2119988 HOOS-PS Hip disability and Osteoarthritis Outcome Score-Physical Function Short-form 45 2119990 HOOS-PS HOOS-Physical Function Shortform 8 2119989 HOOS-PS Hip Disability and Osteoarthritis Outcome Score 6 2119985 HOOS-PS hip-specific physical function score 2 2119986 HOOS-PS higher PROMs for single-stage revision THA 1 2119987 HOOS-PS HOOS physical function 1