This work focused on the process of bone repair of defects in standardized calvaria of Wistar rats treated with biphasic calcium phosphate (BCP), mineral trioxide aggregate (MTA), or a combination of the two. Eighty Wistar rats were divided into four treatment groups and were examined at 2 and 8 weeks. A surgical defect was created in the calvaria using a 6-mm diameter trephine drill. The cavit...

INTRODUCTION Osteoid osteoma of the acetabulum is a rare orthopedic condition. Only few cases are reported in the literature. Diagnosis of such pathology can sometimes be challenging. Arthroscopic excision of the lesion seems to be a useful minimally invasive treatment option. We report a case of osteoid osteoma of the acetabulum in an adult aged 25 years old treated arthroscopically. CASE RE...

Osteoid osteomas are self-limiting, benign, bone-forming neoplasms.1,2 First described by Jaffe in 1935,3 these lesions are common and account for 10 to 12% of all benign bone tumors. These lesions almost always occur in patients younger than 30 years, are more common in males than females (approximately 2 to 1 ratio), and over 50% of the time are foundwithin the metaphysis or diaphysis of long...

Osteoid osteoma is a small, benign bone neoplasm that consists of a well-demarcated nidus surrounded by a reactive zone of sclerosis.1,2 It is of unknown etiology and accounts for approximately 10% of symptomatic benign bone tumors.3 Initial treatment of patients with osteoid osteoma consists of nonsteroidal anti-inflammatory drugs (NSAIDs).4 If the pain is unresponsive to medical therapy or if...

A 14-year-old patient presented with chronic shoulder pain evolving since three years. The pain persisted despite the various medicated and physical treatments followed. The clinical examination noted a normal shoulder examination with pain facing the right scapula without local inflammatory signs. There were no abnormalities in the biological examinations, in particular absence of biological i...

This study has examined the osteogenic and chondrogenic differentiation of human foetal femur-derived cells in 3-dimensional pellet cultures. After culture for 21-28 days in osteogenic media, the pellets acquired a unique configuration that consisted of an outer fibrous layer, an osteoid-like shell surrounding a cellular and cartilaginous region. This configuration is typical to the cross secti...

INTRODUCTION We present a case report highlighting the unusual location and atypical imaging characteristics of an osteoid osteoma in the juxta-articular region of the femoral head, and treatment of the condition with radiofrequency ablation. This treatment option is low in both risk and morbidity and is therefore the best option in lesions that are difficult to access surgically because of the...

To perform a fast and reproducible analysis in bone histomorphometry, we developed an automatic method for calculating static and dynamic parameters. A color automatic image analyzer (SAMBA 200) was used to obtain the usual parameters of bone histomorphometry: bone volume (Cn-BV%TV), osteoid volume (Cn-OV%BV), and osteoid surface (Cn-OS%BS). A specialized algorithm was designed for calculation ...

CONTEXT Percutaneous radiofrequency ablation (RFA) of osteoid osteoma has a high technical and clinical success rate. However, there is limited data on its use in the pediatric population, especially in technically challenging locations. OBJECTIVE To assess the safety and efficacy of computed tomography (CT)-guided percutaneous RFA of osteoid osteoma in pediatric population. PATIENTS AND ME...

A 32-year-old male patient presented to our clinic with chronic left knee pain that was ongoing for about 1.5 years. The patient visited several times our clinic and the other clinics; conservative treatment (including rest, knee brace, and ice application with NSAIDs) was recommended by various different doctors. The anamnesis, physical examination, and plain radiography were nonspecific. Earl...