Abstract：
BACKGROUND:Although the safety of the beach-chair position (BCP) is widely accepted, rare devastating neurologic complications have been reported and attributed to cerebral hypoperfusion. Cerebral oxygenation (regional oxygen saturation [rSO2]) can be monitored noninvasively using near-infrared spectroscopy. The purpose of this study was to determine the effect of BCP angle on cerebral oxygenation in patients undergoing shoulder surgery in the BCP. METHODS:Fifty patients undergoing shoulder arthroscopy were prospectively enrolled to participate. Following induction of general anesthesia, each patient's rSO2 was recorded at 0° of elevation and again at 30°, 45°, 60°, and 80° of elevation. Mean rSO2 values and mean differences in rSO2 were reported. RESULTS:An average total decrease of 5% in rSO2 was seen when comparing 0° with 80° (P < .001). There were statistically significant differences in rSO2 values at beach-chair angles of 0° versus 30° (P <.001), 30° versus 45° (P = .007), and 45° versus 60° (P <.001) but not between 60° and 80° (P = .12). The decrease in rSO2 was similar between each progressive increase in the beach-chair angle, leading to a linear decline in rSO2 as the BCP increased (regression slope of -0.060%/°, P <.001). No patient's cerebral oxygenation dropped greater than 20% from baseline. Neither body mass index nor American Society of Anesthesiologists score had a significant impact on the relation of rSO2 to BCP angle. CONCLUSIONS:The average drop in rSO2 is significantly less than the threshold of 20% used as an identifier for a cerebral deoxygenation event. This study illustrates the direct effect the BCP angle has on cerebral oxygenation.
journal_name
J Shoulder Elbow Surgjournal_title
Journal of shoulder and elbow surgeryauthors
Songy CE,Siegel ER,Stevens M,Wilkinson JT,Ahmadi Sdoi
10.1016/j.jse.2017.03.018subject
Has Abstractpub_date
2017-09-01 00:00:00pages
1670-1675issue
9eissn
1058-2746issn
1532-6500pii
S1058-2746(17)30179-9journal_volume
26pub_type
杂志文章abstract：BACKGROUND:The eccentric glenosphere (EG) has been proposed as a way to prevent scapular notching in reverse shoulder arthroplasty (RSA). The purpose of this study was to investigate whether the use of an EG decreases scapular notching compared to matched standard concentric glenosphere (CG) controls. METHODS:A retros...
journal_title：Journal of shoulder and elbow surgery
pub_type： 杂志文章
doi：10.1016/j.jse.2020.10.032
更新日期：2020-12-01 00:00:00
abstract：BACKGROUND:Fatty infiltration of the muscle bellies is an important prognostic factor in rotator cuff tears. It was described initially in computed tomography examinations, and there is an ongoing debate about whether magnetic resonance (MR) is a reliable method for staging fatty infiltration. This study sought to dete...
journal_title：Journal of shoulder and elbow surgery
pub_type： 杂志文章
doi：10.1016/j.jse.2015.02.011
更新日期：2015-08-01 00:00:00
abstract：BACKGROUND:Proximal humerus fractures are one of the most common fractures among elderly patients. We performed a systematic review to detail the demographics, outcomes, and complications of patients who undergo reverse shoulder arthroplasty for complex proximal humerus fractures. METHODS:A systematic review of the li...
journal_title：Journal of shoulder and elbow surgery
pub_type： 杂志文章,评审
doi：10.1016/j.jse.2013.09.012
更新日期：2014-04-01 00:00:00
abstract：:The subacromial bursa is the major component of the subacromial gliding mechanism. The neural elements of the subacromial bursa obtained from specimens that underwent autopsy and surgery were investigated by the silver impregnation and immunohistochemical methods with antisera to substance P and calcitonin gene-relate...
journal_title：Journal of shoulder and elbow surgery
pub_type： 杂志文章
doi：10.1016/s1058-2746(96)80069-3
更新日期：1996-09-01 00:00:00
abstract：BACKGROUND:Little is known about the short-term temporal outcomes of an arthroscopic capsular release for adhesive capsulitis (frozen shoulder). Specifically, it is not known how immediate the improvements are and how quickly patients return to normal function after an arthroscopic release. METHODS:The study included ...
