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Found 61 results

  1. 64 downloads

    This anterior wedge compression fracture of a lumbar spine vertebral body was generated from real CT scan data and is thus anatomically accurate as it comes from a real person. It shows the loss of height in the anterior vertebral body when compared to the posterior part of the body. This type of fracture is common with forward flexion, such as a from a fall or motor vehicle accident. lumbar, spine, compression, fracture, 3d, model, bone, vertebrae, print, fracture, .stl, 3d, model, printable, lumbar, spine, intervertebral, disc, laminae, pedicle, This file was originally created by Dr. Bruno Gobbato, who has graciously given permission to share it here on Embodi3D. Modifications were made by Dr. Mike to make it suitable for 3D printing. The file(s) are distributed under the Creative Commons Attribution-NonCommercial-ShareAlike license. It can't be used for commercial purposes. If you would like to use it for commercial purposes, please contact the authors. Technical specs: File format: STL Manifold mesh: Yes Minimum wall thickness: 1 mm Triangles: 642201

    Free

  2. Version 1.0.0

    4 downloads

    This 3D printable STL model of the lumbar spine is normal except for degenerative changes in the posterior elements. STS_002. This model was created using the democratiz3D service. lumbar, spine, intervertebral, disc, body, laminae, transverse, spinous, process, foramen, pedicle, bone, 3d, model, .stl, printable, sacrum, vertebrae, coccyx, foramina, promontory,

    Free

  3. I was recently contacted by another doctor who asked if I could help him to create a 3D printed replicate of his spine to visualize pinched nerves in his low back and aid with planning a future back surgery. In order to work this doctor has to stand for long hours while performing surgical procedures. Excruciating low back pain had limited his ability to stand to only 30 minutes. As you can imagine, this means he couldn't work. Things only got worse after he had low back surgery. A CT scan of his lumbar spine (the low back portion of the spine) was performed. It showed that his fifth lumbar vertebra was partially sacralized. This means it looked more like a sacral vertebra than a lumbar vertebra. Was this causing his problem? On the image slices of the CT scan it was difficult to tell. How the Spine is Organized First, a word about the different vertebrae (bones) in the spine. There are four main sections of spinal bones. The seven cervical vertebrae are in the neck and support the head. They are generally small but flexible, and allow rotation of the head. The 12 thoracic vertebrae are in the chest. Their most distinctive characteristic is they all have associated ribs, which make up the rib cage. The five lumbar vertebrae are in the low back. These are large and strong, and designed for supporting lots of weight. They do not have associated ribs. The five sacral vertebrae are in the pelvis. In adults, they are fused together and effectively form a single bone, the sacrum. The coccyx, or tailbone, which is a tiny bone at the bottom end of the vertebral column, can be considered a fifth spinal section. This is the bone that is often injured when you fallen your behind. Figure 1 shows the different sections of the vertebral column. Figure 1. Sections of the vertebral column. Source:aimisspine.com Although the bones of the individual sections of the spine usually have their own unique features, it is not uncommon for vertebrae in one section to have features typically associated with an adjacent section. This is particularly true of the vertebrae that are immediately adjacent to a neighboring section. These hybrids are a mix between both sections, are called transitional vertebrae. Do you recall that only thoracic vertebrae have associated ribs? Occasionally the highest lumbar vertebra, L1, will have tiny ribs attached to it. This is a normal variant and is usually harmless. Radiologists who are interpreting medical scans need to be careful to not confuse an L1 vertebra which may have tiny ribs for the adjacent T12 vertebra which normally has ribs. Similarly, the lowest lumbar vertebra, L5, which is normally unfused, can exhibit fusion. As you recall, fusion is a characteristic of sacral vertebrae. A Congenital Spine Abnormality This was the situation with our physician. His lowest lumbar vertebra, L5, has partially fused with S1, the highest sacral vertebra. This condition is congenital. He has had it all his life. The fusion can have the side effect of creating a very narrow bony canal through which the L5 nerve roots can exit the spine. Normally, these nerve roots would have much more space as a large gap would exist between the normally unfused L5 and S1 vertebrae. Was this the problem? The CT scan showed the sacralization of L5, but it was difficult to get a sense for how tight the holes through which the nerves exit, the neural foramina, were. See Figures 2 and 3. Figure 2: Coronal CT image through the L5 and S1 vertebral bodies. Is this the cause of the problem? It is very difficult to get an intuitive sense of what is going on with these flat image slices. Figure 3: Image from Figure 2 with the neural foramina marked. Seeking help through Embodi3D The doctor contacted me through the Embodi3D website and asked if I could create a 3D model design and 3D print of his lumbar spine to help him and his team of spinal specialists understand his unique anatomy better. Of course, I was happy to help. The CT scan was of high quality and allowed me to extract the bones and metallic spinal fusion implants with little trouble. The individual nerves, however, were very difficult to see even on a high quality CT scan. I had to manually segment them one image at a time, which was a very tedious and time-consuming process. After fusing everything together, I had a very good digital model of the lumbar spine. I created some photorealistic 3D renders to illustrate the key findings. Figures 4 and 5 show the very tight L5-S1 bony neural foramina. The inter-vertebral disc sits within the gap between the two vertebral bodies, and you can see how a lateral bulge from this disc would significantly pinch these exiting nerve roots. Figure 4: Right L5 nerve root (yellow) exiting the tight neural foramen caused by the fused L5 and S1 lateral processes. Figure 5: Left L5 nerve root (yellow) exiting the tight neural foramen caused by the fused L5 and S1 lateral processes. Additionally, I showed that a bone screw that had been placed during the last surgery had partially exited the L4 vertebral body and was in very close proximity, and probably touching, the adjacent nerve root. Ouch! This can be seen in Figure 6. This may explain why the pain seem to get worse after the last surgery. Figure 6: Transpedicular orthopedic screw which has partially exited the L4 vertebral body and is in very close proximity or in contact with the right L3 nerve root. The Final 3D Printed Spine Model The doctor wanted his spine 3D printed in transparent material, so I used a stereolithographic printer with transparent resin. I printed the spine in two separate parts that could be separated and fit together. When separated, the nerves exiting through the neural foramina can be inspected from inside the spinal canal, which gives an added degree of understanding. Final pictures of the transparent 3D printed model are shown below. I just recently shipped the model to this doctor and don't yet know how his back problems will be resolved. With this 3D printed model in hand however, he will be able to have much more meaningful discussions with his spinal surgeons about the best way to definitively fix his low back problems. I hope that the 3D printed spine model will literally help to get this good doctor back on his feet again.
  4. Had some time over Memorial Day weekend so I downloaded Dr. Mike's Lumbar Spine model. Believe it or not, this was a 65 hour print on my Ultimaker 2! All in all, the print came out pretty well. I have a web cam watching over the printer and can monitor progress over my iPhone. I can also shut down the printer remotely if the printer goes haywire.
  5. Version 1.0.0

