The superior shoulder suspensory complex (SSSC) is a bony and soft tissue ring created by the glenoid, coracoid, coracoclavicular ligament, distal clavicle, acromioclavicular ligament and the acromion. 4 Biomechanically, this complex serves an important function by providing a stable link between the upper extremity and the axial skeleton. Each of its components has its own individual role and provides multiple points of attachment for a variety of musculotendinous and ligamentous structures. Single disruptions of this ring, such as an isolated clavicle fracture, are common and do not violate its structural integrity. Double disruptions, though infrequent, can destabilise the ring. The resulting deformity may lead to adverse healing and long-term functional consequences, such as weakness and discomfort, subacromial impingement and degenerative joint disease. 5,15 Even though non-operative treatment of floating shoulder injuries, especially those with minimal displacement, can achieve satisfactory results, 2 surgical correction of deformity can positively impact the functional outcome. 7,8,11,16 We report an unusual case of a patient who sustained a scapular neck fracture, an open acromion fracture and an acromioclavicular joint disruption. To our knowledge, this is the first report of an open segmental injury to the SSSC. Our patient was informed that data concerning the case would be submitted for publication.
Case reportA 52-year-old, otherwise healthy, right-hand dominant man, who was involved in a motorcycle accident, presented with complaints of pain in the left shoulder. A detailed neurovascular examination revealed a normal left upper extremity and neck. However, a 12-cm stellate wound existed along the cephalad aspect of his superolateral shoulder. The acromion and distal clavicle were evident through the defect.A radiographic imaging revealed left-sided second and third rib fractures, along with a small left apical pneumothorax. The skeletal injuries included a displaced comminuted acromion fracture consisting of anterior and posterior segments, an acromioclavicular joint dislocation and a displaced scapular neck fracture (Fig. 1).Initial care in the emergency room consisted of local wound care, antibiotic and tetanus toxoid administration as well as placement of a left thoracostomy tube. Within 4 h of presentation, the patient underwent a formal irrigation and debridement (I&D) and surgical stabilisation of his orthopaedic injuries.Intra-operative assessment of the injury confirmed a displaced segmental acromion fracture with a concomitant acromioclavicular joint disruption. The anterior and middle heads of the deltoid muscle were avulsed from their acromial insertion sites. In addition, the supraspinatus tendon demonstrated a small partial-thickness tear near its insertion. After a thorough I&D, the supraspinatus tendon was repaired first using a 2/0 FiberWire suture. The wound was extended medially along the inferior border of the clavicle for approximately 3 cm to gain additional exposure. The SSSC w...