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Following an amputation of the extremities, chronic neuropathic pain and discomfort, such as phantom limb pain (phantom pain), phantom sensation, and stump pain may occur. Clinical patterns of phantom pain, phantom sensation, and pump pain may overlap and these symptoms may also exist in one patient. Serious trauma to the upper limbs can result in brachial plexus avulsion (BPA). If BPA occurs at the same time as severe trauma of the upper extremity and the amputation of the upper limb is performed, chronic neuralgia caused by BPA may be mistaken for chronic amputation pain, such as phantom limb pain or stump pain. No major treatment advances in phantom pain have been made. However, unlike phantom limb pain, chronic neuropathic pain caused by BPA can be effectively treated with dorsal root entry zone lesioning (DREZ)-otomy. We report a patient who suffered for 34 years because the neuralgia caused by BPA was accompanied by an amputation of the arm, and so was thought to be amputation stump pain rather than BPA pain. The patient's chronic BPA pain improved with microsurgical DREZ-otomy.Idiopathic hypertrophic spinal pachymeningitis (IHSP) is a rare, diffuse inflammatory fibrosis of the dura mater that can lead to spinal cord compression. https://www.selleckchem.com/products/Sunitinib-Malate-(Sutent).html Though the optimal treatment is controversial, some reports recommend decompressive surgery and postoperative steroid therapy. However, we encountered a case of pachymeningitis that worsened after decompressive surgery. A 79-year-old woman presented with gait disturbance and bilateral lower extremity weakness that began 6 months prior. She had radiating pain on the C5 and T1 dermatomes and clumsiness in both hands. Magnetic resonance imaging (MRI) revealed diffuse thickening of the posterior longitudinal ligament of C6 to T4/5 and ligamentum flavum of C3/4 to T4/5, causing central canal stenosis and compressive myelopathy. She underwent posterior decompressive laminectomy from C4 to T1 total (T2 subtotal) and cervicothoracic screw fixation. During surgery, we found severe adhesion of the posterior longitudinal ligament and ligamentum flavum to the dura mater. Chronic inflammation with fibrosis and lymphoplasmacytic infiltration were present. After surgery, the patient's motor weakness worsened. Despite steroid treatment, her symptom severity fluctuated. Follow-up MRI obtained 3 months postoperation revealed high signal intensity from C5 to T2, possibly indicating aggravated compressive myelopathy. Thus, in this case, decompressive surgery and steroid therapy were detrimental.Spinal extradural arachnoid cysts (SEACs) are rare and usually asymptomatic, and they usually do not require surgical treatment. If symptoms manifest, however, surgical treatment is required. A 25-year-old male patient complained of impotence upon admission. Magnetic resonance images (MRIs) of his lumbar spine showed a SEAC located longitudinally from the T11 to L3, which was accompanied by thecal sac compression. Verifying the location of the dural defect is crucial for minimizing surgical treatments. Cystography, myelography, and lumbar spine MRI were conducted to locate the leak in real-time; however, it was not found. Hence, the location of the cerebrospinal fluid leak was estimated based on cystography, computed tomography, myelography, and MRI findings. We suggest that the region with the earliest contrast-filling, as well as the middle and widest area of the cyst, may correspond to the location of the dural defect.Although spinal arachnoid cysts are relatively common findings observed incidentally in adults, they are much rarely reported in children. They are usually asymptomatic and are mainly located in the middle and lower thoracic regions. However, in rare circumstances, these cysts can cause mass effects that lead to neurologic symptoms. We report the rare case of a spinal extradural arachnoid cyst in a 12-year-old boy who showed signs and symptoms of cauda equina syndrome. Magnetic resonance imaging of the lumbar spine revealed a huge extradural arachnoid cyst extending from L2 to L5. Emergent laminectomy and repair of dural defect was performed after total resection of the extradural arachnoid cyst. There were no postoperative complications. Total recovery was achieved 6 months after surgery. Here, we report this rare case with a review of the literature.In treating the ventral pathology of spine, ligating the segmental vessels is sometimes necessary. This may cause spinal cord ischemia, and concerns of neurologic injury have been presented. However, spinal cord ischemic injury after sacrificing segmental vessels during spine surgery is very rare. Reports of this have been scarce in the literature and most of these complications occur after multi-level segmental vessel ligation. Here we report a case of a patient with postoperative anterior spinal artery syndrome, which occurred after ligating one level segmental vessels during spinal surgery for a T8 vertebral pathologic fracture. Despite its rarity, the risk of spinal cord ischemic injury after segmental vessel ligation is certainly present. Surgeons must keep in mind such risk, and surgery should be planned under a careful risk-benefit consideration.Traumatic retropharyngeal hematoma is a potentially life-threatening complication of cervical spine injury due to possible airway obstruction. Treatment by securing airway and subsequent conservative care is often adequate. However, a rapidly expanding large hematoma requires surgical evacuation. We present a case of 55-year-old man with a retropharyngeal hematoma secondary to cervical vascular injury without associated cervical fracture. The patient was successfully treated with endovascular arterial embolization and subsequent percutaneous drainage under fluoroscopic guidance without any sequelae.Cement-augmented fenestrated pedicle screw fixation is becoming more popular for osteoporotic patients. Although several reports have been published on leakage-related problems with bone cement, no cases of cardiac perforation after cement-augmented pedicle screw fixation have been reported. We present a case of cardiac perforation after cement-augmented fenestrated pedicle screw fixation. A 67-year-old female was admitted to our hospital with complaints of dyspnea and chest pain after lumbar surgery. She had been treated with L4-5 lumbar interbody fusion and percutaneous pedicle screw fixation with bone cement augmentation seven days earlier for degenerative spondylolisthesis. The right chest pain was observed a day after the surgery; she was treated conservatively but it did not improve for 7 days after surgery. Chest computed tomography (CT) revealed a hemothorax and a large sharp bone cement fragment that perforated the right atrium. Bone cement can be removed with thoracotomy surgery. We have to be aware of cement leakage through the normal venous drain system around the vertebral body.
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