Fibrolipomatous hamartoma of the median nerve: An unusual cause of carpal tunnel syndrome.

Fibrolipomatous hamartoma is a rare benign tumor-like condition that affects most commonly the median nerve. The diagnosis is usually confirmed through its typical appearance on magnetic resonance imaging (MRI) without the need for a nerve biopsy. There are divergent views regarding treatment of this entity, but open carpal tunnel release for nerve decompression currently constitutes the standard care for alleviation of compressive neuropathy of the median nerve.

True neurogenic thoracic outlet syndrome: late outcomes from a surgical series.

Background: True neurogenic thoracic outlet syndrome (TNTOS) is rare, and evaluation of surgical treatment is limited to a few studies in the literature. The purpose of this study is to present the results from a surgical series of 21 patients with TNTOS.

Methods: Retrospective analysis on 21 patients diagnosed with TNTOS who underwent surgery.

Sir William Thorburn and the first published report of the surgical repair of a brachial plexus injury.

This historical vignette presents some aspects of the life of the English surgeon Sir William Thorburn and details of the first published report of the surgical repair of a brachial plexus stretch injury in an adult.

Publication Trends of Nonobstetric Brachial Plexus Injury Research: A Bibliometric Analysis.

Objective: To evaluate publication trends in nonobstetric brachial plexus injury research.

Methods: In September 2020, Scopus was searched for articles on nonobstretric brachial plexus injury. Citation count, year of publication, country of corresponding author and its income category, destiny journal and its 5-year impact factor (IF), and research type were retrieved.

Vapor pressure deficit helps explain biogenic volatile organic compound fluxes from the forest floor and canopy of a temperate deciduous forest.

Biogenic volatile organic compounds (BVOCs) play critical roles in ecological and earth-system processes. Ecosystem BVOC models rarely include soil and litter fluxes and their accuracy is often challenged by BVOC dynamics during periods of rapid ecosystem change like spring leaf out. We measured BVOC concentrations within the air space of a mixed deciduous forest and used a hybrid Lagrangian/Eulerian canopy transport model to estimate BVOC flux from the forest floor, canopy, and whole ecosystem during spring.

The nerve to the levator scapulae muscle as donor in brachial plexus surgery: an anatomical study and case series.

Objective: Nerve transfers are commonly used in treating complete injuries of the brachial plexus, but donor nerves are limited and preferentially directed toward the recovery of elbow flexion and shoulder abduction. The aims of this study were to characterize the anatomical parameters for identifying the nerve to the levator scapulae muscle (LSN) in brachial plexus surgery, to evaluate the feasibility of transferring this branch to the suprascapular nerve (SSN) or lateral pectoral nerve (LPN), and to present the results from a surgical series.

Methods: Supra- and infraclavicular exposure of the brachial plexus was performed on 20 fresh human cadavers in order to measure different anatomical parameters for identification of the LSN.

Treatment of radiation-induced brachial plexopathy with omentoplasty.

Radiation-induced brachial plexus neuropathy (RIBPN) is a rare and delayed non-traumatic injury to the brachial plexus, which occurs following radiation therapy to the chest wall, neck, and/or axilla in previously treated patients with cancer. The incidence of RIBPN is more common in patients treated for carcinoma of the breast and Hodgkin lymphoma. With the improvement in radiation techniques, the incidence of injury to the brachial plexus following radiotherapy has dramatically reduced.

Functional outcome predictors after spinal accessory nerve to suprascapular nerve transfer for restoration of shoulder abduction in traumatic brachial plexus injuries in adults: the effect of time from injury to surgery.

Background: Shoulder abduction is crucial for daily activities, and its restoration is one of the surgical priorities. We evaluated the predictive factors of shoulder abduction functional outcome after spinal accessory nerve (SAN) to suprascapular nerve (SSN) transfer, with special emphasis on the effect of time from injury to the surgery, in the treatment of traumatic brachial plexus injuries.

Method: This cohort included adult patients who underwent SAN-to-SSN transfer with a preoperative Medical Research Council strength grade 0 and a follow-up of minimum 18 months.

Diagnostic accuracy of imaging studies for diagnosing root avulsions in post-traumatic upper brachial plexus traction injuries in adults.

Background: There is no consensus about which type of imaging study, computed tomography myelography (CTM) or magnetic resonance imaging (MRI), provides better information concerning root avulsion in adult brachial plexus injuries.

Methods: Patients with upper brachial plexus traumatic injuries underwent both CTM and MRI and surgical exploration. The imaging studies were analyzed by two independent radiologists and the data were compared with the intraoperative findings.

Surgical treatment of birth-related brachial plexus injuries: a historical review.

This historical review presents the relevant data about the evolution of the surgical treatment of neonatal brachial plexus palsy. Starting with the first clinical description by Smellie in 1754, we will present the initial enthusiasm for the surgery followed by a lack of interest that lasted many years, the resurgence of interest in operative management in the 1970s, and the consolidation in the 1980s of surgery as the standard indication in cases of neonatal brachial plexus palsy without a functional spontaneous recovery.

