In this article, the anti-plane deformation of an orthotropic sector with multiple defects is studied analytically. The solution of a Volterra-type screw dislocation problem in a sector is first obtained by means of a finite Fourier cosine transform. The closed form solution is then derived for displacement and stress fields over the sector domain. Next, the distributed dislocation method is em...

Mok Ka Leung, FHKCEM Kan Pui Gay, FHKCEM Wong Yau Tak, FHKCEM We describe the ultrasound evaluation technique and sonographic findings of a case of anterior shoulder dislocation. The sonographic features of anterior shoulder dislocation include: "sign of widening of subacromial space", "sign of disappearance of humeral head", "artery/vessel sign", "humeral head below coracoid process sign" and ...

Dislocation of the sternoclavicular joint is a rare injury and typically requires high-energy forces applied through the joint. Initial treatment is dependent on the direction of dislocation, with acute reduction indicated for posterior dislocations presenting with signs of tracheal, esophageal, or neurovascular compression. Although most patients do well with conservative treatment after the i...

It is accepted that a traumatic hip dislocation is a surgical emergency, this holds for the uncommon dislocation of the hip with femoral neck fracture however the surgical dilemma involves head salvage or replacement. This case report describes the method and technique for stabilisation of the rare and challenging isolated posterior hip dislocation with an ipsilateral femoral neck fracture. A 3...

Two cases of the severe fracture-dislocation of the cervical spine with tetraplegia have been treated successfully with a new technique. This technique consists of anterior vertebral body fusion with a tibia span added to the Cloward's method. This procedure permitted substantial removal of ruptured disks and bone fragments, effectivelly strengthened the spine weakened by fracture, and also ena...

Sternoclavicular dislocations account for less than 5% of all dislocations of the scapular belt. Most cases of anterior dislocation of the sternoclavicular joint do not present symptoms. However, some patients may develop chronic anterior instability and remain symptomatic, and surgical treatment is indicated in these cases. There is a scarcity of reports in the literature relating to reconstru...

PURPOSE Many different surgical techniques for the treatment of chronic recurrent temporomandibular joint (TMJ) dislocation have been described. This article discusses a technique of autologous blood injection to the TMJ for treatment of chronic recurrent TMJ dislocation. MATERIALS AND METHODS Twenty-five patients diagnosed with chronic recurrent TMJ dislocation were treated by bilateral inje...

background: prevalence of recurrent shoulder dislocation in patients taking tramadol has not been studiedyet so, this study aims to study the recurrent shoulder dislocation following tramadol induced seizure. methods: in this cross-sectional study, 205 patients with recurrent shoulder dislocation complaints (2 or more) referred to shafa orthopedic and iranmehr hospitals tehran, iran, from octob...

The retained guidewire technique has been proposed as an alternative method for stabilizing the left ventricular lead in patients who experience repetitive intraoperative dislocation. This article concerns three patients, out of a total of 185 (1.6%) undergoing cardiac resynchronization therapy, who had to be treated using the retained guidewire technique because of demonstrable recurrent lead ...