anatomy

Anatomy

Posterolateral & Posteromedial tubercles

- separated by sulcus for FHL

- lateral larger than medial 

PL tubercle

- size variable

Eponymous name

Snowboarder's fracture

Epidemiology

10% talus fractures

Second to talar neck fractures

Etiology

Ankle sprain

- eversion / external rotation

Ankle fractures

 Anatomy

Dorsal Columns 

- light touch, vibration & proprioception

- CTLS (cervical fibres central, sacral fibres lateral)

Lateral Corticospinal Tract

- motor tract

Definition

Acute dislocation of the atlanto-axial facet joint

Present with acute torticollis

Etiology

Children

Definition

Injury to ulnar collateral ligament of thumb MCPJ

Interferes with pinch grip and grasp and thumb is ineffective as a post

Epidemiology

Middle age men

Steroids / Growth Hormone

Aetiology

Usually occurs in gym

Bench Press

Clinical

Significant bruising in the acute phase

In chronic setting, ask patient to adduct against hip / resistance

Subclavian Artery

Origin

- on right arises from brachiocephalic trunk behind right sternoclavicular joint

- on left arises from the arch of the aorta

Ends

- outer border first rib as axillary artery

First part

- origin of artery to medial aspect scalenus anterior

- on right arches above the clavicle / lies on the pleura / RLN wraps about it

Femoral Artery

Enters thigh

- midway between ASIS and pubic symphysis

- in femoral triangle

- NAVY (nerve / artery / vein / Y fronts)

- in femoral sheath with femoral vein (transversalis fascia and psoas fascia)

- femoral nerve outside sheath / under the iliac fascia / lateral

Femoral triangle

Anatomy

- inguinal ligament superiorly

- medial border sartorius laterally

Definition

Benign enlargement of the common digital branch

- usually 3rd webspace

Anatomy

Found at level of or just distal to MT heads

- deep to the deep transverse MT ligament

Epidemiology

Classically women between 40 and 60