Wai Weng Yoon

Wai Weng Yoon
Nottingham University Hospitals NHS Trust · Centre for Spinal studies

BSc MBBS FRCS Tr&Orth

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29
Publications
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232
Citations

Publications

Publications (29)
Article
Full-text available
In all levels of disc herniations the absolute surgical indications include deteriorating neurological deficits with myelopathy or cauda equina syndrome. However, this review summarized the relative indications for surgery in each level. In cervical disc herniation (CDH), the indications for surgery consist of six months of persisting symptoms, not...
Article
Full-text available
Background: The aim of this study was to examine the correlation between the risk of increasing kyphosis as well as collapse of the osteoporotic vertebral body fractures and the intensity of the bone edema in magnetic resonance imaging (MRI) scans. Inclusion criteria included the following: age >18 years and osteoporotic vertebral body fracture gr...
Article
Aims Significant correction of an adolescent idiopathic scoliosis in the coronal plane through a posterior approach is associated with hypokyphosis. Factors such as the magnitude of the preoperative coronal curve, the use of hooks, number of levels fused, preoperative kyphosis, screw density, and rod type have all been implicated. Maintaining the n...
Conference Paper
Objective Stent-assisted coil embolization of intracranial wide-necked aneurysm requires long-term postoperative antiplatelet therapy to prevent in-stent thrombosis.This study aimed to demonstrate results of temporary stent placement for coiling wide necked small intracranial aneurysms, which eliminated need for antiplatelet agents, and to discuss...
Article
Full-text available
Purpose: To investigate whether pre-operative magnetic resonance imaging (MRI) of the lumbar multifidus muscle (LMM) would predict clinical outcomes following lumbar spinal decompression for symptomatic spinal stenosis. Methods: A prospective cohort of patients with symptomatic neurogenic claudication, documented spinal stenosis on pre-operative...
Article
Background: Growth guidance sliding treatment devices, such as Shilla (Medtronic, Minneapolis, MN USA) or LSZ-4D (CONMET, Moscow, Russia), used for the treatment of scoliosis in children who have high growth potential have unlocked fixtures that allow rods to slide during growth of the spine, which avoids periodical extensions. However, the probab...
Article
Full-text available
Background: Our aim was to determine whether patients derived benefit from removal of pedicle screw instrumentation for axial pain without other cause using our surgical technique and patient selection. A secondary aim was to investigate factors that were associated with poorer outcomes for this procedure as well as complication rate in this cohor...
Article
Full-text available
Purpose This study investigated whether ultrasound (U/S) is an alternative to radiography when measuring magnetically controlled growth rod (MCGR) length in order to reduce radiation exposure. Distractible spinal growth rods are the gold standard when treating early-onset scoliosis (EOS). Methods This was a prospective series. Patients were alr...
Article
Introduction Decompressive surgery for symptomatic lumbar spinal stenosis is associated with good outcomes provided that appropriate patient selection is undertaken, which has proven critical (Aalto et al 2006). It has previously been proposed that the MRI appearance of multifidus is correlated to leg and back pain symptoms (Ali et al 2011 and Kade...
Article
Introduction There have been a limited number of small case series reporting improvement in patients' function and pain scores following removal of pedicle screw metalwork for nontraumatic lumbar fusion surgery. The investigators' aim was to determine the degree of satisfaction from a patient cohort; and improvement in pain status after removal of...
Article
Full-text available
Recent regenerative medicine and tissue engineering strategies (using cells, scaffolds, medical devices and gene therapy) have led to fascinating progress of translation of basic research towards clinical applications. In the past decade, great deal of research has focused on developing various 3D organs, such as bone, skin, liver, kidney and ear,...
Article
Study Design. Analysis of volumetric wear loss of retrieved growth guidance sliding devices LSZ-4D for treatment of early onset scoliosis and laboratory in vitro wear test for comparison of wear resistance of alloys Nitinol, Ti, and cobalt chromium (CoCr). Objective. To evaluate quantitatively the amount of wear debris from the sliding LSZ-4D devic...
Article
Study design: Analysis of volumetric wear loss of retrieved growth guidance sliding devices LSZ-4D for treatment of early onset scoliosis and laboratory in vitro wear test for comparison of wear resistance of alloys Nitinol, Ti, and cobalt chromium (CoCr). Objective: To evaluate quantitatively the amount of wear debris from the sliding LSZ-4D de...
Article
Study design: Case series. Objective: To determine whether there is improvement in pulmonary function in children with early-onset scoliosis (EOS) using magnetic growth rods (MGRs). Summary of background data: EOS deformities have large impacts on lung function and volumes. Deterioration of pulmonary function in scoliosis is multifactorial, in...
Conference Paper
Full-text available
INTRODUCTION Pedicle screw fixation for unstable traumatic and pathological spinal fractures remains the gold standard of care but carries significant risks in patients with osteoporosis, tumours requiring radiotherapy, and ankylosing spondylitis. Minimally invasive pedicle screw and rod stabilization is a demanding technique but may have advantage...
Article
Aim: The purpose of this systematic review was to identify and critically appraise recently published evidence describing surgical techniques and outcomes of medial patellofemoral ligament reconstruction for patients with chronic patellofemoral instability. Background: There has been growing awareness of the biomechanical contribution of the medial...
Article
Cases in which there is a total hip arthroplasty and a stemmed total knee arthroplasty in the same femur, with loosening of 1 or both components, with serious endosteal bone loss or even a fracture between the stems present a difficult reconstruction problem. We describe a reconstruction using a combined hip and stemmed knee, designed so that they...

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Projects (3)