1,289 results match your criteria Suprascapular Neuropathy
Med Ultrason 2018 Dec;20(4):461-466
Sakarya University Faculty of Medicine.
Aim: Pulsed radiofrequency (PRF) therapy has become increasingly popular in the treatment of chronic shoulder pain due to its long duration of action and non-destructive method. The aim of the study was to reveal the effects of PRF therapy of the suprascapular nerve (SSN) under ultrasound guidance (UG) in patients with chronic shoulder pain on both shoulder pain and function.
Material And Methods: This study included 74 patients diagnosed with at least one of the following: adhesive capsulitis, rotator cuff syndrome and impingement syndrome of shoulder. Read More
J Clin Med 2018 Nov 27;7(12). Epub 2018 Nov 27.
Department of Angiology, Medical University of Lodz, Żeligowskiego 7/9, 90-752 Łódź, Poland.
Background: Sonographic evaluation of the suprascapular notch (SSN) region is clinically important, because it is the most common location for performing suprascapular nerve block. The aim of the study was to describe the morphology of the SSN region based on ultrasound examination and in accordance with the patients' body mass index (BMI).
Material And Methods: The SSN region was sonographically examined in 120 healthy volunteers according to our new four-step protocol. Read More
Acta Ortop Bras 2018 ;26(5):332-334
Irmandade da Santa Casa de Misericórdia de São Paulo, Departament of Orthopaedics and Traumatology, São Paulo, SP, Brazil.
Objective: Nerve transfers are an alternative in the reconstruction of traumatic brachial plexus injuries. In this study, we report the results of branchial plexus reconstruction using accessory to suprascapular nerve transfer.
Methods: Thirty-three patients with traumatic brachial plexus injuries underwent surgical reconstruction with accessory to suprascapular nerve transfers. Read More
J Orthop Res 2018 Nov 20. Epub 2018 Nov 20.
Wallace H. Coulter Department of Biomedical Engineering.
The etiology of joint tissue degeneration following rotator cuff tear remains unclear. Thus, the purpose of this study was to understand the timeline of protease activity in the soft tissues of the shoulder (tendon, muscle, and cartilage) that may lead to down-stream degeneration following rotator cuff tear. A well-established rat model involving suprascapular nerve denervation and supraspinatus/infraspinatus tendon transection was employed. Read More
J Hand Surg Asian Pac Vol 2018 Dec;23(4):496-500
† Khoo Teck Puat Hospital, Acute and Emergency Care Center, Singapore.
Background: To report the results of restoring the elbow flexion and extension in patients with total brachial root avulsion injuries by simultaneous transfer of the phrenic nerve to the nerve to the biceps and three intercostal nerves to the nerve of the long head of the triceps.
Methods: Ten patients with total brachial root avulsion injuries underwent the spinal accessory nerve transfer to the suprascapular nerve for shoulder reconstruction. Simultaneous transfer of the phrenic nerve to the nerve to the biceps via the sural nerve graft and three intercostal nerves to the nerve of the long head of the triceps was done for restoration of the elbow flexion and extension. Read More
Front Neurol 2018 23;9:902. Epub 2018 Oct 23.
Department of Physical and Rehabilitation Medicine, Hacettepe University Medical School, Ankara, Turkey.
As changes in nerves' shape and size are common ultrasonographic findings of entrapment neuropathy, measurement of the nerve cross-sectional area (CSA) becomes the mostly used indicator to differentiate normality from pathology. Recently, more US research has been conducted to measure the shape of the suprascapular notch and the diameter of the suprascapular nerve. Because the suprascapular nerve is paramount for various shoulder disorders, the present study aims to establish normal values of suprascapular nerve sizes at different levels as well as to investigate potential influence of participants' characteristics on the CSA measurements. Read More
J Anat 2019 Jan 31;234(1):120-131. Epub 2018 Oct 31.
Facultad de Medicina Veterinaria y Zootecnia, Departamento de Sanidad Animal, Universidad del Tolima, Ibagué, Colombia.
