Recovery And The Use Of Postoperative Physical Therapy After Total Hip Or Knee Replacement
Abstract Background: To investigate the relation between recovery and postoperative physical therapy (PT) usage, including the presence of comorbidities, 6 months after total hip or knee arthroplasties (THA/TKA). Methods: Multicenter, observational study in primary THA/TKA patients who completed preoperative and 6 months postoperative assessments. The assessments included questions on PT use (yes/no and duration; long term use defined as ≥12 weeks), comorbidities (musculoskeletal, non-musculoskeletal, sensory comorbidities). Recovery was assessed with the HOOS/KOOS on all 5 subdomains. Logistic regression with long term PT as outcome was performed adjusted for confounding including an interaction term (comorbidity*HOOS/KOOS-subdomain).Results: In total, 1289 THA and 1333 TKA patients were included, of whom 95% received postoperative PT, 56% and 67% received postoperative PT ≥12 weeks respectively. In both THA and TKA group, less improvement on all HOOS/KOOS domain scores was associated with ≥12 weeks of postoperative PT (range Odds Ratios 0.97-0.99). In the THA group the impact of recovery was smaller in patient with comorbidities as non- musculoskeletal comorbidities modified all associations between recovery and postoperative PT duration (Odds Ratios range 1.01-1.05). Musculoskeletal comorbidities modified the associations between Function-in-Daily-Living-and Sport-and-recreation recovery and postoperative PT. Sensory comorbidities only had an effect on Sport-and-recreation recovery and postoperative PT. In the TKA group comorbidity did not modify the associations. Conclusion: Worse recovery was associated with longer duration of postoperative PT suggesting that PT provision is in line with patients’ needs. The impact of physical recovery on the use of long-term postoperative PT was smaller in THA patients with comorbidities. Trial registration: Registered in the Dutch Trial Registry on March 13, 2012. TRIAL ID NTR3348; registration number: P12.047. https://www.trialregister.nl/trial/3197.