Journal of Bone and Joint Surgery, 1960;42:13-22.
© 1960 by The Journal of Bone and Joint Surgery, Inc
The Pathomechanics of the Knee Joint
I. The Medial Collateral Ligament and Lateral Tibial Plateau Fractures
Albert F. Martin M.D.1
1 Departments of Orthopaedic Surgery, University of California Medical School and the Samuel Merritt Hospital, Oakland, California
On the basis of the experimental data presented, it seems logical to conclude that fracture of the lateral tibial plateau and rupture of the medial collateral ligament may occur simultaneously. In such circumstances, the medial collateral ligament injury may be demonstrated by gentle abduction stress testing of both knees and comparing the medial clear space of both the normal and the involved knees. Using this test, an increase of more than 1.0 millimeter in the medial clear space is presumptive evidence of either partial or complete rupture of the medial collateral ligament.