The white-footed tamarin (Saguinus leucopus) is an endangered endemic primate of Colombia, mainly due to the deforestation of its habitat and illegal trade, which generates a high incidence of these animals in wildlife care centres. Musculoskeletal system disorders in S. leucopus are one of the most common diseases and therefore the aim of this study was to contribute to the morphologic studies with a morphometric, anatomic and radiographic description of the scapula in this species to provide a basis for medical interventions, surgical approaches, radiologic diagnoses and comparative functions of this bone. Read More
Neurosurgery 2018 Mar 14. Epub 2018 Mar 14.
Department of Neurological Surgery, Washington University School of Medicine, Saint Louis, Missouri.
Background: Restoration of shoulder function is an important treatment goal in upper brachial plexus injury (UBPI). Combined dual motor nerve transfer (CDNT) of spinal accessory to suprascapular and radial to axillary nerves demonstrates good functional recovery with minimal risk of perioperative complications.
Objective: To evaluate the cost-effectiveness of CDNT vs alternative operative and nonoperative treatments for UBPI. Read More
Clin Anat 2018 Oct 26. Epub 2018 Oct 26.
Mayo Clinic Department of Orthopedic Surgery, Rochester, Minnesota, USA.
Introduction: Restoration of shoulder lateral rotation remains a significant challenge following brachial plexus injury. Transfer of the accessory nerve to suprascapular nerve (SSN) has been widely performed, although with generally poor outcomes for lateral rotation. A recent report suggested a selective infraspinatus reinnervation technique using a radial nerve branch for SSN transfer. Read More
J Pain Res 2018 11;11:2311-2322. Epub 2018 Oct 11.
Department of Physical and Rehabilitation Medicine, Hacettepe University Medical School, Ankara, Turkey.
Shoulder pain is a common musculoskeletal disorder of variable etiology, ranging from rotator cuff pathology to peripheral nerve entrapment. Advances in ultrasound (US) technology have allowed static and dynamic evaluation of shoulder problems and most importantly, offer real-time, radiation-free guidance for interventions. The present review aims to describe shoulder anatomy in detail using information from cadaveric models and to illustrate US-guided techniques using clearly labeled figures and videos. Read More
Acta Anaesthesiol Scand 2018 Oct 18. Epub 2018 Oct 18.
Department of Anaesthesiology, University Hospital of North Norway, Acute and Critical Care Research Group, Tromsø, Norway.
Background: We recently showed that the novel combination of a superficial cervical plexus block, a suprascapular nerve block, and the lateral sagittal infraclavicular brachial plexus block (LSIB) provides an alternative anaesthetic method for arthroscopic shoulder surgery. In this study, we hypothesised that the LSIB dose for this shoulder block could be significantly reduced by injecting only towards the shoulder relevant posterior and lateral cords. Our aim was to determine the minimum effective volume in 50% of the patients (MEV ) and to estimate the MEV when using ropivacaine 7. Read More
Eur J Orthop Surg Traumatol 2018 Oct 15. Epub 2018 Oct 15.
Department of Orthopedics, Faculty of Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand.
Background: Variations of morphology of the glenoid cavity have been previously reported. These influence the surgical reconstruction or arthroplasty of the shoulder. This study aims to study the variation of the shape of suprascapular notch, shape of glenoid cavity, dimensions of both the scapular and the glenoid cavity, and predict the glenoid dimensions from the scapular dimension parameters. Read More
Muscle Nerve 2018 Oct 5. Epub 2018 Oct 5.
Department of Orthopedic Surgery, Hospital for Special Surgery, New York, New York, USA.
Introduction: The purpose of this study was to determine whether surgical arthroscopic decompression or ultrasound-guided aspiration of a paralabral cyst would result in suprascapular nerve recovery from axonal regeneration based on electrodiagnostic testing.
