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Complications of articular lag screw fixation of femoral capital epiphyseal separations
Author(s) -
Miller A.,
Anderson T. J.
Publication year - 1993
Publication title -
journal of small animal practice
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.7
H-Index - 67
eISSN - 1748-5827
pISSN - 0022-4510
DOI - 10.1111/j.1748-5827.1993.tb02566.x
Subject(s) - medicine , articular surface , lag screw , femoral neck , surgery , femoral head , articular cartilage , slipped capital femoral epiphysis , articular capsule of the knee joint , fixation (population genetics) , abrasion (mechanical) , knee joint , internal fixation , osteoarthritis , osteoporosis , pathology , environmental health , engineering , mechanical engineering , population , alternative medicine
Four femoral capital epiphyseal separations in three immature dogs were repaired using an articular lag screw procedure. Two millimetre cortical screws were inserted from the articular surface across the fracture site in lag fashion. The screw heads were countersunk below the surface of the articular cartilage to prevent abrasion of the apposing articular surface. Marked osteolysis of the femoral neck was noted between four and eight weeks postoperatively in all cases, and excision of the femoral head and neck was carried out in two cases at six and eight weeks postoperatively. It is believed that the surgery failed because of iatrogenic vascular insult and the development of coxofemoral instability.