We describe a patient who developed avascular necrosis of both humeral trochleae after combination chemotherapy for acute lymphoblastic leukaemia. This presented as progressive stiffness of both elbows with little pain. Radiography and MRI confirmed the presence of avascular necrosis at both sites. This region corresponds to a watershed between the medial and lateral vascular arcades which supp...

Adult cats were trained to use a forelimb to open a hinged door against resistance for a food reward. Normal cats performed the task with only toe or wrist motions. Cats with unilateral complete bulbar pyramid section showed persistent deficits in distal limb movements with toe fanning, wrist stiffness and pulling from elbow and shoulder. Partial medial or lateral pyramid lesions produced simil...

Monteggia fractures are rare in children, and subtle radial head dislocations, with minor plastic deformation of the ulna, may be missed in up to a third of cases. Complications of Monteggia fractures-dislocations include persistent radial head dislocation, forearm deformity, elbow stiffness, and nerve palsies at the time of presentation. An unusual case of median nerve palsy following elastic ...

Background: The aim of the study was to analyse compare between interlock nailing and dynamic compression plating in humerus diaphyseal fractures its functional surgical outcome. Methods: 2019 2022, patients were randomly divided into two groups with help computer-generated coded envelopes, group A (humerus treated plating) B nailing) 20 each group. Outcomes evaluated based on operative time, b...

Background: Intra-articular T- type or Y- type fractures of the distal end of the humerus are relatively rare, and consequently few surgeons will be able to attain extensive experience with the surgical treatment of these injuries. The current emphasis is on operative intervention with rigid internal fixation and early mobilization. Methods: In this prospective and retrospective study, we r...

HYPOTHESIS Using radiologic and clinical results, we studied the outcome of patients who underwent open reduction and plate osteosynthesis for comminuted olecranon fractures. MATERIALS AND METHODS We retrospectively studied 18 patients (5 women [27.8%] and 13 men [72.2%]; mean age, 41 years [range, 19-67 years]) with comminuted fractures of the olecranon who underwent locking-plate osteosynth...

Recent research in robotics focuses the attention on the control of compliant actuators to improve safety and to make the interaction with humans more natural. Lightweight construction, real elasticity directly integrated into the joint and control of joint compliance seem to play the most important role for improving safety in human-machine interaction. Humans are intrinsically elastic and the...

BACKGROUND A Supracondylar fracture of the humerus is the most common fracture in children around the elbow and is also called first decade injury. If not treated properly it may lead to disability due to elbow stiffness, and sequel of neuro-vascular injuries like Volkmann ischemic contracture etc. This study was undertaken to determine the outcome of close reduction and immobilization of the e...

Recent studies of motor coordination have emphasized the importance of the mechanical properties of muscle in both load compensation-and in the control of movement. Teleologically, different mechanical characteristics may be optimal for different tasks. For example, a skiier may wish to adjust the stiffness of his legs in accordance with the terrain and snow conditions. How, and to what extent ...

Arthrolysis and dynamic splinting have been used in the treatment of elbow contractures, but there is no standardised protocol for treatment of severe contractures with an arc of flexion < 30 degrees . We present our results of radical arthrolysis with twin incisions with the use of a monolateral hinged fixator to treat very severe extra-articular contracture of the elbow. This retrospective st...