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Splints and Casts -External immobilization is key for fracture healing and consists of splinting and casting. Materials Technique Upper Extremity Type of splint Common Indication Application Image Coaptation Humeral shaft # -elbow flexed at 90 Sugar tongue Distal radius/ulna # -elbow 90-Wrist 20 extension Posterior long arm  Distal humerus, radial head, olecranon #. -elbow 90-wrist 20 extension or neutral Volar splint Carpal bone # -wrist extended 20 Thumb spica 1st metacarpal #, scaphoid #. Skier’s thumb (UCL tear) -wrist 20…