Affiliations: [a] Department of Physical Therapy, School of Health Sciences, Japan University of Health Sciences, Saitama, Japan | [b] Department of Rehabilitation, Hitachino Orthopedic Clinic, Ibaraki, Japan | [c] Department of Physical Therapy, School of Rehabilitation, Tokyo Professional University of Health Sciences, Tokyo, Japan | [d] Department of Physical Therapy, Ibaraki Prefectural University of Health Sciences, Ibaraki, Japan | [e] Hitachino Orthopedic Clinic, Ibaraki, Japan
Correspondence:
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Corresponding author: Makoto Takahashi, Department of Physical Therapy, School of Health Sciences, Japan University of Health Sciences, 2-555 Hirasuka, Satte-City, Saitama 340-0145 Japan. E-mail: mtakahashi606@gmail.com.
Abstract: BACKGROUND: Determining the association between radiographic spinal instability assessment and lower back lumbar diseases with lower limb symptoms can contribute to evidence-based assessment and treatment in clinical practice and rehabilitation. Therefore, radiological evidence of lumbar spine instability assessment, such as sagittal translation (ST) and segmental angulation (SA), is clinically important. OBJECTIVE: To identify factors associated with the assessment of spinal instability in lumbar disc herniation with leg pain and discogenic low back pain using ST and SA. METHODS: We examined 112 patients with lumbar disc herniation with leg pain and 116 with discogenic low back pain at our clinic from 2016 to 2021. Data on age, gender, sports activities, and occupation were collected from medical records. Additionally, ST and SA of L4 and L5 during maximum trunk flexion and extension were measured using radiography. Simple and multiple logistic regression analyses were used for statistical analysis. RESULTS: Simple logistic regression analysis showed that ST and SA (odds ratio [OR]: 1.11; 95% confidence interval [CI]: 1.03–1.19) were associated with lumbar disc herniation. Multiple logistic regression analysis showed that only ST was associated with lumbar disc herniation (OR: 2.29; 95% CI: 1.78–3.00). CONCLUSION: Multiple logistic regression analysis showed that ST was associated with lumbar disc herniation with leg pain and had a stronger association than SA.
Keywords: Sagittal translation, segmental angulation, lumbar disc herniation, discogenic low back pain, leg pain, spinal instability
