| 제목 |
Immobilization Effect and Abdominal Pressure of Newly-Developed Lumbosacral Spinal Orthosis |
| 소속 |
Veterans Health Service Medical Center Seoul, Department of Rehabilitation Medicine1, Veterans Health Service Medical Center Seoul, Veterans Medical Research Institute2, Veterans Health Service Medical Center Seoul, Center of Prosthetics and Orthotics3 |
| 저자 |
Hee Dong Shin1*, Hee Seung Yang1†, Kyung Soo Jeon1, Soo Woong Jang1, Yun kyung Lee1, Young Lee2, Seul Bin Na Lee2, Dong Young Ahn3, Woo Sob Sim3, Min Cho3, Kyu Jik Cho3, Dong Beom Park3, Kwan Soo Park3 |
Objective:
We developed a new lumbosacral orthoses (LSO) that overcomes the limitations of existing LSO.
We evaluated the efficacy of a newly-developed spinal orthosis (V-LSO) by comparing the stabilizing effect, abdominal pressure, and comfort of 3 different semirigid LSOs (classic LSO, V-LSO, and Cybertech®) during various body movements.
Methods:
Thirty healthy volunteers (23–47 years, 24 males, 6 females) were selected. A dual inclinometer measured the range of motion (ROM) while the participants performed flexion/extension and lateral flexion of the lumbar spine with 3 LSOs. The LSO’s pressure on the abdominal surface was measured using 9 pressure sensors while lying, sitting, standing, flexion/extension, lateral flexion, axial rotation, and lifting a box. Comfort and subjective immobilization were analyzed by a questionnaire.
Results:
V-LSO had a statistically significant effect on flexion over Cybertech®. No significant differences were noted during extension and lateral flexion between the 3 LSOs. The abdominal pressure showed no significant differences while supine. While sitting, standing, and lifting a box, the mean abdominal pressure for V-LSO were significantly higher than those for CybertechⓇ. During lumbar flexion, the mean abdominal pressures for classic LSO and V-LSO were significantly higher than that of CybertechⓇ. For extension, lateral flexion and axial rotation, the abdominal pressure for V-LSO was significantly higher than those of classic LSO and Cybertech®.
In the subjective analysis, V-LSO and Cybertech® scored best for comfort.
Conclusion:
The V-LSO and Cybertech® were more comfortable than the classic LSO, and hence, may have improved compliance with decreased discomfort. V-LSO may be superior to the other LSOs in restricting lumbar movement and increasing intraabdominal pressure.
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Fig. 1. Three semirigid LSO were tested and compared with each other. (a) Classic LSO, (b) V-LSO, (c) cybertechⓇ, (a-2), (b-2), (c-2) front view and (a-3), (b-3), (c-3) back view. LSO : lumbosacral orthoses
Fig. 2. V-LSO (a) Internal orthoses, (b) External orthoses, (1) Back support, (2) Abdominal support. LSO : lumbosacral orthoses
Fig. 7. Proportion of each LSO to each questionnaire: averages and standard deviations (from left : Classic LSO, V-LSO, cybertechⓇ). LSO : lumbosacral orthoses
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