Abstract:
:Patients with rotator cuff tears have varying degrees of symptom expression. Our purpose was to evaluate the differential firing patterns of the rotator cuff, deltoid, and scapular stabilizer muscle groups in normal control subjects and in patients with symptomatic and asymptomatic 2-tendon rotator cuff tears. Eighteen subjects were evaluated: six normal subjects and twelve with 2-tendon cuff tears (six asymptomatic and six symptomatic). All cuff tear patients had magnetic resonance imaging (MRI) scans documenting superoposterior tear configurations involving the supraspinatus and infraspinatus tendons; all normal subjects had an ultrasound examination confirming the absence of cuff pathology. Subjects were grouped based on shoulder examination and outcomes questionnaires. Asymptomatic patients had minimal pain (<3 on the visual analog scale and no loss of active range of motion compared with the contralateral side); symptomatic patients had pain greater than 3 on the visual analog scale and decreased range of motion compared with the contralateral side (>10 degrees of motion loss). Electromyographic activity from 12 muscles and kinematic data were collected simultaneously during 10 functional tasks. Both symptomatic and asymptomatic cuff subjects demonstrated a trend toward increased muscle activation during all tasks compared with normal subjects. During the internal rotation tasks, asymptomatic patients had significantly greater (P<.05) subscapularis activity than symptomatic patients (65% maximal voluntary contraction [MVC] vs 42% MVC). During the carrying task, asymptomatic patients demonstrated significantly less (P<.03) upper trapezius muscle activation than symptomatic patients (16% MVC vs 50% MVC). During shoulder elevation tasks, symptomatic patients had significantly greater supraspinatus (52% MVC vs 28% MVC, P<.03), infraspinatus (32% MVC vs 16% MVC, P<.05), and upper trapezius (39% MVC vs 20% MVC, P<.04) muscle activation compared with asymptomatic patients. During heavy elevation (8 lb), asymptomatic patients showed a trend toward increased activation (P<.06) of the subscapularis compared with symptomatic patients (34% MVC vs 21% MVC). Differential shoulder muscle firing patterns in patients with rotator cuff pathology may play a role in the presence or absence of symptoms. Asymptomatic subjects demonstrated increased firing of the intact subscapularis, whereas symptomatic subjects continued to rely on torn rotator cuff tendons and periscapular muscle substitution, resulting in compromised function.
journal_name
J Shoulder Elbow Surgjournal_title
Journal of shoulder and elbow surgeryauthors
Kelly BT,Williams RJ,Cordasco FA,Backus SI,Otis JC,Weiland DE,Altchek DW,Craig EV,Wickiewicz TL,Warren RFdoi
10.1016/j.jse.2004.06.010keywords:
subject
Has Abstractpub_date
2005-03-01 00:00:00pages
165-71issue
2eissn
1058-2746issn
1532-6500pii
S1058274604001880journal_volume
14pub_type
杂志文章abstract:BACKGROUND:Total elbow arthroplasty (TEA) can be complicated by periprosthetic joint infection (PJI) with potentially catastrophic failure. The purpose of this study was to describe the results of elbow PJI treatment at a tertiary-care referral center. METHODS:An institutional TEA database was queried for infection an...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2018.05.035
更新日期:2018-09-01 00:00:00
abstract::Hemophilia is an X-linked recessive deficiency of clotting factor VIII (hemophilia A) or IX (hemophilia B) that can result in hemarthrosis of various joints, including the elbow. Left unchecked, this can lead to progressive joint destruction and significant morbidity. Appropriate management of the elbow joint through ...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章,评审
doi:10.1016/j.jse.2015.06.018
更新日期:2015-10-01 00:00:00
abstract:BACKGROUND:To determine the effectiveness of hybrid glenoid components in reducing the frequency of glenoid component loosening, we evaluated clinical and radiographic outcomes at a minimum 5-year follow-up in 45 shoulders that underwent total shoulder arthroplasty (TSA) using a system with a central porous titanium po...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2018.01.012
更新日期:2018-08-01 00:00:00
abstract:BACKGROUND:Although massive rotator cuff tears occasionally lead to severe impairment of shoulder function, the criteria for losing the ability to elevate the arm are unclear. This study aimed to analyze the features of both tear size and 3-dimensional (3D) shoulder kinematics that correspond to the loss of the ability...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2020.07.021
更新日期:2020-08-01 00:00:00
abstract::An anterior glenoid labrum reconstruction in conjunction with a modified anterior-inferior capsular shift is described and was performed in 64 patients (69 shoulders) with traumatic anterior or anterior-inferior glenohumeral instability. Sixty-three operations were performed for recurrent dislocation and six for recur...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/1058-2746(93)90076-S
更新日期:1993-11-01 00:00:00
