05) was adopted selleck chem inhibitor in all the cases. RESULTS A detachment of the ulna from trochlea was observed in two planes: sagittal and transverse, after the selective sectioning of the MCL with valgus opening in the present study. The displacement in the sagittal plane was produced by the action of gravity, as the ligament was sectioned. In the transverse plan, the displacement was caused by the disengagement of the ulna from medial to lateral between the humeral condyles. With the MCL intact, even with the valgus maneuver, the medial opening of the elbow remained unaltered during the flexion and extension movement. GPA With the MCL intact, the elbow remained stable; there was no opening between the trochlea and the trochlear notch.

In the first stage, after the sectioning of the posterior band, the elbow remained stable, not presenting opening at the angles of 135��, 110��, 90��, 70��, 50��, 30�� and 0�� of elbow flexion. The second stage, after the sectioning of the posterior band, accompanied by the articular capsule up to the start of the anterior band, did not present any opening at any angle of flexion and during the maneuvers with and without elbow stress either. The sectioning of the posterior band and of the articular capsule up to the limit of the anterior band, executing the proposed maneuver, did not result in medial opening. The contribution of the posterior band to medial stabilization of the elbow was null. In the third stage the entire MCL was sectioned, including posterior band and articular capsule up to the end of the anterior band.

The flexion and extension movement was performed without stress, followed by the valgus stress maneuver. Table 1 shows the mean openings and the differences between the two tests. Table 1 Mean openings in centimeters of GPA, after sectioning of the posterior band and of the articular capsule up to the end of the anterior band, without stress and with stress. GAP The first stage started with the sectioning of the anterior band of the MCL accompanied by the flexion and extension movement without stress, followed by the valgus stress maneuver; the mean openings and the differences between the two tests were determined at this stage. (Table 2 and Figure 5) Table 2 Mean openings in centimeters of GAP after sectioning of the anterior band of the MCL, without stress and with stress.

Figure 5 Behavior of the curves with stress and without stress and their difference, in the first stage of GAP. Larger openings between 50o and 70o of elbow flexion. The GSK-3 results obtained in the second stage can be observed in Table 3 that presents the mean openings and the differences between the two tests. (Figure 6) Table 3 Mean openings in centimeters sectioning the anterior band and the articular capsule up to the start of the posterior band of the MCL, in GAP, without stress and with stress. Figure 6 Behavior of the curves with stress, without stress and their difference, in the second stage of GAP.