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Biomechanics of spinal manipulative therapy
1Conservative Medicine, Chiropractic Division, Texas Back Institute, 6300 W. Parker Road, Plano, TX 75093, USA. jtriano@texasback.com
Summary
This study proposes a biomechanical classification system for spinal manipulative therapy (SMT) to address inconsistencies in research and clinical application. This framework aims to improve future studies on SMT effectiveness for conditions like back pain.
Area of Science:
- Biomechanics
- Manual Therapy
- Spinal Manipulation
Background:
- Scientific investigation into spinal manipulative therapy (SMT) began in 1975.
- SMT is used for acute/chronic low back pain, radicular pain, neck pain, and headaches.
- The field of SMT is often treated as homogeneous, leading to confusion due to procedural ambiguity.
Purpose of the Study:
- To develop an objective categorization system for SMT.
- To strengthen future research by defining SMT procedures more precisely.
- To aid in determining operating principles, applicability, and treatment effectiveness.
Main Methods:
- Literature synthesis of indexed biomechanical and medical literature.
- Selection of studies with quantitative mechanical characteristics of SMT techniques.
- Identification of studies on the biomechanics of vertebral segment buckling as a model for manipulable lesions.
Main Results:
- 31 articles provided quantitative biomechanical data on SMT methods.
- 7 studies quantified spinal buckling behavior.
- A matrix was developed to biomechanically characterize SMT procedures, with buckling behavior compared to clinical observations to hypothesize the manipulable lesion.
Conclusions:
- Current manual therapy systems lack objective triage for patient benefit or procedure selection.
- Biomechanical parameters offer a systematic characterization of manual procedures.
- This system can facilitate future research testing hypotheses of treatment effect from quantitatively defined procedures.