Browsing by Author "Yuksek, Hasan Husnu"

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    Morphologic Evaluation of the Coccyx in the Pediatric Population
    (Springer France, 2025) Meylani, Nevzat; Ten, Baris; Temel, Gulhan; Yuksek, Hasan Husnu; Comert, Ali Danyal; Beger, Burhan; Beger, Orhan
    Purpose This computed tomography study aimed to display the alteration in the coccyx morphology (its ossification process, dimension and angulation) in children with advancing age. Methods Pelvic radiologic scans of 180 children aged 1-18 years were retrospectively evaluated to observe changes in the coccyx morphology with age, and to measure the linear length (LL), curvilinear length (CLL), sacrococcygeal angle (SCA), and intercoccygeal angle (ICA). Results The present study divides the postnatal evolution of the coccyx into three phases as follows: (a) in the first stage when the coccyx is of the shortest, it is completely cartilage until the age of 2 (infancy period) and its first segment begins to ossify by the age of 3 (early childhood period), (b) in the second stage when the coccyx is of medium size, its first segment is completely ossified by the age of 6 (late childhood period) and the ossification of its all segments is completed from the age of 11 (prepubescent period), and (c) in the third stage when the coccyx is of the longest, it reaches to adult size (postpubescent period). Linear functions were calculated as y = 15.647 + 1.145 x age (p < 0.001, R-2 = 0.561) for LL, and as y = 16.829 + 1.243 x age (p < 0.001, R2 = 0.559) for CLL. Conclusion Considering that morphological features of the coccyx, such as ICA, can be used in the diagnosis of coccydynia, our dataset may facilitate the identification of children with suspected coccydynia.
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    Radiologic Anatomy of Pediatric Cervicothoracic Junction for Pedicle Screw Surgery
    (SpringerNature, 2025) Yaman, Zafer Kaan; Ten, Baris; Temel, Gulhan; Yuksek, Hasan Husnu; Comert, Ali Danyal; Beger, Burhan; Beger, Orhan
    Purpose To demonstrate age-dependent changes in dimensions of C6-T3 vertebrae in children for pedicle screw surgery. Methods Radiologic images of 180 pediatric subjects aged 1-18 years were evaluated retrospectively. Results In all vertebrae (C6-T3) at the cervicothoracic junction, the pedicle thickness (p < 0.001), pedicle axis length (p < 0.001), pedicle height (p < 0.001), spinal canal's transverse diameter (p < 0.001), spinal canal's sagittal diameter (p < 0.001) and interpedicular distance (p < 0.001) increased with advancing pediatric age (from one year to 18 years), but the transverse and sagittal pedicle angles decreased (p < 0.001). From C6 to T3, the pedicle axis length (p < 0.001) and sagittal pedicle angle (p < 0.001) increased proportionally, but the spinal canal's transverse diameter (p < 0.001) and transverse pedicle angle (p < 0.001) decreased proportionally. The pedicle height (p < 0.001) decreased from C6 to C7, but then increased until T3. The interpedicular distance (p < 0.001) increased from C6 to C7, but then decreased until T3. The pedicle thickness (p < 0.001) increased from C6 to T1, and then decreased up to T3. The spinal canal's sagittal diameter (p < 0.001) was statistically similar in C6 and C7, but then increased up to T2. Conclusion Our morphometric data regarding vertebral pedicle anatomy located at the cervicothoracic junction may be beneficial for surgeons to form a region-specific clinical strategy in children.