Data Trace Editor See: Surgical Approach Tension Band Theory Discussion transverse frx involving less than 50% of proximal sigmoid notch are suited to stable internal fixation by tension band; Weber modification provides improved frx rigidity; may also use T.B.W. along with a 6.5 mm cancellous screw, 7.0 mm screws, or 7.3 mm screw; surgical consent: patient should understand, … Read more
The Most Up-to-Date Book on ESWT A Accessory Bones of the Foot Accessory Navicular Achilles Tendinitis Akin Procedure Amputation of Foot and Ankle Anterior Impingement Snydrome of Ankle Arthrodesis of First MTP Joint Avulsion of Base of 5th Metatarsal B Bunionette C Calcaneus Calcaneal Apophysitis Calcaneovalgus Foot Cavovarus Foot Cheilectomy of First MTP Chevron Osteotomy … Read more
See: Total Hip Replacement Menu: revision arthroplasty menu Femoral Revision exposure of femur it is essential that prior to attempted femoral component removal, that there is a clear retrograde path for stem removal; this means that any trochanteric overhang is removed, either with a high speed bur or with an trochanteric osteotomy: some recommend routine … Read more
(See also: Total Hip Replacement Menu) Discussion evaluation of the painful THR indications for revision evaluation for loosening outcomes: references: Why revision total hip arthroplasty fails. Revision Hip Arthroplasty: Infection is the Most Common Cause of Failure Examination examination for loosening: previoius incisions; contracture of the flexors and adductors (adds to complexity of the case); … Read more
Discussion removal of broken femoral stems: removal of cementless stems: removal of cemented femoral stems: as noted by Peters, et al. (1997), at the time of acetabular component revision, evidence supports leaving a well fixed cemented component in place; in femoral components inserted w/ first generation cementing techniques, the rate of mechanical failure was 22% … Read more
Rule Out Infection » probably every revision joint procedure should have frozen sections sent prior to insertion of the components in order to determine whether acute inflammation is present (indicating infection); references: Failed total hip replacement: assessment by plain radiographs, arthrograms, and aspiration of the hip joint. The value of aspiration of the hip joint before … Read more
– TKR Menu: AP cutting guide – Determine Appropriate AP Component Size: – most instrument systems incorporate cutting block that is placed on end of femur & rotated to appropriate orientation; – prior to inserting the AP sizing guide, remove any prominent meniscal remnants so that the posterior “fins” of the … Read more
– See: – Joint Line Position – Patella Infera: – Discussion: – elevation of the joint line occurrs when only very small amount of tibial plateua surface is removed and “space” for the components created by removing portion of the distal … Read more
– Discussion: – see: – tibial component – extra-medullary cutting guide; – preparation for proximal tibial cut – posterior slope – this cut is made at right angles to anatomical axis … Read more
– Discussion: – femoral cutting guide is set for the appropriate right or left valgus angulation of +5 to 7 deg (in the tall thin patient try +5 deg, & in short obese patient try 7 or even +9 deg); – in lateral plane, this cut is perpendicular to anatomic axis … Read more