Clavicle lengthening, a novel operation technique to reduce pain in brachial plexus birth injury patients.

BACKGROUND: Brachial plexus birth injury (BPBI) can lead to an imbalance of shoulder musculature that can lead to glenohumeral contractures, and joint and osseous deformities. Glenoid hypoplasia, lengthening of coracoid and acromion, protraction, lateral rotation and elevation of the scapula, and shortening of the clavicle can be observed. As a consequence, the trapezius, levator scapulae, rhomboid, and supraspinatus muscles are overloaded in daily activities causing pain, which can be difficult to treat conservatively. It is hypothesized that operative lengthening of the clavicle may lead to a more anatomic position of the scapula and periscapular muscles, which, as a consequence, may lead to less overloading pain. This study presents the results of this new technique in patients with BPBI. MATERIALS AND METHODS: Seven patients (median age 20 years) were included and underwent a lengthening osteotomy of the clavicle at the affective side. Preoperatively, the osseous deformities were confirmed with a computed tomography scan. Patient-reported outcome measures, Disabilities of Arm, Shoulder and Hand score, and Mallet score were evaluated pre- and postoperatively. RESULTS: After a median of 42 (interquartile range [IQR]: 8.0) months' follow-up, all patients were satisfied with the result. The median numeric rating scale for satisfaction was 8.0 (IQR: 2). Pain decreased from a median numeric rating scale of 7.0 (IQR: 2) preoperatively to 2.0 (IQR: 3) at the final follow-up. The median Mallet score was 14.5 (IQR: 1) preoperatively and 14 (IQR: 0) at the final follow-up. The median Disabilities of Arm, Shoulder and Hand score was 36.7 (IQR: 24.1) at the final follow-up. All patients returned to their normal work without changes in working conditions. CONCLUSION: Short-term follow-up shows that in patients with BPBI with a short clavicle at the affected side and malposition of the scapula, a lengthening osteotomy of the clavicle is a safe and promising technique to reduce pain based on overloading, without deterioration of shoulder function.

Improved long-term functional outcome after a latissimus dorsi transfer with or without subscapularis muscle lengthening or release.

A brachial plexus birth injury (BPBI) can lead to a limited shoulder function, especially abduction and external rotation. One of the treatment options to restore those shoulder functions is a latissimus dorsi transfer (LDT). The aim of this study is to analyze long-term functional outcome after a single LDT and compare these results with LDT combined with subscapularis muscle lengthening (SSL) or subscapularis muscle release (SSR). This cohort study included 39 patients (≤12 years old) with one-sided BPBI. All patients had an inter- nal rotation- and adduction contracture without glenohumeral joint deformity. A LDT was performed with or without SSL or SSR, resulting in 3 patient study groups. Demographic data and pre- and post- operative Mallet scores were collected and analysed for each group. The median age was 4.0 years (IQR 3.1) and there were no differences in patient demographics. In all patients surgery improved external rotation and overall shoulder function, at 9.8 years follow-up. Also, the total Mallet score increased significantly with 1.7 (p=0.001) in our (entire) study cohort. A LDT, with a SSL or SSR in case of an intra-operative internal contracture, improves shoulder function and preserves external rotation in patients (≤12 years old) with BPBI, at a follow up of 9.8 years.

The humeral suspension technique: a novel operation for deltoid paralysis.

Isolated deltoid paralysis is a rare pathology that can occur after axillary nerve injury due to shoulder trauma or infection. This condition leads to loss of deltoid function that can cause glenohumeral instability and inferior subluxation, resulting in rotator cuff muscle fatigue and pain. To establish dynamic glenohumeral stability, a novel technique was invented. Humeral suspension is achieved using a double button implant with non-resorbable high strength cords between the acromion and humeral head. This novel technique was used in two patients with isolated deltoid paralysis due to axillary nerve injury. The results indicate that the humeral suspension technique is a method that supports centralizing the humeral head and simultaneously dynamically stabilizes the glenohumeral joint. This approach yielded high patient satisfaction and reduced pain. Glenohumeral alignment was improved and remained intact 5 years postoperative. The humeral suspension technique is a promising surgical method for subluxated glenohumeral joint instability due to isolated deltoid paralysis.

Surgical intervention for upper extremity nerve compression related to arteriovenous hemodialysis accesses.

OBJECTIVE: Chronic renal failure patients with arteriovenous hemodialysis access may exhibit pain and neurological complaints due to local nerve compression by the access conduit vessels of autogenous arteriovenous fistulas or the prosthesis of arteriovenous grafts. In this study, we have examined the results of surgical intervention for vascular access-related nerve compression in the upper extremity. METHODS: A single center retrospective study was performed of all patients referred for persistent pain and neurological complaints after vascular access surgery for hemodialysis. There were four brachial-cephalic, three brachial-basilic upper arm arteriovenous fistulas, and three prosthetic arteriovenous grafts. All patients had pain and sensory deficits in a distinct nerve territory (median nerve: 6; median + ulnar nerve: 1; medial cutaneous nerve: 1), and two patients had additional motor deficits (median nerve). RESULTS: A total of 10 patients (mean age: 59 years; range: 25-73 years; 2 men; 4 diabetics) were treated by surgical nerve release alone (2 patients) or in combination with access revision (8 patients). Mean follow-up was 23 months (range: 8-46 months). Direct complete relief of symptoms was achieved in six patients. Three patients had minor complaints, and one patient had a reoperation with good success. CONCLUSION: Vascular access-related nerve compression is an uncommon cause for pain, sensory and motor deficits after vascular access surgery. Surgical nerve release and access revision have good clinical outcome with relief of symptoms and maintenance of the access site in the majority of patients.