El-Nasri B Ahmed

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Although the causes and progression of adolescent idiopathic scoliosis (AIS) are still unclear, a recent extensive review has indicated a number of possible aetiological factors. Previous investigations, employing gait measurements, have indicated asymmetries in the ground reaction forces and suggest a relationship between these asymmetries, neurological(More)
BACKGROUND CONTEXT Research employing gait measurements indicate asymmetries in ground reaction forces and suggest relationships between these asymmetries, neurological dysfunction and spinal deformity. Although, studies have documented the use of centre of pressure (CoP) and net joint moments in gait assessment and have assessed centre of mass (CoM)-CoP(More)
STUDY DESIGN A prospective review of 24 patients with late-onset idiopathic scoliosis. OBJECTIVES.: To compare curve flexibility measured using supine bending radiography and traction radiography; to examine the correlation of each technique with postoperative correction; and to determine the influence of each technique on the decision to perform(More)
Although various factors have been attributed to the etiology of idiopathic scoliosis, studies have indicated that the kinematic differences in the spine, pelvis and lower limb may contribute to the causation and progression of idiopathic scoliosis. The aim of this investigation was to identify asymmetries in lower limb kinematics and pelvic and back(More)
There are assumptions that leg length discrepancy (LLD) may cause low back pain by creating pelvis obliquity and lumbar scoliosis. Although individuals with LLD develop compensatory movements in the lower limbs and pelvis during walking, few investigations have attempted to identify kinematic variables of the upper body. This study aims to gain an(More)
An attempt has been made to simplify the measurement of composite movement involving abnormal rotation in scoliosis, which is considered to have an important role in the diagnosis and treatment of the condition. Analysis of three-dimensional movement provides pertinent information concerning the morphological description of scoliotic deformities. The(More)
We report the prevalence and incidence of methicillin-resistant Staphylococcus aureus (MRSA) colonisation during the patient journey for patients admitted to orthopaedic and trauma wards. Patients were swabbed for MRSA colonisation on admission, transfer, and discharge from hospital. Elective patients undergoing major joint surgery were also swabbed at a(More)
Previous research employing biomechanical measurement has demonstrated asymmetries in kinematics and kinetics. Similar asymmetries have been reported from anthropometric studies. These findings suggest that asymmetry may play an important aetiological role in adolescent idiopathic scoliosis (AIS). The present study is a part of a wider comprehensive(More)
Sublaminar wiring with posterior instrumentation is one of the methods used when long fusions involving 10-12 thoracolumbar levels are required. Classically, wires are used at every consecutive level to make the construct as rigid as possible, although complications like dural tears, cerebrospinal fluid leak, and neurological deficit have been reported(More)
O1 The reliability of the three dimensional spinal modeling of patients with adolescent idiopathic scoliosis using EOS system Aria Bagheri, Xue-Cheng Liu, Channing Tassone, John Thometz, Amie Chaloupka, Sergey Tarima Division of Biostatistics, Medical College of Wisconsin Milwaukee, WI, USA; Department of Orthopaedic Surgery Milwaukee, WI, USA;(More)