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Total Knee Tips & Pearls From Dr. Adam Rosen (A Virtual Total Knee Fellowship Podcast)
Dr. Adam Rosen is an orthopedic surgeon who specializes in total joint replacement. He created this podcast which is aimed at interns, residents, fellows, and general orthopedists who are looking to dive into the details of total knee replacements, hip replacement, and classic articles.
Be sure to check out my YouTube page: https://www.youtube.com/playlist?list=PL226EPMMG9vZmOiuDpmmh36nNzyPrYcRS
(Disclaimer: This is my opinion. Any information gathered is not medical education. Practitioners need to use their education and experience to determine how to treat their own patients.)
Total Knee Tips & Pearls From Dr. Adam Rosen (A Virtual Total Knee Fellowship Podcast)
Singh Index and Ward's Triangle
Changes in Trabecular Pattern of the Upper End of the Femur as an Index of Osteoporosis
Manmohan Singh et al
JBJS 1970
Grade 6 - All normal trabeculae are visible
Grade 5 - accentuation of the principal compressive and principal tensile trabeculae
- Ward's triangle looks empty
Grade 4 - tensile trabeculae are reduced
- Ward's triangle opens up laterally
- border line between osteoporotic and normal bone
Grade 3 - break in the continuity of the priciple tensile group
- definite osteoporosis
Grade 2 - principal compressive trabeculae are the only prominent trabeculae
Grade 1 - all trabeculae are reduced
The Normal Trabecular Pattern
1. Principal compressive group
2. Secondary compressive group
3. Greater trochanter group
4. Principal tensile group
5. Secondary tensile group
Wards Triangle (first described 1838)
An area in the neck between the principal compressive, secondary compressive and primary tensile group