journal_title：Journal of shoulder and elbow surgery
pub_type： 杂志文章
doi：10.1016/j.jse.2015.12.025
更新日期：2016-09-01 00:00:00
abstract：BACKGROUND:The aim of this study was to provide subjective and objective results of surgical treatment of unstable elbow dislocations with the hinged external fixation technique. METHODS:Twenty-six patients were available for re-examination after treatment. Parameters used to quantify the subjective functional results...
journal_title：Journal of shoulder and elbow surgery
pub_type： 杂志文章
doi：10.1016/j.jse.2014.09.034
更新日期：2015-02-01 00:00:00
abstract：BACKGROUND:Previous studies have reported that glenohumeral internal rotation deficit (GIRD) may increase the risk of throwing shoulder injuries. The purpose of this study was to analyze the conditions of throwing shoulder in professional baseball pitchers with GIRD by comparing with those in pitchers without GIRD. ME...
journal_title：Journal of shoulder and elbow surgery
pub_type： 杂志文章
doi：10.1016/j.jse.2020.10.041
更新日期：2020-12-05 00:00:00
abstract：:The surgical treatment of chronic acromioclavicular injuries remains controversial. There is increasing use of autogenous tendon grafts to perform these reconstructions. This study examined the mechanical properties of differing configurations of these grafts. Mechanical testing of acromioclavicular joint reconstructi...
journal_title：Journal of shoulder and elbow surgery
pub_type： 杂志文章
doi：10.1016/j.jse.2008.01.143
更新日期：2008-09-01 00:00:00
abstract：BACKGROUND:Non-cross-linked xenogeneic extracellular matrix graft materials have typically elicited a hypersensitivity reaction when implanted into humans or other primates. The purpose of this study was to examine the histologic and immune response to a non-cross-linked porcine-derived dermal extracellular matrix graf...
journal_title：Journal of shoulder and elbow surgery
pub_type： 杂志文章
doi：10.1016/j.jse.2011.03.014
更新日期：2012-05-01 00:00:00
abstract：BACKGROUND:Patients often localize pain in the anterior shoulder; however, this patient-localized pain does not necessarily correlate to the location of disease. Unguided shoulder injections are common in clinical practice. The accuracy of unguided biceps tendon sheath injections has not been studied. Patient managemen...
journal_title：Journal of shoulder and elbow surgery
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.jse.2011.04.004
更新日期：2011-10-01 00:00:00
abstract：BACKGROUND:Hyaluronic acid (HA) is an analgesic and chondroprotective agent often used for the nonoperative treatment of osteoarthritis (OA). The effects of HA injections are well studied in the treatment of knee OA, but the effects in glenohumeral OA remain unclear. This study evaluated the efficacy of HA to reduce pa...
journal_title：Journal of shoulder and elbow surgery
pub_type： 杂志文章,meta分析
doi：10.1016/j.jse.2018.09.011
更新日期：2019-03-01 00:00:00
abstract：BACKGROUND:The purpose of this paper is to examine the intra-observer and inter-observer reliability of preoperative templating to help determine its usefulness for approximating proximal humeral stem and head size in shoulder arthroplasty. METHODS:Thirty-one nonconsecutive patients underwent uncemented total shoulder...
journal_title：Journal of shoulder and elbow surgery
pub_type： 杂志文章
doi：10.1016/j.jse.2008.11.015
更新日期：2009-09-01 00:00:00
abstract：:Subacromial bursal specimens from 63 patients undergoing surgery for rotator cuff tearing (n = 43), the impingement syndrome (n = 14), and calcifying tendinitis n = 6) were studied to characterize the reactions that develop at the tendinopathy "lesional" sites. Intensity of the bursal reactions and production of type ...
