Anatomical variants of the emissary veins: unilateral aplasia of both the sigmoid sinus and the internal jugular vein and development of the petrosquamosal sinus. A rare case report

We report a case of hypoplasia of the right transverse sinus and aplasia of the ipsilateral sigmoid sinus and the internal jugular vein. In addition, development of the petrosquamosal sinus and the presence of a large middle meningeal sinus and sinus communicans were observed. A 53-year-old Caucasian woman was referred for magnetic resonance imaging (MRI) investigation due to chronic headache. On the MRI scan a solitary meningioma was observed. Finally MR 2D venography revealed this extremely rare variant. (Folia Morphol 2011; 70, 4: 305–308

Unilateral agenesis of the internal carotid artery presented as transient ischaemic attack: A case report

Dysgenesis of the internal carotid artery (ICA) is a rare vascular disorder with a variety of diVerent grades (agenesis, aplasia, and hypoplasia). The left internal carotid artery is reported to be aVected by dysgenesis three times more often than the right one. Most of the patients with dysgenesis of the internal carotid artery are asymptomatic. We report a case of a patient with right internal carotid artery agenesis presented to our hospital as transient ischaemic attack. CT scans at skull base level with bone settings showed absence of the right carotid canal, consistent with congenital agenesis of the internal carotid artery. MR imaging of the brain revealed signal void of the intracranial portion of right internal carotid artery. Maximum intensity projection reconstruction conWrmed the agenesis of the right ICA, with the right middle cerebral artery fed through a dilated posterior communicating artery and the right anterior cerebral artery supplied by the anterior communicating artery (fetal type of collateral Xow). In patients with agenesis of the internal carotid artery non-invasive imaging techniques are currently the mainstay of diagnosis © Springer-Verlag 2011

Surgical repair of muscle laceration: biomechanical properties at 6 years follow-up.

Muscle injuries are challenging problems for surgeons. Muscle trauma is commonly treated conservatively with excellent outcome results while surgical repair is advocated for larger tears/lacerations, where the optimal goal is restore of function. Repair of muscle belly lacerations is technically demanding because the sutures pull out and the likelihood of clinical failure is high. Different suture techniques have been described but still the best suture is debated. We show a case of a pure vastus medialis muscle laceration surgically repaired at 6 years of follow-up

Surgical repair of muscle laceration: biomechanical properties at 6 years follow-up

Muscle injuries are challenging problems for surgeons. Muscle trauma is commonly treated conservatively with excellent outcome results while surgical repair is advocated for larger tears/lacerations, where the optimal goal is restore of function. Repair of muscle belly lacerations is technically demanding because the sutures pull out and the likelihood of clinical failure is high. Different suture techniques have been described but still the best suture is debated. We show a case of a pure vastus medialis muscle laceration surgically repaired at 6 years of follow-up

Posterior thigh muscle injuries in elite track and field athletes.

INTRODUCTION: Posterior thigh muscle injuries in athletes are common, and prediction of recovery time would be of value. HYPOTHESIS: Knee active range of motion deficit 48 hours after a unilateral posterior thigh muscle injury correlates with time to full recovery. STUDY DESIGN: Cohort study (prognosis); Level of evidence, 2. METHODS: One hundred sixty-five track and field athletes with acute, first-time, unilateral posterior thigh muscle injuries were prospectively evaluated regarding knee active range of motion deficit. This was compared with the uninjured side 48 hours after injury. A control group was also examined. Ultrasound was used to image the muscle lesion. All athletes were managed nonoperatively with the same rehabilitation protocol. The "full rehabilitation time" (interval from the injury to full athletic activities) was recorded. RESULTS: Range of motion of the affected leg was decreased in the 165 injured athletes compared with the uninjured side and the control group. Sonography identified abnormalities in 55% (90 of 165) of the injured athletes. The biceps femoris was the most commonly affected muscle (68 of 90 [75%]). The musculotendinous junction (proximal or distal) was involved in 93% (85 of 90) of lesions. Eighty-one percent (133 of 165) of athletes had active range of motion deficit of less than 20 degrees, and had returned to full performance at 2 weeks. In 6 of 165 athletes (3.6%), with active range of motion deficit of more than 30 degrees, recovery time exceeded 6 weeks, with a significant correlation between full rehabilitation time and active range of motion deficit (chi(2) = 152.560; P = .0001). CONCLUSION: Knee active range of motion deficit is an objective and accurate measurement, predicting recovery time in elite athletes