abstract::The purpose of this study is to report on our experience with thermal capsulorrhaphy in the treatment of multidirectional instability of the shoulder. Thirty-three consecutive patients (33 shoulders) with multidirectional instability were treated with arthroscopic thermal capsulorrhaphy. Twelve patients had a history ...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1067/mse.2002.121476
更新日期:2002-03-01 00:00:00
abstract:BACKGROUND:The role of Propionibacterium acnes in shoulder arthroplasty and broadly in orthopedic prosthetic infections has historically been underestimated, with biofilm formation identified as a key virulence factor attributed to invasive isolates. With an often indolent clinical course, P acnes infection can be diff...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2016.09.042
更新日期:2017-04-01 00:00:00
abstract:BACKGROUND:Hemolysis has been suggested as a feature conferring increased pathogenicity to certain Propionibacterium acnes strains in the setting of shoulder infection. The purpose of this study was to compare the virulence of hemolytic and nonhemolytic P acnes strains in patients undergoing revision shoulder arthropla...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2017.12.025
更新日期:2018-06-01 00:00:00
abstract:BACKGROUND:The purpose of this study is to review the long term results the Kudo and instrumented Bone Preserving elbow prostheses. The instrumented Bone Preserving prosthesis is the successor of the Kudo prosthesis, and both of these are nonconstrained elbow resurfacing prostheses. METHODS:Fifty-five nonconstrained e...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2013.06.013
更新日期:2013-11-01 00:00:00
abstract:INTRODUCTION:Structural glenoid bone grafting in reverse total shoulder arthroplasty (RSA) has previously been reported to have good functional outcomes and low complication rates. We have observed different complication rates and hypothesized that baseplate fixation and severity of deformity may be predictors of early...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2019.07.035
更新日期:2020-03-01 00:00:00
abstract:BACKGROUND:The literature available on the results after noncemented total elbow arthroplasty (TEA) in inflammatory arthritis is limited. METHODS:Ten patients (7 women, 3 men; 14 elbows total) who underwent custom, noncemented TEA from 1988 to 1995 were retrospectively reviewed. The average age was 28 years (range, 17...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2014.02.026
更新日期:2014-09-01 00:00:00
abstract::A randomized study of two types of conservative treatment of 78 shoulders in 78 patients with rotator cuff tears was performed. Twenty-five milligrams of sodium hyaluronate (SH) was injected into shoulders in one group (SH group) and 2 mg of dexamethasone was injected in the other group (steroid group). Injection of e...
journal_title:Journal of shoulder and elbow surgery
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1067/mse.2001.113501
更新日期:2001-05-01 00:00:00
abstract:BACKGROUND:Radiocapitellar pathology after traumatic injury to the elbow can be challenging to treat. The anconeus interposition arthroplasty has been proposed to treat radiocapitellar or proximal radioulnar joint dysfunction and pain, or both. This study evaluated whether radial head excision (native or prosthetic), f...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2018.02.052
更新日期:2018-06-01 00:00:00
abstract::There is little information available concerning the results of rotator cuff debridement in patients with rheumatoid arthritis (RA). We performed a review of 16 shoulders with underlying RA that underwent arthroscopic rotator cuff tear debridement; there were 10 full-thickness tears and 6 partial-thickness tears. Of t...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2006.04.014
更新日期:2007-01-01 00:00:00
abstract:BACKGROUND:The purpose of the study was to identify genetic variants associated with rotator cuff disease by performing a genome-wide association study (GWAS) for shoulder impingement utilizing the UK Biobank (UKB) cohort, and then combining the GWAS data with a prior GWAS for rotator cuff tears. The loci identified by...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2020.11.025
更新日期:2021-01-19 00:00:00
abstract::The interscalenic block technique is widely used for ambulatory shoulder surgery despite a substantial number of failures and adverse effects. We prospectively evaluated satisfaction in 40 consecutive patients who underwent open Bankart repair under a single general anesthesic performed in an ambulatory care unit. The...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2005.07.011
更新日期:2006-03-01 00:00:00
abstract::The purpose of our study was to assess the effect of comorbidity and duration of nonunion on the general health status and joint-specific outcome of a group of patients treated for nonunion of the humeral shaft. We identified 25 consecutive patients with nonunion of the humeral shaft, all treated with compression plat...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/s1058-2746(98)90222-1
更新日期:1998-03-01 00:00:00
abstract:BACKGROUND:The purpose of this study was to increase our understanding of the pathoanatomy of the ulnar collateral ligament (UCL) by performing a descriptive analysis of the surgical inspection of the anterior bundle in patients undergoing reconstruction. METHODS:A single-surgeon series of 163 patients who underwent U...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2019.01.017
