Ken Wada
Boston Children's Hospital
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Publication
Featured researches published by Ken Wada.
Orthopaedics and Traumatology | 1998
Ken Wada
729 females over 40 years old were studied for bone mineral density of the radius (DEXA method) and X-rays of the spine.The incidence of vertebral fractures increases with age and as the bone mineral density (BMD) decreases.The BMD average with vertebral fractures was significantly low.While the BMD of the distal radius show correlation with vertebral fractures, it cannot serve as the single method for diagnosing osteoporosis.
Orthopaedics and Traumatology | 1991
Koichiro Yokoyama; Norio Shinohara; Ken Wada; Takeshi Tokito; Akira Kawasima; Masakazu Kondoh
Sixteen patients with new or recurrent primary tumors of bone or soft tissues underwent both magnetic resonance imaging (MRI) and computed tomography (CT). The neoplasms arose in osseus tissue in ten and in soft tissue in six individuals: MRI was judged superior to CT in the majority of cases. The major reason was the greater contrast between neoplasm and adjacent normal tissue and the extent of abnormal bone marrow. Judging the relation of tumors to vital structures, such as blood vessels or nerves, MRI is generally superior to CT. CT scan shows the relationship between the tumor and the neighboring structures in greater detail, but the exact borders between tumor, possible surrounding edema or inflammatory tissue and normal muscles could not be defined. On the other hand, MRI shows the exact relationship between them, clearly separated by edematous or reactive tissues.
Orthopaedics and Traumatology | 1984
Ken Wada; Toshio Fujii; Shinkichi Himeno; Masao Eguchi; Toshio Tokuhisa
Chodrodysplasia punctata is a very rare disease, and was first described by Conradi in 1914. Almost 200 cases have been reported in the world, and 33 cases in Japan.The essential feature of this condition is the presence of stippled foci of calcification within the hyaline cartilage in infancy. And this disease is frequently associated with multiple congenital abnormalities, as cataract, saddle nose, follicular atrophoderma, contractures of joints, dwarfing of the limbs, kyphoscoliosis, mental retardation, etc.Three cases of Conradi-Hunermann type of chondrodysplasia punctata, diagnosed in infancy, are presented. They were followed for about 10 years.
Orthopaedics and Traumatology | 1992
Ken Wada; Masakazu Kondoh; Mutsuaki Kai; Shuichi Matsuda; Norio Shinohara; Koichiroh Yokoyama
Orthopaedics and Traumatology | 1992
Koichiro Yokoyama; Norio Shinohara; Masakazu Kondoh; Ken Wada; Mutsuaki Kai; Shuichi Matsuda
Orthopaedics and Traumatology | 1991
Shuichi Matsuda; Masakazu Kondo; Ken Wada; Mutsuaki Kai; Norio Shinohara; Koichiro Yokoyama
Orthopaedics and Traumatology | 1991
Ken Wada; Masakazu Kondoh; Takeshi Tokitoh; Norio Shinohara; Koichiro Yokoyama; Akira Kawashima
Orthopaedics and Traumatology | 1990
Toshio Inoue; Toshio Fujii; Ken Wada; Toshifumi Simoda
Orthopaedics and Traumatology | 1990
Ken Wada; Masakazu Kondoh; Takeshi Tokitoh; Norio Shinohara; Koichiro Yokoyama; Akira Kawashima
Orthopaedics and Traumatology | 1989
Hirokazu Shiraishi; Toshio Fujii; Ken Wada; Hideaki Kubota; Tsunehiko Shin; Ayako Morimoto; Masahiro Zaitsu