Abstract:
HYPOTHESIS:Analyses of polyethylene components retrieved at revision of total knee, hip, and shoulder replacements have been used to study the effect of design, patient, and surgical factors on initial implant performance, but no studies have reported similar types of findings in retrieved humeral polyethylene components in reverse total shoulder arthroplasty. Our hypothesis is that while the conforming surface of the humeral polyethylene may predispose it to surface wear modalities, as seen in total hip arthroplasty, the presence of clinical instability may also increase the occurrence of focal contact stresses leading to subsurface fatigue failure. MATERIALS AND METHODS:Fourteen humeral polyethylene components were retrieved from revision surgery at a single institution. Each polyethylene was analyzed for 9 modes of damage in each of 4 quadrants into which the bearing surface was divided. For each implant, the most recent radiographs before removal were scored using an adapted radiolucency score, and glenosphere positioning was measured. RESULTS:Despite the short mean length of implantation (0.46 ± 0.5 years), scratching and abrasion were seen in 14 and 13 components, respectively, followed by third-body debris and pitting. The modes of damage observed were most severe in the inferior quadrant of the humeral polyethylene. Scapular notching, glenoid, and humeral radiolucencies were prevalent on preoperative radiographs, but their long-term significance has not yet been elucidated. Increased glenosphere inclination was associated with decreased superior and total glenoid radiolucency, along with total polyethylene wear scores. DISCUSSION:Promising early, functional results with the use of reverse total shoulder arthroplasty has led to the increased expansion of its use, but high complication and revision rates continue to raise concerns regarding implant longevity. The presence of a clinical, adduction deficit may predispose patients to inferior quadrant polyethylene wear. CONCLUSIONS:Impingement of the humeral polyethylene at the lateral edge of the scapula leads to inferior quadrant wear and associated polyethylene failure, and implant instability may predispose the components to fatigue wear mechanisms. Analysis of retrieved humeral polyethylene components, along with patient, design, and surgical factors, provide important information on the causes of component failure.
journal_name
J Shoulder Elbow Surgjournal_title
Journal of shoulder and elbow surgeryauthors
Nam D,Kepler CK,Nho SJ,Craig EV,Warren RF,Wright TMdoi
10.1016/j.jse.2010.05.014subject
Has Abstractpub_date
2010-10-01 00:00:00pages
1003-12issue
7eissn
1058-2746issn
1532-6500pii
S1058-2746(10)00232-6journal_volume
19pub_type
杂志文章abstract:BACKGROUND:Our objective was to determine baseline, normative values for multiple shoulder outcome scores in a young, active population without shoulder symptoms. METHODS:One hundred ninety-two volunteers completed the Single Assessment Numeric Evaluation, modified American Shoulder and Elbow Surgeons score, Western O...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2008.10.009
更新日期:2009-05-01 00:00:00
abstract:BACKGROUND:The purpose of this study was to analyze the outcome of open Bankart repair for failed stabilization surgery at a mean follow-up of >10 years. MATERIALS AND METHODS:Thirty patients underwent revision open Bankart repair by a single surgeon for failed prior stabilization surgery, with a standard technique an...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2014.11.036
更新日期:2015-06-01 00:00:00
abstract:BACKGROUND:Patients undergoing shoulder surgery in the beach chair position may be at increased risk for serious neurocognitive complications due to cerebral ischemia. We sought to define the incidence, patient risk factors, and clinical sequelae of intraoperative cerebral desaturation events. METHODS:Regional cerebra...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2012.12.036
更新日期:2013-09-01 00:00:00
abstract:BACKGROUND:Accurate assessment of glenoid inclination is of interest for a variety of conditions and procedures. The purpose of this study was to develop an accurate and reproducible measurement for glenoid inclination on standardized anterior-posterior (AP) radiographs and on computed tomography (CT) images. MATERIAL...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2011.07.010
更新日期:2012-08-01 00:00:00
