Reverse Shoulder Arthroplasty for Proximal Humeral Fractures: Is the Bigliani-Flatow Stem Suitable for Tuberosity Fixation and Healing?

: The aim of the study was to investigate the clinical, functional, and radiographic results of patients affected by three- or four-part proximal humeral fractures treated with reverse total shoulder arthroplasty, to investigate whether a prosthetic stem nonspecifically designed for fractures (i.e., the Bigliani-Flatow stem) promotes tuberosities' healing, and to evaluate the impact of tuberosity fixation and healing on the outcomes.

Os Acromiale in Professional Tennis Players.

Background: Os acromiale is a rare condition mostly reported in the literature through case reports, imaging studies, or reports of surgical treatment. This condition is the result of nonunion of growth plates of the acromion during the natural developmental process that occurs between 15 and 25 years of age. Its incidence is low, and few studies are available in the literature on athletes with high functional demands, and particularly on athletes within a specific sport.

Bipolar Acromioclavicular Joint Resection.

Acromioclavicular (AC) joint arthropathy remains one of the most common causes of shoulder pain. In the case of AC joint arthropathy resistant to conservative treatment, most authors have recognized distal clavicle resection as the gold-standard treatment. However, some challenges remain to be solved.

Resection arthroplasty after failure of a radial head prosthesis: a case report.

Radial head represents a secondary elbow stabilizer for varus-valgus and postero-lateral stress. In complex fractures, that cannot be synthesized, the presence of associated ligament injuries makes radial head replacement necessary to restore elbow stability. This study evaluates how the elbow responds to a prosthetic removal after a complex injury repair.

Patient specific instrumentation in total knee arthroplasty: a state of the art.

Patient specific instrumentation (PSI) is a modern technique in total knee arthroplasty (TKA) aiming to facilitate the implant of the prosthesis. The customized cutting blocks of the PSI are generated from pre-operative three-dimensional model, using computed tomography (CT) or magnetic resonance imaging (MRI). A correct surgical plan is mandatory for a good surgical implant.

Predominance of the critical shoulder angle in the pathogenesis of degenerative diseases of the shoulder.

Hypothesis: The critical shoulder angle (CSA) could be responsible for cuff tears and concentric osteoarthritis. We aimed to assess this association when potential confounding factors were excluded and to test the hypothesis that more extreme CSAs are associated with larger tears and more severe osteoarthritis.

Methods: The study cohort was composed of 200 patients with primary concentric osteoarthritis (40 patients), isolated supraspinatus tears (40 patients), cuff tears involving at least the supraspinatus and infraspinatus (40 patients), and no history of shoulder problems (control group, 80 patients).

Subclinical hypothyroidism and diabetes as risk factors for postoperative stiff shoulder.

Purpose: Postoperative stiffness can be a disabling condition after arthroscopic shoulder surgery. The purpose of this study was to analyse the potential contribution of subclinical forms of hypothyroidism and diabetes in the development of postoperative shoulder stiffness.

Methods: A prospective study was conducted on 65 consecutive patients scheduled for arthroscopic subacromial decompression or rotator cuff tear repair.