Methods: Nine patients with preoperative electromyography (EMG) evidence of suprascapular neuropathy due to paralabral cysts at the suprascapular or spinoglenoid notch were prospectively studied. Eight patients underwent arthroscopic surgical decompression, and 1 patient underwent ultrasound-guided aspiration. Read More
Medicine (Baltimore) 2018 Oct;97(40):e12515
Department of Rehabilitation Medicine, Hanyang University College of Medicine, Seoul, Republic of Korea.
Rationale: Scapular winging is caused by neuromuscular dysfunction of shoulder stabilizer muscles. Clinically, a winged scapula can be easily diagnosed by typical physical findings. We report a case of atypical winged scapula caused by dorsal scapular neuropathy combined with suprascapular neuropathy, which has rarely been reported. Read More
J Med Ultrasound 2018 Jul-Sep;26(3):166-167. Epub 2018 May 7.
Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, Taiwan.
Arthrosc Tech 2018 Sep 27;7(9):e963-e967. Epub 2018 Aug 27.
Department of Orthopaedics, King Chulalongkorn Memorial Hospital, Bangkok, Thailand.
A SLAP lesion can be found with a concomitant spinoglenoid notch cyst. The cyst can cause suprascapular nerve compression, resulting in shoulder pain and weakness of external rotation. Their management varies from conservative treatment to operative treatment. Read More
Ann Anat 2019 Jan 21;221:173-178. Epub 2018 Sep 21.
National Key Discipline of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510000, China; Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangzhou, 510000, China; Southern Medical University Technology Ltd. Shunde Science Park, Guangzhou, 510000, China. Electronic address:
Background: The variable of the suprascapular notch (SSN) is a common cause in suprascapular nerve (SN) entrapment. Hence, knowledge of SSN variations may be predictive valuable for the predisposition to compression of SN. The aim of this study was to propose the classification of SSN in Chinese population and took this complex morphology into account. Read More
Int J Paleopathol 2018 Sep 20;24:19-24. Epub 2018 Sep 20.
Science World British Columbia, BC V6A 3Z7, Canada.
While intraosseous cysts have been described in the paleopathological literature, it is rare to find reports concerning effects of soft tissue cysts, although they are relatively common in clinical contexts. Here we present plausible evidence of an extraosseous paralabral cyst, seen in an adult scapula from a Late Intermediate period commingled tomb (ca. AD 1200) at the northern highland site of Marcajirca, Ancash, Peru. Read More
Infect Genet Evol 2018 Dec 17;66:192-194. Epub 2018 Sep 17.
Department of Veterinary Biosciences, Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, Victoria 3010, Australia. Electronic address:
This study demonstrates the utility of a PCR-based DNA sequencing approach to make a specific diagnosis of onchocerciasis in a returned traveller. Although a clinical diagnosis was not possible, the surgical excision of a suprascapular nodule from this patient, combined with an histological examination of this nodule and PCR-based sequencing of DNA from a nematode from this lesion solved the case. The analysis of DNA sequence data confirmed the presence of Onchocerca volvulus infection, supporting an effective treatment-clinical management strategy for the patient. Read More
Arthroscopy 2018 Oct 6;34(10):2757-2762. Epub 2018 Sep 6.
Department of Orthopaedics, University of Maryland School of Medicine, Baltimore, Maryland, U.S.A.. Electronic address:
Purpose: To compare a curved drill guide with a straight guide for suture anchor placement into the posterosuperior glenoid from an anterolateral portal with respect to glenoid perforation, drill contact with the suprascapular nerve, and maximum load.
Methods: Ten bilateral pairs of fresh human cadaveric shoulders were randomized to the curved technique on 1 side and the straight technique on the contralateral side. An anterolateral trans-rotator cuff portal was used for placement of anchors at the posterior (11 o'clock right shoulder) and far posterior (10 o'clock right shoulder) positions on the glenoid with a 24-mm drill stop, and the drill tip was marked with ink. Read More
Arthroscopy 2018 Sep;34(9):2558-2559
A growing body of evidence has demonstrated that repetitive overhead athletes with shoulder pathology often have associated infraspinatus atrophy and suprascapular neuropathy. Although decompression of the suprascapular nerve has not been shown to clearly impact outcomes in the general population, release of the nerve in overhead athletes with documented evidence of impingement may improve outcomes in this high-demand population. Read More
World Neurosurg 2018 Dec 27;120:e651-e659. Epub 2018 Aug 27.
