• O Weber, C Burger, K Kabir, D C Wirtz, and H Goost.
• Klinik für Orthopädie und Unfallchirurgie, Universitätsklinikum Bonn, Sigmund-Freud-Str. 25, 53105 , Bonn. oliver.weber@ukb.uni-bonn.de
• Unfallchirurg. 2009 Sep 1; 112 (9): 778784778-84.

Aim Of StudyInadequate treatment of distal intra-articular fractures of the humerus results in painful restriction of movement or malarticulation. Especially in geriatric patients with osteoporosis, stable osteosynthesis can be difficult. Primary total endoprosthetic replacement of the cubital joint could offer an alternative.Material And MethodsIn 12 patients with a distal intra-articular fracture of the humerus a cemented semi-constrained Coonrad-Morrey prosthesis was implanted. Patient were followed-up after an average of 13 months and assessed according to the Mayo score.ResultsIn 6 patients additional computerized tomography was carried out. Minimally invasive Kirschner wire osteosynthesis resulted in immediate postoperative loss of correction due to osteoporosis. As with the external distraction-compression apparatus the ulnar pinholes can form a predetermined breaking point and fixation in a long-arm cast is recommended. The mean Mayo score was 90.5 points and mean range of motion in extension/flexion was 84.5 degrees.ConclusionIn elderly patients primary endoprosthetic treatment of a distal intra-articular fracture of the humerus with a semi-constrained cemented prosthesis may offer an alternative to osteosynthesis thus enabling creation of a mobile, painless and stable cubital joint.

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