The rotational alignment tヲfthe lovver limbs of 24 patients who developed r巴currentdislocation of the patella were measured by means of computed axial tomography. The femoral anteversion and the external rotation of the knee joint of these patients respectively showed 31.9土15.2° and 9.2土6.8° on the average. These figures were significantly larger than those of the control. The average external ...

background:  the glenohumeral joint becomes dislocated more than any other major joint because it maintains a wide range of motion and its stability is inherently weak. the most common complication following acute initial shoulder dislocation is recurrent dislocation or chronic instability. imbalance of strength and range of motion in individuals with anterior dislocation can be a contributing ...

stable crystalline phosphorus ylides are obtained in excellent yields from the 1:1:1 addition reactionbetween hydantoins or thiohydantoins and dialkyl acetylenedicarboxylates in the presence oftriphenylphosphine. these phosphoranes undergo smooth intramolecular wittig reaction followedby an electrocyclic ring opening to produce dialkyl (e)-2-(2,5-dihydro-5,5-diaryl-2-thioxo-1h-imidazol-4-yl)fum...

intervertebral joints, with contusion of the cord by the neural arch at the moment of injury, and that spontaneous reduction accounted for the subsequent normal radiographic appearances. This theory was criticised by Cramer and McGowan (1944), and Barnes (1948) showed that a posterior dislocation in flexion that was capable of spontaneous reduction did not produce sufficient narrowing of the sp...

Purpose Patellofemoral instability is a common cause of anterior knee pain in adolescents and young adults. Most normal and pathological values for diagnosing patellofemoral instability are based on Western literature. We conducted this radiological study to determine normal values for different patellofemoral parameters in a Korean population and to evaluate their usefulness in diagnosis. Ma...

Object: Sacroiliac dislocation frequently poses a complex problem for the surgical management and stabilization because of the anatomical and biomechanical factors of this transition zone between the spine and pelvis. The authors had used a modification of the Galveston technique, originally described by Allen and Ferguson in the treatment of scoliosis, to achieve rigid spinal-pelvic fixation i...

In this report, three cases with pseudoexfoliation (PEX) and advanced age with spontaneous intraocular lens (IOL) and capsule tension ring (CTR) dislocation were presented. All of our cases experienced progressive vision loss without an episode of strenuous physical activity, trauma, or any other ocular disease. Spontaneous dislocation was observed 2.5 to 8 years after uneventful phacosurgery. ...

Four patients with lumbosacral fracture-dislocation are presented. The common mechanism of injury was hyperflexion with compression. A rotational element may be implicated in single facet dislocation. Although lumbosacral fracture-dislocations can be managed conservatively, the best method of treatment is open reduction and bone grafting as soon after injury as possible. Only this will ensure c...

Recurrent dislocation is not common in small joints. This report presents a recurrent dislocation of the proximal interphalangeal joint of the ring finger in a 23-years-old man. Recurrent dislocation was addressed successfully by repairing the avulsed volar plate to the base of the middle phalanx, followed by 6 weeks of splint immobilization.

Injuries to the wrist often present problems of accurate diagnosis and effective treatment (MacAusland 1944, B#{246}hler1956, Cave 1958, Aitken and Nalebuff 1960). Those associated with fractures are usually demonstrated by proper radiographs, but even these injuries may be missed (Soto-Hall and Haldeman 1941, Speed 1950). Dislocation of the scaphoid bone may occur after apparently successful r...