Abstract
We commend the authors for their insightful work on the diagnostic role of magnetic resonance neurography (MRN) in posterior interosseous nerve (PIN) neuropathy. 1 This study highlights key imaging features that could significantly enhance early diagnosis and facilitate targeted intervention, especially in athletes and active individuals—a population frequently affected by peripheral nerve injuries. The clinical relevance of this work is undeniable, as it directly aligns with the needs of both orthopaedic surgeons and sports medicine specialists.
While the study identifies interosseous nerve enlargement and T2 hyperintensity as potential markers, the lack of standardized imaging thresholds remains a critical limitation. Without universally accepted criteria, the diagnostic utility of MRN is compromised, as interpretation can vary between clinicians. Establishing clear, reproducible thresholds through multicenter collaboration would enhance consistency in diagnosis, making MRN a more reliable tool for orthopaedic surgeons when planning surgeries and for rehabilitation specialists guiding recovery. Standardization would also facilitate broader adoption of MRN as part of a routine clinical evaluation protocol for peripheral nerve injuries.
In addition, the study would benefit from incorporating clinical stratification factors, such as age, sex, and activity level. These variables play a significant role in the presentation and progression of peripheral neuropathies. By analyzing how these factors intersect with MRN findings, the authors could provide a more nuanced understanding of how different patient subgroups respond to nerve injury and how MRN can be leveraged in sports injury screening and return-to-play decisions. This would further highlight MRN's potential in enhancing individualized care.
Furthermore, the study's focus on MRN without examining the relative contributions of various magnetic resonance imaging (MRI) sequences (T1, T2, fat suppression) limits its scope. Each sequence provides distinct perspectives on nerve pathologies, revealing facets of the disease that may be missed by a single modality. The value of imaging lies in its multifaceted approach, and examining how these sequences complement each other would optimize both sensitivity and specificity in diagnosing PIN neuropathy. We recommend that future studies explore this interaction, for example, using GPT to assist in hierarchical selection, 2 which could significantly enhance diagnostic accuracy.
Moreover, the impact of MRN on patient outcomes hinges on effective interdisciplinary collaboration between radiologists, orthopaedic surgeons, and rehabilitation teams. It is essential that all health care providers involved in the diagnosis and management of PIN neuropathy have a shared understanding of how to interpret MRN results and integrate them into treatment plans. Interdisciplinary training programs that promote collaboration between these specialties could streamline the diagnostic process, reduce delays in care, and ultimately improve patient outcomes.
In conclusion, while the authors’ study lays a strong foundation, incorporating standardized diagnostic thresholds, clinical stratification, and interdisciplinary collaboration would maximize the clinical utility of MRN in the diagnosis and management of PIN neuropathy. Additionally, exploring the role of multiple MRI sequences would further enhance diagnostic precision. Such advancements would ensure that MRN becomes an indispensable tool in orthopaedic and sports medicine practice, ultimately improving both diagnostic accuracy and patient care.
Footnotes
Final revision submitted August 11, 2025; accepted August 13, 2025.
The author declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article. AOSSM checks author disclosures against the Open Payments Database (OPD). AOSSM has not conducted an independent investigation on the OPD and disclaims any liability or responsibility relating thereto.
