You’re welcome . D1-3 allow you to reproduce your exact blade position in theatre . This ensures your centre of rotation is where you planned . In this way you can avoid or accommodate the implications of any tibial long axis shift , that your tibial crest thickness and shape is as you planned to minimise the risk of fracture and 3) predict / avoid any potential challenges of an ‘ uphill cut ‘ at the caudal cortex
hi dear, can i ask a question Why did you calibrate the X-ray to 2.5cm? And are there fixed tables for bone angles or do we diagnose each patient individually?
Good day, the calibration is set to the known diameter or length of your radio- opaque calibration marker. Your marker is placed level with and adjacent to your area of anatomical interest. The bigger the marker is relative to the anatomy of interest, the less significant any proportionate error in measuring it becomes. Every patient has a unique tibial plateau angle (mCaPTA )and they may vary between each knee. You can either measure it manually in VPOP and rotate by the number of degrees required, or use a rotation chart, or to be most efficient- simply set your target mCaPTA / Tibial Plateau angle and rotate your plateau to this target tangent and track any tibial long axis shift ( see how to plan a CCWO in VPOP video) if your chosen rotation centre moves your proximal landmark for the tibial mechanical axis during the rotation.
@@vpop-pro I don't know much about this software. I'm just wondering where to understand x-ray correction. I want to buy it to support veterinarians in Vietnam to easily access new techniques
Good Day Dr David, the choice of Crescentic blade size is usually determined as a proportion of the patient’s proximal tibial morphology rather than by patient body weight or from an absolute minimal crest width. Kindest regards.
Hi Samir. A Patient's TPA is the angle between the Tibial Plateau and the perpendicular to the Tibial Long Axis. ie 90- 61= 29' . The desired post operative TPA is 5', ie the angle between the postoperative Tibial Plateau and the Tibial Long Axis is 85' = 90-5' .
Hi,
thanks for the great video.
Looks like a very powerful tool !
Can you tell me what D1, D2 and D3 are measured for ?
Thanks a lot !
You’re welcome . D1-3 allow you to reproduce your exact blade position in theatre . This ensures your centre of rotation is where you planned . In this way you can avoid or accommodate the implications of any tibial long axis shift , that your tibial crest thickness and shape is as you planned to minimise the risk of fracture and 3) predict / avoid any potential challenges of an ‘ uphill cut ‘ at the caudal cortex
hi dear, can i ask a question
Why did you calibrate the X-ray to 2.5cm? And are there fixed tables for bone angles or do we diagnose each patient individually?
Good day, the calibration is set to the known diameter or length of your radio- opaque calibration marker. Your marker is placed level with and adjacent to your area of anatomical interest. The bigger the marker is relative to the anatomy of interest, the less significant any proportionate error in measuring it becomes. Every patient has a unique tibial plateau angle (mCaPTA )and they may vary between each knee. You can either measure it manually in VPOP and rotate by the number of degrees required, or use a rotation chart, or to be most efficient- simply set your target mCaPTA / Tibial Plateau angle and rotate your plateau to this target tangent and track any tibial long axis shift ( see how to plan a CCWO in VPOP video) if your chosen rotation centre moves your proximal landmark for the tibial mechanical axis during the rotation.
@@vpop-pro I don't know much about this software. I'm just wondering where to understand x-ray correction. I want to buy it to support veterinarians in Vietnam to easily access new techniques
I'm confuse you saifd you need to ahve at least 10 mm/ 1cm from tibial crest, and you measure 7.8mm? shouldn't you change your cut or saw size?
Good Day Dr David, the choice of Crescentic blade size is usually determined as a proportion of the patient’s proximal tibial morphology rather than by patient body weight or from an absolute minimal crest width. Kindest regards.
@@vpop-pro thank you very much for the precision.
The best!
Amazing
'29 deegres' but in measurements is 61"????
Hi Samir. A Patient's TPA is the angle between the Tibial Plateau and the perpendicular to the Tibial Long Axis. ie 90- 61= 29' . The desired post operative TPA is 5', ie the angle between the postoperative Tibial Plateau and the Tibial Long Axis is 85' = 90-5' .
thank you @@vpop-pro
Cool👍