Mulder's sign

Mulder's Sign is a clinical test often used in the diagnosis of Morton's neuroma, a common foot condition. The test is named after Dr. Dirk Mulder, who first described it in 1951.

Procedure

The Mulder's Sign test is performed by squeezing the patient's foot from the sides while simultaneously pressing on the area of concern with the other hand. If a click is felt and the patient experiences a sudden sharp pain, the test is considered positive for Morton's neuroma.

Clinical Significance

A positive Mulder's Sign is highly suggestive of Morton's neuroma, but it is not definitive. Other tests, such as ultrasound or MRI, may be needed to confirm the diagnosis. However, Mulder's Sign is a simple and quick test that can be performed in any clinical setting, making it a valuable tool in the initial assessment of foot pain.

Limitations

While Mulder's Sign is a useful test, it is not without limitations. It may produce false positives in patients with other foot conditions, such as bursitis or metatarsalgia. Furthermore, a negative Mulder's Sign does not rule out Morton's neuroma, as the test has a sensitivity of only about 50%.

See Also

• Morton's neuroma
• Foot pain
• Clinical examination

References

• Mulder, D. (1951). The Causative Mechanism in Morton's Metatarsalgia. The Journal of Bone and Joint Surgery, 33(1), 94-95.

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