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Extremity, Lower (Leg) Muscles

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Lower extremity musculature: thigh, leg, ankle, foot.

72 files

  1. Free

    Left Thigh Muscle Model 3D Printable STL File Converted from CT Scan

    This is the normal left thigh muscle model of a 56 year old male with contralateral anterior thigh pleomorphic leiomyosarcoma. This is an STL file created from DICOM images of his CT scan which may be used for 3D printing.
     
    The thigh is divided into three compartments: the anterior, posterior, and adductor. The anterior compartment contains the “quadriceps muscles”, made up of the vastus lateralis, vastus medialis vastus intermedius, and rectus femoris, and the sartorius. These muscles are innervated by the femoral nerve (L3-L4), and act to extend the leg. The Sartorius muscle originates at the ASIS and crosses anterior to the quadriceps muscle to insert on the medial tibia in the pes anserinus. The posterior compartment contains the “hamstrings”, made up of the semitendinosus, semimembranosus, and short and long heads of the biceps femoris. These muscles act to flex the leg. All of these muscles are innervated by the sciatic nerve (tibial division) except for the short head of the biceps femoris, which is innervated by the sciatic nerve (peroneal division). The adductor compartment contains the adductor longus, adductor brevis, adductor magnus, and gracilis, which act to adduct the thigh. These muscles are innervated by the obturator, and the adductor magnus has dual innervation with the sciatic nerve. In addition, the obturator externus (a thigh external rotator) and pectineus muscle (thigh flexor and adductor) are located within this compartment.
     
    This model was created from the file STS_014.

    8 downloads

       (0 reviews)

    0 comments

    Updated

  2. Free

    Left Knee Muscle Model 3D Printable STL File Converted from CT Scan

    This is the normal left knee muscle model of a 56 year old male with right anterior thigh pleomorphic leiomyosarcoma. This is an STL file created from DICOM images of his CT scan which may be used for 3D printing.
     
    The knee is composed of 3 separate joints: two hinge joints (medial and lateral femorotibial joints), and one sellar, or gliding, joint (the patellofemoral joint). These also compose the three compartments of the knee: medial, lateral, and patellofemoral. Although the knee is thought of as a hinge joint, it actually has 6 degrees of motion: extension/flexion, internal/external rotation, varus/valgus, anterior/posterior translation, medial/lateral translation, and compression/distraction. In order to provide stability to this inherently unstable knee, static and dynamic stabilizers surround the knee, including muscles and ligaments.
     
    On the medial aspect of the knee, the static stabilizers consist of the superficial and deep medial collateral ligaments (MCL) and the posterior oblique ligament (POL). The dynamic stabilizers are the semimembranosus, vastus medialis, medial gastrocnemius, and pes tendons (semitendinosus, gracilis, and sartorius). The lateral stabilizers are best known as the posterolateral corner, and consist of the static stabilizers (lateral collateral ligament (LCL), iliotibial band (ITB), arcuate ligament), and dynamic stabilizers (popliteus, biceps femoris, lateral gastrocnemius). Inside the joint, the anterior cruciate ligament provides resistance to anterior tibial translation varus, and internal rotation, whereas the posterior cruciate ligament provides resistance to posterior tibial translation, varus, valgus, and external rotation.
     
    This model was created from the file STS_014.

    4 downloads

       (0 reviews)

    0 comments

    Updated

  3. Free

    Normal Right Foot and Ankle Muscle Model 3D Printable STL File Converted from CT Scan

    This is the normal right foot and ankle muscle model of a 56-year-old male with right anterior thigh pleomorphic leiomyosarcoma. This is an STL file created from DICOM images of his CT scan which may be used for 3D printing.
     
    The primary motions of the ankle are dorsiflexion, plantarflexion, inversion, and eversion. However, with the addition of midfoot motion (adduction, and abduction), the foot may supinate (inversion and adduction) or pronate (eversion and abduction). In order to accomplish these motions, muscles outside of the foot (extrinsic) and muscles within the foot (intrinsic) attach throughout the foot, crossing one or more joints.
     