Department of Neurosurgery, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, India. Electronic address:
Background: The most commonly performed nerve transfers in upper trunk (UT) or partial brachial plexus injuries (BPIs) include the spinal accessory nerve to suprascapular nerve, Oberlin, and, lately, radial nerve (RN) (branch to triceps) to axillary nerve (AN) transfers. Routinely, the former 3 procedures are performed through an anterior approach (supraclavicular plus infraclavicular), while the triceps branch of the RN-AN transfer has been performed through a posterior approach with the patient in either the prone or semilateral position, which requires a separate incision in the posterior arm. The aim of the present study was to report the outcomes for 4 cases of quadruple nerve transfers performed for UT BPI using an all-anterior approach. Read More
J Clin Anesth 2018 Dec 3;51:38-39. Epub 2018 Aug 3.
Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, 1800 Orleans Street, Baltimore, MD, USA. Electronic address:
J Neurosurg Spine 2018 Aug 3:1-9. Epub 2018 Aug 3.
Department of Hand Surgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China.
OBJECTIVE Contralateral C7 (CC7) nerve root has been used as a donor nerve for targeted neurotization in the treatment of total brachial plexus palsy (TBPP). The authors aimed to study the contribution of C7 to the innervation of specific upper-limb muscles and to explore the utility of C7 nerve root as a recipient nerve in the management of TBPP. METHODS This was a 2-part investigation. Read More
Muscle Nerve 2018 Aug 2. Epub 2018 Aug 2.
Department of Orthopedics, Balgrist University Hospital, University of Zurich, Zurich, Switzerland.
Introduction: We evaluated the contribution of denervation-related molecular processes to rotator cuff muscle degeneration after tendon release.
Methods: We assessed the levels of myogenic (myogenin and myogenic differentiation factor [myoD]) and proadipogenic (peroxisome proliferator-activated receptor γ) transcription factors; the denervation-associated proteins tenascin-C, laminin-2, and calcium/calmodulin-dependent kinase II (CaMKII); and cellular alterations in sheep after infraspinatus tenotomy (TEN), suprascapular neurectomy (NEU), or both (TEN-NEU).
Results: Extracellular ground substance increased at the expense of contractile tissue 16 weeks after surgery, correlating with CaMKII isoform levels. Read More
Anaesthesia 2018 Oct 25;73(10):1251-1259. Epub 2018 Jul 25.
Department of Anaesthesiology, Nordsjaellands Hospital, University of Copenhagen, Denmark.
We aimed to examine to what extent a lateral infraclavicular brachial plexus block affected the axillary and the suprascapular nerve. We included patients undergoing hand surgery anaesthetised with a lateral infraclavicular brachial plexus block. Our primary outcome was the relative change in surface electromyography during maximum voluntary isometric contraction of the medial deltoid muscle (axillary nerve) and the infraspinatus muscle (suprascapular nerve) from baseline to 30 min after the block procedure. Read More
Anesthesiology 2018 Aug;129(2):380
University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania (S.O.).
Clin Orthop Relat Res 2018 Aug;476(8):1665-1679
Z. Wang, Department of Orthopaedic Surgery, Third Xiangya Hospital of Central South University, Changsha, Hunan Province, China Z. Wang, B. T. Feeley, H. T. Kim, X. Liu, San Francisco Veterans Affairs Medical Center, Department of Veterans Affairs, San Francisco, CA, USA; and the Department of Orthopedic Surgery, University of California at San Francisco, San Francisco, CA, USA.