abstract:HYPOTHESIS:Arthroscopic osteocapsular arthroplasty for stage III osteoarthritis (advanced stage) shows worse clinical and radiologic outcomes compared with stage I or II according to computed tomography (CT)-based classification. METHODS:Clinical and radiologic outcomes in 65 patients treated with arthroscopic osteoca...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2019.09.036
更新日期:2020-05-01 00:00:00
abstract:HYPOTHESIS:Recent studies have demonstrated a potentially critical role of matrix metalloproteinases (MMPs) and tissue inhibitors of matrix metalloproteinases (TIMPs) in the pathophysiology of rotator cuff tears. We hypothesize that local delivery of a MMP inhibitor after surgical repair of the rotator cuff will improv...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2009.07.010
更新日期:2010-04-01 00:00:00
abstract::Rotator cuff tears are one of the most common causes of pain and disability in the upper extremity. With the use of an animal model, we studied the healing response of a controlled defect in the normal supraspinatus tendon and in a tendon with a reduced intrinsic healing capacity. In 36 Sprague-Dawley rats, defects (2...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/s1058-2746(98)90007-6
更新日期:1998-11-01 00:00:00
abstract:BACKGROUND:The influence of preoperative rotator cuff fatty infiltration (FI) and muscle atrophy (MA) on the postoperative outcome of total shoulder arthroplasty (TSA) has only rarely been investigated and reported in the literature. We hypothesized that more FI and MA would be associated with a worse postoperative fun...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2017.12.021
更新日期:2018-06-01 00:00:00
abstract::The purpose of this study was to investigate neovascularization and the expression of vascular endothelial growth factor (VEGF) in patients with diabetic frozen shoulders. Eleven patients with diabetic frozen shoulders underwent arthroscopic lysis of adhesions, and we observed the reported findings. VEGF expression wa...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2006.01.002
更新日期:2006-11-01 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:Accurate glenoid component placement is important to prevent glenoid component failure in total shoulder arthroplasty (TSA). Navigation may reduce the variability of glenoid component version and inclination; therefore, the aims of this study were to determine, in patients undergoing TSA, whether computer na...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2019.04.037
更新日期:2019-12-01 00:00:00
abstract:BACKGROUND:A hyperosmolar irrigation solution has been reported to be safe and have potential benefits for use during shoulder arthroscopy in an animal model study. In this study, the clinical effects of a hyperosmolar solution were compared with a standard isotonic solution when used for shoulder arthroscopy. METHODS...
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.2017.02.021
更新日期:2017-05-01 00:00:00
abstract:BACKGROUND:Although the effect of 3-dimensional (3D) planning for total shoulder arthroplasty (TSA) on component positioning and patient outcomes has been increasingly studied, the effect of 3D planning on surgeon decision making has not been well studied. METHODS:A retrospective review was performed of a database con...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2020.06.032
更新日期:2020-07-07 00:00:00
abstract:BACKGROUND:Management of shoulder arthritis associated with deltoid paralysis can be very challenging. The purpose of this study was to report the outcome of reverse shoulder arthroplasty with pedicled pectoralis transfer to reconstruct the anterior deltoid in patients with symptomatic shoulder arthritis and a paralyze...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2017.07.007
更新日期:2018-01-01 00:00:00
abstract:BACKGROUND:There is an increasing body of literature suggesting that the use of patient-specific instrumentation (PSI) in total shoulder arthroplasty (TSA) results in improved positioning of the glenoid component. The aim of this in vivo study was to assess the accuracy of PSI of the glenoid component in TSA in a conse...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2017.07.004
更新日期:2018-01-01 00:00:00
abstract::Shoulder internal rotation (IR) is commonly assessed by an indirect method where the hand is placed behind the back and the distance reached by the tip of the extended thumb is recorded. The aim of this study was to assess the validity of measuring active IR range of motion (ROM) by use of the indirect hand-behind-bac...
