Using high-resolution, in situ imaging of a hard, wedge-shaped model asperity sliding against a metal surface, we demonstrate a new mechanism for particle formation and delamination wear. Damage to the residual surface is caused by the occurrence of folds on the free surface of the prow-shaped region ahead of the wedge. This damage manifests itself as shallow crack-like features and surface tea...

The diaphragm is grasped, and as much of the anterior diaphragm as possible is pulled into a retaining clamp. This maneuver is easier to perform for the right diaphragm than the left diaphragm, owing to the risk of incorporating viscera on the left. Upon initial placement of the clamp, it is evident that all of the diaphragm that would optimally be resected cannot occur in one application. This...

Peyronie's disease is a disorder caused by fibrosis of the tunica albuginea, which results in penile deformity, pain, and can be associated with erectile dysfunction. Treatment options include a variety of medical and surgical approaches, with no clear consensus as to the best treatment option. Many medical therapies have been investigated, including oral, topical, injectable, and external-ener...

PURPOSE The purpose of this study was to evaluate the outcomes and identify predictors of success for arthroscopic posterior Bankart reconstruction with modern suture anchor repair and anterior capsulolabral plication in a well-defined patient population-recurrent, traumatic, involuntary, unidirectional posterior shoulder instability. METHODS Patients with recurrent, traumatic, involuntary, u...

Objective: This study seeks to evaluate the results of surgery performed according to the etiological causes of diaphragmatic eventration or paralysis. Method: Files of 54 patients (35 males, 19 females; mean age: 39.1 ± 3.01 years) who had undergone diaphragm plication between January 2005 and June 2011 in two clinics located in Istanbul were studied in terms of pulmonary spirometry, applied s...

BACKGROUND Numerous surgical options for the management of engaging Hill-Sachs lesions exist, of which remplissage has emerged as one of the most popular arthroscopic techniques. Remplissage is not without disadvantages, however, and has been demonstrated to potentially result in a loss of external rotation (ER) due to nonanatomic tethering of the infraspinatus tendon and a potential decrease i...