• Niels W L Schep, Jeroen De Haan, Gijs I T Iordens, Wim E Tuinebreijer, Maarten W G A Bronkhorst, Mark R De Vries, J Carel Goslings, S John Ham, Steven Rhemrev, Gert R Roukema, Inger B Schipper, Jan Bernard Sintenie, Hub G W M Van der Meulen, Tom P H Van Thiel, Arie B Van Vugt, Egbert J M M Verleisdonk, Jos P A M Vroemen, Philippe Wittich, Peter Patka, Esther M M Van Lieshout, and Dennis Den Hartog.
• Department of Surgery-Traumatology, Erasmus MC, University Medical Center Rotterdam, P,O, Box 2040, 3000 CA Rotterdam, The Netherlands.
• Bmc Musculoskel Dis. 2011 Jan 1;12:130.

BackgroundElbow dislocations can be classified as simple or complex. Simple dislocations are characterized by the absence of fractures, while complex dislocations are associated with fractures of the radial head, olecranon, or coronoid process. The majority of patients with these complex dislocations are treated with open reduction and internal fixation (ORIF), or arthroplasty in case of a non-reconstructable radial head fracture. If the elbow joint remains unstable after fracture fixation, a hinged elbow fixator can be applied. The fixator provides stability to the elbow joint, and allows for early mobilization. The latter may be important for preventing stiffness of the joint. The aim of this study is to determine the effect of early mobilization with a hinged external elbow fixator on clinical outcome in patients with complex elbow dislocations with residual instability following fracture fixation.Methods/DesignThe design of the study will be a multicenter prospective cohort study of 30 patients who have sustained a complex elbow dislocation and are treated with a hinged elbow fixator following fracture fixation because of residual instability. Early active motion exercises within the limits of pain will be started immediately after surgery under supervision of a physical therapist. Outcome will be evaluated at regular intervals over the subsequent 12 months. The primary outcome is the Quick Disabilities of the Arm, Shoulder, and Hand score. The secondary outcome measures are the Mayo Elbow Performance Index, Oxford Elbow Score, pain level at both sides, range of motion of the elbow joint at both sides, radiographic healing of the fractures and formation of periarticular ossifications, rate of secondary interventions and complications, and health-related quality of life (Short-Form 36).DiscussionThe outcome of this study will yield quantitative data on the functional outcome in patients with a complex elbow dislocation and who are treated with ORIF and additional stabilization with a hinged elbow fixator.Trial RegistrationThe trial is registered at the Netherlands Trial Register (NTR1996).

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