Hideaki Hamanaka

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BACKGROUND Upper cervical spine instability is one of the most critical orthopedic problems in patients with Down syndrome. However, arthrodesis of the upper cervical spine in these patients can be very difficult to achieve and has a high complication rate because of mental retardation and accompanying various medical conditions of the vital organs. Even(More)
BACKGROUND Factors influencing clinical course of brace treatment apply to adolescent idiopathic scoliosis (AIS) patients remain unclear. By making clear them, we may select suitable patients for brace treatment and alleviate overtreatment. The purpose of this study was to explore predictive factors of Osaka Medical College (OMC) brace treatment for AIS(More)
BACKGROUND Although most idiopathic scoliosis patients subject to conservative treatment in daily clinical practice, there have been no ideal methods to evaluate the spinal flexibility for the patients who are scheduled the brace treatment. The purpose of this study was to investigate the value of hanging total spine x-ray to estimate the indicative(More)
A 63-year-old woman presented with systemic erythema and Raynaud's phenomenon in June, 1987. Past medical and family histories were unremarkable. Discoid lupus lesions in the left arm and polyarthritis in the left leg were noted. Ultrasonography revealed pericardial effusion. Laboratory data were positive for antinuclear antibody (speckled pattern),(More)
BACKGROUND The efficacy of brace treatment for patients with adolescent idiopathic scoliosis (AIS) remains controversial. To make comparisons among studies more valid and reliable, the Scoliosis Research Society (SRS) has standardized criteria for brace studies in patients with AIS. The purpose of this study was to evaluate the efficacy of the Osaka Medical(More)
Objectives: The purpose of the current case presentation was to indicate the usefulness of long thoracic and lumbar (TL) spinal stabilization by percutaneous minimally invasive instrumentation. Materials and methods: From August 2012 to May 2013, we performed long TL spinal stabilization with VIPER 2 system (Depuy Spine, Inc., MA, US) by using a minimally(More)
Although it is not easy to differentiate neuropathic scoliosis caused by neural axis abnormalities (NAAs) from idiopathic scoliosis for lack of neurological signs, neuropathic scoliosis caused by NAAs has some specific clinical findings. The purpose of this study was to investigate the characteristics of neuropathic scoliosis caused by NAAs and to discuss(More)
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