Background: In large rotator cuff tears, retraction of the supraspinatus muscle creates suprascapular nerve traction and compression. However, suprascapular nerve transection, when used in previous models, is different from chronic compression of the suprascapular nerve in patients. To define the role of suprascapular nerve chronic injury in rotator cuff muscle atrophy and fatty infiltration, we developed a novel reversible suprascapular nerve compression mouse model. Read More
Minerva Anestesiol 2018 Jul 9. Epub 2018 Jul 9.
Department of Medicine, Anesthesiology and Intensive Care Clinic, University of Udine, Udine, Italy.
Background: While interscalenic nerve block (INB) is still considered the 'gold standard' for shoulder arthroscopy, its postoperative analgesic effectiveness has recently been called into question. Meanwhile, in light of its high-quality postoperative pain relief, a renewed interest has emerged in suprascapular nerve block (SNB). The first aim of our study was to compare the postoperative analgesia effects of these two types of block at 2, 4 and 6 hours after surgery. Read More
Arthroscopy 2018 Jul;34(7):2254-2255
University of Utah.
When a patient presents with shoulder pain and the workup reveals a spinoglenoid notch cyst, it is presumed by most to be related to an intra-articular SLAP tear. When managing this condition cyst excision has been advocated to alleviate suprascapular nerve pressure and also perhaps minimize recurrence assuming that the SLAP has also been treated. Cyst excision can endanger the suprascapular nerve and takes additional operating room time. Read More
Arch Orthop Trauma Surg 2018 Dec 28;138(12):1719-1724. Epub 2018 Jun 28.
Hospital Universitario Ramón y Cajal, Madrid, Spain.
Introduction: Recurrent posterior glenohumeral instability poses a challenge for treatment. Bone block procedures have been advocated in cases where a bony defect is present. However, these techniques are not free of complications due to the proximity of neurovascular structures. Read More
Zhongguo Gu Shang 2018 06;31(6):493-496
Wangjing Hospital, China Academy of Chinese Medical Sciences, Beijing 100102, China;
The miminally-invasive techniques of traditional Chinese medicine(TCM) uses different types of acupuncture needles to treat diseased locations with special techniques. These techniques include different methods of insertion and closed incision (press cutting, sliding cutting, scrape cutting, etc.). Read More
J Pain Res 2018 15;11:1115-1120. Epub 2018 Jun 15.
Neuromotor and Cognitive Rehabilitation Research Center, Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy.
Purpose: Hemiplegic shoulder pain (HSP) is the most common pain condition after stroke. Pulsed radiofrequency (PRF) treatment of the suprascapular nerve (SSN) effectively relieves shoulder pain conditions. To date, there is no study about the effects of PRF treatment for HSP. Read More
Arthroscopy 2018 Sep 21;34(9):2552-2557. Epub 2018 Jun 21.
Asklipieion Voulas Fifth Orthopedic Department, Athens, Greece.
Purpose: To compare the clinical outcomes and return to sport rate between elite overhead athletes who underwent shoulder arthroscopy and decompression of the suprascapular nerve (SSN) versus overhead athletes who underwent shoulder arthroscopy without SSN release.
Methods: From 2007 to 2014, high-level overhead athletes diagnosed with a rotator cuff tear and/or a glenoid labral lesion and SSN entrapment were included in the study if their symptoms did not improve with nonoperative treatment and if they agreed to undergo surgery and participate. Their preoperative University of California at Los Angeles (UCLA) shoulder score, bilateral postoperative Constant scores, postoperative UCLA score, and return to sport rate were evaluated and compared with those of a group of elite athletes who had a similar diagnosis but refused to undergo SSN decompression during shoulder arthroscopy. Read More
J Vasc Bras 2018 Jan-Mar;17(1):61-65
All India Institute of Medical Sciences Rishikesh - AIIMS Rishikesh, Department of Anatomy, Uttrakhand, India.
