Aim of the study: In the presented study the question was evaluated if afte
r rotational knee arthroplasty - range of motion must be restored at discha
rge or if range of motion can also be restored with delay during the first
postoperative year. Method: A retrospective study was performed on 45 patie
nts. These had been rehabilitated with a specific therapeutical concept whi
ch did not include early restoration at discharge of complete range of moti
on as the key principle. Results: The mean range of motion was 60 degrees /-21 degrees at discharge. At the date of presentation 12 to 18 months post
operatively the mean range of motion had improved to 110 degrees +/-19 degr
ees. Conclusions: The presented study indicates that complete restoration o
f range of motion after rotational knee arthroplasty may not necessarily be
restored at discharge.