Publications by authors named "Kwadwo P Yankey"

Spinal cord involvement is a rare complication of the schistosomiasis manifesting as myeloradiculopathy, medullary or conus-cauda equina syndrome which can lead to potentially serious long-term disability. Computed tomography and magnetic resonance imaging coupled with biochemical parameters have become the mainstay of diagnosis. Biopsy which is the gold standard of diagnosis demonstrating the organism is usually reserved for cases of diagnostic challenge.

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Study Design: Retrospective review of prospectively collected data.

Objective: To determine the incidence of medical complications in the pediatric population aged 10-20 years with baseline deformities exceeding 100 degrees or who had 3CO at surgery. Severe pediatric spine deformity poses a great challenge to the treating physician and carries a high complication rate.

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Purpose: The focus of SPINE20 is to develop evidence-based policy recommendations for the G20 countries to work with governments to reduce the burden of spine disease, and disability.

Methods: On September 17-18, 2021, SPINE20 held its annual meeting in Rome, Italy. Prior to the meeting, the SPINE20 created six proposed recommendations.

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Study Design: Prospective multicenter international observational study.

Objective: To investigate the effect of implant density on clinical outcomes in complex pediatric spine reconstruction. Implant density in spine deformity surgery has been a subject of much debate with some authors advocating higher density for better correction.

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Study Design: Retrospective review of consecutive series.

Objective: The study sought to assess the effect of prolonged pre-operative halo gravity traction (HGT) on the c-spine radiographs.

Methods: Data of 37 pediatric and adult patients who underwent ≥ 12wks pre-op HGT prior to definitive spine surgery from 2013-2015 at a single site in West Africa was reviewed.

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Objectives: To assess the safety and clinical benefits of intraoperative acute normovolaemic haemodilution (ANH) in complex spine surgery.

Design: Prospective comparative cohort study.

Setting: A private orthopaedic hospital in Ghana.

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Study Design: A retrospective review of prospectively collected from patients recruited at a single center.

Purpose: To test whether safe and optimal correction can be obtained with preoperative halo-gravity traction and posterior spinal fusion with adjunctive procedures but without VCR. Posterior vertebral column resection(VCR) is gaining popularity for correction of severe spinal deformity.

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Study Design: Retrospective review of consecutive series.

Objective: To assess the clinical and radiographic outcomes after surgical management of post-tuberculous kyphosis. Post-tuberculous (TB) kyphosis can lead to progressive pulmonary and neurological deterioration.

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Study Design: Prospective case series OBJECTIVE: Results of surgical treatment of complex vertebral transposition "Gamma Deformity" > 180 degrees with halo gravity traction (HGT) and vertebral column resection (VCR). We recently published a novel classification system for complex spine deformities of which complex vertebral transposition > 180 degrees (Gamma; type 3) was described. Halo gravity traction (HGT) has been shown to mitigate surgical risk in complex spine deformity correction and in some cases obviates the need for three-column osteotomy.

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Study Design: Prospective multicenter international observational study.

Objective: To investigate incidence of new neurologic deficit (NND) and the long-term recovery patterns following complex pediatric spine deformity surgery. The SRS M&M reports identify pediatric patients as having higher rate of new neurologic deficit compared with adults, while congenital and neuromuscular deformities are associated with higher new neurologic risks.

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Study Design: Retrospective review of consecutive series.

Objectives: This study sought to assess the incidence, risk factors, and outcomes of pulmonary complication following complex spine deformity surgery in a low-resourced setting in West Africa.

Methods: Data of 276 complex spine deformity patients aged 3 to 25 years who were treated consecutively was retrospectively reviewed.

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Purpose: For spine curvatures with Cobb angles > 100°, curve classification and characterization become more difficult with conventional radiographs. 3-D computerized axial tomography scans add relevant information to categorize and describe a new classification to aid preoperative assessment in communication and patient evaluation. The purpose of this study is to describe a radiographic classification system of curves exceeding 100°.

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Study Design: Retrospective Review of Prospective cohort.

Objective: To describe the feasibility of preoperative halo gravity traction (HGT) with subsequent growing rod/guided growth (GR/GG) placement in early onset spinal deformity (EOSD).

Summary Of Background Data: In children with severe EOSD, primary implantation of GR/GG constructs is not always possible.

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Study Design: Retrospective review of prospective cohort.

Objective: We sought to examine the role of halo gravity traction (HGT) in reducing preoperative surgical risk.

Summary Of Background Data: The impact of HGT on procedure choice, preoperative risk factors, and surgical complications has not been previously described.

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