This study reports the application of a novel method for quantitatively determining differences in the mechanical properties of healthy and torn rotator cuff tissues. In order to overcome problems of stress risers at the grip-tendon interface that can obscure mechanical measurements of small tendons, we conducted our investigation using dynamic shear analysis. Rotator cuff tendon specimens were...

BACKGROUND Treatment of partial thickness supraspinatus tendon tears is controversial with no clearly defined treatment algorithms based on severity of tears. This study aims to evaluate the relationship between depth of partial thickness tears and strain. METHODS Bursal-sided partial thickness tears were created at 1 mm increments in depth at the anterior portion of the supraspinatus tendon ...

We have undertaken an in vivo assessment of the tissue metabolism and cellular activity in torn tendons of the rotator cuff. Cellular oxygen consumption was measured in 13 patients undergoing mini-open repair of small, medium, large and massive full-thickness tears. Measurements were also taken from three control patients who were undergoing open stabilisation of the shoulder with grossly norma...

tion, are labelled as sprains ; cases involving different peri-articular and articular structures are also included. Theoretically sprain is considered to be a stretch and partial rupture of ligaments, tendons, or muscles, in, around and near a joint, producing the typical syndrome*. There are two views as to the mechanism of production of the syndrome, namely, the reflex theory, and the mechan...

The cases of sixty patients in whom a burst fracture of a thoracic or lumbar vertebral body had been treated with posterior instrumentation and arthrodesis less than two weeks after the injury were retrospectively reviewed. Thirty of the patients had an associated laminar fracture. Eleven of the thirty, all of whom had a lumbar fracture and a preoperative neurological deficit, were noted at ope...

IMAGES However, 48 hours after the operation, she had dyspnea along with subcutaneous emphysema on her shoulder (Fig. 1). Diagnostic bronchoscopy revealed an approximately 1.5-cm-sized vertical tracheal laceration above the carina with split thickness (Fig. 2). She was started on antibiotics, O2 inhalation, expectorants and non-per oral. The emphysema spontaneously resolved. The patient was dis...

There was a partial thickness laceration of the right cornea at the junction of the middle and lower thirds extending in an irregular horizontal line from side to side. From the depth of this laceration the cornea was split to the lower limbus and in the lamellar pocket so formed were embedded multiple fragments of a shattered corneal contact lens. At no point did this lamellar laceration penet...

Themes of Self-Laceration Towards a Modicum of Control in Nineteenth Century Russia as Expressed by Dostoevsky in The Brothers Karamazov The majority of the academic discourse surrounding Dostoevsky and his epic, The Brothers Karamazov, has been directed toward the philosophic and religious implications of his characters. Largely overlooked, however, is the theme of laceration. In the greater s...