Abstract:
BACKGROUND:The subscapularis is an important mover and stabilizer of the glenohumeral joint. Since the advent of shoulder arthroscopy, partial tears are found in 43% of rotator cuff patients. While partial tears to the upper band occur more commonly, little is known about the structure and mechanical behavior of the individual bands. Therefore, the objective of this study was to measure tensile mechanical properties, corresponding collagen fiber alignment, and histology in the upper and lower bands of the rat subscapularis tendon. MATERIALS AND METHODS:Thirty adult Sprague-Dawley rats were euthanized and subscapularis tendons dissected out for mechanical organization (n = 24) and histologic assessment (n = 6). Collagen organization was measured with a custom device during mechanical testing. RESULTS:Linear-region modulus at the insertion site was significantly lower in the upper band compared to the lower band, while no differences were found at the midsubstance location. The upper band was found to be significantly less aligned and demonstrated a more rounded cell shape than the lower band at the insertion site. DISCUSSION:This study demonstrated that the 2 bands of the subscapularis tendon have differential mechanical, organizational, and histological properties, which suggests a functional deficit exists to the upper band of the subscapularis and may be contributing to the prevalence of partial subscapularis tears. CONCLUSIONS:Clinicians should be aware that the upper band of the subscapularis tendon may be at higher risk of developing tears, based on decreased mechanical properties and a more disorganized collagen fiber distribution.
journal_name
J Shoulder Elbow Surgjournal_title
Journal of shoulder and elbow surgeryauthors
Thomas SJ,Miller KS,Soslowsky LJdoi
10.1016/j.jse.2011.11.038subject
Has Abstractpub_date
2012-12-01 00:00:00pages
1687-93issue
12eissn
1058-2746issn
1532-6500pii
S1058-2746(11)00615-Xjournal_volume
21pub_type
杂志文章abstract:BACKGROUND:Shoulder osteoarthritis is a gradual wearing of the articular cartilage concomitant with degenerative rotator cuff tears (RCTs). This pathologic disorder is related to inflammation, oxidative stress, and angiogenesis. Degenerative alterations may prompt production of cytokines and angiogenesis-related protei...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2017.08.007
更新日期:2018-01-01 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::The posterior border of the ulna is the most important bony landmark for all dorsal surgical approaches and the guideline for open reduction, internal fixation of displaced comminuted fractures of the proximal ulna. We examined 74 cadaveric specimens to evaluate the anatomy of the proximal ulna, especially the course ...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2006.12.008
更新日期:2007-09-01 00:00:00
abstract::Compression of the lateral cutaneous nerve of the forearm (LCNF), the distal sensory termination of the musculocutaneous nerve, can occur below the biceps aponeurosis, most commonly after strenuous elbow extension or forearm pronation. Between 1965 and 1992, 15 patients reported pain in the anterolateral elbow with "b...
journal_title:Journal of shoulder and elbow surgery
pub_type: 临床试验,杂志文章
doi:10.1016/s1058-2746(98)90053-2
更新日期:1998-05-01 00:00:00
abstract::The purpose of this study was to investigate the 3-dimensional trabecular bone mineral density (BMD) in the humeral head and determine the effects of trabecular BMD on the pullout strength of cancellous screws. Five regions of interest (ROIs) were defined in the humeral head (superior- anterior, superior-posterior, ce...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2005.09.007
更新日期:2006-09-01 00:00:00
abstract:BACKGROUND:The rate of rotator cuff repair failure is between 13% and 67%. Porcine small intestine submucosa (SIS) may be suitable to augment the repair. METHODS:There were 62 patients with moderate and large cuff tears randomized to repair alone (control) or augmentation with SIS (Restore Orthobiologic Implant; DePuy...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1016/j.jse.2016.06.006
更新日期:2016-10-01 00:00:00
abstract:PURPOSE:The purpose of this study was to determine radiocapitellar contacts before and after radial head replacement, using the bipolar design of Judet. METHODS:Joint contacts were measured by moulding the joint surfaces of 6 fresh-frozen cadaveric specimens, in various positions of elbow flexion and forearm rotation....
