This study examines the relationship between pneumatic tourniquet cuff size, occlusion pressure and the resulting pain. Two tourniquet cuff widths were used, a wide (14 cm) and a narrow cuff (7 cm). Twenty volunteers were divided into two groups for tourniquet application: a pressure group in which the tourniquet was inflated to a pressure equal to the systolic pressure + 100 mmHg, and a satura...

We studied the effect of deflating the laryngeal mask airway (LMA) cuff in situ on recorded respiratory tidal ventilation in 30 spontaneously breathing anaesthetized patients. Another 26 patients were studied in whom the LMA cuff was undisturbed. Deflation of the cuff to a pressure of 22 mm Hg (below an estimated arteriolar perfusion pressure of the pharyngeal mucosa), by removing approximately...

Background: It is unknown whether measuring endotracheal tube cuff pressure can accurately confirm tracheal intubation. Animal and human cadaveric studies show conflicting results. In anesthetized patients, we tested the hypothesis that the pressurevolume characteristics of the cuff located in the trachea would differ from that measured in the esophagus potentially making cuff pressure a useful...

Historically, many causes have been proposed for rotator cuff conditions. The most prevalent theory is that the rotator cuff tendons, especially the supraspinatus, make contact with the acromion and coracoacromial ligament, resulting in pain and eventual tearing of the tendon. However, more recent evidence suggests that this concept does not explain the changes in rotator cuff tendons with age....

The rotator cuff provides dynamic stability and is critical to normal shoulder function. Forces generated by the rotator cuff facilitate the motions involved in activities of daily living and the more demanding movements of athletics and manual labor. Injury and pathology of the rotator cuff are common and the unique anatomical and biomechanical characteristics of the cuff contribute to the eti...

We present our technique in managing high-grade bursal-sided rotator cuff tears. In this technique, the remaining intact cuff tissue is not sacrificed. The suture bridge technique is used to uniformly tension the torn tissue to the rotator cuff footprint. No knots are tied on the rotator cuff to minimize the tension on the cuff. The sutures are then anchored on the lateral cortex of the humerus...

Strangulation around cuff tissue is a possible cause of retear after rotator cuff repair. Therefore, tendon healing ideally requires changes in suture tension over the cuff tissue in accord with rotator cuff muscle activity. The authors present a type of fixation that mimics the mechanism of the Chinese finger trap. The devised knot-free tendon trap technique resembles the double-pulley-suture ...

Traditional methods of open and mini-open rotator cuff repairs have shown excellent results in shortand medium-term follow-up and remain viable methods of treating rotator cuff pathology. A trend toward the arthroscopic repair of rotator cuff tears continues, however, and will probably accelerate as the next generation of surgeons is trained in arthroscopic treatment methods. The purpose of thi...

background: the pneumatic tourniquet (pt) is routinely used in upper and lower limb operations by most orthopaedic surgeons. the silicone ring tourniquet (srt) was introduced in clinical practice the last decade. clinical as well comparative studies in volunteers concerning its safety and efficacy have been published. the aim of this study was to investigate the postoperative effect of the sili...

BACKGROUND A familial predisposition to the development of rotator cuff tearing has been previously reported. Very little information exists on the development of global tendon dysfunction in patients with rotator cuff tears. The purpose of the current study was to determine the incidence of global tendon dysfunction as well as the need for surgery for tendon dysfunction in patients with rotato...