The correlation between immediate radiolucent lines and early implant migration in cemented acetabular components

The Journal of Arthroplasty
D KneifJ Hutchison

Abstract

Periacetabular radiolucent lines (RLLs) on postoperative radiographs have been associated with early loosening of the acetabular component. It has also been shown that excessive migration of an implant corresponds to an increased incidence of later clinical failure. This study relates RLLs on anterior-posterior hip radiographs taken 10 days and 6 months postoperatively to implant migration detected by roentgen stereophotogrammetric analysis. We have shown that RLLs in DeLee and Charnley zone III in the first week postoperatively as well as at 6 months are positively and significantly (P < .05) associated with migration detected by roentgen stereophotogrammetric analysis. No significant association was found for zone I or II at either 10 days or at 6 months. Considering the limitations in observing RLLs, their presence in zone III appears to reflect on the mechanical stability of the acetabular cup from the beginning. This indicates that zone III, which represents the inferomedial aspect of the acetabulum, might have to receive special attention when preparing the acetabulum and implanting the acetabular cup.

References

May 1, 1990·The Journal of Bone and Joint Surgery. British Volume·S Kobayashi, K Terayama
Apr 1, 1993·The Journal of Arthroplasty·T P SchmalzriedW H Harris
May 1, 1993·The Journal of Bone and Joint Surgery. British Volume·J P HodgkinsonB M Wroblewski
Jul 1, 1997·The Journal of Bone and Joint Surgery. British Volume·A KobayashiM A Freeman
Feb 2, 1999·The Journal of Arthroplasty·M A Freeman
Jan 1, 2000·The Journal of Bone and Joint Surgery. British Volume·M A RitterM E Berend

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Citations

Apr 11, 2009·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Bryan D HoriTamara Godbey
Feb 7, 2007·Expert Review of Medical Devices·James A Sanfilippo, Matthew S Austin
Dec 21, 2012·Journal of Orthopaedic Surgery·Spyros N DarmanisA John Timperley
Oct 16, 2020·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·Alexander T BootePhilip J Hyde

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