Advanced Multi-Axis Spine Testing: Clinical Relevance and Research Recommendations.

Area of Science:

• Orthopedics
• Biomedical Engineering
• Spinal Biomechanics

Background:

• Back pain and spinal degeneration are prevalent, leading to substantial healthcare expenditures.
• Surgical interventions for spinal degeneration do not consistently yield superior outcomes compared to non-surgical options.
• Psychosocial factors and spinal complexity influence back pain and treatment success.

Purpose of the Study:

• To review clinical and basic research on spinal degeneration.
• To recommend strategies for enhancing translational research in spinal care.
• To explore advancements in predicting spinal instrumentation performance.

Main Methods:

• Literature synthesis from clinical and basic research perspectives.
• Analysis of current clinical imaging and multi-axis testing capabilities.
• Examination of in-vivo kinematics and loading in conjunction with in-vitro testing.

Main Results:

• Advanced testing methods combining in-vivo and in-vitro data show promise for predicting spinal instrumentation performance.
• Recreating the in-vivo environment in laboratory settings is crucial for accurate biomechanical assessment.
• Physiological preload is a critical factor in evaluating spinal biomechanics.

Conclusions:

• Successful surgical treatment of degenerative spinal conditions necessitates a multidisciplinary approach.
• In-vitro testing should emulate the in-vivo environment as closely as possible, including physiological preload.
• Future research should link surgical procedures to outcomes across all anatomical planes for better motion and stability data.