    Laterally, the peroneus brevis and tertius attach on the proximal fifth metatarsal to evert the foot. The peroneus longus courses under the cuboid to attach on the plantar surface of the first metatarsal, acting as the primary plantarflexor of the first ray and, secondarily, the foot. Together, these muscles also assist in stabilizing the ankle for patients with deficient lateral ankle ligaments from chronic sprains. Medially, the posterior tibialis inserts on the plantar aspect of the navicular cuneiforms and metatarsal bases, acting primarily to invert the foot and secondarily to plantarflex the foot.  The flexor hallucis longus inserts on the base of the distal phalanx of the great toe to plantarflex the great toe, and the flexor digitorum inserts on the bases of the distal phalanges of the lesser four toes, acting to plantarflex the toes. The gastrocnemius inserts on the calcaneus as the Achilles tendon and plantarflexes the foot. Anteriorly, the tibialis anterior inserts on the dorsal medial cuneiform and plantar aspect of the first metatarsal base as the primary ankle dorsiflexor and secondary inverter. The Extensor hallucis longus and extensor digitorum longus insert on the dorsal aspect of the base of the distal phalanges to dorsiflex the great toe and lesser toes, respectively.
     
    This model was created from the file STS_014.

    26 downloads

       (0 reviews)

    0 comments

    Updated

  4. Free

    Right Leg and Foot Normal Anatomy Muscle Model STL File Converted from CT Scan for 3D Printing

    This is the normal right leg muscle model (including foot) of an 82-year-old male. This is an STL file created from DICOM images of his CT scan which may be used for 3D printing.
     
    The lower leg is divided into four muscle compartments: the anterior, lateral, superficial posterior, and deep posterior compartments.  The anterior compartment is made from the dorsiflexors, including the tibialis anterior, extensor hallucis longus (EHL), extensor digitorum longus (EDL) and peroneus tertius, which are innervated by the deep peroneal nerve. The lateral compartment includes the peroneus longus and peroneus brevis, which assist in foot eversion and are innervated by the superficial peroneal nerve. The superficial posterior compartment include the gastrocnemius, soleus, and plantaris, which assist in plantarflexion and are innervated by the tibial nerve.  The deep posterior compartment is made up of the popliteus, flexor hallucis longus (FHL), flexor digitorum longus (FDL), and tibialis posterior, which mostly assist in plantarflexion and are innervated similarly by the tibial nerve.
     
    This file was created from the file STS_013.

    12 downloads

       (0 reviews)

    0 comments

    Updated

  5. Free

    Right thigh soft tissue sarcoma 3D printable STL file converted from a CT scan

    This is a case of 56-year old female patient with right thigh swelling, histo-pathology revealed it to be solitary fibrous tumor of the right thigh with intermediate grade of malignancy. MRI and PET scan were done for this patient after the initial diagnosis by 3 and 36 days respectively. Her treatment plan included radiotherapy and surgical resection of the tumor combined. upon 637 days of follow up , the patient showed no evidence of disease (NED). This STL file had been created from a CT scan DICOM dataset and is availabe for medical 3D printing .

    3 downloads

       (0 reviews)

    0 comments

    Updated

  6. Free

    Full scan - processed

    Full scan - processed
    lower, limb, tigh, knee, muscle, quadriceps, gluteus, 3dmodel, print,

    3 downloads

       (0 reviews)

    0 comments

    Updated

  7. Free

    Trimmed body - processed

    Trimmed body - processed
    lower, limb, tigh, knee, muscle, quadriceps, gluteus, 3dmodel, print

    4 downloads

       (0 reviews)

    0 comments

    Updated

  8. Free

    Lower body - processed

    Lower body - processed
    lower, limb, tigh, knee, muscle, quadriceps, gluteus, 3dmodel, print

    1 download

       (0 reviews)

