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This study is to evaluate the anatomical characteristics of spondylolisthesis patients using spine ultrasound imaging. The optimal angle of spinal needle insertion for spinal anesthesia in spondylolisthesis patients was compared to that of normal patients without abnormal spinal anatomy.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| normal lumbar spine | Patient without spondylolisthesis or significant spinal anatomic deformity. (ex> severe spondylosis, spinal stenosis, scoliosis, etc..) | ||
| spondylolisthesis | Spondylolisthesis patients, with whom the deformity is at just one level. The patients should not have any other significant spinal deformity. (ex> severe spondylosis, spinal stenosis, scoliosis, etc..) |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Spondylolisthesis | Other | Spondylolisthesis at a single level |
|
| Measure | Description | Time Frame |
|---|---|---|
| The predicted optimal angle of spinal needle insertion for spinal anesthesia at the level of spondylolisthesis. (alpha 1) | The needle insertion angle where the height of ligamentum flavum/dura mater complex(LFD) is measured the longest in ultrasound image. | Preanesthesia |
| The predicted optimal angle of spinal needle insertion for spinal anesthesia at the one upper level of spondylolisthesis. (alpha 2) | The needle insertion angle where the height of LFD is measured the longest in ultrasound image. | Preanesthesia |
| Measure | Description | Time Frame |
|---|---|---|
| The height of LFD measured by ultrasound image. | The height of LFD at the interlaminar space in midline and paramedian ultrasonography view at the angle of alpha 1 & alpha 2. | Preanesthesia |
| The depth from skin (needle insertion point) to LFD. |
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Inclusion Criteria:
Exclusion Criteria:
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Adult patients scheduled for elective orthopedic surgery in SNUH(Seoul national university hospital) with ASA physical status classification system I, II, III.
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| Name | Affiliation | Role |
|---|---|---|
| Jin-Tae Kim, MD, PhD | Seoul National University Hospital | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Seoul National University Hospital | Seoul | South Korea |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 34496754 | Derived | Kim Y, Yoo S, Park SK, Bae H, Lim YJ, Kim JT. Optimal angle of needle insertion for spinal anesthesia in patients with spondylolisthesis: an ultrasonographic study. BMC Anesthesiol. 2021 Sep 8;21(1):221. doi: 10.1186/s12871-021-01444-0. |
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| ID | Term |
|---|---|
| D013168 | Spondylolisthesis |
| ID | Term |
|---|---|
| D013169 | Spondylolysis |
| D055009 | Spondylosis |
| D013122 | Spinal Diseases |
| D001847 | Bone Diseases |
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The depth from skin to LFD at the interlaminar space in midline and paramedian ultrasonography view at the angle of alpha 1 & alpha 2.
| Preanesthesia |
| The depth from skin (needle insertion point) to posterior longitudinal ligament(PLL). | The depth from skin to PLL at the interlaminar space in midline and paramedian ultrasonography view at the angle of alpha 1 & alpha 2. | Preanesthesia |
| Patients' gender, age, height, weight, BMI, etc. | gender, age, height, weight, BMI | Preanesthesia |
| D009140 |
| Musculoskeletal Diseases |