Data Trace Editor – See: Forearm Extensors : – Anatomy: – origin: 2 heads from lateral epicondyle & middle 1/3 of posterior ulna; – insertion: – posterior surface of base of 5th metacarpal; – ECU is the only wrist extensor that lies in its own fibro-osseus tunnel; – action: extends and adducts the hand at the wrist; – … Read more
– See: Forearm Extensors: – Anatomy: – origin: lower 1/3 of lateral epicondyle & supracondylar ridge; – insertion: posterior surface of base of second metacarpal; – action: extends and abducts the hand at the wrist; – synergists: ECRB, ECU; – nerve supply: radial, … Read more
– See: Forearm Extensors : – Anatomy: – origin: lateral condyle of humerus; – insertion: – this tendon inserts into the base of 3rd metacarpal and is in direct relationship with the ECRL, which inserts into the base of the 3rd metacarpal; … Read more
– Discussion: – extension type accounts for 95% of cases, & is caused by a fall on outstretched hand with hyperextension of the elbow; – anterior periosteum is torn; – there may be a significant amount of local bleeding and swelling; – nerves & blood vessels are contused, compressed, … Read more
– Discussion: – anterior longitudinal ligament inserts on anteroinferior portion of the C2 body; – w/ extreme hyperextension, ligament may remain intact but may avulse from its insertion, pulling a corner of C2 body with it; – vertical ht of the fracture fragment is > than its horizontal width; – hyperextension … Read more
– Discussion: – see flexion gap – is space between transverse cut on distal femur & transverse proximal tibial cut while the knee is in complete extension; – while minor loss of knee flexion or mild instability in flexion can be tolerated, priority is always be given to extension gap adjustments; … Read more
– See: Phalangeal Injury – Discussion: – takes advantage of stabilizing forces of flexor & intrinsic on phalanges with the MP joint held in 90 deg flexion; – intact dorsal extensor mechanism functions as “tension band” to palmar cortex, and helps maintain the reduction; – digital rotation … Read more
– Discussion: – indications: – well fixed femoral components (fully coated press fit stems; – for revision of femoral stems placed in significant varus; – expose the lateral femur by diving the insertion of the lateralis off the vastus tubercle and then elevating the vastus lateralis off the linea aspera; – … Read more
(See also: Plafond Menu) Timing of Open Reduction in some cases, the fibula can be anatomically reduced along with application of external fixator which allows the fracture to be brought out to length and which allows the talus to be centered under the tibia; then 7-21 days later, medial column and articular surface can be restored … Read more
– See: – Anterior Approach to Radial Shaft: – @<c:ovvuimgp -s c:osdiagfor.1[Diagram – Plating Techniques: – Discussion: – incision begins distal to flexor crease of elbow & extends distally for approx 15 cm along the anterior border of brachioradialis; … Read more