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Sonographic evaluation of interdigital neuromas
G A Sobiesk1, S J Wertheimer, R Schulz
1St. John Hospital-Macomb Center, Harrison Township, MI 48045-2458, USA.
Summary
Sonography accurately identifies interdigital neuromas, commonly known as Morton's neuromas. This ultrasound technique shows high sensitivity and specificity, correlating well with surgical findings for diagnosing these foot conditions.
Area of Science:
- Podiatric Medicine
- Diagnostic Imaging
- Musculoskeletal Ultrasound
Background:
- Interdigital neuromas, particularly Morton's neuroma, cause significant pain and disability.
- Accurate diagnosis is crucial for effective treatment planning.
- Non-invasive imaging modalities are sought to improve diagnostic accuracy.
Purpose of the Study:
- To assess the diagnostic efficacy of sonography in identifying interdigital neuromas.
- To compare sonographic findings with surgical outcomes.
- To evaluate the correlation between ultrasound measurements and surgical measurements of neuromas.
Main Methods:
- Twenty patients with suspected interdigital neuromas underwent sonographic evaluation.
- Symptomatic and adjacent intermetatarsal spaces were examined using ultrasound.
- Surgical exploration was performed to confirm sonographic findings.
Main Results:
- Sonography correctly identified neuromas in 14 of 15 surgically confirmed cases (93.3% concordance).
- Ultrasound demonstrated 100% sensitivity and 83.3% specificity for detecting neuromas.
- Ultrasound measurements of neuroma size strongly correlated with surgical findings (r = 0.804, p < 0.001).
Conclusions:
- Sonography is a highly effective tool for diagnosing interdigital neuromas.
- Ultrasound accurately predicts the presence, size, and location of Morton's neuromas.
- This imaging modality aids in surgical planning and improves diagnostic confidence.