    0 comments

    Updated

  9. Free

    Both legs - processed

    Both legs - processed
    lower, limb, tigh, knee, muscle, quadriceps, gluteus, 3dmodel, print

    3 downloads

       (0 reviews)

    0 comments

    Updated

  10. Free

    Right thigh muscles above knee - processed

    Right thigh muscles above knee - processed
    lower, limb, tigh, knee, muscle, quadriceps, gluteus, 3dmodel, print

    1 download

       (0 reviews)

    0 comments

    Updated

  11. Free

    Instructables 3D model of leg muscles - processed

    Instructables 3D model of leg muscles - processed

    4 downloads

       (0 reviews)

    0 comments

    Updated

  12. Free

    Knee_2 - processed

    Knee_2 - processed

    0 downloads

       (0 reviews)

    0 comments

    Updated

  13. Free

    Knie - processed

    Knie - processed, knee, lower, limb, stl, muscle, bone, quadriceps, patella,ligaments
    tendons
     

    1 download

       (0 reviews)

    0 comments

    Updated

  14. Free

    Muscles and tendons of the foot and ankle

    This 3D printable STL file contains a model of the right foot was derived from a real medical CT scan. It shows in detail the musculature, tendons, and ligaments of the foot and ankle. The anatomy is normal, and was derived from the foot of a 60 year old woman.
    This model was created using the democratiz3D free online 3D model creation service.
     
    STS_010 legs

    69 downloads

       (0 reviews)

    0 comments

    Updated

  15. Free

    Muscles of the knee

    This 3D printable STL file contains a model of the right knee was derived from a real medical CT scan. It shows in great detail the normal musculature of the knee joint, including the quadriceps and hamstring muscle groups, and calf musculature.
    This model was created using the democratiz3D free online 3D model creation service.
     
    STS_010

    21 downloads

       (0 reviews)

    0 comments

    Updated

  16. Free

    Tutorial right thigh - processed

    Tutorial right thigh - processed, stl, lower, limb, stl, tigh, muscle, quadriceps, gluteus, 3dmodel

    9 downloads

       (0 reviews)

    0 comments

    Updated

  17. Free

    Muscles of the legs in a 64 year old man

    This 3D printable STL file contains a model of the legs was derived from a real medical CT scan. Its shows the muscles of the legs in great detail. Part of the table that the patient was scanned on is also included in the model and can be easily removed prior to 3D printing.
    This model was created using the democratiz3D free online 3D model creation service.
    STS006

    5 downloads

       (0 reviews)

    0 comments

    Updated

  18. Free

    Muscles and ligaments of the knee in a 64 year old man

    This 3D printable STL file contains a model of the muscles around the knee of a 64 year old man was derived from a real medical CT scan.
    This model was created using the democratiz3D free online 3D model creation service.
    STS006
     

    4 downloads

       (0 reviews)

    0 comments

    Updated

  19. Free

    Ligaments and tendons of the foot in a 64 year old man

    This 3D printable STL file contains a model of the muscles, ligaments, and tendons of the thigh and knee of a 64 year old man was derived from a real medical CT scan.
    This model was created using the democratiz3D free online 3D model creation service.
    STS006

    2 downloads

       (0 reviews)

    0 comments

    Updated

  20. Free

    Muscles of the thigh and knee in a 64 year old man.

    This 3D printable STL file contains a model of the muscles of the thigh and knee of a 64 year old man was derived from a real medical CT scan.
    This model was created using the democratiz3D  3D model creation service
    STS006

    4 downloads

       (0 reviews)

    0 comments

    Updated

  21. Free

    Muscles and soft tissues of the knee, with synovial sarcoma tumor

    This 3D printable STL model of the muscles and soft tissues of the knee was derived from the CT scan of a 22 year old female. The patient has a synovial sarcoma tumor involving the lateral thigh, in the vastus lateralus muscle near the attachment point at the knee.
     
    This model was created with the democratiz3D free online conversion tool.
     