Long-term evaluation of hand function in children undergoing Oberlin and Oberlin-like procedures for reinnervation of the biceps muscle.

Purpose: Long-term evaluation of hand function in children who underwent transfer procedures to reinnervate the biceps muscle, using fascicles from the ulnar and median nerves as donors.

Methods: In the last follow-up evaluation, the children underwent a neurological examination, and their hand status was classified according to the Raimondi grading system for hand function. Two physical measurements, the child health assessment questionnaire (CHAQ) and the Sollerman hand function test, were applied to assess upper extremity function.

Restoration of shoulder external rotation by means of the infraspinatus muscle reinnervation with a radial nerve branch transfer.

Although reinnervation of the suprascapular nerve is frequently obtained through brachial plexus surgery, reestablishment of infraspinatus muscle function is rarely achieved. The viability of transfer of the radial nerve to the nerve branch to the infraspinatus muscle was determined anatomically, including histomorphometrical analysis on 30 adult cadavers. Eleven adult patients were then treated using the proposed nerve transfer.

Small Aneurysms Should Be Clipped?

Background: Cerebral aneurysm prevalence may vary from 0.4% to 10%. The decision to treat or not incidental aneurysms remains controversial, especially when the lesions are small (<5 mm).

Functional outcome of spinal accessory nerve transfer to the suprascapular nerve to restore shoulder function: Results in upper and complete traumatic brachial plexus palsy in adults.

Background: Shoulder stability, abduction and external rotation are vital for the performance of usual daily tasks.

Aims: To compare the functional outcomes in the shoulder following spinal accessory to suprascapular nerve transfer (SASNT).

Patients And Methods: Comparison of the outcome of adult patients with upper traumatic brachial plexus palsy undergoing SASNT with patients with complete palsy submitted to the same procedure.

Outcomes from primary surgical reconstruction of neonatal brachial plexus palsy in 104 children.

Purpose: The outcome from microsurgical reconstruction of neonatal brachial plexus palsy (NBPP) varies, and comparison between different series is difficult, given the differences in preoperative evaluation, surgical strategies, and outcome analysis. To evaluate our results, we reviewed a series of children who underwent surgical treatment in a period of 14 years.

Methods: We made a retrospective review of 104 cases in which microsurgical repair of the brachial plexus was performed.

Sir Sydney Sunderland and the Sunderland Society.

In this historical vignette the relevant aspects of the life of the exceptional neuroscientist Sir Sydney Sunderland and of the foundation and development of the Sunderland Society are presented. The relationship of Sir Sydney with the Society is also emphasized.

Conservative therapeutic management of carpal tunnel syndrome.

Carpal tunnel syndrome is the most prevalent nerve compression and can be clinically or surgically treated. In most cases, the first therapeutic alternative is conservative treatment but there is still much controversy regarding the most effective modality of this treatment. In this study, we critically evaluated the options of conservative treatment for carpal tunnel syndrome, aiming to guide the reader through the conventional options used in this therapy.

Good sensory recovery of the hand in brachial plexus surgery using the intercostobrachial nerve as the donor.

Objective: Restoration of the sensitivity to sensory stimuli in complete brachial plexus injury is very important. The objective of our study was to evaluate sensory recovery in brachial plexus surgery using the intercostobrachial nerve (ICBN) as the donor.

Methods: Eleven patients underwent sensory reconstruction using the ICBN as a donor to the lateral cord contribution to the median nerve, with a mean follow-up period of 41 months.

Elective amputation of the upper limb is an option in the treatment of traumatic injuries of the brachial plexus?

The treatment of complete post-traumatic brachial plexus palsy resulting in a flail shoulder and upper extremity remains a challenge to peripheral nerve surgeons. The option of upper limb amputation is controversial and scarcely discussed in the literature. We believe that elective amputation still has a role in the treatment of select cases.

Correlation between motor function recovery and daily living activity outcomes after brachial plexus surgery.

Objective: To establish the correlation between clinical evaluation of motor function recovery and daily living activities in 30 patients with upper traumatic brachial plexus injury submitted to surgery.

Methods: The score of the Disabilities of the Arm, Shoulder and Hand (DASH) questionnaire and the Louisiana State University Health Sciences Center (LSUHSC) scale were determined in 30 patients. Epidemiologic factors were also examined and correlations were determined.

The intercostobrachial nerve as a sensory donor for hand reinnervation in brachial plexus reconstruction is a feasible technique and may be useful for restoring sensation.

Objective: Few donors are available for restoration of sensibility in patients with complete brachial plexus injuries. The objective of our study was to evaluate the anatomical feasibility of using the intercostobrachial nerve (ICBN) as an axon donor to the lateral cord contribution to the median nerve (LCMN).

Methods: Thirty cadavers were dissected.