Sustainable Improvement of Anterocollis-type Cervical Dystonia with a Hanger Reflex Device: A Case Report.

The hanger reflex is an automatic head rotation movement. When individuals wear a wire clothes hanger on the head to compress the frontotemporal region, the head spontaneously rotates toward the compressed side. The device to induce the hanger reflex was first developed for treating rotation-type cervical dystonia, followed by the development of a device for anterocollis-type cervical dystonia.

Focused Ultrasound Pallidothalamic Tractotomy in Cervical Dystonia: A Pilot Study.

Background: No clinical trials have been reported on the use of focused ultrasound (FUS) for treating cervical dystonia.

Objective: We aimed to confirm the efficacy and safety of FUS pallidothalamic tractotomy for cervical dystonia.

Methods: This was a prospective, open-label, non-controlled pilot study.

A Simple Procedure of Epidural Electrode Lead Replacement through a Tissue Sheath in Spinal Cord Stimulation.

Spinal cord stimulation (SCS) is widely performed to treat several types of intractable chronic pain. To maintain lasting SCS, epidural electrode leads must be replaced sometimes due to problems like lead breakage. However, in lead replacement, guiding the new lead to the original position may be difficult because granulation tissue sheath forms around the lead.

Long-term follow-up of task-specific tremor after thalamotomy: a retrospective observational study.

Objective: This study aimed to report the long-term results of thalamotomy in 23 patients with task-specific tremor.

Methods: Data of 23 patients with task-specific tremor who underwent ventralis intermedius nucleus and posterior part of ventro-oral nucleus thalamotomy at the Tokyo Women's Medical University Hospital between 2010 and 2022 were retrospectively analyzed. To evaluate neurological conditions, the severity of task-specific tremor was divided into 0 (no tremor), 1 (slightly tremulous), 2 (moderately tremulous), 3 (accomplishing tasks with great difficulty), and 4 (unable to complete tasks).

Jaw Claudication Caused by Atherothrombotic External Carotid Artery Occlusion: A Case Report.

Jaw claudication is a common symptom of giant cell arteritis (GCA), although atherothrombotic external carotid artery (ECA) occlusion is also known to cause jaw claudication. The patient was a 75-year-old male who experienced severe right jaw pain while chewing solid food. Magnetic resonance (MR) angiography showed right ECA occlusion.

Pistol Shooting Dystonia Treated with Thalamotomy.

Background: Neurosurgical treatment for pistol shooting dystonia has not been studied.

Case Report: The patient was a 41-year-old woman who participated in the Olympic Games four times as a shooting player. Five months after the final Tokyo Olympic trials, she developed dystonia of the right index finger when shooting.

Gamma Knife Thalamotomy for Essential Tremor: A Retrospective Analysis.

Background: Gamma knife (GK) thalamotomy has been used as a treatment option for essential tremor (ET). Numerous studies on GK use in ET treatment have reported more varied responses and complication rates.

Methods: Data from 27 patients with ET who underwent GK thalamotomy were retrospectively analyzed.

Bilateral Radiofrequency Ventral Intermediate Thalamotomy for Essential Tremor.

Introduction: With the advent of MR-guided focused ultrasound, the importance of the efficacy and safety of bilateral ventral intermediate (Vim) thalamotomy for essential tremor (ET) has increased. However, reports on bilateral Vim thalamotomy for ET remain scarce.

Methods: To review the results and complications of bilateral Vim thalamotomy for the treatment of ET in the upper extremities, we retrospectively analyzed the patients with ET who underwent bilateral Vim thalamotomy with radiofrequency (RF) thermal coagulation.

[Development of Medical Materials and Infection].

Surgery has the possibility to cause infections. Surgical site infection(SSI)is a common complication of various surgical procedures. On the other hand, allogeneic tissue-derived material-induced infections, such as transfusion-related hepatitis and Creutzfeldt-Jakob disease, are rare but occur.

An Experience With an Exoscope System (ORBEYE) for Surgery for Tarsal Tunnel Syndrome: A Case Report.

Surgery for peripheral entrapment neuropathy aims to decompress the affected nerve and optimize the visualization of anatomical details during surgery. This paper describes our experience using the ORBEYE exoscope (Olympus) during surgery for tarsal tunnel syndrome (TTS). The patient was a 70-year-old male with complaints of bilateral pain and numbness on the plantar surface of the bilateral soles and medial halves of both lower limbs.

Efficacy and Safety of Zolpidem for Focal Dystonia After Neurosurgical Treatments: A Retrospective Cohort Study.

