Changes in Muscle Volume Asymmetries Among Lower Extremity Muscles From Baseline Through 12 Months After Anterior Cruciate Ligament Reconstruction With Quadriceps Tendon Autograft
Keith A. Knurr, Mikalyn T. DeFoor, Matthew Blomquist, Joshua Shaw, Marc Blaylock, Daniel J. Cognetti, Andrew J. Sheean · 2026
Read Changes in Muscle Volume Asymmetries Among Lower Extremity Muscles From Baseline Through 12 Months After Anterior Cruciate Ligament Reconstruction With Quadriceps Tendon Autograft by Keith A. Knurr, Mikalyn T. DeFoor, Matthew Blomquist, Joshua Shaw, Marc Blaylock, Daniel J. Cognetti, Andrew J. Sheean (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-13241675.txt.
Description
Knurr and colleagues at Wisconsin charted how thirty-four leg muscles change around ACL reconstruction with quadriceps grafts. Twenty-five patients underwent MRI before surgery and at three and twelve months after. Automated segmentation measured every muscle in both legs. The quadriceps was expected to suffer most.
Deficits peaked at three months, when nearly half the muscles lagged on the operated side. A year out, ten muscles still trailed, the vasti worst of all. Calf muscles also stayed shrunken, while the operated side's gluteus maximus grew larger. Knurr argues rehabilitation must look beyond the quadriceps.
Catalog record
| CREATOR | Keith A. Knurr, Mikalyn T. DeFoor, Matthew Blomquist, Joshua Shaw, Marc Blaylock, Daniel J. Cognetti, Andrew J. Sheean |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 21 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |