3087267 mTHA manual THA 23 3087266 mTHA manual total hip arthroplasty 12 3087269 mTHA manual unassisted technique 1 3087268 mTHA manual, fluoroscopic-assisted technique 1 3087271 mTHA manual, fluoroscopy-assisted THA 1 3087270 mTHA methods:manual total hip arthroplasty 1 3087272 mTHA score-matched manual primary THA 1