Posterior Meniscus Root Repair Using a Retensionable Knotless All-Suture Anchor.

Meniscus root injuries lead to increased tibiofemoral contact pressures and rapid progression of osteoarthritis. Early recognition and treatment with a meniscal root repair can restore biomechanics and help preserve the joint. The transtibial pullout repair and suture anchor repair are the most commonly used techniques to achieve anatomic fixation of the meniscal root.

Termination of persistent atrial fibrillation by ablating sites that control large atrial areas.

Aims: Persistent atrial fibrillation (AF) has been explained by multiple mechanisms which, while they conflict, all agree that more disorganized AF is more difficult to treat than organized AF. We hypothesized that persistent AF consists of interacting organized areas which may enlarge, shrink or coalesce, and that patients whose AF areas enlarge by ablation are more likely to respond to therapy.

Methods And Results: We mapped vectorial propagation in persistent AF using wavefront fields (WFF), constructed from raw unipolar electrograms at 64-pole basket catheters, during ablation until termination (Group 1, N = 20 patients) or cardioversion (Group 2, N = 20 patients).