The Journal of bone and joint surgery. American volume
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J Bone Joint Surg Am · Aug 2013
Multicenter StudyClinical presentation of posterolateral rotatory instability of the elbow in children.
Posterolateral rotatory instability is a type of ulnohumeral instability seen following elbow trauma. It is caused by a deficiency in the lateral collateral ligament complex that allows the radius and ulna to subluxate as a single unit with respect to the distal part of the humerus. There are few studies on this type of instability in children. Our purpose was to evaluate cases of posterolateral rotatory instability in children to better understand its presentation and manifestation as compared with those in adults. ⋯ Therapeutic level IV. See instructions for authors for a complete description of levels of evidence.
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J Bone Joint Surg Am · Aug 2013
Randomized Controlled Trial Multicenter Study Comparative StudyOperative versus nonoperative treatment of displaced intra-articular calcaneal fractures: a prospective, randomized, controlled multicenter trial.
We conducted a prospective, randomized, controlled multicenter trial to compare operative with nonoperative treatment of displaced intra-articular calcaneal fractures. ⋯ Therapeutic level II. See instructions for authors for a complete description of levels of evidence.