A morphometric study of human lumbar and selected thoracic vertebrae

Area of Science:

• Orthopedics
• Anatomy
• Biomedical Engineering

Background:

• Accurate morphometric data of human vertebrae is crucial for designing effective spinal implants.
• Variations in vertebral dimensions can impact implant fit and surgical outcomes.

Purpose of the Study:

• To provide detailed morphometric data of thoracic and lumbar vertebrae.
• To inform the design of patient-specific spinal implants.

Main Methods:

• Measurement of 27 dimensions from thoracic (T2, T7, T12) and lumbar (L1-L5) vertebrae.
• Utilized 30 human spinal columns from the Hamann-Todd Osteological Collection.
• Applied standardized morphometric analysis techniques.

Main Results:

• Pedicle symmetry was found to be lower in the cephalad (upper) regions compared to the caudal (lower) regions.
• Vertebral body height generally increases caudally, with a noted decrease in posterior height in the lower lumbar spine.
• Major and minor vertebral body diameters, along with major spinal canal diameter, showed a slight caudal increase, while minor spinal canal diameter remained relatively constant.

Conclusions:

• The morphometric data provides valuable insights into vertebral anatomy for spinal implant development.
• Understanding regional variations in vertebral dimensions is essential for optimizing implant design and surgical planning.