«Terrible triad» of the shoulder. Biomechanicalsemi-natural modeling andjustificationto rotator cuff restoration

The aim of this study: was determine the force of tension and deformation of axillary nerve in rupture rotator cuff and paresis of deltoid muscle of the shoulder joint. Material and methods: Semi-natural modelling based on the axial scans spiral computed tomography of the intact shoulder joint was performed to determine the degree of traction load on the axillary nerve with distal displacement shoulder head and tendon rupture which paresis of the deltoid muscle. Result: The values of deformations for axillary nerve being at the limit of tissue strength at distal displacement of humeral head of the model by 50 %, progressively increased with increasing distal displacement of humeral head to 100 % of its diameter, reaching values 1.7 times higher than the strength nervous tissue. Conclusion: The progressive changes occurring in the axillary nerve under the action of traction loads, and as a consequence of its ischemia, over time can lead not only to demyelination, but also to the defeat of the axons themselves atrophy of its fibers. In turn, deltoid muscle atrophy increases the traction load on the affected axillary nerve, which forms a vicious circle. The only possible option to "break" the vicious circle is restore the stabilizing structures damaged during the injury, among which one of the most important is the tendons of the rotator cuff of the shoulder. Surgical restoration of the integrity rotator cuff of the shoulder reduces the traction load acting on the axillary nerve, which in turn significantly improves the conditions for reinnervation of the deltoid muscle.

An Unusual Terrible Triad Variant Associated with an Essex-Lopresti Injury

Essex-Lopresti injuries and terrible triad injuries of the elbow are rare injuries that typically result from high-energy trauma such as falling from a height or a motor vehicle collision. However, the combination of an Essex-Lopresti injury and terrible triad injury is unique and poses a significant challenge for treatment as these injuries are independently associated with poor functional outcomes if they are not acutely diagnosed. We describe a case of a 19-year-old who presented with an unusual variant of a terrible triad injury associated with an Essex-Lopresti injury. The patient had a distal radioulnar joint (DRUJ) and elbow dislocation, a radial head and coronoid process fracture, and a distal radius fracture. Almost a reverse Essex-Lopresti, this injury was successfully managed with open reduction and repair of the distal radius, radial head, and damaged ligaments in the elbow, along with an internal joint stabilizer (IJS).

3 Months Old Post-Traumatic Stiff Elbow Following Terrible Triad Injury - A Case Report and Review of Literature

Stiff elbow is a common problem associated with terrible triad injuries which if not managed properly can lead to significant functional limitations. Here we are describing a case of post-traumatic stiff elbow following terrible triad who presented to us after taking native treatment primarily. He was treated with open arthrolysis and prophylactic ulnar nerve decompression along with rigorous physiotherapy including dynamic splinting with hinge elbow bracing. The results were satisfactory in achieving a functional range of movement according to the patient's vocational need. This study aims to present the prompt management of post-traumatic stiff elbow case along with functional improvement postoperatively in a decisive way. Terrible triad injuries are a group of the rare and severely unstable fracturedislocations following which the chance of recurrent instability, elbow stiffness, and functional limitations increases coherently.1 To perform normal daily activities, painless motion at the elbow joint is very much necessary and critical. Following a traumatic insult, a cascade of events can lead to a decrease in the normal arc of motion and also cause stiffness of the elbow joint.2 Over the last two decades, there has been a lot of speculation revolving around the management of terrible triad injuries.3 Van Riet et al had documented that the majority of the terrible triad injuries need to be managed surgically whereas the non-operative treatment is reserved for a few selected cases. 4 The ones which were not managed adequately had higher chances of turning up into stiff elbow. Post-traumatic elbow stiffness is one of the dreaded complications following terrible triad injuries.3 The aim of managing the case of post-traumatic stiff elbow is to have a painless, near-normal range of motion which can help the patient to do daily activities by himself. We are presenting a case of post-traumatic type- 4 stiff elbow following native bandage treatment and how prompt management has led to satisfactory results.