DOS 2016

DOS Kongressen 2016 ·

115

What predicts preoperative joint awareness in patients

undergoing Total Knee Arthroplasty?

Dana Li, Anders Troelsen, Lina Ingelsrud, Henrik Husted, Kirill Gromov

Department of Orthopaedic Surgery, Hvidovre Hospital

Background:

Low knee awareness, evaluated using Forgotten Joint Score

(FJS) has been suggested as the ultimate goal following Total Knee Arthroplasty

(TKA). FJS has been validated in several countries and in patients post-operation

but knowledge is sparse on preoperative levels of FJS in patients undergoing

primary TKA. By identifying factors that predict preoperative FJS levels, the cli-

nician could better prioritize most affected patients and with more precision

single out patients who would benefit most from TKA

Purpose / Aim of Study:

The aim of this study was to identify factors that

predict preoperative FJS levels and evaluate the correlation between preopera-

tive levels of FJS and Oxford Knee Score (OKS) in patients undergoing primary

TKA

Materials and Methods:

437 consecutive patients undergoing primary TKA

between April 2014 and April 2016 were included in the study. All patients

completed a validated Danish version of FJS and a validated Danish version of

OKS. Recorded patient demographics included age, gender and BMI. Kellgren-

Lawrence (K-L) grade, overall alignment and Joint Space Width (JSW) were

evaluated on preoperative x-rays. Multiple regression was run to predict FJS

from gender, age, BMI, K-L grade, alignment and JSW. Spearman’s rank order

testing was done between FJS and OKS

Findings / Results:

Gender, age and BMI significantly predicted preoperative

FJS (p < 0.005). OKS also significantly predicted preoperative FJS (p < 0.005)

and there was a strong positive correlation between FJS and OKS according to

the Spearman’s rank order test (p < 0.005)

Conclusions:

Age, gender and BMI significantly predicted FJS. In addition, FJS

has a strong positive correlation to OKS in patients undergoing primary TKA.

This information can be used for improved patient selection prior to primary

TKA

No conflicts of interest reported

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