Imperial College London
Alternate

ProfessorJustinCobb

Faculty of Medicine, Department of Surgery & Cancer

Chair in Orthopaedic Surgery
 
 
 
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Contact

 

+44 (0)20 7594 5534j.cobb Website

 
 
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Assistant

 

Miss Colinette Hazel +44 (0)20 7594 2725

 
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Location

 

c/oSir Michael Uren HubWhite City Campus

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Summary

 

Publications

Citation

BibTex format

@article{Garner:2021:10.1016/j.arth.2021.06.025,
author = {Garner, A and Dandridge, O and Amis, A and Cobb, J and van, Arkel R},
doi = {10.1016/j.arth.2021.06.025},
journal = {The Journal of Arthroplasty},
pages = {3765--3772.e4},
title = {Partial and combined partial knee arthroplasty: greater anterior-posterior stability than posterior-cruciate retaining total knee arthroplasty},
url = {http://dx.doi.org/10.1016/j.arth.2021.06.025},
volume = {36},
year = {2021}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - BackgroundLittle is known regarding anterior-posterior stability after anterior cruciate ligament–preserving partial (PKA) and combined partial knee arthroplasty (CPKA) compared to standard posterior cruciate–retaining total knee arthroplasty (TKA).MethodsThe anterior-posterior tibial translation of twenty-four cadaveric knees was measured, with optical tracking, while under 90N drawer with the knee flexed 0-90°. Knees were tested before and after PKA, CPKA (medial and lateral bicompartmental and bi-unicondylar), and then posterior cruciate–retaining TKA. The anterior-posterior tibial translations of the arthroplasty states, at each flexion angle, were compared to the native knee and each other with repeated measures analyses of variance and post-hoc t-tests.ResultsUnicompartmental and bicompartmental arthroplasty states had similar laxities to the native knee and to each other, with ≤1-mm differences throughout the flexion range (P ≥ .199). Bi-unicondylar arthroplasty resulted in 6- to 8-mm increase of anterior tibial translation at high flexion angles compared to the native knee (P ≤ .023 at 80-90°). Meanwhile, TKA exhibited increased laxity across all flexion angles, with increased anterior tibial translation of up to 18 ± 6 mm (P < .001) and increased posterior translation of up to 4 ± 2 mm (P < .001).ConclusionsIn a cadaveric study, anterior-posterior tibial translation did not differ from native laxity after PKA and CPKA. Posterior cruciate ligament–preserving TKA demonstrated increased laxity, particularly in anterior tibial translation.
AU  - Garner,A
AU  - Dandridge,O
AU  - Amis,A
AU  - Cobb,J
AU  - van,Arkel R
DO  - 10.1016/j.arth.2021.06.025
EP  - 3772
PY  - 2021///
SN  - 0883-5403
SP  - 3765
TI  - Partial and combined partial knee arthroplasty: greater anterior-posterior stability than posterior-cruciate retaining total knee arthroplasty
T2  - The Journal of Arthroplasty
UR  - http://dx.doi.org/10.1016/j.arth.2021.06.025
UR  - https://www.sciencedirect.com/science/article/pii/S0883540321005854?via%3Dihub
UR  - http://hdl.handle.net/10044/1/90767
VL  - 36
ER  -
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