Finding an appropriate soft-tissue grafting material to close a wound located over the ankle and heel can be a difficult task. The distally based lesser saphenous venofasciocutaneous flap mobilized from the posterior aspect of the upper leg, used as an island pedicle skin flap, can be useful for this purpose. The vascular supply to the flap is derived from the retrograde perfusion of the accomp...

Introduction Pedicle screws are commonly used in posterior internal fixation systems to stabilise the spine for fusion procedures. Rigid fixation systems place high requirements on the load-carrying capacity at the screw-bone interface. Poor bone quality decreases the integrity of this interface, increasing screw micromotion and consequently reducing screw stability and possibly fusion success....

INTRODUCTION: In a pedicle screw fixation, the degree of osseointegration between a screw and the bone is an essential factor for the stability and fusion. In patients with osteoporosis, however, there is a high possibility for a pedicle screw loosening. Owing to this, there is a difficulty in determining the surgical indications. Previous biomechanical studies have reported that a pedicle scre...

Introduction: Despite widespread use of pedicles in lumbar spine fixation, relatively little is known regarding variations in pedicle structure particularly in osteoporosis. It is valuable to understand this relationship because pedicles provide an important area for screw fixation and a point of complication when screws penetrate through weak pedicle walls into adjacent structures. Hirano et a...

Abstract Background Treatment of post-traumatic osteochondral defects in the radiocarpal and distal radioulnar joint with nonvascularized metatarsal articular bone grafting is an option to restore (cartilage) surface wrist function. Purpose To evaluate clinical midterm results 10 consecutive patients who were treated a graft for cartilage lunate facet, scaphoid sigmoid notch, or radial part uln...

When handling large wounds, zone of injury is a key concept in reconstructive microsurgery, as it pertains to the selection recipient vessels. Historically, surgeons have avoided placing microvascular anastomosis within widely traumatized, inflamed, or radiated fields. The harvest vein grafts facilitates reconstruction complex cases by extending arterial and/or venous pedicle length. To illustr...

The clinical and radiographic results of vascularized pedicle iliac bone grafting (PBG) and Sugioka's transtrochanteric anterior rotational osteotomy of the femoral head (ARO) for idiopathic osteonecrosis of the femoral head were compared. Four male patients with bilateral osteonecrosis of the femoral head were treated with PBG in the first hip and with ARO in the second. All patients had stage...

Surgical approaches for stabilizing the craniovertebral junction (CVJ) are classified as either anterior or posterior approaches. Among the anterior approaches, the established method is anterior odontoid screw fixation. Posterior approaches are classified as either atlanto-axial fixation or occipito-cervical (O-C) fixation. Spinal instrumentation using anchor screws and rods has become a popul...