“…Total hip arthroplasty (THA) is one of the most successful and cost-efficient procedures in medicine; however, complications may occur up to 22% [1] , [2] , [3] , [4] . Dislodgement of trial femoral heads and migration into the pelvis is a rarely reported complication with only 14 published cases [5] , [6] , [7] , [8] , [9] , [10] , [11] , [12] , [13] , [14] , [15] , [16] , [17] , [18] . Although a handful of reports are described in the literature, the true incidence of this complication is unknown.…”
Dislodgment of trial femoral heads and migration into the pelvis during total hip arthroplasty is a rarely reported complication with limited published cases. There are three primary mechanisms of femoral head separation: dislodgement during reduction attempt, disassociation from anterior dislocation while assessing anterior stability, and during dislocation after implant trialing. If the trial femoral migrates beyond the pelvic brim, it is safer to finish the total hip arthroplasty and address the retained object after repositioning or in a planned second procedure with a general surgeon. We recommend operative retrieval since long-term complications from retention or clinical results are lacking.
“…Total hip arthroplasty (THA) is one of the most successful and cost-efficient procedures in medicine; however, complications may occur up to 22% [1] , [2] , [3] , [4] . Dislodgement of trial femoral heads and migration into the pelvis is a rarely reported complication with only 14 published cases [5] , [6] , [7] , [8] , [9] , [10] , [11] , [12] , [13] , [14] , [15] , [16] , [17] , [18] . Although a handful of reports are described in the literature, the true incidence of this complication is unknown.…”
Dislodgment of trial femoral heads and migration into the pelvis during total hip arthroplasty is a rarely reported complication with limited published cases. There are three primary mechanisms of femoral head separation: dislodgement during reduction attempt, disassociation from anterior dislocation while assessing anterior stability, and during dislocation after implant trialing. If the trial femoral migrates beyond the pelvic brim, it is safer to finish the total hip arthroplasty and address the retained object after repositioning or in a planned second procedure with a general surgeon. We recommend operative retrieval since long-term complications from retention or clinical results are lacking.
“…Some authors advocate for the immediate intraoperative retrieval of the dislocated trial heads through hip approach and have developed special intraoperative techniques that can be useful in that particular situation 5 6 13 14. Although simple, these techniques still pose an additional risk of extended surgery and are conducted without the consent of the patient.…”
SUMMARYDislocation of the trial femoral head is a rare and unpleasant event that can compromise the success of the total hip arthroplasty. A 62-year-old Caucasian woman with osteoarthritis was admitted to our Department and underwent an elective total hip arthroplasty. While performing the dislocation manoeuver the trial femoral head dissociated from the taper in the superior and anterior direction in the soft tissue and could not be retrieved immediately. The operation was then executed and finished in an ordinary manner. Three months after discharge from our department patient presented with the pain in the hip and groin and periprosthetic joint infection was diagnosed. The successful second operation for the retrieval of the dislocated trial femoral head was conducted through ilioinguinal approach. In this paper we reviewed the published literature and developed the algorithm for the decision-making while dealing with the dislocated and lost trial femoral head.
BACKGROUND
“…9,10,14,18,19 The trial head can be left in the pelvis if not causing any obstructive symptoms. 12 However, retrieval may be necessary due to the risk of later complications and infection.…”
Total hip arthroplasty is a life changing procedure providing a significant improvement in the quality of life for those receiving treatment. An 81-year-old male with severe right sided hip osteoarthritis underwent uncemented total hiparthroplasty. Intraoperatively the 32mm trial head dislodged from the trial stem over the anterior rim of the acetabulum relocating to within the pelvic cavity. Time efficient retrieval was performed during primary surgery through a mini-incision at the iliac crest.
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