Meds 2010

Meds 2010

Le Survol du Tronc: Podcast

Le Podcast du cours «Le Survol du Tronc» a été mise à jour sur iAnatomie.com.

Prolapsed intervertebral disc


A prolapsed intervertebral disc most commonly affects the 20-55 year age group, and is most often seen at the L4/5 and lumbosacral levels. It may also affect the cervical discs, particularly at C5/6 and C6/7. The thoracic discs are rarely affected. Acute tearing or chronic degeneration of the posterior lamellae of the anulus fibrosus allows deformation and herniation of the softer nucleus pulposus. The disc most often prolapses just lateral to the posterior longitudinal ligament and can compress one or two spinal nerves unilaterally (Fig. 45.43). Much less commonly, the prolapse is central, in the midline posteriorly. The compression of neural structures may then be bilateral, affecting the cord itself or the whole cauda equina. If the damaged anulus ruptures completely, some of the nuclear tissue may escape into the vertebral and 'root' canals. This sequestrated material may migrate within the canals and cause nerve compression at spinal levels distant from that of the disc rupture. The disc material itself may have an irritative effect on the spinal nerve.


Figure 45.43 Posterolateral disc prolapse. (By permission from Moore K, Agur AMR 2002 Essential Clinical Anatomy, 2nd edn. Philadelphia: Lippincott Williams and Wilkins.)

Regarding the anatomy of the vertebral canal and intervertebral foramen in relation to disc prolapse, it is important to understand that one or both of two spinal nerves and their roots may be affected by a single prolapse, depending upon the exact site of the prolapse in the horizontal plane. At the level of each disc and foramen, there are two spinal nerves (and their roots) to consider: these are the exiting nerve and the traversing nerve (Macnab & McCulloch 1990) (Fig. 45.44). The nerve usually affected at lumbar levels is the traversing nerve, which crosses the back of the disc on its way to become the exiting nerve at the level below. Thus a lumbosacral (i.e. L5/S1) disc prolapse usually compresses the S1 nerve. However, a prolapse may affect the exiting nerve at its own level. This is especially likely if the prolapse is in the extraforaminal zone of the 'root' canal (p. 735), the so-called 'far lateral' prolapse. At cervical levels, because the roots and nerve leave the vertebral canal almost horizontally, the prolapse usually affects the exiting nerve. This nerve will still bear the number of the vertebra below the affected disc, because cervical nerves exit the canal above the pedicle of their numerically corresponding vertebra. Neurological presentation will include signs and symptoms of spinal nerve damage at the affected level. Thus pain and sensory loss will be dermatomal in distribution. Sensory changes usually precede motor loss.

Internal disruption of a lumbar intervertebral disc is more common than disc prolapse, and is now an increasingly recognized cause of back pain. Typically, the nucleus is decompressed and the inner lamellae of the anulus appear to collapse into it.


Figure 45.44 Exiting and traversing nerve roots. The upper root (open arrow) is the exiting root at this level: the lower (arrow) is the traversing root here, which becomes the exiting root at the level below. The dotted roots are traversing roots of the lower segment.

The Canadian Journal of Neurological Sciences

Issue:
Volume 30, Number 2 / May 2003

Pages:
152 - 154

Magnetic Resonance Image Findings and Surgical Considerations in T1-2 Disc Herniation
H. Caner A1
A5 From the Departments of Neurosurgery and Neurology, Baskent University, Faculty of, Medicine, Ankara, Turkey.
Abstract:
Objective: To report a case of disc herniation at T1-2. Clinical presentation: A 57-year-old man presented with hand weakness, Hornerís syndrome, and pain radiating along the medial aspect of one upper extremity. Magnetic resonance imaging demonstrated extruded T1-2 disc herniation with upward herniation of a sequestrated fragment. Intervention: An anterior approach was used to excise the disc, that was compressing the spinal cord and the T1 nerve root. All the patientís symptoms resolved completely, including Hornerís syndrome. Conclusion: Anterior discectomy may be the simplest and most effective method for disc excision and relief of spinal cord and T1 nerve root compression.

Also have a look at:
http://www.aan.com/familypractice/html/chp9.htm

Meds 2010: Cool Sites for MSK

Anatomy:

Get Body Smart:
http://www.getbodysmart.com/

LUMEN Master Muscle List:
http://www.meddean.luc.edu/lumen/MedEd/GrossAnatomy/dissector/mml/mmlalpha.htm

UAMS Anatomy Tables:
http://anatomy.uams.edu/anatomyhtml/medcharts.html

Radiology:

http://www.learningradiology.com/

Meds 2010

Anatomie du Bassin et Système reproductif féminin: Podcast

Le Podcast du cours «Anatomie du Bassin et Système reproductif féminin » a été mise à jour sur iAnatomie.com.


To see the Podcasts with Slides :

Go to http://www.ianatomie.com/
Click on " Podcast "
Scroll down to "Subscribe to this Podcast"
Click on "Subscribe with iTunes
iTunes will open and download the enhanced podcasts.
Click on the podcast you want to view.