    6 downloads

    Lumbar Spine CT w/o contrast showing Scoliosis and symptoms of NC, lumbar,spine, ct, scan, without, contrast, coronal, body, transverse, spinous, vertebrae, scoliosis, psoas, aorta, atherosclerosis, kidney, inferior, cava, vein, pelvis, iliac, crest, sacrum, osteodegenerative, changes

    Free

  6. 297 downloads

    This 3D printable STL file and medical model of the lumbar spine was generated from real CT scan data and is thus anatomically accurate as it comes from a real person. It shows the detailed anatomy of the lumbar (lower back) spine, including the vertebral bodies, facets, neural foramina and spinous proceses. Download is free for registered members. This file was originally created by Dr. Bruno Gobbato, who has graciously given permission to share it here on Embodi3D. Modifications were made by Dr. Mike to make it suitable for 3D printing. The file(s) are distributed under the Creative Commons Attribution-NonCommercial-ShareAlike license. It can't be used for commercial purposes. If you would like to use it for commercial purposes, please contact the authors. Technical specs: File format: STL Manifold mesh: Yes Triangles: 509136

    Free

  7. Annabelle

    spine6

    Version 1.0.0

    5 downloads

    anotha spine, MRI, lumbar, spine, axial, T1, coronal, sagital, paraspinal, muscles, psoas, muscle, disc, body, vertebrae, without contrast

    Free

  8. Annabelle

    spine8

    Version 1.0.0

    1 download

    spine

    Free

  9. Annabelle

    spine5

    Version 1.0.0

    1 download

    another spine

    Free

  10. Version 1.0.0

    46 downloads

    This 3D printable STL file contains a model of the thoracic and lumbar spine was derived from a real medical CT scan of a 60 year old woman. It shows the spinal anatomy in great detail. This model was created using the democratiz3D free online 3D model creation service. STS007

    Free

  11. Version 1.0.0

    10 downloads

    This 3D printable STL file contains a model of the lumbar spine was derived from a medical CT scan. It shows a compression fracture at L5. This model was created using the democratiz3D 3D model creation service 0522c0878 L5fx

    Free

  12. Version 1.0.0

    16 downloads

    This 3D printable STL file contains a model of the lumbar spine derived from a CT. The spine is normal. This model was created using the democratiz3D 3D model creation service TCGA-CS-6185

    Free

  13. Version 1.0.0

    0 downloads

    This is a 3D printable STL model of the entire spinal column, including cervical, thoracic, and lumbar regions derived from a CT scan. STS_003. This model was created using the democratiz3D service.

