Treatment of pincer-type femoroacetabular impingement.

Pincer femoroacetabular impingement (FAI) consists of pathological contact between the acetabular labrum and rim and the femoral head-neck junction. Manifold conditions underlie pincer FAI: anatomical abnormalities, malorientation of the acetabulum, torsional abnormalities of the neck and femoral shaft (these defects can be constitutional, post-traumatic or post-surgical), and involvement in sports characterized by repeated and sudden maximum joint excursions. In a high percentage of cases, pincer FAI is associated with cam FAI.

Successful surgical treatment of a four part fracture dislocations of the proximal humerus and coracoid avulsion.

racture-dislocation of the proximal humerus (usually occurring after violent trauma) may be more frequently associated with a poor long-term results because the destruction of the hinged periosteum is associated with an high-risk of avascular necrosis of the head of the humerus (1, 2). Concomitant coracoid fracture with anterior shoulder dislocation in such case is something extremely rarely reported (8). Herein, we describe a challenging case of a 44 years old man with 4-parts fracture of the right proximal humerus, dislocation of the glenohumeral joint associated with coracoid avulsion.

Use of innovative biomimetic scaffold in the treatment for large osteochondral lesions of the knee.

Purpose: Large osteochondral defects involve two different tissues characterized by different intrinsic healing capacity. Different techniques have been proposed to treat these lesions with results still under discussion. The aim of the study is to evaluate the clinical outcome of 19 patients treated with a type I collagen-hydroxyapatite nanostructural biomimetic osteochondral scaffold at minimum follow-up of 2 years.