– See: – MP joint deformities – Distal Ulna Arthroplasty – Rheumatoid Hand – Anatomical Contributing Factors: (to ulnar drift) – normal mechanical advantage of the ulnar intrinsic muscles – asymmetry & ulnar slope of MC heads of index & middle fingers; – asymmetry of the collateral … Read more
– night stick fracture: mechanism: direct trauma w/ forearm used to block blow – stable frx: – diplaced < 50% = Stable; – periosteum & interosseous membrane are intact & act as restraint to rotation; – unstable fracture: … Read more
– See – Cubitbal Tunnel Syndrome – Differential Dx: Ulnar Nerve Dysfunction: – Martin Gruber Anastomosis – Ulnar Nerve Blocks: – Ulnar Nerve in Condylar Fractures: – Anatomy: – brachial plexus: – C8 and T1 nerve roots give rise to the medial cord which in turn, forms the ulnar nerve; – ulnar nerve passes distally, … Read more
– Discussion: – ulnar nerve blocks are used for frxs of little finger ray & in along w/ median and radial sensory blocks for ring finger ray fractures; – Anatomy: – ulnar nerve has two sensory branches that provide sensory innervation to ulnar side of the hand; – palmar … Read more
– Discussion: – see: elbow flexion contracture; – indicated for patients w/ loss of motion (out of functional range from 30 to 130 deg) due to anterior and posterior osteophytes; – PreOp Planning and Positioning: – patient is supine w/ bump placed under shoulder, and arm folded across chest; … Read more
div class=”mh-row clearfix”> h1>/h1> div class=”bodycopy”>hr size=”3″/> br/> a href=”/image4/ulna1.jpg”>img src=”/image4/ulna1a.jpg” alt=””/>/a> a href=”/image4/ulna2.jpg”>img src=”/image4/ulna2a.jpg” alt=””/>/a> a href=”/image4/ulna3.jpg”>img src=”/image4/ulna3a.jpg” alt=””/>/a>br/> br/> – See:br/> – a href=”/bones/radius-ulna/adult-both-bone-forearm-frx/”>Both Bone Forearm Fracture:/a> / a href=”/orthopaedics/ulnar-styloid-process-frx/”>Ulnar Styloid/a> Processbr/> br/> strong>- Anatomy:/strong>br/> – radius & ulna lie parallel to each other when forearm is supinated;br/> … Read more
– See: – Vascular Problems of the Wrist and Hand: – Ulnar Artery in Forearm: – about 1 inch below the antecubital fossa, brachial artery divides into radial & ulnar arteries, w/ latter being larger; – paired venae comitantes accompany both radial & ulnar arteries; … Read more
– Discussion: Tibial Plateau Frx Menu – bicondylar frx w/ distal oblique shaft frx; – these frx have bicondylar frx along w/ dissociation of diaphysis from metaphysis; – if the medial plateau fragment is intact, this frx can be treated with placement of a lateral plate and and Ex … Read more
– See: Multidirectional Instability: – Radiographic Subtypes: – Subcoracoid – most common type of anterior dislocation – head of humerus is displaced anteriorly w/ respect to glenoid, & is inferior to coracoid process; – greater tuberosity is fixed on anterior glenoid rim; – neck … Read more
– Discussion: – posterior cortex is disrupted w/ no cortical contact; – distal fragment is displaced posteriorly and proximally (by pull of triceps); – w/ medial displacement, the medial periosteal hinge is intact; – w/ lateral displacement, the lateral periosteal hinge is intact; – Physical Exam: … Read more