    $9.99

  14. Version 1.0.0

    11 downloads

    This is a 3D printable STL model of a normal lumbar spine derived from a CT scan. This model was created using the democratiz3D service.

    Free

  15. Version 1.0.0

    4 downloads

    Arterielle - stl file processed stl, 3dmodel, bone, ribs, lumbar spine, CTA, kidneys, abdominal aorta, celiac artery, superior mesenteric artery, spine and ribs, vascular

    Free

  16. Version 1.0.0

    9 downloads

    testando arquivo dicom, ct with contrast, stl, heart, liver, gallbladder, liver, spleen, sigmoid colon, small bowel, caecum, stomach, portal vein, bladder, pubic,kidney, psoas muscle, kidney, lumbar, spine, spleen

    Free

  17. Version 1.0.0

    1 download

    Abdomen2 CTA - stl file processed

    Free

  18. Version 1.0.0

    0 downloads

    CT Scan Spondylolysis - stl file processed

    Free

  19. Version 1.0.0

    160 downloads

    The dorsal (thoracic) spine forms the middle portion of the vertebral column extending below the seventh cervical vertebra to above the first lumbar vertebra. The dorsal spine is formed by twelve vertebral bodies. The vertebrae forming the dorsal spine are unique in shape as they are the only vertebral bodies articulating with ribs. The lumbar spine represents the mid-lower segment of the vertebral column and is composed of five adjacent vertebrae. They are convex anteriorly to form a lumbar lordosis. The lumbar spine facet joints allows limited movements and rotation. The sacrum is the lower most segment of the vertebral column and also forms the posterior wall of the bony pelvis. The sacrum is formed by five fused sacral vertebrae. This model shows the origin of ribs, few of the cervical spines and the sacroiliac joint. The minimal tilt seen is likely positional rather that pathological. This 3D model was created from the file STS_036. The source CT scan used to create this model can be found here.

    Free

  20. Version 1.0.0

    4 downloads

    The lumbar spine represents the mid-lower segment of the vertebral column and is composed of five adjacent vertebrae. They are convex anteriorly to form a lumbar lordosis. The lumbar spine facet joints allows limited movements and rotation. Each lumbar vertebra is formed of: A body which is kidney shaped and is convex anteriorly while flattened posteriorly, pedicles and lamina, transverse processes, articular processes and a spinous process. This models shows lumbar spondylo-degenerative changes in the form of marginal osteophytic lipping. This 3D model was created from the file STS_037 The original CT examination can be reviewed at:

    Free

  21. Version 1.0.0

    45 downloads

    Whole Spine (Dorsal-Lumbar-Sacral) and Aorta NRRD file from CT Scan for Medical 3D Printing: The dorsal (thoracic) spine forms the middle portion of the vertebral column extending below the seventh cervical vertebra to above the first lumbar vertebra. The dorsal spine is formed by twelve vertebral bodies. The vertebrae forming the dorsal spine are unique in shape as they are the only vertebral bodies articulating with ribs. The lumbar spine represents the mid-lower segment of the vertebral column and is composed of five adjacent vertebrae. They are convex anteriorly to form a lumbar lordosis. The lumbar spine facet joints allows limited movements and rotation. The sacrum is the lower most segment of the vertebral column and also forms the posterior wall of the bony pelvis. The sacrum is formed by five fused sacral vertebrae.The sacrum is formed by fusion of five sacral vertebrae has three surfaces, a base and an apex. The body of the first segment is large and is similar to lumbar vertebra whereas the bodies of the next bones get progressively smaller, are flattened from the back, and curved to shape. The sacrum articulates with four other bones – iliac bones on either side, L5 above and coccyx below. It is tilted forward and curved with anterior concavity and posterior convexity allowing greater room for pelvic cavity. The curvature of sacrum varies in individuals. This model shows segment of the heart, the aorta and sacro-iliac joints. The CT scan is derived from the file ABD_LYMPH_001 The 3D bone model created from this scan can be reviewed at:

