Indications Shoulder dislocation after closed reduction Humerus fractures after splinting Acromioclavicular joint separation Forearm or elbow injuries after splinting (a sling without the addition of the swathe is adequate) Contraindications None Complications Ulnar nerve compression may result if the sling is too short, allowing the wrist to hang out of the sling Equipment Sling Elastic wrap, 10 cm (4 inch) wide A commercial shoulder immobilizer is an alternative if available.