After preparation of the acetabulum using the correct surgical technique, the implant was mounted onto the impactor.Prior to cementing the implant, it was placed into the acetabulum to check for alignment.Upon lifting the implant back out, it was noted that two of the spacers had fallen off the implant and into the patient.One of the spacers were located but the other one was not found.A second implant was opened and implanted.There was not a significant delay as a result of the event.Attempts to obtain additional information have been made; however, none is available.
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