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Open Access 25-09-2024 | Original Paper

High patient satisfaction with Customized Total Knee Arthroplasty at five year follow-up

Authors: Philipp Schippers, Felix Wunderlich, Yama Afghanyar, Victoria Buschmann, Thomas Klonschinski, Philipp Drees, Lukas Eckhard

Published in: International Orthopaedics

Abstract

Purpose

Despite numerous studies demonstrating promising short-term outcomes of Total Knee Arthroplasty (TKA) with Customized Individually Made (CIM) implants, there is a significant lack of data on their mid-term effectiveness. Given the increasing number of TKAs performed annually, the rising demand for CIM implants, and the associated burden of revision surgeries, understanding the mid-term performance of CIM implants is crucial. Therefore, this study aims to report on the mid-term (minimum 5 years) outcomes of TKA using a CIM implant.

Methods

This retrospective cohort study included a consecutive series of 116 patients who received the ConforMIS^® iTotal CR implant between 2015 and 2018. Inclusion criteria were end-stage knee osteoarthritis with coronal deformities below 10° and absence of ligamentous instability. Exclusion criteria included simultaneous bilateral TKA. Patients were followed up at a minimum of five years post-surgery. They completed a questionnaire reporting on satisfaction, pain levels using the Visual Analogue Scale (VAS), current weight, the Oxford Knee Score (OKS), and the Forgotten Joint Score for the knee (FJS-knee). Statistical analysis included descriptive statistics for demographic and clinical variables, and outcomes were reported as means with ranges.

Results

The mean follow-up duration was 5.9 ± 0.8 years (range 5–7.4 years). 90% of patients stated they would undergo the same operation again, and 93% were either satisfied or very satisfied. The mean VAS for pain at rest was 2 ± 1.5 (range 0–6) and during exercise was 3 ± 2 (range 0–8). 58 patients (53%) managed to lose weight. The mean OKS was 41 ± 9 points (range 15–48), and the mean FJS-knee was 67 ± 23 points (range 4–100). No severe complications occurred.

Conclusion

CIM TKA using the ConforMIS^® iTotal CR implant can achieve excellent results with 93% of patients being satisfied or very satisfied at mid-term follow-up of five years. Prospective, randomized, and patient-blinded trials comparing off-the-shelf (OTS) TKAs with CIM implants are necessary to evaluate whether these implants are superior or not.

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Title: High patient satisfaction with Customized Total Knee Arthroplasty at five year follow-up
Authors: Philipp Schippers
Felix Wunderlich
Yama Afghanyar
Victoria Buschmann
Thomas Klonschinski
Philipp Drees
Lukas Eckhard
Publication date: 25-09-2024
Publisher: Springer Berlin Heidelberg
Published in: International Orthopaedics
Print ISSN: 0341-2695
Electronic ISSN: 1432-5195
DOI: https://doi.org/10.1007/s00264-024-06325-y

Keynote webinar | Spotlight on modern management of frailty

Springer Medicine

High patient satisfaction with Customized Total Knee Arthroplasty at five year follow-up

Abstract

Purpose

Methods

Results

Conclusion

Keynote webinar | Spotlight on modern management of frailty

Springer Medicine

Abstract

Purpose

Methods

Results

Conclusion

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