Medial Collateral Ligament Pathology

Purpose: To identify patient characteristics indicative of a medial collateral ligament injury.

Stage of CPR Development: Derivation.

Rule:

1. Trauma by external force to leg
2. Rotational trauma
3. Pain with valgus stress test at 30° (PVLS30)
4. Laxity with valgus stress test at 30° (LVLS30)

Interpretation:

Variable	Sensitivity	Specificity	+LR	-LR
History > 1 out 2	0.86	0.57	2.0	0.3
History > 2 out 2	0.05	0.93	0.7	1.0
History > 1 out 2 + PVLS30	0.56	0.88	4.8	0.5
History > 1 out 2 + LVLS30	0.72	0.75	2.9	0.4
History > 2 out 2 + LVLS30	0.06	0.97	1.9	1.0
History > 1 out 2 + PVLS30 + LVLS30	0.56	0.91	6.4	0.5

Research:

1. Kastelein M, Wagemakers HPA, Luijsterburg AJ, Verhaar JAN, Koes BW, Bierma-Zeinstra SMA. Assessing Medial Collateral Ligament Knee Lesions in General Practice. The American Journal of Medicine. 2008; 121(11): 982-988.

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