journal_title：Journal of shoulder and elbow surgery
pub_type： 杂志文章
doi：10.1016/s1058-2746(97)90033-1
更新日期：1997-03-01 00:00:00
abstract：:Fatty degeneration of chronically injured muscle is a commonly recognized consequence of massive rotator cuff tears. Current surgical treatments are unable to alter or reverse the progression of fatty degeneration and are associated with poor functional outcomes in these patients. Therefore, a better understanding of ...
journal_title：Journal of shoulder and elbow surgery
pub_type： 杂志文章,评审
doi：10.1016/j.jse.2011.11.017
更新日期：2012-02-01 00:00:00
abstract：BACKGROUND:Pediatric patients with olecranon fractures are uncommon. The tension band suture technique was introduced to reduce the burden of implant removal and other complications. However, to our knowledge, early range of motion (ROM) exercise has not been introduced in this population of patients. Double Vicryl loo...
journal_title：Journal of shoulder and elbow surgery
pub_type： 杂志文章
doi：10.1016/j.jse.2017.03.004
更新日期：2017-07-01 00:00:00
abstract：BACKGROUND:There are various modifications of the Bankart repair, and postoperative changes to the glenoid morphology after the repair are reported. Among the various procedures performed, a decrease in the lateral glenoid diameter might be related to the surgery that involves removal of the articular cartilage and rep...
journal_title：Journal of shoulder and elbow surgery
pub_type： 杂志文章
doi：10.1016/j.jse.2020.04.023
更新日期：2021-01-01 00:00:00
abstract：BACKGROUND:Two popular systems for classifying rheumatoid arthritis affecting the elbow are the Larsen and Sharp schemes. To our knowledge, no study has investigated the reliability of these 2 systems. We compared the intraobserver and interobserver agreement of the 2 systems to determine whether one is more reliable t...
journal_title：Journal of shoulder and elbow surgery
pub_type： 杂志文章
doi：10.1016/j.jse.2016.07.074
更新日期：2017-01-01 00:00:00
abstract：:The risk of glenoid component failure has led us to explore nonprosthetic glenoid arthroplasty coupled with humeral hemiarthroplasty, the "ream and run" (R&R) procedure, for the management of glenohumeral arthritis in active patients. We hypothesized that patients having a R&R procedure would have outcomes comparable ...
journal_title：Journal of shoulder and elbow surgery
pub_type： 杂志文章
doi：10.1016/j.jse.2006.11.003
更新日期：2007-09-01 00:00:00
abstract：BACKGROUND:Patients with a rotator cuff (RC) tear often exhibit scapular dyskinesia with increased scapular lateral rotation and decreased glenohumeral elevation with arm abduction. We hypothesized that in patients with an RC tear, scapular lateral rotation, and thus glenohumeral elevation, will be restored to normal a...
journal_title：Journal of shoulder and elbow surgery
pub_type： 杂志文章
doi：10.1016/j.jse.2015.10.021
更新日期：2016-06-01 00:00:00
abstract：:It is well known that cervical radiculopathy sometimes causes shoulder pain. Hypothesizing that the cause of painful shoulder is related to the cervical spine in the absence of obvious radiculopathy, we measured the anteroposterior diameter of the spinal canal and the range of motion of the cervical spine in patients ...
journal_title：Journal of shoulder and elbow surgery
pub_type： 杂志文章
doi：10.1016/s1058-2746(99)90150-7
更新日期：1999-07-01 00:00:00
abstract：HYPOTHESIS:This study was conducted to test the hypothesis that patients would have improved pain and range of motion after conversion total shoulder arthroscopy but that overall outcome would be substantially affected by the need for removal of the humeral component and associated alterations of bony anatomy or soft t...
journal_title：Journal of shoulder and elbow surgery
pub_type： 杂志文章
doi：10.1016/j.jse.2011.01.024
更新日期：2011-12-01 00:00:00
abstract：HYPOTHESIS/BACKGROUND:Patients who are treated with reverse shoulder arthroplasty in the setting of proximal humeral bone loss present a technical challenge for humeral component fixation. The purpose of this study was to determine the effect of proximal humeral bone loss on fixation of reverse shoulder humeral implant...
