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11-22 mm  (distance between sun and closest orbit )

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The IM rod depth is set to 15 mm based on preop CT scan

The following are studies, thoughts and ideas. Nothing is validated or peer reviewed. A think tank for discussion and entertainment. Predicted dimensions or sizes or images and drawings are not intended to use or treat. ​

​Rp= a(1-e)
Ra= a(1+e)
e= 0.5
​e= c/a
Major humeral diameter = Ra/cos 45 
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Example:
Rp= 13
a= 26
Ra= 39
​Rp + Ra = 52
c^2 =  sqrt (26^2 -23^2)
c=13
Rp = 26-13 = 13
​Major humeral diameter = 52
Minor diameter = 45
eccentricity = 0.5

​ Major humeral head diameter is roughly 4 * Rp  ​​

JS Bin
Rp measurement Humeral head major diameter Standard Perform stem size
     
Observation: The morphology of the shoulder follows planetary elliptical paths and Keplers laws can roughly predict shoulder  joint dimensions and basic ellipses

Serving The Villages,  Clermont , Haines City and  Davenport 
Heart of Florida Adventhealth, Orlando Health Southlake 


Hours

M-F: 7am - 9pm

Telephone

352-243-6899

Email

focusorthopedics@hotmail.com
  • Home
  • dataset
  • Blog
  • Butlers
  • Rp measurement
  • humeral measurement
  • contact
  • Messieh Tuberosity
  • humeral cutting technique
  • diameter to stem size
  • reverse poly
  • ruleof3
  • trial
  • trail2
  • images
  • New Page
  • New Page1

About us

Dr. Michael Messieh is a specialized shoulder surgeon specializing in reverse shoulder replacement surgery. Our mission is to provide patients with the best possible care and support throughout the surgical process.

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Phone: 352-243-6899
Email: focusorthopedics@hotmail.com
Address: 771 CR 466 Lady Lake Florida Summit Medical Park

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