Anatomical and radiologic characteristics of isthmus parameters in guiding pedicle screw placement

Rexiti, Paerhati; Abulizi, Yakufu; Muheremu, Aikeremujiang; Wang, Shuiquan; Maimaiti, Maierdan; Guo, Hailong; Sheng, Weibin

doi:10.1177/0300060518762986

Cited by 5 publications

(11 citation statements)

References 13 publications

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“…As shown in our previous study (Table 1) 12 , the mean deviation degree of the angle (105.5%) determined by the orthopaedic clinician was significantly higher than the average deviation degree of distance (14.33%). These findings indicated that the accurate determination of distance was easier.…”

Section: Distance and Angle Assessmentsupporting

confidence: 57%

“…Isthmus parameters, including D1 12 , D2, and D3, were introduced into the process of screw placement. The D2 value was measured as the vertical distance between the line connecting the vertexes of the isthmus and the inferior border of the transverse process.…”

Section: Methodsmentioning

confidence: 99%

“…2, 4, and 6 mm) were selected as the contents of the questionnaire ( Supplementary Fig. S1), as previously reported 12 . A total of 40 physicians in the orthopaedic center were selected to determine the specific values for each angle and distance drawn, requiring a maximum accuracy deviation of 1 or 1 mm, respectively.…”

Section: Questionnaire Surveymentioning

confidence: 99%

“…Based on the screw placement experience of specimens and previous clinical cases, we propose that the carrying angle of the cortical bone screws during operations should be adjusted according to each lumbar vertebral body but not standardized to the 10 mentioned in the literature [12][13][14][15][16][17][18] . We recommend that the angles of L 1 and L 2 in the upper lumbar spine be controlled at approximately 10 ; the angle of L 3 should be 10 -15 , and those of L 4 and L 5 should be 15 -20 ( Fig.…”

Section: Cortical Screw Placement On the Horizontal Plane Through Anamentioning

confidence: 99%

“…In this study, the principle of traditional pedicle screw placement 12 and angle control of the digital navigation device system were used to assist the insertion of the CBT screw. The aim of this approach was to better define the screw insertion point, and to improve the freehand screw placement technology and success rates of surgeries.…”

Section: Introductionmentioning

confidence: 99%

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Anatomy and Imaging Studies on Cortical Bone Screw Freehand Placement Applying Anatomical Targeting Technology

Rexiti

Aierken

Sadeer

et al. 2020

Orthopaedic Surgery

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Objectives: A series of constant anatomical structures were used as guide targets for screw placement to improve the accuracy of cortical screw placement and reduce surgical injury and fluoroscopy radiation. The most commonly used angles and distances between the cortical bone screw insertion point and the lateral margins of the isthmus were selected as the contents of the questionnaire. Methods: A total of 40 physicians were selected to determine the specific values for each angle and distance. Screw placements were performed on four dry and six wet lumbar spine specimens according to the proposed anatomical target guidance technique. A total of 100 cortical bone trajectories were evaluated using X-ray and CT scanning of the specimens to verify the practicability, accuracy, and safety of the anatomical target guidance technique in screw placement. Results: The average deviation rates for angle and distance determination were 105.5% and 14.33%, respectively, indicating a significant difference between the estimated and actual values from other angles (P < 0.05). Based on visual inspection, probe penetration, X-ray, and CT examination of 100 cortical bone trajectories, the excellent rate of 40 trajectories on four dry specimens was 95%, while that of 60 trajectories on six wet specimens was 88.7%. Conclusion: Use of lumbar constant anatomical structures as targeting guidance could assist cortical bone screw placement and reduce surgical damage.

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Section: Distance and Angle Assessmentsupporting

confidence: 57%

Section: Methodsmentioning

confidence: 99%

Section: Questionnaire Surveymentioning

confidence: 99%

Section: Cortical Screw Placement On the Horizontal Plane Through Anamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Anatomy and Imaging Studies on Cortical Bone Screw Freehand Placement Applying Anatomical Targeting Technology

Rexiti

Aierken

Sadeer

et al. 2020

Orthopaedic Surgery

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Value of different preoperative bone evaluation methods in predicting intraoperative screw insertion torque: a prospective clinical comparative trial

Yin,

Lin,

Zheng

et al. 2024

The Spine Journal

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The Method of Portal Making in Lumbar Unilateral Biportal Endoscopic Surgery with Different Operative Approaches According to the Constant Anatomical Landmarks of the Lumbar Spine: A Review of the Literature

Wang,

Maimaiti,

Tuoheti

et al. 2024

Global Spine Journal

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Study Design Review. Objective Unilateral Biportal Endoscopy (UBE) is a minimally invasive surgery that is gaining recognition and being employed in clinical practice. Nevertheless, the precise method for determining UBE portals’ location varies depending on the originator’s preferences or the anatomical structure’s proximity to the portal positions. Consequently, the relationship among UBE portals' locations is messy. This study aims to elaborate on the specific portal localization and explore the positional association and commonality among different UBE approaches’ portals. Methods The following keywords are used to search in the PubMed, Ovid, Web of Science, ScienceDirect, SpringerLink, Scopus, CNKI, and Wanfang database: “Biportal endoscopic spinal surgery”, “Two portal endoscopic spinal surgery”, “Percutaneous biportal endoscopic decompression”, “Unilateral biportal endoscopy”, “Irrigation endoscopic discectomy”, “UBE” and “BESS”. Results After screening, 29 pieces of literature are included. The study summarizes different UBE approach portal localizations, categorized by fusion or non-fusion surgery and pathological classification. The study presents an inaugural method for categorizing the lumber into four surgical intervals based on bone landmarks and assigns different UBE approaches to the appropriate intervals based on their characteristics, making the selection of UBE surgical approaches’ portal locations more flexible. Additionally, the study provides an overview of the indications, complications, and distinct benefits associated with each interval, further refining the novel UBE portal interval localization method. Conclusion The study clarifies the interrelationship and commonality between the portals of different UBE approaches and proposes a new UBE portal interval localization method to enhance surgeons’ understanding and proficiency in UBE procedures.

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Anatomical and radiologic characteristics of isthmus parameters in guiding pedicle screw placement

Cited by 5 publications

References 13 publications

Anatomy and Imaging Studies on Cortical Bone Screw Freehand Placement Applying Anatomical Targeting Technology

Anatomy and Imaging Studies on Cortical Bone Screw Freehand Placement Applying Anatomical Targeting Technology

Value of different preoperative bone evaluation methods in predicting intraoperative screw insertion torque: a prospective clinical comparative trial

The Method of Portal Making in Lumbar Unilateral Biportal Endoscopic Surgery with Different Operative Approaches According to the Constant Anatomical Landmarks of the Lumbar Spine: A Review of the Literature

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