Ortho Oracle - orthopaedic operative atlas

Anterior Wall Fractures

– Discussion:     – anterior wall frx involve central portion of anterior column & involves iliopectineal line is involved;     – associated injury: anterior hip dislocation; – Technique of Fixation:     – anterior wall fractures are approached thru Ilioinguinal Approach w/ supine positioning;     – traction removes femoral head from the … Read more

Anterior Instability of the Shoulder

– Discussion:   – ON THE ARTICULATIONS. by Hippocrates. – pathoanatomy: – bankart lesion – hill sachs lesion – stabilizers of the shoulder: – dynamic / muscular stabilizers – static stabilizers – anteroinferior glenohumeral ligament – references: – Pathoanatomy of first-time, traumatic, anterior glenohumeral subluxation events. – mechanism of anterior dislocations: – combination of abduction, … Read more

Anterior Oblique Bundle of the MCL

– Discussion:      – strong and well-defined, arise from antero-inferior surface of medial epicondyle and inserts at the sublimis tubercle, adjacent to the joint              surface;      – primary constraint to valgus instability;             – in flexion, MCL provides 54% of valgus stability;             … Read more

Anterior Pelvic Frx: Anterior Plate Fixation Options

  – Two Hole Implants:     – two hole plate, usually a 4.5 mm, is fixed to the superior surface of the symphysis with two             6.5 mm cancellous screws immediately adjacent to the symphysis pubis;     – screws are inserted on the anterosuperior surface of the pubis on either side of the symphysis             … Read more

Anterior Pelvic Injuries: Open Surgical Approach w/ Plates

  – See: Anterior Plate Fixation Methods – Indications:     – open book pelvis injury w/ greater than a 2.5 cm pubic diastasis;     – note that fixation of pubic rami fractures can be much more complex than the fixation of a             simple diastasis;     – controversies:             – posterior injury and need for … Read more

ANTERIOR HEMIBLOCK

  – See: Rt and Lft BBB – S wave: II, III, aVF; – Loss of normal Qs: I, aVL, V6 – L.A.D. -Usually associatted with MI (upto 1/2 of Ant MI get Ant HemiB) -QRS slightly widened (0.1 to 0.12 sec) -Note: always rule out pre-existing sources of Left Axis Dev.: – Left Ventricular … Read more

Anterior Impingement Syndrome of the Ankle

    – Bony Impingement:     – pts who have persistent pain in anterior aspect of ankle & who have anterior tibiotalar spur evident on a lateral roentgenogram need additional diagnostic evaluation and management;     – extreme dorsiflexion required by the demiplie position in ballet can lead to impingement of anterior lip of … Read more

Anterior Infarct

– Dx of MI – ST depression of more than 2 mm in any of the inferior leads (II, III, or aVF) 5in pts w/ anterior infarction is assoc w/ hospital mortality of > 10% compared with < 10% in anterior infarctions w/o such marked inferior ST depression.