Clinical importance of the minimal cancellous diameter of lower thoracic and lumbar vertebral pedicles

Islam, Cihangir; Güzel, Mehmet Bahaddin; Sakul, Bayram Ufuk

doi:10.1002/(sici)1098-2353(1996)9:3<151::aid-ca2>3.0.co;2-j

Cited by 4 publications

(4 citation statements)

References 18 publications

(8 reference statements)

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“…The horizontal diameters are the most commonly studied variables in morphometric studies of the vertebral pedicle. The average values of the different horizontal diameters (outer pedicle width) are consistent with those of other populations with respect to the patterns of behavior and the general morphometric characteristics of the thoracic spine pedicle (Zindrick et al, 1987;Islam et al, 1994;McCormack et al, 1995;Vaccaro et al, 1995a,b;Islam et al, 1996;Ebraheim et al, 1997;Ugur et al, 2001;Datir and Mitra, 2004;Christodolou et al, 2005;Nojiri et al, 2005;;Catan et al, 2007;Jun-Hak et al, 2009;Yong et al, 2009;Chen et al, 2010;Acharya et al, 2011;Singh et al, 2011;Zhuang et al, 2011Zhuang et al, , 2012Cui et al, 2012).…”

Section: General and Intersegmental Observationssupporting

confidence: 78%

“…The general morphometric characteristics of the thoracic spine pedicle have been widely studied (Zindrick et al, 1987;Islam et al, 1994;McCormack et al, 1995), and some authors have considered the differences between genders (Amonoo- Kuofi, 1995;Mughir et al, 2010). However, to date, no thoracic spine studies have examined variations in pedicle dimensions with respect to age and gender for any population.…”

Section: Introductionmentioning

confidence: 99%

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Age‐ and gender‐related variations in morphometric characteristics of thoracic spine pedicle

et al. 2013

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Transpedicular spinal fusion is the most commonly used fixation technique for the surgical treatment of vertebral disorders. However, the instrumentation of the thoracic spine using this technique continues to be controversial. The objective of the present study was to determine the morphometric characteristics of the thoracic pedicle and to establish how these characteristics vary with gender and age. Two hundred thoracic spines (4800 thoracic pedicles) from individuals of known gender and age were analyzed (in accordance with the order of vertebrae). The spines were divided into six groups according to age and gender. The horizontal and vertical diameters of the thoracic pedicle were determined for each piece. The mean and standard deviation of each variable were determined, and differences between age groups for each gender were evaluated using parametric correlation tests. The pedicle diameters of men and women differed significantly for most groups (P < 0.05). The horizontal diameters decreased from T1 to T5 and increased up to T12. The vertical diameter followed a cephalocaudal pattern of development from T1-T12. The pedicle diameters decreased with increasing age in women, while the opposite trend was observed in men. In men, the dimensions of the thoracic spine pedicle increase with increasing age; in women, they decrease. These differences should be taken into account when selecting the appropriate pedicle screw.

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Section: General and Intersegmental Observationssupporting

confidence: 78%

Section: Introductionmentioning

confidence: 99%

Age‐ and gender‐related variations in morphometric characteristics of thoracic spine pedicle

et al. 2013

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“…Islam et al (1994, 1996) stated that the diameter of the screw should be wider than the minimal cancellous diameter and smaller than the minimal external diameter. Some authors have shown that a bony bridge of at least 0.5 mm should be available on both medial and lateral sides of the screw to make sure the screw can penetrate the pedicle safely (McLain et al, 2002; Liau et al, 2006; Yusof et al, 2006).…”

Section: Discussionmentioning

confidence: 99%

Evaluation of thoracic pedicle morphometry in a Chinese population using 3D reformatted CT

et al. 2011

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The aim of this study was to investigate the detailed three-dimensional morphology of the pedicles from T1 to T12 in 120 Chinese patients using a light-speed Vct CT (General Electric). After reformatting the original images, the following parameters were studied: outer pedicle width (OPW), outer pedicle height (OPH), pedicle chord length (PCL), pedicle cortical thickness (PCT) of the isthmus, and transverse pedicle angle (TPA). The mean outer pedicle width, outer pedicle height, and pedicle chord length were significantly smaller in females than in males at all levels (P < 0.01). The percentage of outer pedicle width ≤ 5.0 mm and ≤ 4.5 mm was high at mid-thoracic pedicles. No significant differences were found in transverse pedicle angle and pedicle cortical thickness in males and females. Pedicle cortical thickness was significantly thinner in patients over 50 years old compared with patients below 50 years old at most levels. The results showed that a screw of larger than 4.5 mm would be too large for mid-thoracic segments in Chinese population, especially for female patients. Considering the amount of variation between individuals and the complicated structure of the thoracic pedicles, the use of the transpedicular screw fixation must be individualized for each patient and based on detailed preoperative assessment. Reformatted CT assessment is essential before this procedure is performed.

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“…However, there are indications for surgical treatment in fractures with severe loss of vertebral body height with canal compression, neurological deficit and kyphotic deformity [17,18]. The main purpose of surgical treatment is to protect or improve the neurological status, to provide stability, to correct the deformity, and to prepare the ground for early rehabilitation [17,19].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Traumatic Vertebra and Rib Fractures

DUMANLI¹,

Aydın²,

Gencer³

2022

J Med Res Surg

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Background: In our study, we aimed to examine the relationship between trauma-related thoracic vertebral fractures and/or rib fractures location, age and gender. Methods: Between January 1, 2020 and December 31, 2020, 100 patients with trauma-related thoracic vertebral fracture and/or rib fracture were included in the study. Rib fractures and thoracic vertebral fractures were analyzed according to age, gender, level and fracture type. The correlation between rib and vertebral fractures was investigated. Results: 72% of the patients were male and 28% were female, mean age was 48.49 ± 18.83. Thoracic vertebral corpus fractures were detected most frequently in T8 in 22 patients and in T1 in at least 1 patient. Spinous process fracture was found to be highest in T2 with 9 patients, and 1 patient each in T5, T6, and T12. Transverse processes fracture was seen in T9 with a maximum of 5 patients. Rib fractures were observed more frequently on the right. Displaced rib fractures were most common in the 6th and 7th ribs, and non-displaced rib fractures were observed in the 5th ribs with 9 patients. Left rib fractures were most common in the 5th rib, with 6 displaced patients and 8 non-displaced patients. When the thoracic vertebral fractures and rib fractures were examined depending on the age variable, it was determined that the fractures in the T2 spinous, T3 spinous, T5 corpus and T8 vertebral corpus, and rib fractures in the right 4,6,8,10 and left 2 and 4 differ depending on the age variable (p<0.05). When thoracic vertebral fractures and rib fractures were analyzed depending on gender, a correlation was found between T7 vertebral body fractures and left 6th rib fractures (p<0.05). Conclusion: The coexistence of vertebral and rib fractures should be kept in mind in trauma patients, and plans for diagnosis and treatment should be made accordingly.

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Clinical importance of the minimal cancellous diameter of lower thoracic and lumbar vertebral pedicles

Cited by 4 publications

References 18 publications

Age‐ and gender‐related variations in morphometric characteristics of thoracic spine pedicle

Age‐ and gender‐related variations in morphometric characteristics of thoracic spine pedicle

Evaluation of thoracic pedicle morphometry in a Chinese population using 3D reformatted CT

Evaluation of Traumatic Vertebra and Rib Fractures

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