Abstract: ObjectiveTo investigate the characteristics of knee stiffness and the results of rehabilitation after the fractures of distal femur （DF）, tibial plateau （TP） or patella （PF）. Methods70 cases with knee stiffness after DF, TP or PF were analyzed retrospectively. ResultsNo significant difference was observed in passive range of motion (PROM) among three groups (F=1.671，P=0.196) before rehabilitation. The differences were significantly different (F=19.264, P=0.000) 8 weeks after rehabilitation. Further LSD analysis revealed that there was significant difference between DF and TP (P=0.000) as well as DF and PF (P=0.000), but no significant difference was observed between TP and PF (P=0.114). ConclusionThe outcome of rehabilitation is associated with the locations of fracture, and the distal femoral fractures is the worst.

Key words: periarticular fracture, knee stiffness, femur, tibia, patella, rehabilitation