Hung, Nguyen Ngoc Patellar dislocation due to iatrogenic quadriceps fibrosis: results of operative treatment in 54 cases. [electronic resource] - Journal of children's orthopaedics Feb 2014 - 49-59 p. digital Publication Type: Journal Article ISSN: 1863-2521 Standard No.: 10.1007/s11832-014-0564-5 doi