– 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
– See: Femoral Component – Resection of the Distal Femur: – cushing rongeur is used to remove osteophytes in medial & lateral aspects of the femoral condyles as well as the intercondylar space; – this avoids, possible mis-sizing of the femoral component; – femoral IM alignment rod: (discussion) … Read more
What Should You Know Before Your Surgery? How We Protect You From Infection How We Protect You From Blood Clots: Your laboratory results – your hematocrit should be between 30 and 45% – if your hematocrit drops below 25-26% during your surgery, we may recommend a blood transfusion. – nasal swab: Your nasal swab should be … Read more
– Component Insertion: – tibial insertion: – cement is applied to the proximal tibial surface, and the surgeon uses gloved fingers to manually press cement into proximal tibial surface; – subsequently additional cement is applied to the proximal tibial surface; … Read more
– Discussion: – flex the knee to 90 deg and release the anterior attachment of medial joint capsule from the tibia; – this should provide wide exposure of the interior of the knee; – at this point it should be possible to sublux tibia forward for complete visualization of the plateau surfaces; – trim osteophytes … Read more
– See: – Total Knee Replacement Menu – Axial Alignment – Kinematics of the Knee Joint – Metallurgy: TKR – Rotation of TKR – Unconstrained Prosthesis – Discussion: – inability to achieve precise alignment will ultimately lead to component loosening, the leading cause of TKA failure; – designs with greater conformity between the femoral … Read more
– Discussion: – defects are peripheral or central – peripheral defects offer no peripheral support for tibial component; – central defects with a cortical rim that does not support the tibial componennt act like a peripheral defect; – in OA varus knees defect is peripheral and posteromedial; … Read more
– Discussion: – see: Stress Frx Menu – proximal 1/3 of tibia is most common site for tibial stress frxs in adolescents, but in runners tibial stress frx occur near junction of middle and distal thirds; – tibia is the most frequent stress fracture location in most series in both athletes and … Read more
– Discussion: – considerations for graft placement – optimal graft angle – land marks for graft entry point – determination of graft length – retention of remnant ligament: – ref: Anterior cruciate ligament reconstruction with remnant preservation: a prospective, randomized controlled study. – Transtibial Technique: – tibial tunnel guide is … Read more