Surgical Usage of a Cortical Bone Trajectory Pedicle Screw to Treat Lumbar Pyogenic Spondylodiscitis - Preliminary Report -  (피질골 척추경 나사못 기기를 이용한 요추 화농성 척추추간판염의 수술적 치료 - 예비 보고 - )

Kim Young Yul (김영율); 박찬주; Kee-Won Rhyu (유기원)

Surgical Usage of a Cortical Bone Trajectory Pedicle Screw to Treat Lumbar Pyogenic Spondylodiscitis - Preliminary Report -

Journal of Korean Society of Spine Surgery
Abbr : J Kor Spine Sur
2016, 23(4), pp.216-222
Publisher : Korean Society Of Spine Surgery
Research Area : Medicine and Pharmacy > Orthopedic Surgery

Kim Young Yul ¹, 박찬주 ², Kee-Won Rhyu ²

¹가톨릭대학교
²성빈센트병원 정형외과

Accredited

ABSTRACT

Study Design: Retrospective clinical study. Objectives: To assess the efficacy of a cortical bone trajectory pedicle screw (CBT-PS) for the treatment of lumbar pyogenic spondylodiscitis. Summary of Literature Review: Pedicle screws were used for surgical treatment of pyogenic spondylodiscitis to prevent instability and deformity. CTB-PS are typically inserted from the inferomedial to superolateral direction of the pedicle and have yielded satisfactory results in degenerative or osteoporotic spinal disorders. Materials and Methods: Eight patients with single segment lumbar pyogenic spondylodiscitis were analyzed. At first, anterior debridements and interbody fusions were perfomed with autogenous strut bone grafts, followed by posterior fixations and fusions with CBT-PS. The lordotic angles of operated levels were checked at the preoperative, postoperative, and final follow-ups. Visual analogue scales (VAS) were checked at the preoperative and final follow-ups. Results: Lesion sites were found at four L3-4, three L4-5, and one L2-3. Follow-ups were held at 26.13±8.23 months. The lordotic angles at preoperative, postoperative, and final follow-ups were 12.13±3.09°, 14.63±3.16°, and 12.75±3.99°, retrospectively. There were significant differences between results from the preoperative-postoperative and postoperative-final follow ups. There was no difference in the preoperative-final follow up. There was a significant difference between the VAS at the preoperative and final follow-ups (8.13±0.83 and 2.38±0.92, retrospectively). Complete bony unions of were observed at the final follow-up in all cases. Conclusions: The advantages of using a CBT-PS for lumbar pyogenic spondylodiscitis included the ability to minimize damage from the screw for both the posterior structure damage and the operated anterior area to prevent instability and deformity, and to achieve rigid bone union. CBT-PS is a potential surgical option for pyogenic spondylodiscitis.

KEYWORDS

Lumbar, Pyogenic spondylodiscitis, Cortical bone trajectory pedicle screw, Posterior instrumentation

Citation status

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

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