Knee Stability and Movement Coordination Impairments: Knee Ligament Sprain: Clinical Practice Guidelines Linked to the International Classification of Functioning, Disability, and Health from the Orthopaedic Section of the American Physical Therapy Association

. Author manuscript; available in PMC: 2011 Aug 21.

Published in final edited form as: J Orthop Sports Phys Ther. 2010 Apr;40(4):A1–A37. doi: 10.2519/jospt.2010.0303

Pain With Valgus Stress Test at 30°
ICF category	Measure of impairment of body function, pain in joint

Description	The amount of pain at the MCL during a valgus stress test performed with the knee at 30° of flexion

Measurement method	The patient is supine. While facing toward the feet of the patient, the examiner holds the ankle of the tested limb with the outside hand. The limb is extended over the edge of the testing table. The examiner places his inside thigh against the thigh of the tested limb. The knee is flexed to 30°. The opposite hand of the examiner is placed over the medial joint line of the tested limb. The examiner applies a valgus force by abducting the ankle and stabilizing the thigh. Pain at the MCL is suggestive of a disruption to the MCL. The amount of pain using the Numeric Pain Rating Scale (NPRS) at the MCL is recorded.⁷⁶

Nature of variable	Ordinal

Units of measurement	0–10 NPRS

Measurement properties	Diagnostic Accuracy⁷⁶
			95% CI
	Sensitivity	78%	64–92%
	Specificity	67%	57–76%
	Negative likelihood ratio	0.3	0.2–0.6
	Positive likelihood ratio	2.3	1.7–3.3