William S Yeo

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BACKGROUND Percutaneous endoscopic lumbar discectomy is a relatively new technique. Very few studies have reported the clinical outcome of percutaneous endoscopic discectomy in terms of quality of life and return to work. METHOD 55 patients with percutaneous endoscopic lumbar discectomy done from 2002 to 2006 had their clinical outcomes reviewed in terms(More)
PURPOSE Fuchs corneal dystrophy (FCD) is an autosomal dominant disease of the corneal endothelium with variable penetrance and expressivity. Recently, rs613872, an intronic variation of TCF4 associated with late-onset FCD, was reported. The present study was undertaken to examine this association in our cohort of FCD patients, to assess the significance of(More)
BACKGROUND AND PURPOSE Outcome measurement has been shown to improve performance in several fields of healthcare. This understanding has driven a growing interest in value-based healthcare, where value is defined as outcomes achieved per money spent. While low back pain (LBP) constitutes an enormous burden of disease, no universal set of metrics has yet(More)
Study Design: Retrospective analysis of prospective database. Purpose: To compare 2-year clinical and radiological outcomes after minimally invasive transforaminal lumbar interbody fusion (MIS-TLIF) among " middle-age " (50–64.99 years), " young-old " (65–74.99 years), and " old-old " (>75 years) patients. Overview of Literature: Owing to higher(More)
Study Design: Retrospective review of prospective registry data. Purpose: To determine 5-year clinical and radiological outcomes of single-level instrumented minimally invasive transforaminal lum-bar interbody fusion (MIS-TLIF) in patients with neurogenic symptoms secondary to spondylolisthesis. Overview of Literature: MIS-TLIF and open approaches have been(More)
STUDY DESIGN Comparison of prospectively collected data of patients undergoing minimally invasive surgery transforaminal lumbar interbody fusion (MIS-TLIF) with and without recombinant human bone morphogenic protein 2 (BMP). PURPOSE To compare the clinical, radiological outcome and complications of patients undergoing MIS-TLIF with and without BMP. (More)
BACKGROUND Knee extensor strength and knee extension range of motion (ROM) are important predictors of physical function in patients with a total knee arthroplasty (TKA). However, the relationship between the two knee measures remains unclear. The purpose of this study was to examine whether changes in knee extensor strength mediate the association between(More)
PURPOSE To evaluate the outcomes, fusion rates, complications, and adjacent segment degeneration associated with transforaminal lumbar interbody fusion (TLIF). METHODS 32 men and 80 women aged 15 to 85 (mean, 57) years underwent 141 fusions (84 one-level, 27 2-level, and one 3-level) and were followed up for 24 to 76 (mean, 33) months. 92% of the patients(More)
PURPOSE Fuchs corneal dystrophy (FCD) is a progressive disorder of the corneal endothelium and is pathologically defined by the presence of guttae, which are excrescences of the Descemet membrane. The present study was undertaken to investigate the age-severity relationship of the FCD2-linked disease phenotype using retroillumination photography and to(More)
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