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2009.09.015
更新日期:2010-03-01 00:00:00
abstract::Fifty patients who underwent reoperation for failure of previous repair of rotator cuff rupture were evaluated 24 to 84 months after final repair (mean 30 months). Forty-eight of these patients had undergone all previous attempts at repair elsewhere. Most patients had had one or two earlier attempts, but four patients...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/S1058-2746(09)80054-2
更新日期:1992-11-01 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::The goal of this study was to look at the pattern of osteophyte distribution on a 3-dimensional computed tomography scan of patients with symptomatic osteoarthritis in the elbow. We recruited 22 consecutive patients with symptomatic osteoarthritis of the elbow for the study. Three-dimensional reconstructed anterior, p...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2008.03.012
更新日期:2008-11-01 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
abstract:BACKGROUND:In 2013 Moor et al introduced the concept of the critical shoulder angle (CSA) and suggested that an abnormal CSA was a leading factor in development of rotator cuff tear (RCT) and osteoarthritis (OA) of the shoulder. This study assessed whether the CSA was associated with RCT and OA and tested the inter- an...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2017.06.001
更新日期:2017-12-01 00:00:00
abstract:BACKGROUND:After isolated subscapularis repair, improvement in shoulder function has been reported at short-term review. The purpose of this study was to determine whether arthroscopic subscapularis repair provides durable improvement in objective and subjective shoulder function with a low structural retear rate. MET...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2019.03.024
更新日期:2019-11-01 00:00:00
abstract:BACKGROUND:Previous studies have reported that glenohumeral internal rotation deficit (GIRD) may increase the risk of shoulder injury. However, the effects of GIRD on baseball pitching among pitchers of different age groups are still unclear. METHODS:The study participants were 24 high school and 24 university pitcher...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2017.09.001
更新日期:2018-04-01 00:00:00
abstract::The impingement test, placement of local anesthetic in the subacromial space, is considered a useful tool in diagnosing impingement syndrome. The purpose of this study was to examine the predictive value of the impingement test with respect to outcome after arthroscopic subacromial decompression. Fifty-five patients w...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2003.12.006
更新日期:2004-03-01 00:00:00
abstract:BACKGROUND:The purpose of this study was to document the prevalence of shoulder osteoarthritis (OA) in the elderly population in South Korea, to determine the risk factors for shoulder OA, and to evaluate the relationship with function. MATERIALS AND METHODS:This project was part of a population-based prospective coho...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2011.01.021
更新日期:2011-07-01 00:00:00
abstract:BACKGROUND:Radial head arthroplasty (RHA) is a popular method of treatment for complex fractures of the radial head. The purpose of this study was to investigate patient outcomes and radiographic findings associated with a single anatomic monopolar press-fit radial head system commonly used for the treatment of radial ...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2015.11.014
更新日期:2016-05-01 00:00:00
abstract:BACKGROUND:Alterations in scapular motion frequently are seen in association with various shoulder disorders. It is common clinically to compare the pathological shoulder with the contralateral shoulder, in spite of arm dominance, to characterize the disorder. However, there have been few articles that test the underly...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2010.09.012
更新日期:2011-06-01 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::The aim of this study was to evaluate the evolution of intraarticular disease in posttraumatic shoulder instability. Ninety-one patients with posttraumatic shoulder instability were examined arthroscopically. The intraarticular disease was recorded on a special documentation sheet (containing 67 descriptive items). Th...
journal_title:Journal of shoulder and elbow surgery
pub_type: 临床试验,杂志文章
doi:10.1016/s1058-2746(99)90058-7
更新日期:1999-01-01 00:00:00
abstract:BACKGROUND:Little is known about the role that a torn superior labrum (SLAP) plays in glenohumeral stability after biceps tenodesis. This biomechanical study evaluated the contribution of a type II SLAP lesion to glenohumeral translation in the presence of biceps tenodesis. The authors hypothesize that subsequent to bi...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2013.07.036
更新日期:2014-04-01 00:00:00
abstract:BACKGROUND:This study investigated early functional outcome, quality of life, and the level of independency in elderly patients after primary reverse shoulder arthroplasty (RSA) for complex fractures of the proximal humerus. METHODS:This was a prospective case series that included 33 patients, aged ≥70 years, with a h...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2017.01.021
更新日期:2017-08-01 00:00:00
abstract:BACKGROUND:Total shoulder arthroplasty is traditionally performed through an anterior deltopectoral exposure with subscapularis tenotomy. Postoperative subscapularis dysfunction is common and adversely affects clinical outcomes. Consequently, surgeon interest in lesser tuberosity osteotomy has grown in an effort to imp...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2011.07.008
更新日期:2012-08-01 00:00:00
abstract::The purpose of this study was to add critical information to the data already available on anthropometry of the proximal humerus. Two hundred macerated humeri were examined. Measurements were taken either directly on the bones or on standardized radiographic projections. The methodology was validated and showed a mean...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1067/mse.2002.124429
更新日期:2002-07-01 00:00:00
abstract:BACKGROUND:Low-cost motion analysis systems (LCMASs) have emerged as easy and practical methods to measure the functional workspace (FWS). Thus, we ventured to apply an LCMAS, the Kinect2 gaming camera, to evaluate the FWS in patients with shoulder osteoarthritis (OA) and patients who underwent total shoulder arthropla...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2019.03.029
更新日期:2019-11-01 00:00:00
abstract::In a prospective population-based study of all shoulder injuries seen at Malmö General Hospital during 1987, the incidence and causes of major injuries involving fractures of the clavicle, scapula, or proximal humerus and glenohumeral or acromioclavicular dislocations were investigated in children, adults, and the eld...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/s1058-2746(05)80063-1
更新日期:1995-03-01 00:00:00
abstract::The Oxford shoulder scores (OSS) and Constant scores were collected prospectively for 103 patients treated conservatively for proximal humeral fractures. The paired scores were analyzed by assessing the degree of correlation, the agreement between the scores, and their sensitivity to change. Linear regression analysis...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2007.04.019
更新日期:2008-01-01 00:00:00
abstract::We report 31 patients with displaced fractures of the proximal humerus treated by transitory percutaneous pinning. The Neer fracture classification was used; there were 7 two-part, 20 three-part, and 4 four-part fractures. The Constant score was used for evaluation of the results; the mean score was 80 points. The hig...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/s1058-2746(99)90091-5
更新日期:1999-11-01 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:Shoulder arthroplasty is the fastest growing joint replacement surgery in the United States, and optimal postoperative pain management is critical to optimize outcomes for these surgeries. Liposomal bupivacaine (LB) has gained popularity for its potential to provide extended postoperative pain relief with po...
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.2017.06.044
更新日期:2017-10-01 00:00:00