    Free

  22. Version 1.0.0

    91 downloads

    Whole body: chest, abdomen and pelvis The chest wall (thoracic cage) is composed by twelve pairs of ribs laterally and the sternum anteriorly. The ribs are attached to the dorsal vertebrae (thoracic spine) posteriorly and along their costal cartilage to the sternum. The thoracic cage main function is to protect the vital chest organs such as the heart and lungs. The cervical spine is the upper most spines forming the spinal column, extending from the skull base to the level of the thoracic vertebra (the spines with attached ribs). The cervical spines are usually seven and the main function is to support the skull and to protect the spinal cord. The dorsal (thoracic) spine forms the middle portion of the vertebral column extending below the seventh cervical vertebra to above the first lumbar vertebra. The dorsal spine is formed by twelve vertebral bodies. The vertebrae forming the dorsal spine are unique in shape as they are the only vertebral bodies articulating with ribs. The lumbar spine represents the mid-lower segment of the vertebral column and is composed of five adjacent vertebrae. They are convex anteriorly to form a lumbar lordosis. The lumbar spine facet joints allows limited movements and rotation. The bony pelvis is formed by 4 bones; a pair of hip bones, the sacrum and the coccyx. The bony pelvis supports the pelvic viscera and works to transmit force from the axial skeleton to the lower limbs. The two hip bones are related anteriorly by the symphysis pubis and posteriorly to the sacroiliac joints bilaterally. The CT scan is derived from the file STS_040 The 3D bone model created from this scan can be reviewed at: The 3D muscle model created from this scan can be reviewed at: The 3D skin model created from this scan can be reviewed at:

    Free

  23. Version 1.0.0

    21 downloads

    Whole body: chest, abdomen and pelvis The chest wall (thoracic cage) is composed by twelve pairs of ribs laterally and the sternum anteriorly. The ribs are attached to the dorsal vertebrae (thoracic spine) posteriorly and along their costal cartilage to the sternum. The thoracic cage main function is to protect the vital chest organs such as the heart and lungs. The cervical spine is the upper most spines forming the spinal column, extending from the skull base to the level of the thoracic vertebra (the spines with attached ribs). The cervical spines are usually seven and the main function is to support the skull and to protect the spinal cord. The dorsal (thoracic) spine forms the middle portion of the vertebral column extending below the seventh cervical vertebra to above the first lumbar vertebra. The dorsal spine is formed by twelve vertebral bodies. The vertebrae forming the dorsal spine are unique in shape as they are the only vertebral bodies articulating with ribs. The lumbar spine represents the mid-lower segment of the vertebral column and is composed of five adjacent vertebrae. They are convex anteriorly to form a lumbar lordosis. The lumbar spine facet joints allows limited movements and rotation. The bony pelvis is formed by 4 bones; a pair of hip bones, the sacrum and the coccyx. The bony pelvis supports the pelvic viscera and works to transmit force from the axial skeleton to the lower limbs. The two hip bones are related anteriorly by the symphysis pubis and posteriorly to the sacroiliac joints bilaterally. This 3D model was created from the file STS_040 The original CT examination can be reviewed at: The 3D muscle model created from this scan can be reviewed at: The 3D skin model created from this scan can be reviewed at:

    Free

  24. Version 1.0.0

    3 downloads

    The lumbar spine represents the mid-lower segment of the vertebral column and is composed of five adjacent vertebrae. They are convex anteriorly to form a lumbar lordosis. The lumbar spine facet joints allows limited movements and rotation. Each lumbar vertebra is formed of: A body which is kidney shaped and is convex anteriorly while flattened posteriorly, pedicles and lamina, transverse processes, articular processes and a spinous process. The sacrum is the lower most segment of the vertebral column and also forms the posterior wall of the bony pelvis. The sacrum is formed by five fused sacral vertebrae. The sacrum is formed by fusion of five sacral vertebrae has three surfaces, a base and an apex. The body of the first segment is large and is similar to lumbar vertebra whereas the bodies of the next bones get progressively smaller, are flattened from the back, and curved to shape. The sacrum articulates with four other bones – iliac bones on either side, L5 above and coccyx below. It is tilted forward and curved with anterior concavity and posterior convexity allowing greater room for pelvic cavity. The curvature of sacrum varies in individuals. The CT scan is derived from the file STS_040 The 3D bone model created from this scan can be reviewed at:

    Free

  25. Version 1.0.0

    3 downloads

    The lumbar spine represents the mid-lower segment of the vertebral column and is composed of five adjacent vertebrae. They are convex anteriorly to form a lumbar lordosis. The lumbar spine facet joints allows limited movements and rotation. Each lumbar vertebra is formed of: A body which is kidney shaped and is convex anteriorly while flattened posteriorly, pedicles and lamina, transverse processes, articular processes and a spinous process. The sacrum is the lower most segment of the vertebral column and also forms the posterior wall of the bony pelvis. The sacrum is formed by five fused sacral vertebrae. The sacrum is formed by fusion of five sacral vertebrae has three surfaces, a base and an apex. The body of the first segment is large and is similar to lumbar vertebra whereas the bodies of the next bones get progressively smaller, are flattened from the back, and curved to shape. The sacrum articulates with four other bones – iliac bones on either side, L5 above and coccyx below. It is tilted forward and curved with anterior concavity and posterior convexity allowing greater room for pelvic cavity. The curvature of sacrum varies in individuals. This 3D model was created from the file STS_040 The original CT examination can be reviewed at:

    Free

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