Late Medial Migration of Lag Screw After Gamma3 Nailing Threatening the Internal Iliac Vessels: A Case Report.

CASE: A 77-year-old woman underwent Gamma3 Nail (Stryker) for an extracapsular fracture of the neck of femur on the left side. Eight months later, the lag screw had migrated medially into the pelvis and was in contact with the internal iliac vessels. After a multidisciplinary team meeting, embolization of the internal iliac artery was carried out prophylactically before the removal of screw and conversion to a total hip replacement. CONCLUSION: Although there are increasing number of case reports on late medial migration of lag screw, medial migration into pelvis with vascular complication is a very rare complication with 1 case report in the literature. The authors would like to make the orthopaedic community aware of this rare but potentially fatal complication and present the option for successful management.