I would like to know the Dimensions of a TKR Implant with both the femoral and the tibial part. Also reference for creating a TKR Implant on either ProE or Solidworks or Catia?
Dear Shreyas,
It really depends on what implant you are interested in. Orthopaedic companies are usually quite secretive about their implant designs, so I don't think that you will find much out there.
You can try looking into the product brochure for some public information. Alternatively you can reverse engineer an implant: from a set of CT scans or x-rays, you can create a 3D CAD model of that implant and measure the dimensions you are looking for.
Finally, good old ruler and callipers can extract dimensions of implants if you can have access to any explants or demonstration samples. What exactly are you looking for?
This is not a case of one size fits all. The various components of implants (e.g. femoral, tibial) are made in a range of sizes so that the surgeon can select the ones which are the best match for the patient. Obviously, different models of implants are different in shape and dimensions too.
Different suppliers use different measurements to characterize their implants. Especially when you get into the more specialized implants (.e.g. modular implants).
The most basic characterization for the femoral part is probably AP width and ML width.
Tibial part is usually split into base plate and tibial component with both being characterized by ML width and (central) AP width (baseplate may contain an additional angle). If the baseplate is stemmed there is a stem length (and possibly diameter). Some suppliers provide stem extensions or modular stems.
Some suppliers use two AP width (one for the medial and one for the lateral part as these tow are seldom symmetrical) . The meniscal component is characterized by height ML width and (central) AP width (or, again possibly by two AP widths)
I suggest you go to the vendor websites and download their sales brochures which contain approximate(!) measurements Typical vendors: Zimmer, DePuy, Aesculap, Stryker, Smith& Nephew, Biomet, ...
Differs depending on manufacturer and component size.
Tables can often be found on manufacturers' website.
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