The Effect of Cervical Lordosis on Cervical Disc Degeneration in Patients with a High T1 Slope (T1 시상각이 큰 환자에서 경추 만곡이 경추간판 퇴행에 미치는 영향)

Sung-Ha Hong (홍성하); Seung-Hwan Lee (이승환); Byeong-Mun Park (박병문); Kyung-Sub Song (송경섭); Sung-Tae Lim (임성태)

The Effect of Cervical Lordosis on Cervical Disc Degeneration in Patients with a High T1 Slope

Journal of Korean Society of Spine Surgery
Abbr : J Kor Spine Sur
2018, 25(2), pp.54-59
Publisher : Korean Society Of Spine Surgery
Research Area : Medicine and Pharmacy > Orthopedic Surgery

Sung-Ha Hong ¹, Seung-Hwan Lee ², Byeong-Mun Park ³, Kyung-Sub Song ², Sung-Tae Lim ¹

¹성애병원 정형외과
²광명성애병원 정형외과
³광명 성애병원 정형외과

Accredited

ABSTRACT

Study Design: Retrospective evaluation. Objectives: To analyze the effect of cervical lordosis on cervical disc degeneration in patients with a high T1 slope. Summary of Literature Review: The T1 slope is known to be a parameter that may be very useful in evaluating sagittal balance. We previously reported that a low T1 slope was a potential risk factor for cervical spondylosis, especially in the C6-7 cervical segment. However, no study has analyzed the effect of cervical lordosis in patients with a high T1 slope (>25) on cervical disc degeneration. Materials and Methods: Seventy-seven patients with a high T1 slope who underwent cervical spine MRI in our orthopedic clinic were enrolled. Patients were divided into 2 groups according to cervical compensation. The radiologic parameters obtained from radiography and cervical spine MRI were compared between the uncompensated group (cervical lordosis <25) and the compensated group (cervical lordosis ≥25). Results: In the uncompensated group, the average degeneration grade of each segment was 2.72 (±0.70) in C2-3, 3.00 (±0.76) in C3-4, 3.02 (±0.91) in C4-5, 3.37 (±0.95) in C5-6, and 2.95 (±0.98) in C6-7. The average degeneration grade of each segment in the compensated group was 2.38 (±0.78) in C2-3, 2.38 (±0.60) in C3-4, 2.62 (±0.60) in C4-5, 2.82 (±0.72) in C5-6, and 2.41 (±0.74) in C6-7. The degeneration grade was significantly higher in the uncompensated group than in the compensated group for all cervical segments. The risk of high-grade degeneration of C3-4 was significantly higher in the uncompensated group (odds ratio = 6.268; 95% CI, 2.232-17.601; p<.001). Conclusions: Patients with a high T1 slope without compensation of cervical lordosis had a higher grade of degeneration in all cervical segments.

KEYWORDS

Cervical disc degeneration, T1 slope, Cervical lordosis

Citation status

* References for papers published after 2023 are currently being built.

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Journal of Korean Society of Spine Surgery 2023 KCI Impact Factor : 0.03