journal_title：Journal of shoulder and elbow surgery
pub_type： 杂志文章
doi：10.1016/j.jse.2010.10.026
更新日期：2011-06-01 00:00:00
abstract：BACKGROUND:The optimal technique for arthroscopic rotator cuff repair is still controversial. Large tears with a high grade of retraction have an especially high risk of retearing. This study reports the clinical and radiologic results of a triple-row modified suture bridge technique for the treatment of full-thickness...
journal_title：Journal of shoulder and elbow surgery
pub_type： 杂志文章
doi：10.1016/j.jse.2019.06.010
更新日期：2020-02-01 00:00:00
abstract：BACKGROUND:Health care payers, including the federal government, increasingly base reimbursement on quality. Payers consider readmission rates after total joint arthroplasty an indicator of quality. The Patient Protection and Affordable Care Act contains provisions that preclude payment of hospital cost associated with...
journal_title：Journal of shoulder and elbow surgery
pub_type： 杂志文章
doi：10.1016/j.jse.2013.08.007
更新日期：2014-03-01 00:00:00
abstract：BACKGROUND:To investigate whether preemptive extensive rotator interval (RI) release during arthroscopic rotator cuff repair (ARCR) would reduce postoperative stiffness. METHODS:From July 2015 to September 2016, a total of 80 patients who were scheduled for ARCR were enrolled and randomly allocated into 2 groups: the ...
journal_title：Journal of shoulder and elbow surgery
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.jse.2019.05.021
更新日期：2019-09-01 00:00:00
abstract：:Examination of a large number (1232) of elbows from skeletal specimens revealed that 16% displayed a characteristic pattern of bone formation exactly underlying the area of exquisite point tenderness at the lateral humeral epicondyle found in clinical cases of tennis elbow. These changes are usually not seen on standa...
journal_title：Journal of shoulder and elbow surgery
pub_type： 杂志文章
doi：10.1067/mse.2001.112020
更新日期：2001-03-01 00:00:00
abstract：BACKGROUND:The DASH (Disabilities of the Arm, Shoulder and Hand) is a scored questionnaire that is widely used to evaluate the health-related quality-of-life of patients with upper-limb musculoskeletal disorders. However, numerical changes in the measure scores lack clinical significance without meaningful threshold ch...
journal_title：Journal of shoulder and elbow surgery
pub_type： 杂志文章
doi：10.1016/j.jse.2020.11.027
更新日期：2021-01-20 00:00:00
abstract：BACKGROUND:The purpose of this study was 2-fold: (1) to quantify type E2 bone loss orientation and its association with rotator cuff fatty infiltration and (2) to examine reverse baseplate designs used to manage type E2 glenoids. METHODS:Computed tomography scans of 40 patients with type E2 glenoids were examined for ...
journal_title：Journal of shoulder and elbow surgery
pub_type： 杂志文章
doi：10.1016/j.jse.2019.11.009
更新日期：2020-07-01 00:00:00
abstract：BACKGROUND:Ulnar neuritis (UN) is a common complication of open elbow arthrolysis for elbow stiffness. The purpose of this study was to evaluate the outcome of subcutaneous anterior transposition of the ulnar nerve during open elbow arthrolysis and to describe the risk factors for UN. METHODS:We retrospectively studie...
journal_title：Journal of shoulder and elbow surgery
pub_type： 杂志文章
doi：10.1016/j.jse.2016.01.013
更新日期：2016-06-01 00:00:00
abstract：:During a 6-year period, 2 surgeons prescribed active elbow exercises and avoidance of shoulder abduction (varus stress) for 23 patients (15 men, 8 women) with a mean age of 43 years (range, 19-74 years) who had slight residual subluxation of a dislocated elbow after either nonoperative (3 simple dislocations and 2 fra...
journal_title：Journal of shoulder and elbow surgery
pub_type： 杂志文章
doi：10.1016/j.jse.2007.06.006
更新日期：2008-03-01 00:00:00
