No Difference Between Computer-assisted and Conventional Total Knee Arthroplasty: Five-year Results of a Prospective Randomised Study

Overview

Journal Knee Surg Sports Traumatol Arthrosc

Publisher Wiley

Specialties Emergency Medicine
General Surgery
Orthopedics

Date 2013 Jul 16

PMID 23851969

Citations 22

Authors

Jorg Lutzner

Julian Dexel

Stephan Kirschner

Affiliations

Soon will be listed here.

Abstract

Purpose: The use of computer-assisted surgery (CAS) in total knee arthroplasty (TKA) results in better limb and implant alignment compared to conventional TKA; however, it is unclear whether this translates to better mid- to long-term clinical outcome. This prospective randomised study comparing CAS and conventional TKA reports the functional and patient perceived outcomes at a follow-up of 5 years. The hypothesis was that there would be a difference in functional outcome or quality of life after mid-term follow-up.

Methods: Sixty-seven patients were available for physical and radiological examination at 5 years. The Knee Society Score (KSS) was used to describe functional outcome and the Euroquol questionnaire for quality of life.

Results: The mean total KSS for the CAS group improved from 91.1 (SD 22.3) points preoperatively to 157.4 (SD 21.9) and 150.2 (SD 30.4) points at 2 and 5 years, respectively. In the conventional group, the mean total KSS was 99.6 (SD 18.6) points preoperatively and 151.1 (SD 26.0) and 149.0 (SD 28.0) points at 2 and 5 years, respectively. The mean quality of life score improved from 48.2 (SD 16.5) points preoperatively to 67.4 (SD 16.3) and 66.8 (SD 22.2) points at 2 and 5 years in the CAS group, and from 52.2 (SD 17.1) points preoperatively to 65.6 (SD 14.6) and 61.7 (SD 19.3) points at 2 and 5 years, respectively, in the conventional TKA group. These differences were not statistically significant. There were radiolucent lines up to 2 mm in 11 knees (four CAS, seven conventional), but there were no changes in implant position.

Conclusions: There were no significant differences in functional or patient perceived outcome after mid-term follow-up in this study.

Level Of Evidence: I.

Citing Articles

Comparison of the accuracy and efficacy of different assistive techniques in primary total knee arthroplasty: A network meta-analysis.

Zheng Y, Li Y, Yuan Z, Geng X, Tian H J Exp Orthop. 2024; 11(4):e70098.

PMID: 39619732 PMC: 11604599. DOI: 10.1002/jeo2.70098.

Beyer F, Pape A, Lutzner C, Kirschner S, Lutzner J BMC Musculoskelet Disord. 2021; 22(1):707.

PMID: 34407776 PMC: 8371882. DOI: 10.1186/s12891-021-04556-3.

Clinico-Radiological and Functional Results of the Navigated Gradius (Gradually Reducing Radius) Knee Prosthesis at Short to Mid-Term Follow-Up.

Sharma M, Dhanjani B, Bashir J, Anshu A Indian J Orthop. 2021; 55(Suppl 1):62-68.

PMID: 34122756 PMC: 8149567. DOI: 10.1007/s43465-020-00266-5.

Computer-Assisted Orthopedic and Trauma Surgery.

Stubig T, Windhagen H, Krettek C, Ettinger M Dtsch Arztebl Int. 2021; 117(47):793-800.

PMID: 33549155 PMC: 7947640. DOI: 10.3238/arztebl.2020.0793.

Computer Navigation-Assisted Knee Replacement Demonstrates Improved Outcome Compared with Conventional Knee Replacement at Mid-Term Follow-up: A Systematic Review and Meta-analysis.

Ayekoloye C, Nwangwu O, Alonge T Indian J Orthop. 2020; 54(6):757-766.

PMID: 33133398 PMC: 7572977. DOI: 10.1007/s43465-020-00161-z.

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