Weight bearing radiographs are not necessary for measurement of polyethylene penetration in total hip prostheses: a radiostereometric study of 111 patients examined in weight-bearing and supine position

Acta Orthopaedica
Thord von SchewelovAke Carlsson

Abstract

Controversy exists as to whether polyethylene (PE) penetration of hip prostheses is underestimated when the measurements are made on radiographs obtained in supine position as compared to weight-bearing position. We examined 111 patients by radiostereometric analysis (RSA) in the supine and weight-bearing positions. The mean 3-D penetration was 0.68 mm (SD 0.58, range 0.04-3.05) for the supine position and 0.70 mm (SD 0.57, range 0.08-3.01) for the weight-bearing position. The correlation between supine and weight-bearing examinations was 0.99 (p < 0.001). The degree of penetration made no difference. There was no statistically significant difference as to whether the first examination was performed early, i.e. after 3 months, or after 12 months (p = 0.7). The small systematic difference in penetration values between the supine and the weight-bearing positions is of no clinical or methodological importance.

References

Jan 23, 1989·Biochimica Et Biophysica Acta·A D Cox, S G Wilkinson
Apr 18, 1998·The Journal of Bone and Joint Surgery. British Volume·I OnstenJ Besjakov
Apr 16, 1999·The Journal of Bone and Joint Surgery. British Volume·P N SmithR Taylor
Dec 30, 1999·The Journal of Arthroplasty·T AkisueA H Wilde
Mar 4, 2000·The Journal of Bone and Joint Surgery. British Volume·K G BalochR M Tillman
Aug 9, 2002·The Journal of Arthroplasty·John H DumbletonAvram A Edidin
Mar 15, 2005·Acta Orthopaedica Scandinavica·Thord von SchewelovIngemar Onsten

❮ Previous
Next ❯

Citations

Dec 10, 2009·Acta Orthopaedica·Maiken StillingOle Rahbek
Jan 1, 2009·Acta Orthopaedica. Supplementum·Maiken Stilling
Oct 11, 2014·Acta Orthopaedica·Stuart A CallaryDonald W Howie
Sep 18, 2009·Clinical Orthopaedics and Related Research·David CampbellStuart A Callary
Feb 13, 2010·Clinical Orthopaedics and Related Research·David G CampbellStuart A Callary
Jun 16, 2006·Der Orthopäde·C Engel, UNKNOWN European Paediaric Orthopaedic Societry (EPOS)
Dec 6, 2005·The Journal of Bone and Joint Surgery. British Volume·T von SchewelovJ Besjakov

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

IEEE Transactions on Pattern Analysis and Machine Intelligence
J Canny
The Journal of Bone and Joint Surgery. British Volume
J HauptfleischD W Murray
© 2021 Meta ULC. All rights reserved