Robert Wen-Wei Hsu

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This article summarizes the range and variation of femorotibial alignment, the horizontal orientation of the hip, knee, and ankle joint line, and other pertinent anatomic factors of the lower extremity in normal population groups evenly divided according to gender and age. Although the present data deals only with a two-dimensional frontal plane analysis,(More)
OBJECTIVES E-cigarette companies and vendors claim the potential of e-cigarettes to help smokers reduce or quit tobacco use. E-cigarettes also have the potential to renormalise smoking. The purpose of this study was to describe the availability and in-store marketing of e-cigarettes in London, UK stores selling tobacco and alcohol. DESIGN Observational(More)
BACKGROUND Severely collapsed vertebral compression fracture (VCF) is usually considered as a contraindication for vertebroplasty because of critically decreased vertebral height (less than one-third the original height). However, osteoporotic VCF can possess dynamic mobility with intravertebral cleft (IVC), which can be demonstrated on supine lateral(More)
Studies of auditory function in the human neonate indicate adult-like hearing sensitivity, mature cochlear function and well-developed responses in the auditory pathway. Paradoxically, measurements of middle ear function are characterized by responses that would be interpreted as abnormal in older subjects. Consequently, there is not an accepted clinical(More)
BACKGROUND Arthritic knees with Ranawat type-II valgus deformity present with soft tissue contracture and osseous anomalies that make total knee arthroplasty (TKA) difficult. We hypothesized that computer-navigated-TKA (CN-TKA) may be superior to conventional techniques and provide better mid-term radiographic and clinical outcomes in such cases. METHODS(More)
OBJECTIVE This study tested the hypothesis that triangulation of two anterior vertebral screws without penetration of the cortex offers more resistance to pullout than two screws placed in parallel and penetrated. DESIGN The pullout strength for two parallel or two triangulated anterior vertebral screws fixation, with a uni-cortical or bi-cortical(More)
BACKGROUND Pseudomeningoceles are a rare complication after spinal surgery, and studies on these complex formations are few. METHODS Between October 2000 and March 2008, 11 patients who developed symptomatic pseudomeningoceles after spinal surgery were recruited. In this retrospective study, we reported our experiences in the management of these complex,(More)
BACKGROUND Mechanical alignment guides are designed to compensate for variations in the valgus alignment angle; however, these guides may not be adequate when a patient has coronal alignment with marked bowing deformity. Previous study demonstrates better radiographic results, but the clinical benefits are a matter of speculation. The aim of this study was(More)
BACKGROUND Percutaneous vertebroplasty (PV) is generally performed under fluoroscopic guidance. Technically, single fluoroscope is considered sufficient for effectively monitoring PV. However, single fluoroscopic technique might be time-consuming in rotating the C-arm of the fluoroscope for either antero-posterior (AP) or lateral radiographic view, and(More)
BACKGROUND Health-related fitness has been reported to be associated with improved quality of life (QoL) in the elderly. Health-related fitness is comprised of several dimensions that could be enhanced by specific training regimens. It has remained unclear how various dimensions of health-related fitness interact with QoL in postmenopausal women. (More)