Clinical Efficacy of an Ultrasound-Guided Greater Occipital Nerve Block at the Level of C2.

Background And Objectives: The purpose of this prospective open-label study was to investigate the analgesic effects of an ultrasound-guided greater occipital nerve (GON) block at the level of C2, as the nerve courses superficially to the obliquus capitis inferior muscle.

Methods: Patients with a diagnosis of occipital neuralgia or cervicogenic headache were recruited for the study. Ultrasound-guided GON blocks at the level of C2 were performed by experienced clinicians according to a standardized protocol.

Sonographic evaluation of the extensor carpi ulnaris in asymptomatic tennis players.

Objective: To determine the prevalence of structural abnormalities and instability affecting the extensor carpi ulnaris (ECU) tendons of asymptomatic recreational tennis players by the use of high-resolution ultrasonography.

Design: Cross-sectional observational study.

Setting: Academic sports medicine center.

Saphenous neuropathy secondary to extraneural ganglion cyst 15 years after reconstruction of the anterior cruciate ligament.

This case report describes a 43-year-old woman with a previous anterior cruciate ligament reconstruction and medial meniscectomy who presented with right knee dysesthesias radiating into her medial ankle with associated allodynia. An extensive work-up was pursued, without a definitive diagnosis found or improvement in the patient's symptoms. Eventually, she was referred to Pain Medicine for an ultrasound-guided saphenous nerve (SN) block, where a scan before the injection revealed a large cyst anteromedial to the sartorius in the expected location of the SN.

Posttraumatic fat necrosis presenting as prepatellar loose bodies in an adolescent football player.

A 16-year-old high school football player presented with 4 months of anterior knee pain and small, mobile, prepatellar "lumps" after falling onto an opponent's cleat. He reported knee pain primarily during knee flexion and direct pressure during squatting and kneeling. Knee radiographs were unremarkable.