Slim
new member
wanttoride,I hope your knee gets better soon,prayers sent for your healing.
Purely tension in the ligaments. You can't relax the natural tension - it's like rubber bands but it also showed that there is a little extra tension or stiffness than is wanted. Usually it should 'bounce back' to 0 or +5.What would have caused it to bounce back to the 10 degrees if everything was relaxed?
I'm confused by this because he did do a patellofemoral arthroplasty - otherwise known as a patellar button! I'll be interested to know what he meant by this.inspection of the knee revealed marked degenerative changes of the patellofemoral articulation with complete loss of the articular cartilage. There were also several small areas of chondromalacia in the mid weight bearing portion of the medial femoral condyle, also somewhat posteriorly and a slightly smaller area of the lateral femoral condyle. Because of those areas, I did not feel she would be a good candidate for patellofemoral arthroplasty.
That in blue is just the name of the implant. Bit of a mouthful but we generally just refer to it as the Zimmer Gender! Size 1 is the smallest as is the size 0 patella button whilst a 9mm insert is about average. Yes I am familiar with it, and as I have said many times before, all prostheses are pretty much of a muchness. So far as the patient is concerned it really doesn't matter too much which one they get, they wouldn't know the difference in the end anyway. The difference is principally for the surgeon as each one has slightly different tools and thus it comes down to which the surgeon feels comfortable using.2. Procedure: Left total knee arthroplasty utilizing Zimmer gender solutions Natural Knee flex system with a size 1 femoral and tibial components and a size 0 patella and a 9mm prolong polyethylene congruent inset.
When we do a TKR, after preparing the bone, we use trial implants (i.e. not the real things) to test which sizes are most suitable. As a passing matter of interest, I could always tell which it was going to be just by eyeballing it so I'm sure surgeons can too! Anyway, the insert trials are all colour-coded according to size so we make sure we get the correct ones, meaning small, medium or large. Then we select first the size for the femur and that dictates which range of trials we use. Generally a medium femur also takes a medium tibial tray which are applied to the bone. Then the insert is trialled starting with something moderate like a 9mm. The whole, including a button if being used, is assembled in the joint and the leg put through a range of movement to make sure it is properly tensioned. If it seems tight, a smaller insert is tried, if loose, a larger one, until the function of the joint is deemed to be satisfactory.satisfied with the component sizing, stability and soft tissue balancing, the trial components were all removed and preparation was made for placement of the final implants. Bone paste was prepared from aspirate and reamings and applied to the cancellous surfaces. Tibial base plate was impacted and appropriate length 6.5 cancellous screws inserted with good purchase. The 9mm Durasul polyethylene congruent insert was then positioned, impacted and checked to insure it was fully seated and secure. Femoral component was impacted. A good press-fit was obtained. Patella was seated with the patellar clamp. With all components in place, the knee was reduced. Range of motion and stability were checked again and found to be excellent as they had been with the trial components.

