The Knee: Reconstruction, Replacement  and Revision Tracking Pixel
Duke Orthopaedics
presents
Wheeless' Textbook of Orthopaedics

Singh Index for Osteoporosis


- See: Osteoporosis and Hip Fractures

- Bony Trabeculae of the Proximal Femur:
     - Ward's Triangle
     - Greater Trochanteric Group
     - Secondary Compressive Group
     - Secondary Tensile Group
     - Principal Tensile Group
     - Principal Compressive Group  
           Changes in trabecular pattern of the upper end of the femur as an index of osteoporosis.

 - Grade VI:
        - all normal trabecular groups are visible
        - upper end of femur seems to be completely occupied by cancellous bone;
 - Grade V:
        - principal tensile & principal compressive trabeculae is accentuated;
        - Ward's triangle appears prominent;
 - Grade IV:
        - principal tensile trabeculae are markedly reduced but can still be traced from lateral cortex to upper part of the femoral neck;
        - ref: The influence of osteoporosis in femoral fracture healing time

 - Grade III:
        - there is a break in the continuity of the principal tensile trabeculae opposite the greater trochanter;
        - this grade indicates definite osteoporosis;
 - Grade II:
        - only principal compressive trabeculae stand out prominently;
        - remaining trabeculae have been essentially absorbed;
 - Grade I:
        - principal compressive trabeculae are markedly reduced in number and are no longer prominent




[Determination of strength of femoral neck in patients with hip fracture]

Evaluation of Singh index for assessment of osteoporosis using digital radiography

Fractures of the proximal femur: correlates of radiological evidence of osteoporosis

Evaluation of the Singh index for measuring osteoporosis

Evaluation of the Singh index and femoral calcar width as epidemiological methods for measuring bone mass in the femoral neck



Original Text by Clifford R. Wheeless, III, MD.

Last updated by Data Trace Staff on Tuesday, September 18, 2012 3:09 pm