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Meta-Analysis
. 2017 May;51(3):215-222.
doi: 10.1016/j.aott.2017.02.001. Epub 2017 May 12.

A comparison of short term radiological alignment outcomes of the patient specific and standard instrumentation for primary total knee arthroplasty: A systematic review and meta-analysis

Ilhan Alcelik  1 , Mark Blomfield  1 , Cenk Öztürk  2 , Ashish Soni  3 , Richard Charity  3 , Alex Acornley  3
Affiliations
Meta-Analysis

A comparison of short term radiological alignment outcomes of the patient specific and standard instrumentation for primary total knee arthroplasty: A systematic review and meta-analysis

Ilhan Alcelik et al. Acta Orthop Traumatol Turc. 2017 May.

Abstract

Objective: The aim of this study was to review the radiological alignment outcomes of patient Specific (PS) cutting blocks and Standard Instrumentation in Primary Total Knee Arthroplasty.

Methods: We hypothesized that the use of PS techniques would significantly improve sagittal, coronal and rotational alignment of the prosthesis on short term. We performed a systematic review and a meta-analysis including all the randomised controlled trials (RCT) using PS and standard (ST) total knee arthroplasty to date.

Results: A total of 538 PS TKA and 549 ST TKA were included in the study. Statistical analysis of the outliers for femoral component sagittal, coronal and rotational positioning, tibial component sagittal and coronal positioning and the overall mechanical axis were assessed. We found that there was no significant benefit from using PS instrumentation in primary knee arthroplasty to aid in the positioning of either the tibial or femoral components. Furthermore sagittal plane tibial component positioning was worse in the PS than the traditional ST group.

Conclusion: Our results suggest that at present PS instrumentation is not superior to ST instrumentation in primary total knee arthroplasty.

Level of evidence: Level 1, Systematic review of therapeutic studies.

Keywords: Alignment; Meta-analysis; Patient-specific; Total knee arthroplasty.

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Figures

Fig. 1
Fig. 1
PRISMA chart of the study selection process.
See this image and copyright information in PMC

References

    1. Ritter M.A., Herbst S.A., Keating E.M., Faris P.M., Meding J.B. Long-term survival analysis of a posterior cruciate retaining total condylar total knee arthroplasty. Clin Orthop Relat Res. 1994;309:136–145. - PubMed
    1. Berend M.E., Ritter M.A., Meding J.B. Tibial component failure mechanisms in total knee arthroplasty. Clin Orthop Relat Res. 2004;428:26–34. - PubMed
    1. Huang N.F., Dowsey M.M., Ee E. Coronal alignment correlates with outcome after total knee arthroplasty: five-year follow-up of a randomized controlled trial. J Arthroplast. 2012;27:1737–1741. - PubMed
    1. Lombardi A.V., Jr., Berend K.R., Adams J.B. Patient-specific approach in total knee arthroplasty. Orthopedics. 2008 Sep;31(9):927–930. - PubMed
    1. Ng V.Y., DeClaire J.H., Berend K.R., Gulick B.C., Lombardi A.V., Jr. Improved accuracy of alignment with patient-specific positioning guides compared with manual instrumentation in TKA. Clin Orthop Relat Res. 2012 Jan;470(1):99–107. - PMC - PubMed