The first section of this paper reviews the research on development avascular tumours, which are tumours without a blood artery network to supply their cells with nutrients. process is then illustrated utilising classical PDE model, composed an outer layer actively dividing and inner core dead (referred as necrotic cells) (called proliferating cells). model takes into account both necrosis (a t...

Summary. We have developed a working classification of biotechnological products, defined the conceptual basis for their use in osteoarthritis and avascular necrosis hip knee joints, identified areas further study analysis results regenerative technologies these diseases. The main principles joints include both improvement techniques introduction products used to treat diseases, differentiated ...

Talus fractures often lead to late post-traumatic arthrosis. In such cases, the use of latest generation, cementless prostheses has been hindered by the presence of avascular necrosis. We report the case of a 65-year-old patient who presented four years after a talus neck fracture. He had painful ankle arthrosis (AOFAS ankle-hindfoot score 19) and avascular necrosis, with collapse of the entire...

We used technetium-99m antimony colloid to visualize the bone marrow of the head of the femur within twenty-four hours after interruption of the blood supply by subcapital osteotomy and section of the ligamentum teres in thirteen rabbits and within twenty-four hours after a subcapital fracture in thirty patients. Of the rabbits, all showed loss of marrow radioactivity over the affected femoral ...

A case of avascular necrosis of the lesser curve of the stomach following a highly selective vagotomy (HSV) for a gastric ulcer is reported. It is fortunately rare, but is a frightening complication. The necrosis, which is presumably ischaemic in origin, is caused by total devascularization of the lesser curvature of the stomach. The complication is usually diagnosed late and has a considerable...

INTRODUCTION Chances of avascular necrosis of acetabulum are rare as it enjoys a rich blood supply. But cases of post - traumatic avascular necrosis of acetabulum following fracture of posterior column have been well documented. Importance of identifying and suspecting the avascular necrosis of acetabulum is essential in cases of failed fixation of fracture acetabulum, previously operated using...

OBJECTIVE This study aimed to present seven cases of avascular necrosis of the sesamoid and report the role of bone scintigraphy in the diagnosis of these patients. METHODS Seven patients with clinical suspicion of avascular necrosis of the sesamoid underwent three-phase bone scintigraphy with 30 mCi of (99m)Tc-MDP. RESULTS Most of the patients were young female adults with complaints of li...

Objective The purpose of this study is to evaluate the performance of dynamic hip screw for the treatment of dislocated femoral neck fractures in young patients, focusing on osteonecrosis. Methods A series of 53 patients with less than 55 years of age were retrospectively evaluated. All patients had dislocated femoral neck fractures (Garden III or IV) and were treated with DHS. Ficat's stagin...

BACKGROUND Hip resurfacing is a conservative type of total hip arthroplasty but its use is controversial, especially in patients with osteonecrosis. The aim of this study was analysis of the clinical and radiographic outcomes of hip resurfacing in patients with osteonecrosis. MATERIAL/METHODS Between 2007 and 2008, 30 hip resurfacing arthroplasties were performed due to osteoarthritis seconda...