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Orthopaedic Proceedings
Vol. 100-B, Issue SUPP_7 | Pages 3 - 3
1 May 2018
Evans J Patel N Cooper T Conboy V
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Clavicle fractures account for 44–66% of shoulder fractures. Evaluating degree of shortening is important when deciding between operative and non-operative treatment. The clavicle of a skeleton was marked at midpoint and junctions of the thirds along its superior surface. Antero-posterior (AP) and 30-degree upshot radiographs were taken. Images were analysed measuring distance between markers. In both AP and upshot images there were apparent discrepancies between lengths of each third and half. The main differences in apparent length appear in the measurement of the thirds of the clavicle. The AP made the medial third shorter compared to the middle and lateral third, whereas the upshot appeared to make the medial third shorter than the middle third with the lateral third shorter again. This study supports the theory that there is parallax error created by the shape of the clavicle. Middle third fractures account for 80% of fractures and both our AP and upshot images make the middle third appear longer in relation to lateral and medial thirds. This leads us to believe that shortening may be overestimated when measured using AP or upshot images. This leads us to advise caution when using WebPacs tools to measure shortening in clinical decision making.


Orthopaedic Proceedings
Vol. 96-B, Issue SUPP_1 | Pages 5 - 5
1 Jan 2014
Abouel-Enin S Blakey C Cooper T Madan S
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We report the radiological outcomes, and short-term clinical results, of 47 periacetabular osteotomies undertaken through both the traditional bikini incision, and a minimally invasive approach.

47 periacetabular osteotomies have been undertaken in 45 patients, by the senior author, between 2005 and 2013. There were 10 male and 35 female patients. The mean age at operation was 28.2 years. Since 2010 surgery has been performed through a 7-cm skin incision (31 hips), an incision coined as minimally invasive by Søballe et al when they described their trans-sartorial approach for acetabular surgery. Clinical data was collected prospectively; primary outcome measures included the young adult hip score and the hip disability and osteoarthritis outcome score. Pre- and post-operative radiographs were analysed for achieved acetabular reorientation.

At the time of follow-up the median young adult hip score had improved significantly from pre-operative values. Mean scores were 35.4 pre-operatively, and 64.25 post-operatively. Improvement in the anterior and lateral centre-edge angle was 32 and 32.9 degrees respectively through a traditional incision, and 27.1 and 30 degrees through the minimally invasive approach (p>0.05). No major complications occurred in any patient. Four patients complained of lateral cutaneous nerve hypoaesthesia, in two patients there was delayed union of the pubic osteotomy and in one non-union. Two patients have gone on to total hip replacement.

The minimally invasive approach is safe and allows for accurate reorientation of the acetabulum whilst minimizing tissue damage. The scar is cosmetically appealing to patients, especially the predominantly female group treated with this condition. We did not see the evidence of reduced surgical stay that has been reported by other groups utilizing a minimally invasive approach.

Level of evidence: II