Although there are several reports of the significant efficacy of zolpidem for treating dystonia, zolpidem is still considered an anecdotal treatment. Here, we evaluated the efficacy and safety of zolpidem for treating residual dystonia in patients who previously received various neurosurgical treatments majorly including deep brain stimulation and radiofrequency ablation. We retrospectively reviewed medical records from January 2021 to September 2021 to identify patients with dystonia who had been prescribed zolpidem after undergoing neurosurgery.

Unilateral pallidothalamic tractotomy at Forel's field H1 for cervical dystonia.

Background: Neurosurgical ablation of Forel's field H1 for cervical dystonia, which is currently abandoned, was formerly used in the 1960s-1970s. Regardless of the lack of neuroimaging modalities and objective evaluation scales, the reported efficacy was significant. Although recent studies have reappraised the ablation of the pallidothalamic tract at Forel's field H1 for Parkinson's disease, the efficacy for cervical dystonia has not been investigated well.

Intraparenchymal Symptomatic Cyst Formation Around the Deep Cerebellar Stimulation Electrode.

Intraparenchymal cyst formation around a deep brain stimulation electrode is a rare complication. This is the first report of intraparenchymal cyst formation along a deep cerebellar stimulation electrode in the posterior cranial fossa. The patient was a 27-year-old man with DYT-1 early-onset isolated dystonia who received bilateral deep cerebellar stimulation.

Deep Brain Stimulation of the Forel's Field for Dystonia: Preliminary Results.

The field of Forel (FF) is a subthalamic area through which the pallidothalamic tracts originating from the globus pallidus internus (GPi) traverse. The FF was used as a stereotactic surgical target (ablation and stimulation) to treat cervical dystonia in the 1960s and 1970s. Although recent studies have reappraised the ablation and stimulation of the pallidothalamic tract at FF for Parkinson's disease, the efficacy of deep brain stimulation of FF (FF-DBS) for dystonia has not been well investigated.

[Functional Neurosurgery for Anorexia Nervosa].

Anorexia nervosa (AN) is a serious psychiatric disorder characterized by disturbances in body- and self-perception and excessive weight loss. AN is sometimes refractory to conventional treatments such as medication and psychological therapy. Therefore, the neurosurgery for psychiatric disorders (NPD) has been studied.

Case Report: Deep Cerebellar Stimulation for Tremor and Dystonia.

The cerebellum plays an important role in the pathogenesis and pathophysiology of movement disorders, including tremor and dystonia. To date, there have been few reports on deep cerebellar stimulation. The patient was a 35-year-old previously healthy man with no history of movement disorders.

Comorbid seizure reduction after pallidothalamic tractotomy for movement disorders: Revival of Jinnai's Forel-H-tomy.

Forel-H-tomy for intractable epilepsy was introduced by Dennosuke Jinnai in the 1960s. Recently, Forel-H-tomy was renamed to "pallidothalamic tractotomy" and revived for the treatment of Parkinson's disease and dystonia. Two of our patients with movement disorders and comorbid epilepsy experienced significant seizure reduction after pallidothalamic tractotomy, demonstrating the efficacy of this method.

Successful Treatment of Auricular Dystonia by Unilateral Pallidothalamic Tractotomy.

Background: Ear movement disorders are rarely reported. Although some patients may respond to botulinum toxin injections, reports on surgical treatment options remain limited.

Case Report: A 57-year-old woman was diagnosed with auricular dystonia, which was refractory to botulinum toxin injections.

Unilateral pallidotomy in the treatment of cervical dystonia: a retrospective observational study.

Objective: The objective of this study was to assess the efficacy of unilateral pallidotomy in patients with asymmetrical cervical dystonia.

Methods: This study retrospectively included 25 consecutive patients with asymmetrical cervical dystonia refractory to botulinum toxin injections, who underwent unilateral pallidotomy between January 2015 and April 2017. Toronto Western Spasmodic Torticollis Rating Scale (TWSTRS) scores were evaluated preoperatively and 1 week, 3 months, and 6 months postoperatively.

Lumbar Ganglioneuroma from the Paravertebral Body Presenting in Continuity Between Intradural and Extradural Spaces.

Background: Ganglioneuroma is a well-differentiated benign tumor that develops from the ganglion cells of the posterior mediastinum, retroperitoneum, cervical spine, and adrenal glands. The paravertebral body, in which the sympathetic trunk exists, is a common tumor site, and tumor sometimes invades the spinal canal through the intervertebral foramen. There have been no reports regarding tumors with intradural and extradural continuity.

Staged bilateral pallidotomy for dystonic camptocormia: case report.

Camptocormia is a rare, involuntary movement disorder, presenting as truncal flexion while standing or walking, and is mainly observed as a feature of Parkinson's disease (PD) and primary dystonia. Deep brain stimulation (DBS) of the globus pallidus internus is effective for refractory camptocormia observed with PD or dystonia. However, the effectiveness of pallidotomy for camptocormia has not been investigated.