Meds 2011

Le Système Lymphatique : Podcast

Le Podcast du cours «Le Système Lymphatique » a été mise à jour sur iAnatomie.com.

To see the Podcasts with Slides :

• Go to http://www.ianatomie.com/
• Click on " Podcast "
• Scroll down to "Subscribe to this Podcast"
• Click on "Subscribe with iTunes
• iTunes will open and download the enhanced podcasts.
• Click on the podcast you want to view.

Meds 2011

Aperçu de la structure des appareils digestif et urinaire: Podcast

Le Podcast du cours «Aperçu de la structure des appareils digestif et urinaire» a été mise à jour sur iAnatomie.com.

Meds 2011

Notions fondamentales sur le système nerveux: Podcast

Le Podcast du cours «Notions fondamentales sur le système nerveux» a été mise à jour sur iAnatomie.com.

Meds 2011

Principes de la Circulation: PowerPoints

Les PowerPoints du cours «Principes de la Circulation» a été mise à jour sur le Campus virtuel.

Meds 2011

Principes de la Circulation: Podcast

Le Podcast du cours «Principes de la Circulation» a été mise à jour sur iAnatomie.com.

NEW: GI Exam May 25th 2007

Anatomie du rein et de l'appareil urinaire: Podcast

Le Podcast du cours «Anatomie du rein et de l'appareil urinaire» a été mise à jour sur iAnatomie.com.

Injury to the Trochlear Nerve

From: Clinically Oriented Anatomy (5th Ed.) by Keith L. Moore, P.1137

UC Davis School of Medicine: Eye Simulator

Eye Simulator/Virtual Patient Simulator

RESP Lab. Exam (30%) : Friday Apr. 05, 2007

17 stations + 2 Rest, 3 min / Station

Pathology: 1-5
Histology: 6-7
Radiology: 8-11
Anatomy : 12-17

On the exam day: Please enter the Lab. from the P.B.L Side !

Paroi Thoracique, Médiastin et Diaphragme: Podcast

Le Podcast du cours «Paroi Thoracique, Médiastin et Diaphragme» a été mise à jour sur iAnatomie.com.

Anatomie de l'appareil respiratoire : Podcast
Le Podcast du cours «Anatomie de l'appareil respiratoire» a été mise à jour sur iAnatomie.com.

CV Lab. Exam

Heart Animation:

http://library.med.utah.edu/kw/pharm/hyper_heart1.html

The Anatomy Division is looking for two summer students for the following projects:

Summer 2007 Work Programs for Undergraduate Medical Students

• A Cadaveric Study of an anatomic variation of the brachial plexus inferior trunk-
• Development of iAnatomie Wiki Website

If interested please return the completed Student application form, B form, Offer of Soft Funded Scholarship form and your CV with a cover letter to Geraldine Gautier in the Research Office, Faculty of Medicine, Room 2033 by February 2, 2007.

For more information:
Summer 2007 Work Programs for Undergraduate Medical Students
Summer Work Program Instructions and Guideline Form

Dear Friends,

Drs Max Hincke & Ali Jalali will be shaving their heads during the “4th Annual Shave for a Cure” on January 19th, 2007.

This event will be held at the Ottawa 67s game at the Civic Center, game time 7:30pm. The event is organized by "SOS"- Smiling over Sickness, a committee formed by medical students at the University of Ottawa. Students, faculty, physicians will be collecting donations in return for shaving their heads during the intermissions of the hockey game!
All donations will be used to improve the quality of life for children with cancer and their families.

To make your donation for this noble cause:

In Person: **Deadline January 19, 2007 at 4:00pm**
Bring your Donations to the CMM secretariat (3207) or the Anatomy Division (2239).

Online:
Click on the link: http://www.canadahelps.org/CharityProfilePage.aspx?CharityID=s42713· Select: "Donate Now"·
Select "SOS-Shave for a Cure" from the drop down menu·
Enter donation amount and frequency·
In the message box indicate who you are making a donation for (to get shaved): Drs Max Hincke & Ali Jalali ·
Follow the rest of the directions, you may click on Continue in the right hand box and don’t need to sign in, complete the required fields, it is NOT necessary to get an account with Canada helps.

Buy Tickets: **Deadline January 12, 2007**
The tickets will cost $15 apiece with a portion of the proceeds going to the The Childhood Cancer Foundation Candlelighters Canada.
Contact: Ms. Sarah Lesperance, slesp009@uottawa.ca

Thank you very much for your support.

The Anatomy Division is looking for two summer students for the following projects:

Summer 2007 Work Programs for Undergraduate Medical Students

- A Cadaveric Study of an anatomic variation of the brachial plexus inferior trunk
- Development of iAnatomie Wiki Website

If interested please return the completed Student application form, B form, Offer of Soft Funded Scholarship form and your CV with a cover letter to Geraldine Gautier in the Research Office, Faculty of Medicine, Room 2033 by January 31, 2007.

For more information:
Summer 2007 Work Programs for Undergraduate Medical Students

Summer Work Program Instructions and Guideline Form