When an orthopedic surgeon orders an MRI, the assumption is that a radiologist will read it. What is rarely asked — and rarely specified in a teleradiology contract — is what kind of radiologist.
That distinction carries real clinical consequences, and the published literature is consistent on the point.
The Subspecialty Difference
Modern radiology encompasses more than a dozen recognized subspecialties. A fellowship-trained MSK radiologist has completed additional training beyond general radiology and reads musculoskeletal cases — joints, soft tissue, post-operative anatomy — every day, year after year. A general radiologist may read chest CTs, mammograms, abdominal studies, and MSK cases within the same shift.
Both are board-certified. Both are radiologists. The pattern recognition they bring to a complex MRI is not the same.
Published data on discrepancy rates between general and subspecialized radiologists show error rates ranging from 12.4% to 40%, compared to detected error rates of just 2.0% to 2.7% when review is performed within a subspecialty.[1] For MSK MRI specifically, one study found that 26.2% of cases had clinically important differences in interpretation when reviewed by a subspecialist after an initial general read.[2] For brain and spine MRI, discrepancy rates reach as high as 30%, with 12 to 13% classified as major[2] — meaning a missed tumor, an unrecognized stroke, or a mischaracterized lesion that altered the clinical picture.
These are not statistical abstractions. They are findings that change surgical plans, delay diagnoses, and expose practices to liability.
What General Radiologists Miss on MSK MRI
The errors that matter most in orthopedic imaging are rarely gross misses. They are the subtle findings that require concentrated, repeated exposure to a specific case mix to reliably detect.
A partial-thickness rotator cuff tear misclassified as tendinopathy. A ligament injury graded incorrectly, leading to conservative management of a case that warranted surgical intervention. A post-operative complication overlooked because the interpreting radiologist lacks familiarity with expected versus abnormal post-surgical anatomy. These findings do not disappear — they resurface downstream, often at greater cost to the patient and the practice.
In neuroradiology, the stakes are similarly high. A study examining 506 second opinions found a major discrepancy rate of 13% and a minor discrepancy rate of 21% between subspecialty neuroradiologists and general radiologists.[3] Early demyelinating disease, subtle nerve root compression, and incidental intracranial findings all require the kind of pattern recognition that comes from reading the same type of case, at volume, over years.
The Referring Physician Dimension
Orthopedic surgeons are discerning consumers of radiology reports. They know when a report gives them what they need for operative planning and when it does not. Vague descriptors, insufficient grading of pathology, and absent clinical correlation are noticed — and over time, they erode confidence.
When referring physicians lose confidence in report quality, they do not typically file a formal complaint. They redirect cases. The volume shift is quiet and gradual, and by the time it registers in the numbers, the relationship has already moved.
Report quality is not a soft metric. It is one of the most direct drivers of imaging center referral volume — and one of the most difficult to recover once it has been compromised.
The Practical Question
Most imaging centers do not know whether their teleradiology partner’s radiologists are fellowship-trained in the subspecialties represented in their case mix. The contract may specify board certification. It rarely specifies fellowship training, daily subspecialty volume, or case mix concentration.
Those are worth asking. A subspecialist who reads MSK MRI exclusively brings a depth of recognition that a generalist reading one MSK case between two chest CTs cannot replicate — regardless of credentials, experience, or intent.
The radiologist reading your MRI matters. The literature is clear on that point.
References
- Winters, M., et al. (2025, October 27). Actionable strategies to minimize diagnostic errors in radiology. PMC. Retrieved from https://pmc.ncbi.nlm.nih.gov/articles/PMC12592099/
- MDView. (2025, July 2). Why you need a second opinion on your MRI from a subspecialized, focused radiologist. Retrieved from https://www.mdview.com/blog/mdview-news-articles-1/why-you-need-a-second-opinion-on-your-mri-from-a-subspecialized-focused-radiologist-49
- Alpine Diagnostics. (2026, March 23). Radiology second opinion: Your essential 2026 guide to confident decisions. Retrieved from https://alpinediagnostics.ch/blog/what-is-radiology-second-opinion-guide/
