Ignite Creation Date:
2024-05-05 @ 11:51 AM
Last Modification Date:
2024-10-26 @ 9:15 AM
Study NCT ID:
NCT00155545
Status:
COMPLETED
Last Update Posted:
2012-12-10
First Post:
2005-09-09
Brief Title:
Influence of Leg Length Discrepancy on the Spinal Shape and Biomechanics in Functional and Idiopathic Scoliosis Patients
Sponsor:
National Taiwan University Hospital
Organization:
National Taiwan University Hospital
Study Overview
Official Title:
Influence of Leg Length Discrepancy on the Spinal Shape and Biomechanics During Static and Dynamic Activities in Functional and Idiopathic Scoliosis Patients
Status:
COMPLETED
Status Verified Date:
2012-11
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
None
Brief Summary:
The purposes of this study are to use motion analysis techniques to study the biomechanical interactions between the spine and the lower limbs in scoliosis patients with or without leg length discrepancy LLD during activity to investigate the effects of correction of LLD using foot orthosis on the functional scoliotic spinal curve and motion during functional activity and to test whether idiopathic scoliosis without LLD can be improved by artificially creating a leg length discrepancy with a foot orthosis
Detailed Description:
Scoliosis is one of the most common back deformities in children Idiopathic and functional secondary scoliosis are arguably the two most common types The etiology of idiopathic scoliosis has been studied in many aspects such as genetic factors skeletal muscle abnormalities neurological mechanisms and biomechanical factors while the common causes of secondary or functional scoliosis are leg length inequality and muscle spasm It is evident that biomechanical factors that involve the interactions of the musculoskeletal alignment and loading are closely associated with the development of both types of scoliosis
Leg length discrepancy LLD is defined as a condition in which paired limbs are unequal in length It is now generally accepted that LLD can lead to lumbar scoliosis and it is assumed that scoliosis caused by LLD can be removed if LLD is eliminated However no study has documented the effects of the correction of LLD on the functional scoliotic spinal curve and motion during functional activity Since spinal curve and motion have clear associations with leg length inequality one would wonder whether idiopathic scoliosis without LLD can be improved by artificially creating a leg length difference with an orthosis when spine surgery is not considered or in a less severe condition It has been shown that LLD and scoliosis have effects on pain force transmission and performance of motion Therefore the artificially created leg length difference may have negative effects even though the scoliosis is improved The benefits and disadvantages of using a foot orthosis to create artificial LLD in order to relieve idiopathic scoliosis require careful investigation Although the biomechanics of the spine or the lower extremities have been studied separately in the literature the biomechanical interactions between the spine and the lower limbs in scoliosis patients with or without LLD and the biomechanical effects of treatments using foot orthosis on these patients remain to be studied
Using motion analysis techniques the present study aims
1 to study the biomechanical interactions between the spine and the lower limbs in scoliosis patients with or without LLD during activity
2 to investigate effects of correction of LLD using a foot orthosis on the functional scoliotic spinal curve and motion during functional activity and
3 to test whether idiopathic scoliosis without LLD can be improved by artificially creating a leg length discrepancy with a foot orthosis The optimal heights of the foot orthosis for the later two objectives will also be determined It is hoped that the present study will lead to a better understanding of the mechanical interactions between the spine and the lower extremities in functional and idiopathic scoliosis patients and a better treatment for these patients
Leg length discrepancy LLD is defined as a condition in which paired limbs are unequal in length It is now generally accepted that LLD can lead to lumbar scoliosis and it is assumed that scoliosis caused by LLD can be removed if LLD is eliminated However no study has documented the effects of the correction of LLD on the functional scoliotic spinal curve and motion during functional activity Since spinal curve and motion have clear associations with leg length inequality one would wonder whether idiopathic scoliosis without LLD can be improved by artificially creating a leg length difference with an orthosis when spine surgery is not considered or in a less severe condition It has been shown that LLD and scoliosis have effects on pain force transmission and performance of motion Therefore the artificially created leg length difference may have negative effects even though the scoliosis is improved The benefits and disadvantages of using a foot orthosis to create artificial LLD in order to relieve idiopathic scoliosis require careful investigation Although the biomechanics of the spine or the lower extremities have been studied separately in the literature the biomechanical interactions between the spine and the lower limbs in scoliosis patients with or without LLD and the biomechanical effects of treatments using foot orthosis on these patients remain to be studied
Using motion analysis techniques the present study aims
1 to study the biomechanical interactions between the spine and the lower limbs in scoliosis patients with or without LLD during activity
2 to investigate effects of correction of LLD using a foot orthosis on the functional scoliotic spinal curve and motion during functional activity and
3 to test whether idiopathic scoliosis without LLD can be improved by artificially creating a leg length discrepancy with a foot orthosis The optimal heights of the foot orthosis for the later two objectives will also be determined It is hoped that the present study will lead to a better understanding of the mechanical interactions between the spine and the lower extremities in functional and idiopathic scoliosis patients and a better treatment for these patients
Study Oversight
Has Oversight DMC:
None
Is a FDA Regulated Drug?:
None
Is a FDA Regulated Device?:
None
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?:
None