The effect of preoperative symptom severity on functional outcome of total knee replacement—patients with the lowest preoperative scores achieve the lowest marks

Predictors and outcomes of lateral release in total knee arthroplasty: A cohort study of 1859 knees

“…The long term outcomes of AKS Knee Score, Functional Score and Pain were the same for LR and non-LR patients, despite the worse preoperative scores in the LR group. This contradicts previous work showing that poorer preoperative Knee Scores are associated with worse post-operative outcomes [18]. The only statistically significant difference between the two groups was the reduced range of maximal active flexion and loss of active extension in the LR group.…”

Functionality and Safety of an Ultra-Congruent Rotating Platform Knee Prosthesis at 5.6 Years: More than 5- Year Follow-Up of the e.motion® UC-TKA

“…The differences measured in ADL scores between the e.motion ® and the LCS prostheses could be explained by differences in the prosthetic design but also the patients´ pre-operative characteristics. For example, patients with lower preoperative scores for knee function tend to have lower postoperative scores [18]. Unfortunately, the influence of this factor could not be assessed because the KOOS was only evaluated at follow-up in both studies.…”

The use of the Oxford hip and knee scores

“…It has become apparent that one of the biggest determinants of outcome after a joint replacement is the pre-operative score. 11,18,22 If the treatment of different cohorts of patients is being studied in a non-randomised setting, it is essential that both the pre-operative and post-operative scores are obtained. The change in the score should be analysed in addition to the post-operative score.…”