23 Exploring rehabilitation following periacetabular osteotomy for acetabular dysplasia: a qualitative study on patients’ challenges, aspirations and expectations by May Arna Risberg, Joanne Kemp, Stig Storgaard Jakobsen, Julie Sandell Jacobsen, Inger Mechlenburg, Jeanette Reffstrup Christensen, Michael JM O´Brien, Milne Lachlan, Jitendra Balakumar