Effect of an Annular Closure Device (Barricaid) on Same-Level Recurrent Disk Herniation and Disk Height Loss After Primary Lumbar Discectomy: Two-year Results of a Multicenter Prospective Cohort Study.

Study Design: A prospective cohort study.

Objective: To evaluate whether an annular closure device could be implanted safely to reduce same-level recurrent disk herniation, or attenuate disk height loss and improve the outcome after lumbar discectomy.

Summary Of Background Data: Same-level recurrent disk herniation, disk height loss, and progressive degeneration are common complications and sequelae after lumbar discectomy.

Effect of anular closure on disk height maintenance and reoperated recurrent herniation following lumbar diskectomy: two-year data.

Objective: To assess the potential benefits of disk reherniation reduction and disk height maintenance in limited diskectomy combined with the implantation of the anular closure device.

Summary And Background Data: Postoperative disk height loss is apparent in most patients undergoing lumbar diskectomy for herniated nucleus pulposus. Less favorable patient outcomes are associated with significant loss in disk height that can occur after aggressive disk tissue removal.

Endplate changes following discectomy: natural history and associations between imaging and clinical data.

Purpose: Some patients will experience post-operative back pain following lumbar discectomy, and the potential sources for that pain are poorly understood. One potential source is the vertebral endplates. The goal of this study was to document the changes that occur in lumbar endplates following discectomies, and to assess associations between endplate changes and clinical outcomes.

Clinical outcomes in patients after lumbar disk surgery with annular reinforcement device: two-year follow up.

Annular Reinforcement Device represents a modification of operative treatment of intervertebral disk herniation. It is a prosthesis that is anchored into the body of the vertebra. The intradiscal part of the implant is placed in the inner part of the annulus fibrosus defect.

Cost savings associated with prevention of recurrent lumbar disc herniation with a novel annular closure device: a multicenter prospective cohort study.

Objective: Same-level recurrent disc herniation is a well-defined complication following lumbar discectomy. Reherniation results in increased morbidity and health care costs. Techniques to reduce these consequences may improve outcomes and reduce cost after lumbar discectomy.

Sinus pericranii in the left frontal region involving the superior eyelid: a case report.

Background: Sinus pericranii is a rare asymptomatic communication between the intracranial and extracranial venous drainage pathways. The venous flow in this condition circulates through abnormal dilated veins in both directions.

Patient/methods: We describe an unusual location of an accessory sinus pericranii that involved the left frontal bone along with the superior orbital rim and the upper eyelid, with special focus on therapy.

The high-risk discectomy patient: prevention of reherniation in patients with large anular defects using an anular closure device.

Purpose: With lumbar discectomy for disc herniation, surgeons must choose between limited nucleus removal associated with higher reherniation risk or more aggressive nucleus removal associated with increased back pain and disc degeneration. This trade-off is particularly challenging in patients with large anular defects, which carry the highest risk of reherniation. We examined the effect of an anular closure device on reherniation and clinical outcomes.

Charcot shoulder caused by Chiari type I malformation with syringomyelia with six-year follow-up.

We are presenting a case report of neuropathic arthropathy of the shoulder secondary to a syringomyelia and Chiari type I malformation, with detailed clinical and radiological findings. Neuropathic joints were first described in 1868 by Charcot, and subsequently were described in many types of peripheral diseases and central neuron diseases. There are many causes of syringomyelia, and one of the causes of this disease is a Chiari type I malformation.

Nightmare complication after lumbar disc surgery: cranial nontraumatic acute epidural hematoma.

Study Design: Case report.

Objective: The nontraumatic cranial epidural hematoma is an extremely rare clinical entity and it commonly occurs in the presence of infectious diseases as complication of sinusitis, coagulopathy, vascular malformation of the dura, hemorrhagic tumor, in patients with sickle cell disease, systemic lupus erythematosus, after open heart surgery, and in patients on hemodialysis.

Summary Of Background Data: We reported a case of spontaneous epidural hematoma that occurred after herniated disc surgery.

Unrecognized hemangiopericytoma of posterior cervical region with intracranial extension.

Hemangiopericytoma of the posterior cervical space and occipital bone is an uncommon lesion which should be considered in the differential diagnosis of a lumpy and highly vascular lesion of the posterior cervical space. We report the case of a 47-year-old woman who experienced sudden and painful occipital and posterior cervical swelling. She underwent a blind biopsy which was complicated by profuse bleeding.

A prospective cohort study of close interval computed tomography and magnetic resonance imaging after primary lumbar discectomy: factors associated with recurrent disc herniation and disc height loss.

Study Design: Prospective cohort study.

Objective: We performed a prospective cohort study with standardized postoperative lumbar imaging every 3 months for a year then annually to assess the incidence and factors associated with same-level recurrent disc herniation.

Summary Of Background Data: The true incidence of same-level recurrent disc herniation after lumbar discectomy is unclear.

Intracranial recurrence and distant metastasis of scalp dermatofibrosarcoma protuberans.

Only few cases of scalp dermatofibrosarcoma protuberans with intracranial and distant metastasis have been reported. Here we report a case of scalp dermatofibrosarcoma protuberans with frequent local recurrence, intracranial invasion and with distant lung metastasis during 6 years of treatment. We would like to emphasize difficulties in surgical treatment of such invasive and locally recurrent tumors of scalp, and necessity to understand new molecular pathogenesis of dermatofibrosarcoma protuberans and potential treatment strategy with imatinib for patients with surgically untreatable disease.

Posttraumatic cerebrospinal fluid cyst of the orbit.

A 41-year-old woman had a motor vehicle accident and sustained a fracture of the left temporal bone with anterior and middle skull base involvement. After 10 months, she developed persistent right-sided exophthalmus. Orbital computed tomography scans showed a soft tissue mass in the roof of the right orbit with an inferior calcified border.