    STS_004 0

    14 downloads

       (0 reviews)

    0 comments

    Updated

  22. Free

    Muscles of the legs

    This highly detailed 3D printable model of the musculature of the legs was derived from the CT scan of a 22 year old female. It shows all major muscle groups.
     
    This model was created with the democratiz3D free online conversion tool. 
     
    STS_004 0

    26 downloads

       (0 reviews)

    0 comments

    Updated

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  • File Reviews

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  • Recent Forum Posts

    • Hi Mike - starting with Cone beam CT files.  Will play with Hounsfield settings next time.  For this particular case I learned enough on Slicer and Meshmixer to get the job done. 
    • You are diving into the deep topic of medical imaging scans for 3D printing. I wrote a blog article on how to get the most out of your scan here. Take a look as it is very helpful.   3mm is not bad for a CT scan for 3D printing.  In order to understand why the radiology department created 3 mm slices, you need to understand how CT scans work. Modern CT scanners do not acquire data in slices. Rather, the acquisition is helical. The patient moves in the scanner on the Z axis at a fixed speed, while the x-ray tube spins around that axis during acquisition. As a result, relative to the body, the x-ray tube moves around like a helix, i.e. corkscrew. The raw data from this acquisition is stored in memory in the CT scanner. It is then reconstructed into flat slices that can be of any thickness anywhere from 0.5 mm to 5 mm.   Thinner slices are not always better however. There is a fixed number of x-ray photons that were acquired during the scan. When the slices are created after the fact, the data that those photons created is spread among the slices. If you have a lot of very thin slices then there are few photons per slice. Just like with a handheld camera when you shoot in low light, having a low number of photons results in a grainy image. The exact same things happen with a CT scanner. Thin slices tend to be very grainy and it can be difficult to detect abnormalities when the image quality is poor. Thicker slices on the other hand are fewer in number and have more photons per slice and thus are less grainy. Think of a nice photograph from a handheld camera on a bright sunny day. There are so many photons to make the image, the image is crystal clear. Thicker slices, while giving a higher quality image, are also thicker, and very small structures are harder to see.   Therefore, if you had a CT scan and reconstructed 0.5 mm slices, those images would be much grainier and of lower quality than if you had reconstructed with 5 mm slices. When the scan is being taken the radiologist determines what slice thickness is the best for diagnosing the problem at hand. If you're getting a CT scan of the abdomen for appendicitis, you will get 5 mm slices. If you have a problem with your middle tier and are getting a CT scan of the mastoid, you'll probably get 0.5 mm slices.   It should be noted that the raw data from the scan acquisition takes up a lot of memory. While the reconstructed slices are saved in the hospitals radiology system, the raw data from the scan is stored on the physical scanner itself. Typically after a few days that data is purged to make room for new scan data. So, after a few days it is not possible to generate any new slices from the scan, as the raw data has been purged.   My guess is that 3 mm slices is as good as you are ever going to be able to get from your scan. To reduce the stairstep artifact, run a smoothing algorithm on your model. This should reduce that appearance.   I hope this helps   Dr. Mike    
    • 1) Nothing in this forum should be considered medical advice. 2) The scan shows some extent of pectus excavatum. Heart is a bit displaced as a result. 3)  Evaluation of the heart itself is poor because the scan was not protocoled to examine the heart (i.e. no ECG gating). My guess is they were looking for PE, and there is no obvious one.   Good luck
    • If you increase the threshold value (150->250 Hounsfield units), that will tend to include less bone in the model. If decrease it, more bone will be included.    Just want to check -- are you starting with a CT or an MRI. CTs work better.   Hope this helps.   Dr. Mike
    • I use 3D slicer and the segmentation module. It takes a little time to get familiar with the tools, but they can be pretty powerful.   I just did this kidney yesterday, including the kidney tissue, renal collecting system, artery and vein.    FYI, we are building the ability to automatically segment organs into democratiz3D. Right now it only supports creation of bone models, but in the future auto segmentation of organs will be a feature.    Hope this helps,   Dr. Mike
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