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  1. Article

    Real-world persistence of twice-weekly teriparatide and factors associated with the discontinuation in patients with osteoporosis

    A 28.2 μg twice-weekly formulation of teriparatide (2/W-TPD) was developed to provide comparably high efficacy for osteoporosis to a 56.5 μg once-weekly formulation while improving the safety and persistence r...

    Ryo Fujita, Tsutomu Endo, Masahiko Takahata in Journal of Bone and Mineral Metabolism (2022)

  2. No Access

    Article

    Association between obesity and ossification of spinal ligaments in 622 asymptomatic subjects: a cross-sectional study

    Previous studies on patients with symptoms of spinal ligament ossification, including ossification of the posterior longitudinal ligament (OPLL) and ligamentum flavum (OLF), have not clarified whether obesity ...

    Tsutomu Endo, Masahiko Takahata, Yoshinao Koike in Journal of Bone and Mineral Metabolism (2022)

  3. Article

    Open Access

    Short- versus long-segment posterior spinal fusion with vertebroplasty for osteoporotic vertebral collapse with neurological impairment in thoracolumbar spine: a multicenter study

    Vertebroplasty with posterior spinal fusion (VP + PSF) is one of the most widely accepted surgical techniques for treating osteoporotic vertebral collapse (OVC). Nevertheless, the effect of the extent of fusio...

    Yuya Ishikawa, Kei Watanabe, Keiichi Katsumi in BMC Musculoskeletal Disorders (2020)

  4. Article

    Open Access

    Effect of bisphosphonates or teriparatide on mechanical complications after posterior instrumented fusion for osteoporotic vertebral fracture: a multi-center retrospective study

    The optimal treatment of osteoporosis after reconstruction surgery for osteoporotic vertebral fractures (OVF) remains unclear. In this multicentre retrospective study, we investigated the effects of typically ...

    Atsuyuki Kawabata, Toshitaka Yoshii, Takashi Hirai in BMC Musculoskeletal Disorders (2020)

  5. Article

    Open Access

    Surgical outcomes of spinal fusion for osteoporotic thoracolumbar vertebral fractures in patients with Parkinson’s disease: what is the impact of Parkinson’s disease on surgical outcome?

    To date, there have been little published data on surgical outcomes for patients with PD with thoracolumbar OVF. We conducted a retrospective multicenter study of registry data to investigate the outcomes of f...

    Kei Watanabe, Keiichi Katsumi, Masayuki Ohashi in BMC Musculoskeletal Disorders (2019)

  6. No Access

    Article

    Peri-operative complications of lumbar spine surgery in patients over eighty five years of age: a retrospective cohort study

    To compare peri-operative complication rates in ≥ 85-year-old patients who underwent decompression surgery with or without instrumented fusion for degenerative disorders.

    Shingo Onda, Masahiro Kanayama, Tomoyuki Hashimoto in International Orthopaedics (2018)

  7. Article

    Open Access

    Effect of teriparatide (rh-PTH 1–34) versus bisphosphonate on the healing of osteoporotic vertebral compression fracture: A retrospective comparative study

    Teriparatide (recombinant human parathyroid hormone 1–34) is increasingly used for the treatment of severe osteoporosis because it stimulates bone formation and may potentially enhance fracture healing. The ob...

    Akira Iwata, Masahiro Kanayama, Fumihiro Oha in BMC Musculoskeletal Disorders (2017)

  8. No Access

    Article

    Does balloon kyphoplasty improve the global spinal alignment in osteoporotic vertebral fracture?

    Balloon kyphoplasty (BKP) has been a well-accepted procedure in the treatment of osteoporotic vertebral compression fracture (OVCF), whereas it remains unclear whether or not this procedure has an impact on th...

    Masahiro Kanayama, Fumihiro Oha, Akira Iwata in International Orthopaedics (2015)