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CASE REPORTS
JOURNAL ARTICLE
Dislocation of a total hip arthroplasty: acute management in the ED.
American Journal of Emergency Medicine 2014 December
Dislocation is one of the most common complications of total hip arthroplasty (THA). Because of the growing number of patients undergoing THA annually and the immense number of patients who have previously undergone the procedure, familiarity with the diagnosis and treatment of this complication is critical. Although the most common direction of dislocation is posterior, anterior dislocations do occur, and correctly identifying the direction of dislocation is important before attempted closed reduction as both the reduction maneuvers used and the postoperative instructions afterward are distinct for an anterior as opposed to a posterior dislocation. We present the current case of an anterior hip dislocation that was unable to be closed reduced as the direction of dislocation was presumed to be posterior. Although a shoot through lateral is recommended in all cases to confirm the direction of dislocation, we highlight how the physician can differentiate the direction of dislocation based on the position of the foot and location of the lesser trochanter on the anteroposterior radiograph.
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