Distribution of Cavitations as Identified with Accelerometry during Lumbar Spinal Manipulation
| Autor: | Gregory D. Cramer, Preetam Bora, Ray A. McKinnis, Scott Selby, P. K. Raju, Jerrilyn A. Cambron, Adam R. Habeck, Jennifer M. Dexheimer, J. Kim Ross |
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| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: |
Adult
Male Manipulation Spinal medicine.medical_specialty Adolescent Lumbar vertebrae Accelerometer Spinal manipulation Vibration Article law.invention Young Adult Lumbar McNemar's test Randomized controlled trial Double-Blind Method law Medicine Humans Orthodontics Lumbar Vertebrae business.industry Chiropractic Surgery Biomechanical Phenomena medicine.anatomical_structure Sound Female Chiropractics Manual therapy business |
| Popis: | This project determined the location and distribution of cavitations (producing vibrations and audible sounds) in the lumbar zygapophyseal (Z) joints that were targeted by spinal manipulative therapy (SMT).This randomized, controlled, clinical study assessed 40 healthy subjects (20 men, 20 women) 18 to 30 years of age who were block randomized into SMT (group 1, n = 30) or side-posture positioning only (group 2; control, n = 10) groups. Nine accelerometers were placed on each patient (7 on spinous processes/sacral tubercles of L1-S2 and 2 placed 3 cm left and right lateral to the L4/L5 interspinous space). Accelerometer recordings were made during side-posture positioning (groups 1 and 2) and SMT (group 1 only). The SMT was delivered by a chiropractic physician with 19 years of practice experience and included 2 high-velocity, low-amplitude thrusts delivered in rapid succession. Comparisons using χ(2) or McNemar test were made between number of joints cavitating from group 1 vs group 2, upside (contact side for SMT) vs downside, and Z joints within the target area (L3/L4, L4L5, L5/S1) vs outside the target area (L1/L2, L2/L3, sacroiliac).Fifty-six cavitations were recorded from 46 joints of 40 subjects. Eight joints cavitated more than once. Group 1 joints cavitated more than group 2 joints (P.0001), upside joints cavitated more than downside joints (P.0001), and joints inside the target area cavitated more than those outside the target area (P.01).Most cavitations (93.5%) occurred on the upside of SMT subjects in segments within the target area (71.7%). As expected, SMT subjects cavitated more frequently than did subjects with side-posture positioning only (96.7% vs 30%). Multiple cavitations from the same Z joints had not been previously reported. |
| Databáze: | OpenAIRE |
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