The Sonographic Posterolateral Rotatory Stress Test for Elbow Instability: A Cadaveric Validation Study.

Background: Although clinical tests can detect posterolateral rotatory instability (PLRI) of the elbow, the ability of ultrasound to evaluate PLRI has not been assessed.

Objective: To determine whether increasing stages of posterolateral rotatory subluxation of the elbow could be assessed accurately with a sonographic posterolateral rotatory stress test.

Design: Cadaveric study.

Variability of the Ischiofemoral Space Relative to Femur Position: An Ultrasound Study.

Background: Ischiofemoral impingement is caused by compression of the quadratus femoris muscle between the ischial tuberosity and lesser trochanter. The evaluation of ischiofemoral impingement includes radiologic studies to evaluate the ischiofemoral space dimensions. No prior study has evaluated the effect of femoral position on ischiofemoral space dimensions.

Sonographically guided distal biceps tendon injections: techniques and validation.

Objectives: The primary purpose of this investigation was to describe and validate sonographically guided techniques for distal biceps peritendinous/intratendinous injections using a cadaveric model.

Methods: A single experienced operator completed 18 sonographically guided distal biceps peritendinous injections and 15 sonographically guided distal biceps intratendinous injections in 18 unembalmed cadaveric elbow specimens (11 male and 7 female; age, 53-100 years; body mass index, 19.4-42.

Sonographically guided obturator internus injections: techniques and validation.

Objectives: The primary purpose of this investigation was to describe and validate sonographically guided techniques for injecting the obturator internus (OI) muscle or bursa using a cadaveric model.

Methods: A single experienced operator completed 10 sonographically guided OI injections in 5 unembalmed cadaveric pelvis specimens (4 female and 1 male, ages 71-89 years with body mass indices of 15.5-24.

Feasibility of first metatarsophalangeal joint injections for sesamoid disorders: a cadaveric investigation.

Objective: To determine whether accurately placed first metatarsophalangeal joint (MTPJ) injections consistently deliver injectate to the metatarsosesamoid articulations.

Design: Prospective anatomic cadaver study.

Setting: Procedural skills laboratory at a tertiary care academic institution.