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Comparison of surgical outcomes between macro discectomy and micro discectomy for lumbar disc herniation: a prospective randomized study with surgery performed by the same spine surgeon.

• Yoshito Katayama, Yukihiro Matsuyama, +5 authors Naoki Ishiguro
• Journal of spinal disorders & techniques
• 2006

STUDY DESIGN A prospective study was conducted on the surgical procedures for lumbar disc herniation. OBJECTIVE The objective of this study is to investigate the surgical outcomes of different… (More)

MR T2 image classification in cervical compression myelopathy: predictor of surgical outcomes.

• Yasutsugu Yukawa, Fumihiko Kato, Hisatake Yoshihara, Makoto Yanase, Keigo Ito
• Spine
• 2007

STUDY DESIGN Prospective imaging study of patients undergoing surgery for cervical compressive myelopathy. OBJECTIVES.: To investigate whether the classification of increased signal intensity (ISI)… (More)

Subaxial sagittal alignment and adjacent-segment degeneration after atlantoaxial fixation performed using C-1 lateral mass and C-2 pedicle screws or transarticular screws.

• Go J Yoshida, Mituhiro Kamiya, +6 authors Yoshihito Sakai
• Journal of neurosurgery. Spine
• 2010

OBJECT The purpose of this study was to evaluate the effect of a fixed atlantoaxial angle on subaxial sagittal alignment, and that of atlantoaxial fixation on adjacent-segment motion and… (More)

Simultaneous registration with ct-fluoro matching for spinal navigation surgery. A case report.

• Yoshihito Sakai, Yukihiro Matsuyama, Hisatake Yoshihara, Hiroshi Nakamura, Shojiro Nakashima, Naoki Ishiguro
• Nagoya journal of medical science
• 2006

Computer-assisted surgery, which provides simultaneous, multiplanar images of bone structures, has become widely used. However, registration maneuvering remains time consuming. The objective of this… (More)

Vertebral reconstruction with biodegradable calcium phosphate cement in the treatment of osteoporotic vertebral compression fracture using instrumentation.

• Yukihiro Matsuyama, Manabu Goto, +6 authors Naoki Ishiguro
• Journal of spinal disorders & techniques
• 2004

OBJECTIVE To assess the efficacy of posterior instrumentation and vertebral reconstruction with biodegradable calcium phosphate cement (CPC) in the treatment of osteoporotic vertebral compression… (More)

Cervical pedicle screw fixation in 100 cases of unstable cervical injuries: pedicle axis views obtained using fluoroscopy.

• Yasutsugu Yukawa, Fumihiko Kato, Hisatake Yoshihara, Makoto Yanase, Keigo Ito
• Journal of neurosurgery. Spine
• 2006

OBJECT The authors conducted a study to introduce the imaging technique in which pedicle axis views are obtained using fluoroscopy to match the screw entry point with pedicle orientation and to… (More)

Image classification of idiopathic spinal cord herniation based on symptom severity and surgical outcome: a multicenter study.

• Shiro Imagama, Yukihiro Matsuyama, +16 authors Naoki Ishiguro
• Journal of neurosurgery. Spine
• 2009

OBJECT The purpose of this study was to provide the first evidence for image classification of idiopathic spinal cord herniation (ISCH) in a multicenter study. METHODS Twelve patients who underwent… (More)

Histologic analysis of the implanted cartilage in an exact-fit osteochondral transplantation model.

• Takeshi Makino, Hiroyuki Fujioka, +4 authors Kosaku Sakai Mizuno
• Arthroscopy : the journal of arthroscopic…
• 2001

PURPOSE Osteochondral transplantation is one of the useful treatments for articular cartilage defect. However, the histologic change of the implanted cartilage has not been reported in detail. We… (More)

Appropriate timing of surgical intervention for the proximal type of cervical spondylotic amyotrophy

• Ryoji Tauchi, Shiro Imagama, +20 authors Naoki Ishiguro
• European Journal of Orthopaedic Surgery…
• 2014

The purposes of this study were to evaluate the clinical outcome after surgical treatment of patients with the proximal type of cervical spondylotic amyotrophy (CSA) and to explore the appropriate… (More)

Elective induction of labor at 39 weeks of gestation: a prospective randomized trial.

• Kaori Amano, Keisuke Saito, Takashi Shoda, Aya Tani, Hisatake Yoshihara, Motohiro Nishijima
• The journal of obstetrics and gynaecology…
• 1999

OBJECTIVE To clarify the safety of elective induction of labor at 39 weeks of gestation. STUDY DESIGN Prospective randomized study. SUBJECTS AND METHODS Uncomplicated nulliparas (N = 194) were… (More)

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