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Comparative Study
. 2017 May;27(4):539-544.
doi: 10.1007/s00590-017-1934-8. Epub 2017 Mar 9.

Changing trends in total knee replacement

Ewan B Goudie  1 , Cal Robinson  2 , Phil Walmsley  2 , Ivan Brenkel  2
Affiliations
Comparative Study

Changing trends in total knee replacement

Ewan B Goudie et al. Eur J Orthop Surg Traumatol. 2017 May.

Abstract

Introduction: This study evaluates a possible change in the demographics and surgical practice observed in a large cohort of patients undergoing total knee replacement (TKR).

Patients and methods: We performed a retrospective analysis of a prospectively collected data on two groups of consecutive patients undergoing primary TKR. Group one consisted of patients who underwent surgery between 1994 and 1998. Group two consisted of patients who had surgery between 2009 and 2012.

Results: The mean age of group two was significantly greater than that of group one: 68.9 years (68.1-69.7 years) for group one versus 70.1 years (69.6-70.6 years) for group two (p = 0.009). The mean BMI of group two was significantly greater than that of group one: 29.5 kg/m2 (29.0-29.9 kg/m2) for group one versus 32.0 kg/m2 (31.7-32.3 kg/m2) for group two (p < 0.001). The mean pain component of the AKSS was significantly worse in group one than in group two: 28.6 (27.2-30.0) for group one versus 35.5 (34.6-36.4) for group two (p < 0.001). The mean function component of the AKSS was significantly worse in group one than in group two: 48.6 (47.3-49.9) for group one versus 51.5 (50.7-52.3) for group two (p < 0.001).

Conclusion: This study describes the change in demographics of patients undergoing TKR in our institution over the last two decades.

Keywords: BMI; Demographics; Osteoarthritis; Total knee replacement.

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Conflict of interest statement

Dr. Goudie, Mr. Robinson, Dr. Walmsley and Dr. Brenkel have nothing to disclose.

Figures

Fig. 1
Fig. 1
Percentage of patients in each age category in group one and group two
Fig. 2
Fig. 2
Proportion of patients in each BMI category in group one and group two
See this image and copyright information in PMC

References

    1. Nguyen US, Zhang Y, Zhu Y, Niu J, Zhang B, Felson DT. Increasing prevalence of knee pain and symptomatic knee osteoarthritis: survey and cohort data. Ann Intern Med. 2011;155(11):725–732. doi: 10.7326/0003-4819-155-11-201112060-00004. - DOI - PMC - PubMed
    1. Culliford DJ, Maskell J, Beard DJ, Murray DW, Price AJ, Arden NK. Temporal trends in hip and knee replacement in the United Kingdom: 1991 to 2006. J Bone Joint Surg Br. 2010;92(1):130–135. doi: 10.1302/0301-620X.92B1.22654. - DOI - PubMed
    1. Zicat B, Rorabeck CH, Bourne RB, Devane PA, Nott L. Total knee arthroplasty in the octogenarian. J Arthroplast. 1993;8(4):395–400. doi: 10.1016/S0883-5403(06)80038-0. - DOI - PubMed
    1. Felson DT, Naimark A, Anderson J, Kazis L, Castelli W, Meenan RF. The prevalence of knee osteoarthritis in the elderly. The Framingham osteoarthritis study. Arthritis Rheum. 1987;30(8):914–918. doi: 10.1002/art.1780300811. - DOI - PubMed
    1. Gill GS, Mills D, Joshi AB. Mortality following primary total knee arthroplasty. J Bone Joint Surg Am. 2003;85-A(3):432–435. doi: 10.2106/00004623-200303000-00005. - DOI - PubMed

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