A New Minimally Invasive Transsartorial Approach for Periacetabular Osteotomy

Troelsen, A.; Elmengaard, B.; Søballe, K.
March 2008
Journal of Bone & Joint Surgery, American Volume;Mar2008, Vol. 90-A Issue 3, p493
Academic Journal
Background: A new minimally invasive transsartorial approach for the Bernese periacetabular osteotomy was developed. We investigated whether this technique was safe and successful with regard to minimizing tissue trauma and, more importantly, whether it was possible to obtain optimal reorientation of the acetabulum. Methods: Our experience with this approach was retrospectively assessed by means of database inquiry and the evaluation of radiographs. We assessed ninety-four procedures performed between April 2003 and August 2005 to determine perioperative and early postoperative outcome measures, the achieved acetabular reorientation, and hip joint survival. Results: The mean duration of surgery was 73.1 minutes, the median perioperative blood loss was 250 mL, and the mean reduction in the hemoglobin level was 33 g/L. Blood transfusion was required following 3% of the procedures. No injuries to the great vessels or nerves, arterial thromboses, unintended extension of the osteotomy, or deep infections occurred. The postoperative acetabular reorientation was assessed by measuring the center-edge and acetabular index angles, the medians of which were 34° and 3°, respectively. With total hip arthroplasty as the end point, the hip joint survival rate was estimated to be 98% at 4.3 years. Conclusions: Osteotomy with use of this minimally invasive transsartorial approach appears to be a safe, relatively short surgical procedure associated with a relatively small amount of blood loss and minimal transfusion requirements. Optimal acetabular reorientation can be achieved with this technique. Level of Evidence: Therapeutic Level IV. See Instructions to Authors for a complete description of levels of evidence.


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