“local, ipsilateral pain, occasionally extending into the thigh with pain and decreased range of motion in extension and rotation both standing and sitting.” They add that the pain could be relieved by walking, lying with knees bent, using ice packs and taking non-steroidal anti-inflammatory drugs and aggravated by prolonged standing or resting. They also stated that there would be no signs of neurologic involvement or antalgic posture, so posture that reduces pain such as leaning to one side, and no aggravation of pain from sitting, flexion or coughing/sneezing.

The study is this one:
The clinical aspects of the acute facet syndrome: results from a structured discussion among European chiropractors

Lise Hestbaek, Alice Kongsted, Tue Secher Jensen and Charlotte Leboeuf-Yde
Nordic Institute of Chiropractic and Clinical Biomechanics, Forskerparken 10B, DK-5230 Odense M, Denmark

And is spot on.