9. A Comprehensive Exploration Through CT-Guided Pedicle Morphometry of Lumbar Vertebrae in Pakistani Population
Athar Maqbool1, Zumirah Atiq1, Saman Ali1, Zarmeen Nadeem1, Sadia Safdar1
and Abdullah Atiq2
ABSTRACT
Objective: The aim of this study was to determine the dimensions of right & left pedicles of lumbar vertebrae of males and females by CT scan to reduce the risk of postoperative neurological complications while applying transpedicular screws.
Study Design: CT scan based Retrospective Cross Sectional Observational Study.
Place and Duration of Study: This study was conducted at the Radiology Department of M. Islam Teaching Hospital, Gujranwala, Pakistan, between December 2022 and November 2023.
Methods: This study was conducted on 47 patients (22 males & 25 females aged 18 to 70 years). Morphometric data of pedicles of lumbar vertebra was analyzed using CT Scan. Pedicle width (PW), pedicle height (PH), pedicle length (PL) and transverse pedicle angle (TPA) were studied.
Results: Pedicle width, in males, was minimum at right side of L1 while it was maximum at left side of L5. The mean pedicle height in males was 13.36 mm and in females was 11.76 mm. Pedicle length decreased in both males & females from L1 to L5. The greatest value of transverse pedicle angle was found to be 42.4º at right side of L5 in females. Value of transverse pedicle angle increased gradually from L1 to L5 in both males and females.
Conclusion: A detailed anatomical knowledge of lumbar spine is essential for designing implants and instrumentation and to reduce postop complications.
Key Words: Transpedicular screw, pedicle dimensions, lumbar vertebrae, CT scan