Femoral neck anteversion- what’s normal in Indians: a morphological study of 742 hips using CT-based MAKO robotic evaluation
Adarsh Annapareddy, Tarun Jayakumar, Sneh Shah, Mahesh Madhukar Kulkarni, Arun Kannan, Ravikumar Mukartihal, Sharan S Patil, Rohit Rakesh Luthra, Ashish Singh, Vemaganti Badri Narayana Prasad, Mujtaba Ansari, A V Gurava Reddy · 2026
Read Femoral neck anteversion- what’s normal in Indians: a morphological study of 742 hips using CT-based MAKO robotic evaluation by Adarsh Annapareddy, Tarun Jayakumar, Sneh Shah, Mahesh Madhukar Kulkarni, Arun Kannan, Ravikumar Mukartihal, Sharan S Patil, Rohit Rakesh Luthra, Ashish Singh, Vemaganti Badri Narayana Prasad, Mujtaba Ansari, A V Gurava Reddy (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-13474972.txt.
Description
Annapareddy and co-authors measured the natural twist of the thigh bone in Indian patients in 2026, since hip replacement planning still leans on Western reference values. The twist, femoral neck anteversion, is the angle between the neck of the thigh bone and a line through the knee. Using robotic surgery planning scans, the team measured 742 hips from patients scheduled for primary hip replacement across several centers.
The average twist was minus 2.6 degrees, meaning a slight backward twist, with values spanning minus 42 to plus 41 degrees across the hips. More than half, 53.2 percent of hips, twisted backward, a pattern called retroversion, while 43.1 percent twisted forward and the rest sat neutral. Men leaned toward backward twist and women toward forward twist, and 94.7 percent of hips fell below the 15-degree figure often quoted as normal in Western texts.
Catalog record
| CREATOR | Adarsh Annapareddy, Tarun Jayakumar, Sneh Shah, Mahesh Madhukar Kulkarni, Arun Kannan, Ravikumar Mukartihal, Sharan S Patil, Rohit Rakesh Luthra, Ashish Singh, Vemaganti Badri Narayana Prasad, Mujtaba Ansari, A V Gurava Reddy |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 28 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |