An Overlooked Cause of Posterior Knee Pain: Ultrasound Imaging and Guided Injection for Proximal Lateral Gastrocnemius Tendon Sprain.

Proximal lateral gastrocnemius tendon injury is an overlooked cause of posterior knee pain. As the proximal gastrocnemius tendon attaches on the distal femur; its pain is more deeply located and can also be aggravated by flexion of the affected knee. In the present report, sonopalpation showed that the painful tendon appeared to have lost its fibrillary pattern and become thickened and hypoechoic as well.

Extra-tunnel Compression Mimicking Tarsal Tunnel Syndrome: Ultrasound Imaging for a Plantar Ganglion Cyst.

We reported a 43-year-old man with right-foot numbness under the tentative diagnosis of tarsal tunnel syndrome. The initial ultrasound examination did not identify any remarkable findings at the level of the medial malleolus. Owing to the failure of conservative treatments, he was referred for US-guided injection of the tibial nerve.

Association of Bicipital Peritendinous Effusion with Subacromial Impingement: A Dynamic Ultrasonographic Study of 337 Shoulders.

Bicipital peritendinous effusion (BPE) is the most common biceps tendon abnormality and can be related to various shoulder ultrasonographic findings. Since the association of BPE with subacromial impingement is unclear, our study aimed to explore its association with the dynamic subacromial impingement test during ultrasound (US) imaging. We included 337 shoulders referred for US examinations and quantified the amount of BPE.