更新日期:2019-08-01 00:00:00
abstract::A review of 30 patients who underwent a primary repair of their rotator cuff 10 years previously was performed. The average age of the patients at the time the operation was performed was 51 years (range 20 to 65 years). Twenty-seven men and three women were reviewed. An acromioplasty was performed in all patients. No...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/1058-2746(93)90001-W
更新日期:1993-03-01 00:00:00
abstract:BACKGROUND:Increased critical shoulder angles consist of both the acromial cover and glenoid inclination and have been found in patients with rotator cuff pathology. The purpose of this study was to determine the correlation of the critical shoulder angle and glenoid inclination and to determine the difference in gleno...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2015.07.013
更新日期:2015-12-01 00:00:00
abstract:BACKGROUND:Obtaining postoperative laboratory studies after primary reverse shoulder arthroplasty (RSA) is a common practice. However, justification of this practice remains unclear. This study assesses the utility of routine postoperative laboratory studies in RSA. METHODS:The electronic medical records of 369 patien...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2019.12.023
更新日期:2020-08-01 00:00:00
abstract:BACKGROUND:To examine the rates and predictors of deep periprosthetic infections after primary total shoulder arthroplasty (TSA). METHODS:We used prospectively collected data on all primary TSA patients from 1976-2008 at Mayo Clinic Medical Center. We estimated survival free of deep periprosthetic infections after pri...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2012.01.006
更新日期:2012-11-01 00:00:00
abstract::A prospective study was undertaken to determine if patients recover pre-injury level of shoulder function 1 year after 1 part proximal humeral fractures. Of the 67 patients enrolled, 43 were female and 24 male with an average age of 64.8 years (range, 25-90 years). All patients underwent a similar treatment protocol c...
journal_title:Journal of shoulder and elbow surgery
pub_type: 临床试验,杂志文章
doi:10.1016/j.jse.2007.07.016
更新日期:2008-03-01 00:00:00
abstract:BACKGROUND:The chondral print (CP) sign is a chondral change on the humeral head underneath the long head of the biceps (LHB) tendon. Several suggested causative links have been described, but the pathologic mechanism remains unclear. METHODS:We designed this prospective cohort association study of 102 consecutive sho...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2016.11.003
更新日期:2017-06-01 00:00:00
abstract:BACKGROUND:Reports regarding arthroscopic fixation of the osteochondral fragments for elbow osteochondritis dissecans (OCD) are few. This study assessed the clinical outcomes of arthroscopic fixation of unstable osteochondral fragments by using absorbable pins over a postoperative period of at least 1 year. METHODS:Th...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2015.07.009
更新日期:2015-11-01 00:00:00
abstract:BACKGROUND:Loosening associated with cemented polyethylene glenoid components is a major concern following total shoulder arthroplasty (TSA). The purpose of this study was to investigate the clinical and radiographic results associated with use of a novel uncemented soft-metal-backed glenoid component (SMBG), with a mi...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章,评审
doi:10.1016/j.jse.2009.12.021
更新日期:2010-06-01 00:00:00
abstract:BACKGROUND:Many studies that describe factors affecting outcome in primary rotator cuff repair (RCR) have been published, but so far there is no review that summarizes them. This systematic review was conducted to identify prognostic factors influencing functional (clinical) outcome and radiologically proven cuff integ...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章,评审
doi:10.1016/j.jse.2014.01.001
更新日期:2014-07-01 00:00:00
abstract:METHODS:We investigated the effect of application of fibroblast growth factor (FGF)-2 on the tendon-to-bone remodeling of repaired supraspinatus tendon in rats subjected to bilateral detachment. FGF-2 (100 mg/kg) in a fibrin sealant or sealant alone was applied on the right and left shoulders, respectively. Twelve anim...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2009.01.013
更新日期:2009-05-01 00:00:00
abstract:HYPOTHESIS:We reviewed the outcome of angular stable plates in addressing displaced lateral-third clavicle fractures. We investigated union, shoulder function, request for implant removal, and return to sport. Our hypothesis was that these implants provide predictable union and return to sports without the negative con...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2014.09.024
更新日期:2015-05-01 00:00:00
abstract:BACKGROUND:Since US Food and Drug Administration approval of the reverse prosthesis in 2003, the incidence of shoulder arthroplasty in the United States has risen dramatically. With increasing demand, efforts have shifted from traditional volume-based health care models to more patient-centered care. The purpose of thi...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2018.05.029
更新日期:2018-09-01 00:00:00