Long-term Wear Data From a Prospective Multicenter Study of Second-Generation Highly Cross-linked Polyethylene Inserts in Total Hip Arthroplasty

Orthopedics
Peter M BonuttiRama Ramakrishnan

Abstract

In a prospective multicenter trial on highly cross-linked polyethylene inserts in patients undergoing total hip arthroplasty, 118 patients consented to 10-year follow-up. Medium-term follow-up results showed low wear at 5 and 7 years after surgery. The current study focuses on long-term data at 10 years. Patients were followed up by either phone or office visit to collect long-term clinical data including Harris hip score and adverse events. There were 2 deaths and 2 revisions, 1 at 6.5 years for pelvic cyst and severe pain and another at 8.0 years for recurrent dislocation. For wear analysis, suitable radiographic images for 48 patients (52 hips) at minimum 10-year follow-up were available. Mean age of the cohort was 62.5 years (62% female). Femoral head penetration was measured using Martell's method from the radiographic images between the 6-week and the subsequent follow-ups. Polyethylene wear rate was calculated from the penetration data. Descriptive statistics were performed. There was no evidence of significant oxidation or locking mechanism failure. Mean Harris hip score of the group was 94.3. No osteolysis was noted by an independent radiographic reviewer. The slope of the bestfit regression line to the femoral head pe...Continue Reading

References

Dec 31, 1997·The Journal of Bone and Joint Surgery. American Volume·J M Martell, S Berdia
Aug 9, 2002·The Journal of Arthroplasty·John H DumbletonAvram A Edidin
Mar 15, 2003·The Journal of Bone and Joint Surgery. American Volume·Andrew J HuiCecil H Rorabeck
Jun 5, 2003·The Journal of Bone and Joint Surgery. American Volume·John M MartellJoshua Jacobs
Sep 11, 2003·Clinical Orthopaedics and Related Research·John P CollierRobin L Brewer
Sep 6, 2005·The Journal of Bone and Joint Surgery. American Volume·Khaled J SalehKenneth A Krackow
Oct 4, 2006·Clinical Orthopaedics and Related Research·John H DumbletonAiguo Wang
Sep 21, 2007·Biomaterials·Ebru OralOrhun K Muratoglu
Sep 17, 2010·Clinical Orthopaedics and Related Research·William N CapelloMarybeth Naughton
Dec 14, 2011·Clinical Orthopaedics and Related Research·James A D'AntonioRama Ramakrishnan
Jul 31, 2013·Clinical Orthopaedics and Related Research·Stuart A CallaryDavid G Campbell
Jul 1, 2015·Clinical Orthopaedics and Related Research·Kevin L GarvinJohn Martell
Jul 2, 2015·International Orthopaedics·Julio J JaureguiMichael A Mont
Apr 19, 2016·Orthopedics·James D'AntonioRama Ramakrishnan

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Citations

May 16, 2020·SICOT-J·Jean Langlois, Moussa Hamadouche
Oct 2, 2021·Clinical Orthopaedics and Related Research·David G Campbell, Stuart A Callary

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Methods Mentioned

BETA
total hip arthroplasty

Clinical Trials Mentioned

NCT00958191

Software Mentioned

SAS
Martell Analysis Suite

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