BACKGROUND Biomechanical and histological properties of osteochondral transplantation have not been extensively examined. HYPOTHESIS Osteochondral grafts have properties similar to native articular cartilage. STUDY DESIGN Controlled laboratory study. METHODS A 2.7 mm (diameter) x 4.0 mm (depth) osteochondral defect was created in 17 New Zealand white rabbit knees. An osteochondral graft, ...

conclusions glenohumeral joint reduction with reconstruction of the humeral head seems to be possible even in a neglected locked posterior shoulder fracture-dislocation. if the depressed osteochondral fragment is still spheric, signs of the avascular necrosis are absent on ct, and mal:union: of the fragment has occurred, it is quite possible to reconstruct the head. although results of the case...

Osteochondral lesion of the talus (OLT) is a broad term used to describe an injury or abnormality of the talar articular cartilage and adjacent bone. Historically, a variety of terms have been used to refer to this clinical entity including osteochondritis dissecans, osteochondral fracture, and osteochondral defect. Currently, six characteristics are used to categorize a particular lesion (Tabl...

OBJECTIVE To determine the thermal effects of monopolar radiofrequency energy (mRFE) on bovine articular cartilage when it was moved at different speeds and using varying application forces. METHODS Thirty-six fresh osteochondral sections divided into two groups (18 sections/group) were used in this study. The first group was tested at three speed rates of mRFE probe (1 mm/sec, 5 mm/sec and 1...

Introduction Osteochondral allograft ankle transplantation [1] seems to provide a very innovative and viable alternative for the treatment of post-traumatic ankle arthritis in selected individuals, mostly in young and active patients. The rationale behind this surgical procedure is essentially the transplantation of intact organ as hyaline articular cartilage, into a diseased or damaged area of...

Interest in osteochondral repair has been increasing with the growing number of sports-related injuries, accident traumas, and congenital diseases and disorders. Although therapeutic interventions are entering an advanced stage, current surgical procedures are still in their infancy. Unlike other tissues, the osteochondral zone shows a high level of gradient and interfacial tissue organization ...

The presented study is focused on the generation of osteochondral implants for cartilage repair, which consist of bone substitutes covered with in vitro engineered cartilage. Re-differentiation of expanded porcine cells was performed in alginate gel followed by cartilage formation in high-density cell cultures. In this work, different combinations of growth factors for the stimulation of re-dif...

OBJECTIVE To evaluate the clinical outcomes of mosaicplasty in the treatment of focal chondral and osteochondral defects of joints among elite football players. METHODS Case series; Level of evidence, 4. The results of mosaicplasty were prospectively evaluated with 1-year intervals with patient-reported outcome measures, radiographs, and sports participation. RESULTS Sixty-one patients who ...

Proximal interphalangeal joint fracture dislocations are challenging injuries that can be managed in a wide variety of ways. The fracture dislocations of the PIP joints are classified by their mechanical stability and the percentage of joint involved in the fracture. Fracture dislocations that remain stable with less than 30 degree of flexion of the PIP Joint and those that have less than 20% o...

Treatment Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1089 Nonoperative Management . . . . . . . . . . . . . . . . . . . . . . . . . 1089 Primary Repair Versus Arthroscopic Debridement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1089 Microfracture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1092 Au...