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Reducibility of cervical disk herniation: evaluation at MR imaging during cervical traction with a nonmagnetic
Tae-Sub Chung1, Young-Jun Lee, Seong-Woong Kang
1Department of Diagnostic Radiology and Research Institute of Radiological Science, Yonsei University College of Medicine, YongDong Severance Hospital, 146-92 Dogok-Dong, Kangnam-Gu, Seoul 135-270, Korea. tschung@yumc.yonsei.ac.kr
Abstract:
The authors evaluated the reducibility of cervical disk herniation at magnetic resonance (MR) imaging performed with the patient in cervical traction. After the acquisition of neutral-state images, cervical traction images were obtained in 29 patients and seven healthy volunteers while they wore a portable intermittent traction device. During traction, all volunteers and 21 patients had a substantial increase in the length of the cervical vertebral column. The disk herniation was completely resolved in three patients and partially reduced in 18. The reducibility of cervical disk herniation can be evaluated at MR imaging performed during cervical traction.