(see also: juvenile RA menu) Discussion definition: > 5 involved joints; large and small joint may be affected; accounts for about 50% of patients w/ JRA; may occur at 1-3 yrs or during early adolescence (after age 10); children w/ seronegative arthritis usually present before age 5 years and have iridocyclitis if fewer than five … Read more
– Surgical Considerations: – preoperative anticoagulants: – consider use of cell saver; – if patients have a medical condition that requires preoperative anticoagulants, then consider using press fit femoral and acetabular components; – a prerequisite for cementing femoral stems, is the ability to … Read more
– Discussion: – one of several causes of heel pain; – the pain is located somewhat more distally than in other causes of heel pain syndrome – symptoms include gradual onset of pain at the origin of the plantar aponeurosis and 1 cm distal to this area … Read more
– Discussion: – by definition, is a decrease of more than 2-5 mm in the verticle distance of the femoral stem; – minor subsidence is to be expected in the first year or two following surgery; – more than 5 mm of subsidence … Read more
– See: – Anterior Cruciate Ligament – Anterolateral Rotatory Instability – Clunk Test – Lachman – Losee Test – Reverse Pivot Shift Test – Discussion: – pivot shift assesses degree of incapacitating dysfunction in knee … Read more
– See: – Acetabular Fractures: – Total Hip Arthroplasty: – Discussion: – in the report by Bellabarba C, et al, the authors compared the results of arthroplasty in patients who had had prior operative treatment of their acetabular fracture with those in patients who had had … Read more
– Anatomy: – origin: anterior surface of sacrum between and lateral to anterior sacral foramen, capsule of sacroiliac articulation, margin of the greater sciatic foramen, and sacrotuberous ligament; – insertion: superior border of greater trochanter of femur; – action: external rotation of hip & … Read more
– Discussion: (see pilon frx discussion) – fibula is usually fractured above the joint line; – some authors will avoid ORIF of the fibula in these injuries if there is excessive fibular comminution (ie poor chance of good fixation) and if there is excessive varus of the articular surface (ORIF would accentuate the varus); … Read more
– Discussion: – incorrect placement of pins is a common error; – superior quadrant of femoral head should be avoided: – this is where retinacular vessels enter, and pin penetration into this area may cause AVN; – pins should not be placed superiorly … Read more
Discussion pigmented villonodular synovitis is a slow growing, benign, and locally invasive tumor of the synovium; location: most often involves the knee (also in hip, ankle, elbow, etc.); always consider PVNS in a younger patient with unexplained hip pain; acute episodic attacks of pain and swelling may occur; patients may have mechanical symptoms (locking and … Read more