Patient-specific instrumentation improves alignment of lateral unicompartmental knee replacements by novice surgeons

International Orthopaedics
Chin Ting Justin NgJustin Cobb

Abstract

Patient-specific instrumentation (PSI) has the potential to offer numerous benefits-not least of all, improved resection accuracy; but its potential has not been realised in clinical studies. An explanation may be the focus of such studies on the total knee replacement (TKR-a common procedure, with which surgeons are generally very familiar. Consequently, we sought to investigate the potential role of PSI in guiding novice surgeons to perform the more technically demanding and less familiar lateral unicondylar knee replacement (LUKR). Twelve orthopaedic trainees naive to LUKR were instructed to perform the procedure according to a pre-operative plan. These were carried out on synthetic sawbones and were completed once with conventional instrumentation alone and once with the adjunct of PSI, allowing a comparison of the plan adherence achieved by the two sets of instrumentation. There was a tendency for PSI to demonstrate improved plan adherence, though a statistically significant improvement was only seen in compound rotational error of the femoral implant (p = 0.004). PSI was, however, able to produce narrower standard deviations in the mean translational displacement of the femoral implant and also the mean rotational displac...Continue Reading

References

Aug 13, 2008·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Graeme Philip Hopper, William Joseph Leach
Jul 7, 2009·The Journal of Arthroplasty·William G HamiltonGerard A Engh
Jul 9, 2013·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·E ServienP Neyret
Oct 23, 2013·The Journal of Arthroplasty·Anatole V WiikJustin Peter Cobb
Dec 18, 2013·International Orthopaedics·Matthieu OllivierJean-Noël Argenson
Jan 18, 2014·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·M L Dao TrongN Helmy
Jan 28, 2014·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Bart KerensNanne P Kort
Sep 30, 2014·HSS Journal : the Musculoskeletal Journal of Hospital for Special Surgery·Thomas J HeyseGeoffrey H Westrich

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Citations

Apr 6, 2019·Hip International : the Journal of Clinical and Experimental Research on Hip Pathology and Therapy·Keisuke UemuraJustin P Cobb
Jul 24, 2018·EFORT Open Reviews·E Carlos Rodríguez-Merchán, Primitivo Gómez-Cardero
Dec 22, 2020·Der Orthopäde·Malin MeierJohannes Beckmann
Jul 2, 2021·The International Journal of Medical Robotics + Computer Assisted Surgery : MRCAS·Anurag MittalTae Kyun Kim
Aug 26, 2021·BMC Musculoskeletal Disorders·László TörökEndre Varga

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