The suprascapular artery is normally a branch of the thyrocervical trunk of the subclavian artery. During dissection of the left upper limb of a female cadaver, aged 70 years and fixed in 10% formalin solution, the suprascapular artery was observed aberrantly arising from the first part of the axillary artery. Later, it coursed obliquely behind the clavicle bone and brachial plexus to reach the suprascapular notch, where it was accompanied by the suprascapular nerve. Read More
Reg Anesth Pain Med 2018 Oct;43(7):752-755
From the Department of Anesthesia, Perioperative Medicine and Pain Management, Dalhousie University, Nova Scotia Health Authority and IWK Health Centre, Halifax, Nova Scotia, Canada.
Background And Objectives: Retroclavicular block is designed to overcome the negative aspects of the commonly utilized ultrasound-guided parasagittal approach to the infraclavicular block. However, this approach necessitates the needle traversing an area posterior to the clavicle inaccessible to ultrasound wave conduction. This study sought to document the structures vulnerable to needle injury during a retroclavicular block. Read More
Turk J Med Sci 2018 Jun 14;48(3):462-468. Epub 2018 Jun 14.
Background/aim: Pulsed radiofrequency (PRF) has been reported to be a safe and reliable method for the management of a variety of chronic pain syndromes. It is not known whether the preadministration of local anesthetic increases the size of the electrical field. We revealed the effects of administering local anesthetic on PRF and investigated whether they were related to local anesthetic or fluid effects. Read More
PeerJ 2018 6;6:e4525. Epub 2018 Jun 6.
Facultad de Ciencias, UNESIS (Unidad de Ecología y Sistemática), Pontifica Universidad Javeriana, Bogotá, Colombia.
Although comparative studies of anuran ontogeny have provided new data on heterochrony in the life cycles of frogs, most of them have not included ossification sequences. Using differential staining techniques, we observe and describe differences and similarities of cranial and postcranial development in two hylid species, (Scinaxinae) and (Hylinae), providing new data of ontogenetic studies in these Colombian species. We examined tadpoles raining from Gosner Stages 25 to 45. Read More
J Orthop Sci 2018 Sep 5;23(5):834-841. Epub 2018 Jun 5.
Department of Orthopedic Surgery, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan.
Background: Rotator cuff tears are the most common shoulder injury, and little is known about the underlying etiology of fatty infiltration after rotator cuff tear. Previous studies speculated that rotator cuff tears lead to neural injury due to tethering of the suprascapular nerve at the notch. This study aimed to evaluate fatty infiltration after suprascapular nerve injury and rotator cuff tears. Read More
J Emerg Med 2018 08 21;55(2):e37-e41. Epub 2018 May 21.
University of Illinois and Mercyhealth, Rockford, Illinois.
Background: Chest pain has not been recognized as a manifestation of intracranial hypotension secondary to cerebrospinal fluid leakage.
Case Report: We report on 4 patients with intracranial hypotension diagnosed by the pattern of headaches, temporal proximity to dural puncture, magnetic resonance imaging findings, and resolution of symptoms after epidural blood patch who presented with chest pain. The chest pain was episodic, located in the sternal and interscapular region for the first 3 patients, with no radiation to any other region and no clear relationship to exertion. Read More
J Hand Surg Asian Pac Vol 2018 Jun;23(2):267-269
* Department of Orthopedic Surgery, Myongji Hospital, Goyang, Korea.
Herein, we report a large lipoma at the spinoglenoid notch that mimicked a rotator cuff tear, which occurred in a 61-year-old male farmer. Weakness and pain in the shoulder started abruptly after hard labor, and our first impression was a traumatic rotator cuff tear; however, there was no tear on MRI, and complete marginal excision of a large lipoma at the spinoglenoid notch relieved the symptoms completely at a postoperative three-month follow-up visit. We believe that certain activities such as forceful shoulder abduction may have caused the sudden onset of suprascapular neuropathy in the loosely compressed suprascapular nerve by the lipoma. Read More
Clin Anat 2018 Sep 23;31(6):824-829. Epub 2018 Oct 23.
Department of Anesthesia and Critical Care Medicine, Hôpital Pierre-Paul Riquet, Toulouse, France.
