Are the Oxford(®) medial unicompartmental knee arthroplasty new instruments reducing the bearing dislocation risk while improving components relationships? A case control study

Orthopaedics & Traumatology, Surgery & Research : OTSR
I J KohYong In

Abstract

The recently introduced Microplasty(®) system is an upgrade of conventional phase III instrumentation. However, little is known of its impact on the position of the implant following the Oxford(®) mobile-bearing unicompartmental knee arthroplasty (UKA). This study investigated whether the Microplasty(®) instrumentation system can improve the positioning of the implant and reduce the rate of early failure. Microplasty(®) provides a better positioning and decreases the rate of dislocation. The medical records and radiographs of 82 consecutive Oxford(®) UKAs were reviewed retrospectively. The radiographic parameters and prevalence of early failure of 41 UKAs performed with the Microplasty(®) system and 41 UKAs using the conventional instrumentation system were compared. Both groups were comparable in terms of demographics and preoperative status. The femoral components in the Microplasty(®) group were more contiguously placed and more convergent in relation to the tibial components compared to the conventional instrumentation system (P<0.01). The frequency of bearing dislocation was lower in the Microplasty(®) group (P=0.04). A wide gap and the angle between components were associated with an increased risk of bearing dislocation....Continue Reading

References

Mar 14, 2001·The Journal of Bone and Joint Surgery. British Volume·O RobertssonL Lidgren
Sep 28, 2004·The Journal of Bone and Joint Surgery. British Volume·C RajasekharA Smith
May 17, 2005·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Peter VorlatRené Verdonk
Aug 9, 2007·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Nanne P KortRobbie Deutman
Jan 4, 2008·The Journal of Bone and Joint Surgery. American Volume·Roger H Emerson, Linda L Higgins
Apr 2, 2009·The Journal of Bone and Joint Surgery. British Volume·A GulatiD W Murray
Jul 31, 2012·The Journal of Bone and Joint Surgery. British Volume·H-C LimS-J Kim
Apr 30, 2013·Orthopaedics & Traumatology, Surgery & Research : OTSR·R ChatellardUNKNOWN Société d’Orthopédie et de Traumatologie de l’Ouest (SOO)
Sep 3, 2013·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Seung-Ju KimJong Hun Kim

❮ Previous
Next ❯

Citations

Feb 11, 2020·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·James A KennedyDavid W Murray
Apr 26, 2017·Archives of Orthopaedic and Trauma Surgery·Tilman WalkerTobias Gotterbarm
Aug 28, 2020·Journal of Orthopaedic Surgery and Research·Jonathan Patrick NgYuk Wah Hung
Oct 28, 2019·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Yoshio MatsuiKenji Fukunaga
Sep 15, 2021·The Journal of Knee Surgery·Riccardo D'AmbrosiNicola Ursino

❮ 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.