Participants
knee arthroplasty, obesity, cachexia, Trauma
OBESITY, SECONDARY
Participants were recruited preoperatively at the Department of Orthopaedics at the Rostock University Medical Center and the Clinic for Orthopaedics, Trauma and Hand Surgery at the Klinikum Südstadt Rostock. Only males and females within the age range of 55 to 70 years, requiring unilateral total hip or knee arthroplasty due to primary or secondary OA were included in the study. Furthermore, only participants who were able to participate in the outpatient therapy during the first postoperative year as well as the required follow-up examinations were included. Patients with cachexia or obesity (body mass index (BMI) < 19 kg/m