Prevalence of rotator cuff tears in adults with traumatic brachial plexus injuries

Injury and Biological Factors Impact Shoulder Function following Autogenous Grafting of Spinal Nerves for Pan-Brachial Plexus Reconstruction

BACKGROUND

Shoulder function after spinal nerve grafting in pan-brachial plexus injuries (pan-BPI) is not well described. The authors evaluated shoulder abduction (ABD) and external rotation (ER) after spinal nerve grafting to the suprascapular nerve, axillary nerve, or posterior division of the upper trunk and determined patient characteristics, injury severity and characteristics, and nerve graft factors that influenced outcomes.

METHODS

A total of 362 patients undergoing pan-BPI reconstruction and spinal nerve grafting for shoulder reanimation in a single institution between 2001 and 2018 were reviewed. Patient demographics, Injury Severity Score (ISS), graft characteristics, strength, range of motion for shoulder ABD and ER, and patient-reported outcomes were recorded. Patients were divided into 3 groups based on recovery of shoulder function: no return, ABD only, and ABD and ER.

RESULTS

A total of 110 patients underwent spinal nerve grafting, with 41 meeting inclusion criteria. Seventeen (41.5%) had no return of shoulder function, 14 (34.1%) had ABD alone, and 10 (24.4%) had ABD and ER. Patients with recovery of both ABD and ER were significantly younger (18.6 ± 5.56 years), had lower body mass index (22.4 ± 4.0), and had a lower ISS (10.5 ± 6.24; P = 0.003). Multivariable analysis found that with increasing age (OR, 0.786; 95% CI, 0.576, 0.941) and ISS (OR, 0.820; 95% CI, 0.606, 0.979), odds for return of ABD and ER decreased significantly.

CONCLUSIONS

In pan-BPI, 24.4% of patients demonstrated return of both ABD and ER after spinal nerve grafting to suprascapular nerve and either axillary nerve or posterior division of the upper trunk. Age, body mass index, and ISS were associated with poorer recovery of shoulder function. Careful patient selection and consideration of age, body mass index, and ISS may improve outcomes of spinal nerve grafting for shoulder reanimation.

CLINICAL QUESTION/LEVEL OF EVIDENCE

Risk, III.

Association of Preoperative Patient Resilience With Postoperative Patient-Reported Outcomes and Sleep Quality Following Arthroscopic Rotator Cuff Repair: A Systematic Review

Recent studies have shown that low preoperative resilience may lead to inferior outcomes following arthroscopic rotator cuff repair. Therefore, the purpose of this systematic review is to evaluate whether preoperative patient resilience is associated with outcome measures, including patient-reported outcome measurements (PROMs) and sleep quality, following arthroscopic rotator cuff repair. To perform the review, a literature search was conducted according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines using the PubMed and Embase databases to gather studies related to the influence of preoperative resilience on postoperative outcomes of rotator cuff repair. Methodological quality and risk of bias were assessed using the Methodological Index for Non-randomized Studies (MINORS). Seven studies with 584 patients were included. Of 36 total reported postoperative outcomes, including PROMs and sleep quality, 14 had a significant positive correlation with higher preoperative resilience. One study reported that higher resilience was significantly correlated with worse sleep quality at a two-week follow-up but not at further follow-ups of up to 24 weeks. Significant differences in outcomes between patients with varying levels of resilience were assessed in five studies, all of which found that patients with higher resilience had significantly better outcomes or no significant differences in outcomes between patients with varying levels of preoperative resilience. In no study was it reported that patients with low resilience had better outcomes. Overall, approximately half of all reported postoperative outcome data was found to be significantly associated with preoperative resilience. Therefore, clinicians should preemptively identify those with low resilience and administer psychological interventions to limit inferior outcomes following arthroscopic rotator cuff repair.

A multidisciplinary approach to the management of brachial plexus injuries: experience from the Mayo Clinic over 100 years

A multidisciplinary brachial plexus clinic has been a relatively new concept, offering different surgical speciality perspectives on the treatment of brachial plexus injuries. The resulting collaborative effort has proven to be greater than the sum of its parts. In this review, the history, philosophy of care, development/implementation and impact of a creation of a multidisciplinary brachial plexus team at the Mayo Clinic are detailed.

Team Approach: Management of Brachial Plexus Injuries

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Traumatic brachial plexus injuries are relatively rare but potentially devastating injuries with substantial functional, psychological, and economic consequences.

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Prompt referral (ideally within 6 weeks of injury) to a center with a team of experts experienced in the diagnosis and management of these injuries is helpful to achieving optimal outcomes.

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Preoperative and intraoperative decision-making to diagnose and plan reconstructive procedures is complex and must take into account a number of factors, including the time from injury, concomitant injuries, preservation of cervical nerve roots, and the availability of intraplexal and extraplexal donor nerves for nerve transfer.

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A team approach is essential to ensure accurate localization of the pathology before surgery and to maximize rehabilitation after surgery, necessitating close contact between the surgical team, physiatrists, radiologists, and therapists.

Can a simple fall cause a rotator cuff tear? Literature review and biomechanical considerations

PURPOSE

A simple fall on the shoulder is often referred to as minor trauma that cannot cause a tendon tear but at best reveal a pre-existing rotator cuff pathology. We wanted to know whether this statement was true. The purpose of our study was therefore to summarize the causes of acute rotator cuff tears reported in the literature and provide a biomechanical explanation for tendon tears diagnosed after a fall.

METHOD

We searched PubMed and included studies reporting rotator cuff tears occurring due to a trauma. The number of cases, the tendons involved, the age of the patients, and the nature of trauma were summarized. In addition, we noted any information provided by the authors on the pathogenesis of acute tendon ruptures.

RESULTS

Sixty-seven articles with a total of 4061 traumatic rotator cuff tears met the inclusion criteria. A simple fall was the most common cause (725 cases) and the supraspinatus tendon was most frequently affected. The postulated pathomechanism is a sudden stretch of the tendon-muscle unit while contracting (eccentric loading).

CONCLUSION

A simple fall can cause an acute rotator cuff tear and fall-related tears are not restricted to young individuals. They can affect patients of any age. The stresses occurring within the rotator cuff during an attempt to cushion a fall may locally exceed the tensile strength of the tendon fibers and cause a partial or full-thickness tear.

Restoration of Shoulder Function

Restoration of shoulder function in patients with brachial plexus injury can be challenging. Initial reported efforts were focused on stabilizing the shoulder, improving inferior subluxation and restoring abduction and flexion of the joint. Recent advancements and improved understanding of coordinated shoulder motion and the biomechanical properties of the muscles around the shoulder applicable to tendon transfer have expanded available surgical options to improve shoulder function, specifically external rotation. Despite the advances in reconstructive options, brachial plexus injury remains a serious problem that requires complex surgical solutions, prolonged recovery, and acceptance of functional loss.