Isolated Acetabular Liner Exchange for Polyethylene Wear and Osteolysis with Well-Fixed Metal Shell
نویسندگان
چکیده
منابع مشابه
Isolated polyethylene exchange versus acetabular revision for polyethylene wear.
UNLABELLED Polyethylene wear and osteolysis are not uncommon in THA mid- and long-term. In asymptomatic patients the dilemma faced by the orthopaedic surgeon is whether to revise the cup and risk damage to the supporting columns and even pelvic discontinuity or to perform isolated polyethylene exchange and risk a high rate of postoperative recurrent instability and dislocation that will necessi...
متن کاملA biomechanical analysis of polyethylene liner cementation into a fixed metal acetabular shell.
BACKGROUND A common clinical scenario encountered by an orthopaedic surgeon is a patient with a secure cementless acetabular shell and a failed polyethylene liner. One treatment option is to cement a new liner into the fixed shell. The purpose of this study was to evaluate technical variables to improve the mechanical strength of such cemented liner constructs. METHODS The contributions of sh...
متن کاملWear of a sequentially annealed polyethylene acetabular liner
BACKGROUND AND PURPOSE We previously reported on a randomized controlled trial (RCT) that examined the effect of adding tobramycin to bone cement after femoral stem migration. The present study examined femoral head penetration into both conventional and highly crosslinked polyethylene acetabular liners in the same group of RCT patients, with a minimum of 5 years of postoperative follow-up. P...
متن کاملTreatment for Wear and Osteolysis in Well-Fixed Uncemented TKR
Background. Traditionally, osteolysis around total knee replacements (TKRs) is treated with complete revision. In certain subsets, polyethylene insert exchange and bone grafting may be applicable. This study reports the clinical outcomes for selective bone grafting in patients with osteolysis without complete revision of the TKR. Methods. This retrospective study analyzes 10 TKRs (9 patients, 6...
متن کاملEffects of Acetabular Shell Deformation and Liner Thickness on Frictional Torque in Polyethylene Acetabular Bearings
Introduction: Studies have shown that frictional forces in an acetabular component during the gait cycle may be a contributing factor to acetabular shell loosening.1,2 Recent publications have indicated that metal shell deformation can cause secondary forces attributed to insertion technique of press-fit components.3,4 In addition, it is also recognized that larger diameter femoral heads offer ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Clinics in Orthopedic Surgery
سال: 2019
ISSN: 2005-291X,2005-4408
DOI: 10.4055/cios.2019.11.3.270