Nijs, S.

fracture patient treatment humeral fractures humeral trial shoulder health group humeru outcome score surgery month study netherland point non-operative treatment hemiarthroplasty department measure disorder hartog disability comminuted quality den hartog j bone scale intervention musculoskeletal variable erasmus mc problem function randomized comminuted fractures eq -5d therapy non-operative outcome measures order center injury hospital humeral head ischemia hertel surgeon trauma radiographic healing baseline figure elbow humeral fracture erasmu consumption euroqol complication research result rotterdam analog scale orthop classification questionnaire level window analysis split multicenter randomized commons attribution license 65 years three-or center rotterdam guideline system item screener humeral head avascular necrosis humerus fractures