2‐year results of middle‐aged patients with two‐compartment cartilage lesions in one knee treated with two patient specific metal implants

Abstract Purpose Focal chondral lesions of the femur are currently treated with biological repair or arthroplasty. However, some patients are not suitable for either one due to lesion size, age, or prior biological treatment attempts. While singular patient‐specific focal mini metal implants already...

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Main Authors: Daniel Aaron den Toom, Markus Rieke, Allaeldin Elbadawi, Clemens Kösters, Maria‐Josef‐Hospital Greven
Format: Article
Language:English
Published: Wiley 2023-01-01
Series:Journal of Experimental Orthopaedics
Subjects:
Online Access:https://doi.org/10.1186/s40634-023-00648-2
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author Daniel Aaron den Toom
Markus Rieke
Allaeldin Elbadawi
Clemens Kösters
Maria‐Josef‐Hospital Greven
author_facet Daniel Aaron den Toom
Markus Rieke
Allaeldin Elbadawi
Clemens Kösters
Maria‐Josef‐Hospital Greven
author_sort Daniel Aaron den Toom
collection DOAJ
description Abstract Purpose Focal chondral lesions of the femur are currently treated with biological repair or arthroplasty. However, some patients are not suitable for either one due to lesion size, age, or prior biological treatment attempts. While singular patient‐specific focal mini metal implants already showed good results, the outcomes of bicompartmental implantation of these implants have not been discussed in the literature yet. This study aims to evaluate clinical outcomes of patients who underwent bicompartmental implantation of two patient‐specific implants. Methods This prospective, non‐randomized, non‐comparative pilot study evaluates results up to two years after bicompartmental implantation of two implants (Episealer Implant, Episurf, Stockholm, Sweden). A damage report is compiled using a special MRI program and patient specific implants are manufactured, including 3D‐printed surgical instruments to provide exact placement of the implant. The patients were assessed repeatedly using the Knee Injury and Osteoarthritis Outcome Score (KOOS) and Visual Analogue Scale (VAS) for pain during the follow‐up. Results The scores were evaluated three, 12, and 24 months after surgery and showed good results. The median in both scores improved from 37.7 for the KOOS5 preoperatively to 69.1 after 24 months and from 69 for the VAS for pain preoperatively to 9 after 24 months. Conclusion Overall, for the small study group presented, the early results are promising. With noticeable improvement in KOOS and VAS for pain after two years, patient specific implants appear to become relevant in future standardized treatment of femoral chondral lesions. Especially with bicompartmental implantation, full arthroplasty can be delayed even further. Level of Evidence IV
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spelling doaj.art-ded5ecdaeb41429dbad94728ab9215952024-03-07T12:46:42ZengWileyJournal of Experimental Orthopaedics2197-11532023-01-01101n/an/a10.1186/s40634-023-00648-22‐year results of middle‐aged patients with two‐compartment cartilage lesions in one knee treated with two patient specific metal implantsDaniel Aaron den Toom0Markus Rieke1Allaeldin Elbadawi2Clemens Kösters3Maria‐Josef‐Hospital Greven4Maria‐Josef Hospital GrevenGrevenGermanyMaria‐Josef Hospital GrevenGrevenGermanyMaria‐Josef Hospital GrevenGrevenGermanyMaria‐Josef Hospital GrevenGrevenGermanyMaria‐Josef Hospital GrevenGrevenGermanyAbstract Purpose Focal chondral lesions of the femur are currently treated with biological repair or arthroplasty. However, some patients are not suitable for either one due to lesion size, age, or prior biological treatment attempts. While singular patient‐specific focal mini metal implants already showed good results, the outcomes of bicompartmental implantation of these implants have not been discussed in the literature yet. This study aims to evaluate clinical outcomes of patients who underwent bicompartmental implantation of two patient‐specific implants. Methods This prospective, non‐randomized, non‐comparative pilot study evaluates results up to two years after bicompartmental implantation of two implants (Episealer Implant, Episurf, Stockholm, Sweden). A damage report is compiled using a special MRI program and patient specific implants are manufactured, including 3D‐printed surgical instruments to provide exact placement of the implant. The patients were assessed repeatedly using the Knee Injury and Osteoarthritis Outcome Score (KOOS) and Visual Analogue Scale (VAS) for pain during the follow‐up. Results The scores were evaluated three, 12, and 24 months after surgery and showed good results. The median in both scores improved from 37.7 for the KOOS5 preoperatively to 69.1 after 24 months and from 69 for the VAS for pain preoperatively to 9 after 24 months. Conclusion Overall, for the small study group presented, the early results are promising. With noticeable improvement in KOOS and VAS for pain after two years, patient specific implants appear to become relevant in future standardized treatment of femoral chondral lesions. Especially with bicompartmental implantation, full arthroplasty can be delayed even further. Level of Evidence IVhttps://doi.org/10.1186/s40634-023-00648-2Patient specific implantKnee preservationFocal cartilage lesionMiddle‐aged patientVAS for painKOOS
spellingShingle Daniel Aaron den Toom
Markus Rieke
Allaeldin Elbadawi
Clemens Kösters
Maria‐Josef‐Hospital Greven
2‐year results of middle‐aged patients with two‐compartment cartilage lesions in one knee treated with two patient specific metal implants
Journal of Experimental Orthopaedics
Patient specific implant
Knee preservation
Focal cartilage lesion
Middle‐aged patient
VAS for pain
KOOS
title 2‐year results of middle‐aged patients with two‐compartment cartilage lesions in one knee treated with two patient specific metal implants
title_full 2‐year results of middle‐aged patients with two‐compartment cartilage lesions in one knee treated with two patient specific metal implants
title_fullStr 2‐year results of middle‐aged patients with two‐compartment cartilage lesions in one knee treated with two patient specific metal implants
title_full_unstemmed 2‐year results of middle‐aged patients with two‐compartment cartilage lesions in one knee treated with two patient specific metal implants
title_short 2‐year results of middle‐aged patients with two‐compartment cartilage lesions in one knee treated with two patient specific metal implants
title_sort 2 year results of middle aged patients with two compartment cartilage lesions in one knee treated with two patient specific metal implants
topic Patient specific implant
Knee preservation
Focal cartilage lesion
Middle‐aged patient
VAS for pain
KOOS
url https://doi.org/10.1186/s40634-023-00648-2
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