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The dynamic sagittal balance: Definition of dynamic spino-pelvic parameters using a method based on gait analysis
M Miscusi1, A Di Bartolomeo1, A Scafa1
1Department of NESMOS, Sapienza, University of Rome Sapienza, 000168, Rome, Italy.
World Neurosurgery: X
|February 24, 2023
Summary
Dynamic spino-pelvic parameters change during walking, altering sagittal balance. This study quantines these changes in healthy individuals, providing insights into gait biomechanics.
Area of Science:
- Biomechanics
- Spine Surgery
- Gait Analysis
Background:
- Sagittal balance is crucial for spine surgery assessment.
- Spino-pelvic parameters can fluctuate during ambulation.
- Understanding dynamic changes is vital for accurate pre-operative evaluation.
Purpose of the Study:
- To characterize spino-pelvic parameter behavior during walking in healthy subjects.
- To quantify dynamic sagittal balance variations.
- To correlate dynamic parameters with static measures and kinematic data.
Main Methods:
- Gait analysis of 60 healthy individuals using SMART-DX 500®.
- Assessment of static and dynamic spino-pelvic parameters, including pelvic tilt angle (PTA) and sagittal trunk shift (STS).
- Consideration of pelvic rotations, hip/trunk/knee movements during standing and walking.
Main Results:
- Dynamic parameters like PTA and STS demonstrated good-to-excellent reliability.
- Pelvic tilt angle during stance and swing phases showed low variability.
- Correlations found between static parameters (e.g., PI, PT) and dynamic measures, as well as trunk and knee movements.
Conclusions:
- Dynamic spino-pelvic parameters exhibit significant variations during walking.
- These dynamic changes influence sagittal balance assessment.
- The study highlights the importance of considering gait biomechanics in spinal evaluations.
