Open Access

The Attallah screw: Where safety meets robustness in posterior subaxial cervical instrumentation

  • Authors:
    • Mohammed Hasanain
    • Colya N. Englisch
    • Thomas Tschernig
    • Samah Saeed
    • Magomed Lepschokov
    • Ralf Ketter
    • Joachim Oertel
  • View Affiliations

  • Published online on: April 24, 2024     https://doi.org/10.3892/mi.2024.159
  • Article Number: 35
  • Copyright : © Hasanain et al. This is an open access article distributed under the terms of Creative Commons Attribution License [CC BY 4.0].

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Abstract

Posterior fixation of the subaxial cervical spine (SCS) commonly relies on the application of lateral mass screws (LMS), with pedicle screws being a less prevalent alternative. The present study provides another option: A recently introduced novel approach, the Attallah screw, intended to ensure a safety profile comparable to that of LMS, combined with a strength profile similar to that of pedicle screws. The focus of the present study is the comparative analysis of peak insertion torques for these three screw types. Employing standard surgical techniques and instruments, Attallah screws were scheduled for insertion on the right side of the SCS in 15 cadavers, pedicle screws on the left side in 8 cadavers, and LMS on the left side in the remaining 7 cadavers. The peak insertion torque was recorded using an electronic torque screwdriver. The results revealed that the peak insertion torques were similar in the pedicle and the Attallah screw at C3, C4 and C7, but differed at C5 (mean ± SD; pedicle, 79.5±19.6 cNm; Attallah, 56.7±18.5 cNm; P=0.029) and C6 (pedicle, 85.4±28.7 cNm; Attallah, 49.8±17.9 cNm; P=0.004) in favor of the superior pedicle screw measurements. The peak insertion torques of the pedicle screw were superior to the corresponding data from the LMS from C4 to C7. By contrast, the peak insertion torques of the Attallah screw were only superior to those of the LMS at C7 (Attallah, 69.5±24.5 cNm; lateral mass, 40.5±21.4 cNm; P=0.030), although similar trends were observed at the other cervical levels. On the whole, the findings presented herein indicate the level‑dependent superior robustness of the Attallah screw as a posterior cervical fixation method compared to the LMS. However, from a biomechanical perspective, the pedicle screw remains the preeminent choice for fixation within the C5‑C6 range. 

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Spandidos Publications style
Hasanain M, Englisch CN, Tschernig T, Saeed S, Lepschokov M, Ketter R and Oertel J: The Attallah screw: Where safety meets robustness in posterior subaxial cervical instrumentation. Med Int 4: 35, 2024
APA
Hasanain, M., Englisch, C.N., Tschernig, T., Saeed, S., Lepschokov, M., Ketter, R., & Oertel, J. (2024). The Attallah screw: Where safety meets robustness in posterior subaxial cervical instrumentation. Medicine International, 4, 35. https://doi.org/10.3892/mi.2024.159
MLA
Hasanain, M., Englisch, C. N., Tschernig, T., Saeed, S., Lepschokov, M., Ketter, R., Oertel, J."The Attallah screw: Where safety meets robustness in posterior subaxial cervical instrumentation". Medicine International 4.4 (2024): 35.
Chicago
Hasanain, M., Englisch, C. N., Tschernig, T., Saeed, S., Lepschokov, M., Ketter, R., Oertel, J."The Attallah screw: Where safety meets robustness in posterior subaxial cervical instrumentation". Medicine International 4, no. 4 (2024): 35. https://doi.org/10.3892/mi.2024.159