D017060:Patient Satisfaction; D020959:Polyethylene / Q000737:chemistry*; D011446:Prospective Studies; D011474:Prosthesis Design; D014810:Vitamin E / Q000737:chemistry*
chemical_list: D001843:Bone Cements; D014810:Vitamin E; D020959:Polyethylene
keywords: femoral head penetration; highly-crosslinked polyethylene; iso-elastic; total hip arthroplasty; uncemented monoblock cup; vitamin E blended