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Dorsal Variant Blister Aneurysm Repair

Dorsal Variant Blister Aneurysm Repair

"Dorsal Variant Blister Aneurysm Repair" William T. Couldwell, MD, PhD, and Roukoz Chamoun, MD Department of Neurosurgery, University of Utah, Salt Lake City, Utah Dorsal variant proximal carotid blister aneurysms are treacherous lesions to manage. It is important to recognize this variant on preoperative angiographic imaging, in anticipation of surgical strategies for their treatment. Strategies include trapping the involved segment and revascularization if necessary. Other options include repair of the aneurysm rupture site directly. Given that these are not true berry aneurysms, repair of the rupture site involves wrapping or clip--grafting techniques. The technique used is demonstrated in the video and is a modified clip--wrap technique using woven polyester graft material.

Endoscopic Endonasal Approach for Tuberculum Sellae Meningioma

Endoscopic Endonasal Approach for Tuberculum...

"Endoscopic Endonasal Approach for Tuberculum Sellae Meningioma" Juan C. Fernandez-Miranda, MD, Carlos Pinheiro-Nieto, MD, Paul A. Gardner, MD, and Carl H. Snyderman, MD Departments of Neurological Surgery and Otolaryngology, University of Pittsburgh Medical Center Here we present the technical and anatomical nuances needed to perform an endoscopic endonasal removal of a tuberculum sellae meningioma. The surgical anatomy of the suprasellar region is reviewed, including concepts such as the chiasmatic sulcus and limbus sphenoidale, medial and lateral optico-carotid recesses, and the paraclinoidal and supraclinoidal segments of the internal carotid artery. Emphasis is made in the importance of exposing the distal dural ring of the internal carotid artery and the precanalicular segment of the optic nerve for adequate intradural dissection. The steps for reconstruction are detailed, and include intradural placement of dural substitute and extradural placement of the nasoseptal flap. The nuances for proper harvesting, positioning, and reinforcement of the flap are described. No lumbar drain was used.

ASC  Abutment

ASC Abutment

This current case shows how to correct screw angulation after an implant is in a poor position. Video by dr Scott MacLean

Dental Implants - Angulated Screw Channels

Dental Implants - Angulated Screw Channels

Dr Scott MacLean shows what is new with digital implant dentistry. See the design and angulation of a screw retained dental implant crown. See how the omnigrip screw works to allow easy placement. Video by dr Scott MacLean

ASC Abutment - Why on an implant molar?

ASC Abutment - Why on an implant molar?

Dr Scott Mac Lean demonstrates how and why a angulated screw channel is used using NobelProcera technology. Video bny Dr. Scott MacLean

Arthroscopic Partial Medial Meniscectomy

Arthroscopic Partial Medial Meniscectomy

Chad Smalley, MD presents arthroscopic partial medial meniscectomy. Arthroscopic partial meniscectomy is the treatment of choice for meniscal tears. The ultimate effect of meniscectomy on the joint has been controversial. Arthroscopic partial meniscectomy gives good shorthand long-term clinical results when performed early and in patients below the age of 40 years for meniscal injuries.

Oval Canals - Endodontic Access Preparation

Oval Canals - Endodontic Access Preparation

The video presents endodontic access preparation to large oval canals in a molar tooth. Oval shaped canals are challenging cases in endodontic therapy. Video by Dr. Antonis Chaniotis.

Intentional Replantation Project Cancellation Because of VRF

Intentional Replantation Project Cancellation...

The video shows why an intentional replantation project was cancelled due to a vertical root fracture. Fracture line is visible on the external surface of the root after extraction. Video by Dr. Antonis Chaniotis.

Robotic Assisted Laparoscopic Radical Prostatectomy

Robotic Assisted Laparoscopic Radical Prostatectomy

Video demonstrates technique of robotic assisted laparoscopic radical prostatectomy for a patient with an enlarged prostate, more specifically large median lobe during robotic radical prostatectomy. For further details, please visit Author: Dr. Ali Moinzadeh.


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I consider MEDtube as an exciting tool facilitating education and communication between physicians around the world. This innovative approach allows for quick exchange of most interesting audio-visual educational materials.

Maria Siemionow,

Head, Microsurgery Training, Dept. of Plastic Surgery Cleveland Clinic

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Tokyo Medical University Hospital

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International Federation of Oto-Rhino-Laryngological Societies