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Medulla Oblongata, Simplified Sections Of Internal Structure

Medulla Oblongata, Simplified Sections Of Internal...

This video is part of a playlist of videos on the internal structure of the brain stem. Internal structure at the following section levels is described: - Level of inferior olivary nucleus (open medulla) - Level of medial lemniscal decussation (closed medulla) - Level of the decussation of pyramids (closed medulla) - Spinal cord For each fiber tract the location, function, origin and destination are summarized. Each nucleus is identified in terms of location, function and connections. Thus the session correlates anatomical structures seen in the medulla with those of the pons, midbrain and spinal cord. For this purpose a section of the spinal cord has also been added. After completion of this video session, it is expected that you will be able to develop a three dimensional picture of the gross anatomy of the medulla oblongata and its internal structure. Locate the positions of cranial nerve nuclei and the paths taken by the major ascending and descending nerve tracts, assess the signs and symptoms presented by the patient and identify the exact location of a lesion affecting the brain stem. Correlate the signs and symptoms of medial and lateral medullary (Wallenberg) syndromes with the nuclei and nerve tracts involved by the vascular lesions. Presented and edited by Dr. Akram Jaffar, Ph.D.

Angle Recession Glaucoma - New Microtrack Operation

Angle Recession Glaucoma - New Microtrack Operation

This is a video case of angle recession glaucoma - new microtrack operation.

Colon Anastomosis Neovascularization

Colon Anastomosis Neovascularization

The video presented above shows a neovascularization process present in colon anastamosis.

Minimal Invasive Management of the Necrotic Immature Root

Minimal Invasive Management of the Necrotic...

In this video dr Antonis Chaniotis presents a case of necrotic immature root (43 y.o patient). Minimal invasive management was implemented. The tooth was obturated with MTA. Video thanks to dr Antonis Chaniotis.

Ankle Fracture Surgery Video

Ankle Fracture Surgery Video

Ankle Fracture Surgery - Stryker 'VariAx Fibula' plating system The video shows how to fix a distal fibular fracture. Doctor describes the injury and shows the equipment used to perform the surgery. The ability to tell patients that they will not see or feel the plate on the outside of their ankle is important, especially smaller patients with thinner ankles. This patient had a very common ankle inversion injury that resulted in both an oblique fracture of the distal fibula and torn ankle ligaments. During the first ankle arthroscopic procedure, the anterior talofibular ligament was found to be completely torn, but still attached to the distal fibula. Debris and some osteochondral pathology was removed and then we performed the fibula fracture repair. The procedure went smoothly, the plate was conformed to the patients unique fibula shape, fracture position and then the anterior talofibular ligament was repaired with the final Modified Brostrom procedure. Post operatively, these ankle fracture patients will be non weight bearing for 4-6 weeks, then partial weight bearing in a walking boot.

How to Read Knee MRI of Medial Meniscus Tear

How to Read Knee MRI of Medial Meniscus Tear...

Colorado knee surgeon, Dr. Robert LaPrade details the specifics on how to read knee MRI of medial meniscus tear. There are different types of meniscus tears and a horizontal cleavage tear occurs within the fibers of the meniscus and splits the meniscus in the top and bottom pieces. To begin, we start with a sagittal view on the lateral side. As we start to go more towards the midline we start to see the lateral meniscus. There is a dark appearance to it, so there is no evidence of disruption. As we scan further we see the ACL and PCL, which both look normal. Moving more towards the medial side of the knee there is evidence of signal changes in the medial meniscus. In this case, we see a complete white pass of fluid in the meniscus, which indicates that there is a horizontal cleavage tear. The next view is a coronal scan. As we course more posteriorly we can see the meniscus is in relatively good position, but we are starting to see increase signal in the body of the meniscus, which is indicative of a tear. All the way to the posterior medial aspect we can see signal intensity, which is consistent with the horizontal cleavage tear. The last view we look at is an axial image. In some cases it is challenging to see the tear within the meniscus from this view, but it is important to assess.

Failed Traumatic Glaucoma Surgery - Resurgery

Failed Traumatic Glaucoma Surgery - Resurgery

The field of glaucoma surgery is diverse and complicated. We do something to succeed, but many a times the success eludes us. Resurgery is easy if you have not done extensive dissections on the first attempt. This patient with angle recession underwent Microtrack filtration, which failed within one month. Trauma debris or inflammation might have closed the track. This time two tracks are made and MMC deposited under the conjunctiva.

Dermoid Limbus Ablation with Fugo Blade

Dermoid Limbus Ablation with Fugo Blade

A large limbal dermoid is wiped off with Fugo blade, without burning, without charring. Postoperative reaction is nil with Fugo blade surgery.

Surgery of Severe Ptosis, Singh Technique

Surgery of Severe Ptosis, Singh Technique

A case of severe ptosis, operated by Singh orbital approach. The surgery is easy, no tissue is removed, only rearranged. There are minimal chances of lagophthalmos. Recovery is fast. The patient wants to go home after 3 hours, but I detain him for 24 hours at least. The current techniques anchors the Muller muscle and pulls forwards the floating LPS wrapped in tenon capsule. It is more comfortable to me with the recent modification of technique.


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