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Background: Adult traumatic brachial plexus injuries (TBPIs) are life-altering events that can have detrimental effects on a patient's quality of life., Objective: To examine how social determinants of health (SDOH) disparities influence the risk of developing new psychosocial conditions after TBPIs in previously psychiatric-naïve patients., Methods: Between January 2010 and June 2019, a retrospective analysis was performed using PearlDiver's Mariner, an all-payer claims database, to create 3 cohorts: TBPI disparity cohort: patients with TBPI and presence of at least 1 SDOH disparity before injury, TBPI without disparity cohort: patients with TBPI and the absence of any SDOH disparity, and control cohort: patients without TBPIs., Results: The matched population analyzed in this study consisted of 1176 patients who were equally represented in the TBPI disparity cohort (n = 392, 33.33%), TBPI without disparity cohort (n = 392, 33.33%), and control cohort (n = 392, 33.33%). A total of 301 patients developed any psychosocial condition with 4 years of their injury. Patients in the TBPI disparity cohort had significantly higher rates of developing any psychosocial condition (31.12%, P < .0005), depression (22.70%, P = .0032), anxiety (18.62%, P = .0203), drug abuse (7.91%, P = .0060), and alcohol abuse (4.85%, P = .03499) when compared with the other cohorts. Furthermore, the disparity cohort carried a significantly increased risk of developing any psychosocial condition (hazard ratio 1.42, 95% CI 1.09-1.86). The rates of suicide attempt, post-traumatic stress disorder, and divorce did not significantly differ between groups., Conclusion: TBPI patients with SDOH disparities are at increased risk of developing new-onset psychosocial conditions, such as depression, anxiety, drug abuse, and alcohol abuse. Level of Evidence: Prognostic Level III., (Copyright © Congress of Neurological Surgeons 2023. All rights reserved.)

Background: Since 2007, the authors have performed the triceps-to-axillary nerve transfer using the medial triceps branch to reconstruct axillary nerve function in brachial plexus and isolated axillary nerve palsies., Methods: A retrospective chart review was undertaken of patients reconstructed with this transfer, recording patient and injury demographics and time to surgery. Preoperative and postoperative function was graded using the Medical Research Council scale and the Disabilities of the Arm, Shoulder, and Hand questionnaire., Results: Postoperatively, 31 patients (64.6 percent) reached Medical Research Council grade 3 or higher at final follow-up. The median Disabilities of the Arm, Shoulder, and Hand score was 59.9 (interquartile range, 38.8 to 70.5) preoperatively and 25.0 (interquartile range, 11.3 to 61.4) at final follow-up. Sixteen patients (33 percent) had isolated axillary nerve injury; the median Medical Research Council grade was 4.25 (interquartile range, 3 to 4.25), with 14 patients (87.6 percent) achieving grade 3 or higher. Thirty-two patients (77 percent) had brachial plexus-associated injury; median Medical Research Council grade was 3 (interquartile range, 2 to 3), with 17 patients (53.1 percent) achieving grade 3 or higher., Conclusion: Medial triceps nerve branch is a strong donor for triceps-to-axillary nerve transfer; however, injury factors may limit the motor recovery in this complex patient population, particularly in axillary nerve palsy associated with brachial plexus injury., Clinical Question/level of Evidence: Therapeutic, IV., Competing Interests: Disclosure:The authors have no conflicts of interest or financial disclosures to report., (Copyright © 2022 by the American Society of Plastic Surgeons.)

Objective: To investigate functional outcome from reconstructive surgery in adult traumatic brachial plexus injury (AT-BPI) with associated vascular lesions., Methods: A retrospective review was performed of 325 patients with AT-BPI who underwent reconstructive surgery between 2001 and 2012. Patients with (vascular group) and without (control group) vascular injuries were identified by review of medical documentation. Patient presentation, characteristics of nerve and associated lesions, and surgical management were evaluated to identify prognostic variables. Postoperative muscle strength, range of motion, and patient-reported disability scores were analyzed to determine long-term outcome., Results: Sixty-eight patients had a concomitant vascular injury. There were no significant differences in age or sex between the control and vascular groups. The vascular group was more likely to have pan-plexus lesions (P < 0.0001), with significantly more associated upper extremity injuries (P < 0.0001). The control group underwent more nerve transfers, whereas the vascular group underwent more nerve grafting (P = 0.003). Complete outcome data were obtained in 139 patients, which included 111 control (43% of all control subjects) and 28 vascular patients (41%). There was no significant difference in patient-reported disability scores between the 2 groups. However, 73% of control subjects had grade 3 or greater postoperative elbow flexion, whereas only 43% of vascular patients achieved this strength (P = 0.003). Control patients demonstrated a greater increase in strength of shoulder abduction as well (P = 0.004). Shoulder external rotation strength was grade 0 in most patients, with no difference between the 2 groups., Conclusions: Concomitant vascular injury leads to worse functional outcome after reconstructive surgery of traumatic brachial plexus injury., (Copyright © 2019 Elsevier Inc. All rights reserved.)

Adult traumatic brachial plexus injuries are devastating life-altering injuries occurring with increasing frequency. Evaluation includes a detailed physical examination and radiologic and electrodiagnostic studies. Critical concepts in surgical management include knowledge of injury patterns, timing of surgery, prioritization in restoration of function, and management of patient expectations. Options for treatment include neurolysis, nerve grafting, or nerve transfers and should be generally performed within 6 months of injury. The use of free functioning muscle transfers can improve function both in the acute and late setting. Modern patient-specific management can often permit consistent restoration of elbow flexion and shoulder stability with the potential of prehension of the hand. Understanding the basic concepts of management of this injury is essential for all orthopaedic surgeons who treat trauma patients.