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Your high-performance tool for knee surgery


mediCAD® 3D Knee opens entirely new opportunities in anatomical assessment, planning and measurements of the knee, resulting in optimal, audit-compliant surgery preparation. A modern, intuitive user interface that takes you straight to your objective combined with the classic, convenient connection to an existing PAC system at your hospital are just two of the many features that make mediCAD® 3D Knee an indispensable tool for your day-to-day work.

The following are some of the upgraded features to look forward to:

- Patellofemoral measurements
- Deformity correction
- Corrective osteotomy
- Joint replacement
- Planning assistant Quick-TEP / Expert Mode Hybrid prosthetic planning (2D/3D)
- Revision planning
- Artifact reduction
- Transparent view and implant-bone contact visualization
- Automatic bone segmentation and landmark detection
- Stitching with individual sectional images
- Interactive help
- Planning Report



Planning assistant Quick-TEP / Expert Mode

3D-planning TEP (Expert)

Together with the Quick Mode and Expert Mode functions, the modular structure of mediCAD® 3D Knee provides you with customized assistance in planning functionality. Our Quick-TEP function speeds up planning with its integrated guide that takes you through each planning stage step by step.

Expert Tibia



Automatic bone segmentation and landmark detection

When you load CT data, mediCAD® 3D Knee performs automatic segmentation. This is an important building block in preoperative planning for knee replacement surgery. Segmentation can be used to freely display certain areas of the bone in a high-resolution, three-dimensional image.

The automatic femur, tibia and pelvis segmentation enables detection of relevant landmarks and automation of measurements, ensuring increased accuracy in planning. The user can adapt and optimize the landmarks at any time to achieve even greater accuracy. By setting an incision area, you can perform an osteotomy and move or rotate the resected areas as needed. All dimensions are adjusted automatically and thus reflect the new situation after the performed correction.


Deformity correction / Corrective osteotomy

mediCAD® 3D Knee allows you to plan corrections to the frontal alignment, tibia (HTO) and femur (DFO) as well as double-level corrections. You can also plan a torsion correction (including as a single cut) and combine it with a correction of the frontal alignment. You can see a preview of the resulting values for all osteotomies in order to plan the correction and postoperative outcome as effectively as possible in advance. Frontal axis corrections can be planned in both 2D and 3D.

Measurement and planning options:
• Measurement of the leg axes including femoral and tibial torsion
• Measurement of the posterior tibial slope
• Planning a HTO or a DFO
• Planning a double-level osteotomy
• Planning a Derotational osteotomy


Patellofemoral measurements

So that the knee joint can be examined fully, the patellofemoral measurements function focuses on treating the patellofemoral joint. All the relevant image data can be loaded at once and the necessary measurements can be taken quickly and easily to examine anterior knee pain and patellar instability. The function supports all imaging types used in daily practice, namely CT, MRI, CBCT and X-ray.

Patellofemoral measurements

The following measurements are available:
• Measurement of TT-PCL and TT-TG distance
• Measurement of the patella height index according to Insall-Salvati and Caton-Deschamps
• Patella angle
• Sulcus angle
• Trochlear depth
• Femoral torsion according to Waidelich and Schneider
• Tibial torsion according to Waidelich and Jend
• Trochlear classification according to Dejour
• Measurement of leg axis

Patellofemoral measurements Waidelich


Hybrid prosthetic planning

You can use the hybrid prosthetic planning function to dimension the leg axis in 2D by simply matching the landmarks of a 3D knee scan with the correspon-ding 2D full leg image (X-ray image).

The prosthesis sizes can still be planned on a 3D model afterwards. This allows you to combine the benefits of 3D planning with a standard full leg image. This is guaranteed to reduce exposure to radiation as you need only a partial 3D scan of the knee joint in order to determine the optimum prosthesis sizes.

The Slope Correction

An ACL rupture can increasingly be attributed to an increased slope of the tibial plateau. Especially for athletic people, the treatment of slope correction with an anterior closing osteotomy is an option.. This increasingly popular surgical procedure can relocate some of the stress on the ACL towards the PCL. With the aid of mediCAD, you can measure the current slope and plan the correction on a lateral x-ray by obtaining the calculating the desired slope including the required wedge height andangle. Finish your plan successfully with an appropriate osteosynthesis plate.


Directions to mediCAD

mediCAD Hectec GmbH
Opalstr. 54
D-84032 Altdorf/Landshut
Phone: +49 871 330203 0
Fax: +49 871 330 203 99
E-Mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
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Branch office Hamburg:
Schellerdamm 16
D-21079 Hamburg
Phone: +49 871 330203 0

Branch office Bad Homburg:
Werner-Reimers-Straße 2-4
D-61352 Bad Homburg
Phone: +49 871 330203 0

Subsidiary USA:
mediCAD US, Inc.
191 Peachtree St. NE,
Suite 3720 Atlanta,
GA 30303, USA
Phone: +1 470 3441215
Mobile: +1 404 5482012


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