Difficulty in identifying the susprascapular nerve (SSN) limits the success of US-guided regional anesthetic injections. A proximal SSN block could be an effective and reliable approach. The primary objective was to validate the feasibility of the US-guided proximal SSN block. Read More
Zookeys 2018 20(751):113-128. Epub 2018 Apr 20.
Instituto Nacional de Biodiversidad INABIO, Rumipamba 341 y Av. De los Shyris, Quito, Pichincha, Ecuador.
A new species of is described from the highland paramos on the eastern slopes of the Cajas Massif, southern Andes of Ecuador, at 3400 m. This new species is characterized by having a distinctive reddish color, cutaneous macroglands in suprascapular region and surfaces of arm and legs, and by lacking dentigerous processes of vomers. The cutaneous macroglands are similar to those exhibited by several species of the group, and may suggest a close phylogenetic relationship. Read More
Reg Anesth Pain Med 2018 Oct;43(7):738-744
Limburg Clinical Research Program, Hasselt University and Jessa Hospital, Hasselt, Belgium.
Background And Objectives: This randomized trial aimed to assess if a combined suprascapular-axillary nerve block (SSB) is noninferior (margin = 1.3 on a 0- to 10-point scale) to interscalene block (ISB) in treating pain after arthroscopic shoulder surgery. Secondary end points included opioid consumption, dyspnea, discomfort associated with muscle weakness, and patient satisfaction. Read More
World Neurosurg 2018 Jul 11;115:128-133. Epub 2018 Apr 11.
Department of Neurosurgery, Mayo Clinic, Jacksonville, Florida, USA. Electronic address:
Background: Traumatic cervical pseudomeningoceles (TCPs) occur secondary to traction of the cervical nerve roots resulting in violation of the dura. Surgical repair is not necessary in most cases because pseudomeningoceles have a high propensity to spontaneously resolve with conservative management alone. Currently, there are a limited number of cases of large TCPs (large is defined as ≥6 cm in greatest diameter), and there is no established guideline for the management of such lesions. Read More
Anesthesiology 2018 Jul;129(1):47-57
From the Virginia Mason Medical Center, Seattle, Washington (D.B.A., N.A.H., R.S.J., S.C.Y.) the Washington Permanente Medical Group, Seattle, Washington (B.E.S.) Axio Research, Seattle, Washington (A.E.S.).
Background: The interscalene nerve block provides analgesia for shoulder surgery, but is associated with diaphragm paralysis. One solution may be performing brachial plexus blocks more distally. This noninferiority study evaluated analgesia for blocks at the supraclavicular and anterior suprascapular levels, comparing them individually to the interscalene approach. Read More
Reg Anesth Pain Med 2018 Aug;43(6):590-595
Montreal General Hospital, Department of Anesthesia, McGill University, Montreal, Quebec, Canada.
Background And Objectives: This randomized trial compared ultrasound (US)-guided interscalene block (ISB) and small-volume supraclavicular block (SCB) for arthroscopic shoulder surgery. We hypothesized that SCB would provide equivalent analgesia to ISB 30 minutes after surgery without the risk of hemidiaphragmatic paralysis (HDP).
Methods: All patients received an US-guided intermediate cervical plexus block. Read More
Neurosurgery 2018 Feb 26. Epub 2018 Feb 26.
Department of Neurologic Surgery, Mayo Clinic, Rochester, Minnesota.
Background: Several hypotheses have been proposed for the pathophysiology of suprascapular nerve (SSN) palsy, including compression, traction, and nerve inflammation.
Objective: To provide insight into the pathophysiology of isolated nontraumatic SSN palsy by performing critical reinterpretations of electrodiagnostic (EDX) studies and magnetic resonance (MR) images of patients with such diagnosis.
Methods: We retrospectively reviewed all patients referred to our institution for the past 20 yr with a diagnosis of nontraumatic isolated suprascapular neuropathy who had an upper extremity EDX study and a shoulder or brachial plexus MR scan. Read More