Details

Autor(en) / Beteiligte

• Streck, Laura E.
• Hanreich, Carola
• Cororaton, Agnes D.
• Boettner, Cosima S.
• Boettner, Friedrich

Titel

Predictors for activity following total and unicompartmental knee arthroplasty

Ist Teil von

• Archives of orthopaedic and trauma surgery, 2023-11, Vol.143 (11), p.6815-6820

Ort / Verlag

Berlin/Heidelberg: Springer Berlin Heidelberg

Erscheinungsjahr

2023

Link zum Volltext

Quelle

SpringerLink (Online service)

Beschreibungen/Notizen

• Background Functional demands of patients undergoing knee arthroplasty are increasing. However, it remains unclear which patient-specific factors have an impact on postoperative activity and whether there is a difference between total and unicompartmental knee arthroplasties (TKA/UKA). Materials and methods This retrospective study analyzed 1907 knees with TKA ( n  = 1746) or UKA ( n  = 161), implanted for primary osteoarthritis. Pain and activity (lower extremity activity scale, LEAS) were assessed 2 years after surgery. High activity was defined as LEAS ≥ 14. Cohorts were compared using Kruskal–Wallis or Pearson-Chi-square test. A generalized least squares model was used to predict LEAS scores between cohorts adjusted for age, sex, BMI, Charlson Comorbidity Index, ASA score, and preoperative LEAS. Result There was no difference in pain 2 years after surgery between UKA and TKA ( p  = 0.952). Preoperative LEAS was similar for UKA and TKA ( p  = 0.994), and both groups showed significant (p < 0.001 respectively) and similar improvements after surgery ( p  = 0.068). LEAS 2 years after surgery was 11.1 (SD 3.2) for TKA and 11.9 (SD 3.5) for the UKA group ( p  = 0.004). After adjusting for preoperative LEAS, age, sex, BMI, CCI and ASA, the difference was not significant ( p  = 0.225). Male sex, lower BMI, higher preoperative LEAS, and younger age were associated with higher postoperative LEAS ( p  < 0.001, respectively). Conclusion Patients can achieve a high level of activity following both TKA and UKA. While the postoperative activity level did not depend on the type of the procedure, younger age, male sex, lower BMI, and a higher preoperative activity level were associated with a higher postoperative activity level.