Ortho Oracle - orthopaedic operative atlas

INSULIN (SQ only) Onset(hr) Peak Duration(hr)

– See: IV insulin infusion: __________________________________________ Rediscovering the First Miracle Drug     Regular      .25-1       2-6     4-12     Semilente    .50-1       3-10    8-18     NPH          1.5-4       6-16    14-28     PZI         … Read more

Intercondylar fractures

– Discussion:     – condyles will frx apart w/ variable amount of displacement, & comminution; – Approach:     – use posterior approach w/ olecranon osteotomy;     – articular surface is restored using interfragmentary lag screw fixation;     – coronoid and olecranon fossa must not be violated with fixation, nor should width … Read more

Intercranial-Pressure Monitoring

– Discussion:     – consistent relationship between cerebral blood flow and intracranial pressure is difficult to demonstrate until levels of 40-50 mm Hg are           reached;     – well-engineered intracranial-pressure transducers can easily be inserted by the neurosurgeon in the emergency room;     – use subdural rather than an intraventricular placement (which could reduce intracranial pressure … Read more

Intermittent Manditory Ventilation

– Discussion:  – Delivers a preset tidal volume at preset rate  – Remainder of patient’s minute ventilation is self generated and is independent of the ventilator; – IMV rate is initally set at the same respiratory rate as the assist control mode and is slowly reduced if the arterial blood gas levels (particularly the PaCO2 … Read more

Internal Rotation

– See:   – Anteromedial Instability   – Anterolateral Instability   – external rotation – Discussion: – internal-rotation laxity increases w/ knee flexion, w/ largest amount (25 degrees) seen in the 20 to 40-degree range of knee flexion; – of all of structures around the knee, only MCL and ACL play an important role in the … Read more

Insertion of Cementless Femoral Stem

– Technique Considerations:     – entry into the medullary canal:     – femoral reaming:     – broaching for press fit stems:            – the last broach in inserted carefully and should advance with each blow of the mallet;            – as the broach is … Read more

Insertional Activity

– Discussion:     – when needle is inserted into muscle or moved w/in muscle, there is a single burst of activity that usually lasts 300 to 500 ms;     – activity is related to movement of electrode and is thought to result from mechanical stimulation or injury of the muscle fibers; – Increased Insertional Activity: … Read more

Insidious Onset of Joint Disorders in the Child

     – Synovial F. Exam:      – Pauciarticular JRA      – Polyarticular JRA      – seronegative Arthritides      – Osteochondroses (LCP, Osgood-Schlatter dz)      – Slipped Capital Femoral Epiphysis      – Lyme Disease      – Oseoid Osteoma      – Foreign body synovitis