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Updated: Apr 9, 2026

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Author Spotlight: Exploring the Complexities of Achilles Tendon Injuries — Research and Future Directions
Published on: October 27, 2023
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MRI-Based Classification of Achilles Tendon Ruptures: Reliability and Predictors of Tear Location
Maximilian M Mueller1,2, Andrea Estfeller1,3, Christopher C Cychosz4
1Department of Orthopedic Surgery, Hospital for Special Surgery, NewYork-Presbyterian, Weill Medical College of Cornell University, New York, New York, USA.
Orthopaedic Journal of Sports Medicine
|April 8, 2026
Summary
A new classification system for Achilles tendon (AT) ruptures was developed, showing high reliability. Most ruptures occurred at the musculotendinous junction (MTJ), with specific factors predicting tear location.
Area of Science:
- Orthopedics
- Sports Medicine
- Radiology
Background:
- Lack of a standardized Achilles tendon (AT) injury classification system hinders treatment consensus.
- Accurate differentiation of AT injury types is crucial for effective management.
Purpose of the Study:
- To establish an MRI-based classification system for Achilles tendon (AT) rupture location.
- To evaluate the epidemiology of AT ruptures.
Main Methods:
- A retrospective search identified 428 patients with acute AT injuries (2016-2023).
- Tear locations were classified using an MRI-based system (types 1-3B).
- Clinicodemographic data and imaging parameters were analyzed.
Main Results:
- Achilles tendon (AT) ruptures were most common at the musculotendinous junction (MTJ; 62.7%).
- Tendinopathy, age, gap size, and tendon thickness predicted AT tear type.
- Female patients had lower tendon thickness and higher prevalence of distal tears.
Conclusions:
- A novel, reliable MRI-based classification system for AT ruptures was introduced.
- The MTJ is the most frequent site of AT rupture.
- Further research with larger cohorts is recommended to validate findings.

