Does the degree of intraoperatively identified cartilage loss affect the outcomes of primary total knee arthroplasty without patella resurfacing? A prospective comparative cohort study

Abstract Purpose The aim of this study was to investigate whether the degree of patellar cartilage loss confirmed during index surgery affects the clinical and radiologic outcomes of total knee arthroplasty (TKA) performed without patellar resurfacing. Methods We prospectively divided 2012 patients...

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Main Authors: Oog-Jin Shon, Gi Beom Kim
Format: Article
Language:English
Published: BMC 2022-07-01
Series:Knee Surgery & Related Research
Subjects:
Online Access:https://doi.org/10.1186/s43019-022-00161-3
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author Oog-Jin Shon
Gi Beom Kim
author_facet Oog-Jin Shon
Gi Beom Kim
author_sort Oog-Jin Shon
collection DOAJ
description Abstract Purpose The aim of this study was to investigate whether the degree of patellar cartilage loss confirmed during index surgery affects the clinical and radiologic outcomes of total knee arthroplasty (TKA) performed without patellar resurfacing. Methods We prospectively divided 2012 patients with a minimum follow-up of 12 months into two groups according to intraoperatively graded cartilage lesions graded using the International Cartilage Repair Society (ICRS) system: group 1, grades 0‒2 (n = 110); group 2, grades 3‒4 (n = 102). Relevant locations, such as medial, lateral, or both facets of the patella, were also assessed. Clinical outcomes were assessed using the Western Ontario and McMaster Universities Osteoarthritis Index, Feller’s patella score, and Kujala anterior knee pain score. Radiographic outcomes included patellar tilt angle and lateral patellar shift on Merchant’s view. Results Clinical and radiographic outcomes were not significantly different between the two groups. No patient underwent secondary patellar resurfacing. Although the lateral facet was significantly more involved, there were no significant differences in outcomes. Conclusions The degree of intraoperatively identified patellar cartilage loss did not affect the short-term outcomes following primary TKA without patellar resurfacing. Level of evidence II: Prospective comparative study.
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spelling doaj.art-2add1685dc0747319de50dc3d93e87422022-12-22T01:30:18ZengBMCKnee Surgery & Related Research2234-24512022-07-013411910.1186/s43019-022-00161-3Does the degree of intraoperatively identified cartilage loss affect the outcomes of primary total knee arthroplasty without patella resurfacing? A prospective comparative cohort studyOog-Jin Shon0Gi Beom Kim1Department of Orthopedic Surgery, Yeungnam University College of Medicine, Yeungnam University Medical CenterDepartment of Orthopedic Surgery, Yeungnam University College of Medicine, Yeungnam University Medical CenterAbstract Purpose The aim of this study was to investigate whether the degree of patellar cartilage loss confirmed during index surgery affects the clinical and radiologic outcomes of total knee arthroplasty (TKA) performed without patellar resurfacing. Methods We prospectively divided 2012 patients with a minimum follow-up of 12 months into two groups according to intraoperatively graded cartilage lesions graded using the International Cartilage Repair Society (ICRS) system: group 1, grades 0‒2 (n = 110); group 2, grades 3‒4 (n = 102). Relevant locations, such as medial, lateral, or both facets of the patella, were also assessed. Clinical outcomes were assessed using the Western Ontario and McMaster Universities Osteoarthritis Index, Feller’s patella score, and Kujala anterior knee pain score. Radiographic outcomes included patellar tilt angle and lateral patellar shift on Merchant’s view. Results Clinical and radiographic outcomes were not significantly different between the two groups. No patient underwent secondary patellar resurfacing. Although the lateral facet was significantly more involved, there were no significant differences in outcomes. Conclusions The degree of intraoperatively identified patellar cartilage loss did not affect the short-term outcomes following primary TKA without patellar resurfacing. Level of evidence II: Prospective comparative study.https://doi.org/10.1186/s43019-022-00161-3KneeTotal knee arthroplastyPatellar resurfacingPatellar retention
spellingShingle Oog-Jin Shon
Gi Beom Kim
Does the degree of intraoperatively identified cartilage loss affect the outcomes of primary total knee arthroplasty without patella resurfacing? A prospective comparative cohort study
Knee Surgery & Related Research
Knee
Total knee arthroplasty
Patellar resurfacing
Patellar retention
title Does the degree of intraoperatively identified cartilage loss affect the outcomes of primary total knee arthroplasty without patella resurfacing? A prospective comparative cohort study
title_full Does the degree of intraoperatively identified cartilage loss affect the outcomes of primary total knee arthroplasty without patella resurfacing? A prospective comparative cohort study
title_fullStr Does the degree of intraoperatively identified cartilage loss affect the outcomes of primary total knee arthroplasty without patella resurfacing? A prospective comparative cohort study
title_full_unstemmed Does the degree of intraoperatively identified cartilage loss affect the outcomes of primary total knee arthroplasty without patella resurfacing? A prospective comparative cohort study
title_short Does the degree of intraoperatively identified cartilage loss affect the outcomes of primary total knee arthroplasty without patella resurfacing? A prospective comparative cohort study
title_sort does the degree of intraoperatively identified cartilage loss affect the outcomes of primary total knee arthroplasty without patella resurfacing a prospective comparative cohort study
topic Knee
Total knee arthroplasty
Patellar resurfacing
Patellar retention
url https://doi.org/10.1186/s43019-022-00161-3
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AT gibeomkim doesthedegreeofintraoperativelyidentifiedcartilagelossaffecttheoutcomesofprimarytotalkneearthroplastywithoutpatellaresurfacingaprospectivecomparativecohortstudy