journal_title:Journal of shoulder and elbow surgery
pub_type: 临床试验,杂志文章
doi:10.1016/j.jse.2005.08.005
更新日期:2006-05-01 00:00:00
abstract:BACKGROUND:The purpose of this study was to perform a cross-sectional analysis of diversity among academic shoulder and elbow surgeons in the United States. METHODS:US shoulder and elbow surgeons who participated in shoulder and elbow fellowship and/or orthopedic surgery resident education as of November 2018 were inc...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2019.11.035
更新日期:2020-04-01 00:00:00
abstract:HYPOTHESIS AND BACKGROUND:Humeral retroversion is defined as the orientation of the humeral head relative to the distal humerus. Because none of the previous methods used to measure humeral retroversion strictly follow this definition, values obtained by these techniques vary and may be biased by morphologic variations...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2014.09.041
更新日期:2015-05-01 00:00:00
abstract:BACKGROUND:Scant data are published about different available therapeutic options for restoration of active elbow flexion in arthrogryposis with varying degrees of improvement. In this retrospective study we evaluated medium-term effects of bipolar latissimus dorsi transfer in patients with arthrogryposis. METHODS:Ped...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2017.04.002
更新日期:2017-11-01 00:00:00
abstract::Cubitus varus deformity after supracondylar fracture of the humerus in children generally includes deformities of varus, hyperextension, and internal rotation. Presently almost all corrective osteotomies for treatment of cubitus varus deformity have been limited to correction of only the varus or of the varus and hype...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/s1058-2746(10)80003-5
更新日期:1995-01-01 00:00:00
abstract:BACKGROUND:Outcomes of arthroscopic superior labral anterior-posterior (SLAP) repairs have been well reported with generally favorable outcomes. Unfortunately, a percentage of patients remain dissatisfied or suffer further injury after SLAP repair and may seek additional treatment. The purpose of this study was to eval...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2013.11.020
更新日期:2014-08-01 00:00:00
abstract:BACKGROUND:Kyphosis is a cause of scapular dyskinesis, which can induce various shoulder disorders, including subacromial impingement syndrome (SIS). This study aimed to clarify the impact of kyphosis on SIS with use of cross-sectional data from the Locomotive Syndrome and Health Outcome in Aizu Cohort Study (LOHAS). ...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2014.04.010
更新日期:2014-12-01 00:00:00
abstract::The purpose of this study is to determine if bipolar radiofrequency energy (bRFE) can enhance delayed surgical repair of acute supraspinatus tendon tears. Bilateral supraspinatus tendon tears were created in 42 Sprague-Dawley rats and repaired at 6 weeks either with or without bRFE augmentation. There were 8 control (...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2006.11.008
更新日期:2007-09-01 00:00:00
abstract:BACKGROUND:Reconstruction of the native plane in biconcave eroded glenoids is difficult. Nevertheless, accurate reconstruction of this plane is imperative for successful total shoulder arthroplasty. This study aims to determine guidelines that can increase the accuracy of glenoid component positioning. METHODS:Three d...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2011.10.030
更新日期:2012-11-01 00:00:00
abstract:BACKGROUND:Large glenoid bone defects in the setting of glenohumeral arthritis can present a challenge to the shoulder arthroplasty surgeon. The results of large structural autografting at the time of reverse total shoulder arthroplasty (RTSA) are relatively unknown. METHODS:This retrospective case series describes th...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2017.07.010
更新日期:2018-01-01 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:BACKGROUND:The purpose of this study was to investigate the incidence of venous thromboembolism (VTE) after elective arthroscopic shoulder surgery. MATERIALS AND METHODS:One hundred seventy-five consecutive patients who underwent arthroscopic shoulder surgery were enrolled (mean age, 61 years). Patients who had VTE pr...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2014.01.054
更新日期:2014-05-01 00:00:00
abstract:BACKGROUND:This systematic review aims to synthesize published data for the most common subscapularis takedown and repair to compare outcomes in the setting of shoulder arthroplasty. METHODS:Searches of MEDLINE and Cochrane Library databases identified studies that reported clinical or radiologic outcomes for subscapu...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章,评审
doi:10.1016/j.jse.2017.08.003
更新日期:2018-02-01 00:00:00
abstract:HYPOTHESIS:We hypothesize that the sling technique provides better long term tuberosity fixation in hemiarthroplasty for severe fractures of the proximal humerus. BACKGROUND:After hemiarthroplasty for proximal humeral fractures, problems exist with deterioration of shoulder function by secondary displacement of the in...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2009.05.018
更新日期:2010-03-01 00:00:00
abstract:BACKGROUND:Significant controversy surrounds optimal treatment of displaced 4-part proximal humeral fractures. Reverse total shoulder arthroplasty (RTSA) has recently been proposed as an alternative to hemiarthroplasty (HA) and open reduction-internal fixation (ORIF). Several authors have questioned the additional impl...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2013.07.044
更新日期:2014-02-01 00:00:00