Physical Medicine and Rehabilitation for Epicondylitis Workup
- Author: Sharon J Gibbs, MD; Chief Editor: Rene Cailliet, MD more...
Laboratory Studies
- Laboratory studies are generally not indicated in ME.
Imaging Studies
- A radiograph of the elbow is often performed to rule out associated lesions (eg, loose bodies, bony avulsion, osteoarthritis). Typically, anteroposterior and lateral films are adequate.
- Oblique views are needed if loose bodies are suggested upon examination or because of a catching or clicking sensation described by the patient.
- Valgus stress radiographs should be obtained if medial instability is suggested.
- Magnetic resonance imaging (MRI) may be helpful in looking for the characteristic pathology that is seen in chronic cases of ME; MRI also permits assessment of the medial collateral ligament and ulnar nerve.[5] Although in most cases an MRI scan is not necessary, it should be considered in individuals with atypical symptoms or in patients who are not responsive to conservative measures.
- Research suggests that ultrasonography also is useful for the diagnosis of ME. In a prospective, single-blind study, Park et al found that ultrasonographic findings were positive in 20 of 21 elbows with ME and were negative in 23 of 25 elbows without ME.[6] According to the investigators, the sensitivity, specificity, accuracy, positive predictive value, and negative predictive value of ultrasonography in the diagnosis of clinical ME were, respectively, 95.2%, 92%, 93.5%, 90.9%, and 95.8%. They therefore recommended that ultrasonography be considered as an initial imaging modality in the evaluation of ME.
Other Tests
- If ulnar nerve involvement is suggested, a nerve conduction study and electromyography should be performed.
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