the purpose of this historical review is to summarize the work of paul of aegina and especially his contribution to the treatment of spine disorders and trauma. a major review of the literature was undertaken with emphasis on the treatise of paul himself as well as those of later scholars and historians. paul expanded the horizons of surgery of his time, using his talent to perform very complic...

Definition of Deformity Evaluation of Lower Limb Deformities Indications for Correction of Lower Limb Deformities Preoperative Planning Planning the Level of Osteotomy Other Factors in Determining the Level of the Osteotomy Determining the True Plane of the Deformity Translation Deformities . Angulation/Translation Deformities Multi-Apical Angular Deformities Joint Laxity Deformities of the Kne...

Objective Spinal deformity related to Parkinson’s disease (PD) is severe. Due to reported high complication rate, some authors reported that PD deformity with no neurological symptoms should not undergo surgery and also reported deep brain stimulation (DBS) should be considered instead of corrective surgery for their postural disorders. However, almost of previous reports did not consider spino...

The objective of this project is to using screwed yoke design instead existing welding the reducing product cycle and cost an Industrial Globe Valves starting from marketing, getting order customer, manufacturing supplying find bottlenecks suggest solutions optimize time reduce valve with customer satisfaction. We used welded valves perform main study.

Objectives: Skeletal-muscular disorders affect the biomechanics of the human body, especially the lower extremity, with a negative effect on the biomechanics of exercise. The main aim of this study was to evaluate the effect of fatigue on the kinematic variables of knee joints during countermovement jumps in female students of physical education with valgus knee deformity.  Methods: Fifte...

Leibniz wrote in 1679: “I consider that we need yet another kind of analysis, : : : which deals directly with position.” He called it “geometry of position”(geometria situs). The first convincing example of geometria situs was Euler’s solution to the bridges of Königsberg problem (1735). The first mathematical paper which mentions knots was written by A. T. Vandermonde in 1771: “Remarques sur l...

a three day old neonate was referred to our department with a problem of a sternal cleft. sternal clefts are often associated with a myriad of other abnormalities ranging from mild to severe. we present our experience with such a problem, and review the current literature concerning it.

conclusions application of pedicular screw in unstable upper and middle thoracic spine fractures is an effective method that can correct kyphotic deformity and anterolisthesis and improve neurologic deficit. background treatment of unstable upper and middle thoracic spine fractures remains controversial. there is no consensus regarding optimal treatment. objectives in this study, we evaluated t...

Short-period superconducting undulators are being developed at the Advanced Photon Source (APS). A 21period undulator prototype is being fabricated. Later, the short coil will be replaced with a longer one using the same cryostat. A high quality magnetic field with a phase error of 2 degrees rms was achieved in the prototype magnets due to accurate winding of the superconducting coils on the pr...

The deformity index is a new radiological measurement of the degree of deformity of the femoral head in unilateral Perthes' disease. Its values represent a continuous outcome measure of deformity incorporating changes in femoral epiphyseal height and width compared with the unaffected side. The sphericity of the femoral head in 30 radiographs (ten normal and 20 from patients with Perthes' disea...