The annual incidence of traumatic spinal cord injury worldwide is estimated to be 35 patients per million. Nonmissile penetrating spinal injuries most commonly occur in the thoracic region, and the majority has neurologic deficits on admission. The management of patients who lack neurologic deficits is controversial due to the risk of neurologic status alteration intraoperatively. However, fail...

PURPOSE To evaluate a new pulsed-electron avalanche knife design for creating a continuous curvilinear capsulotomy (CCC) and compare the CCC with a mechanical capsulorhexis. SETTING Department of Ophthalmology, Stanford University, Stanford, California, USA. METHODS In this study, CCCs were created in freshly enucleated bovine eyes and in rabbit eyes in vivo. The cutting velocity was adjust...

BACKGROUND The etiology and appropriate management strategy of chronic encapsulated expanding hematoma during pregnancy after gamma knife radiosurgery for arteriovenous malformation (AVM) remain unclear. CASE DESCRIPTION A 34-year-old female developed chronic encapsulated expanding hematoma during late pregnancy, after angiographic disappearance of cerebellar AVM following two courses of gamm...

Tumors of the endolymphatic sac are locally invasive temporal bone neoplasms. Radical surgical excision is the treatment of choice; however, the aggressive nature of these tumors can make total excision impossible. Recurrence is common in cases of incomplete resection. Gamma knife radiosurgery was used to treat two patients with primary tumors of the endolymphatic sac and one recurrent case. Al...

Trochlear nerve schwannomas are extremely rare. We present a surgically excised case of trochlear nerve schwannoma followed by Gamma Knife (ELEKTA, Stockholm, Sweden) after histologic confirmation. A 52-year-old man presented with diplopia, gait disturbance, and sensory disturbance. Magnetic resonance imaging demonstrated a large cystic mass at ambient cistern on the right side. Subtotal excisi...

introduction the gamma knife system is designed solely for non-invasive treatment of brain disorders, and it benefits from stereotactic surgical techniques. dose calculations required in the system are performed by gammaplan code; in this code, brain tissue is considered uniform. in the present study, we evaluated the effect of gamma knife system on the obtained dose through simulating a real h...

OBJECTIVE To describe cases of intra-orbital knife blade foreign body following stabs to the orbit, together with a novel technique for removal. METHODS Retrospective case series of 3 patients. RESULTS All 3 patients had knife blades embedded in the orbit as a result of assault. The blades assumed the same direction within the orbit with varying degrees of depth, one causing serious vascula...

Emergency Department, complaining of exertional dyspnea. A review of his medical history revealed that 3 years earlier he had tried to swallow a knife. It was removed from the esophagus by endoscopy. Two years before admission he told his relatives that he had swallowed another knife, but they did not believe him. Posteroanterior (Fig. 1) and lateral (Fig. 2) views of the chest were obtained, d...

The incidence of traumatic spinal cord injury is reported as 30-40 million per year. Among these, stab wounds to the canal are usually rare. These injuries often lead complete or incomplete neurological deficits. An appropriate management can ensure good functional recovery for approximately two-third patient. As these cases uncommon, their treatment protocols still controversial and under eval...