Abstract:
:The configuration of percutaneous pinning may affect the stability of the fixation of 2-part surgical neck fractures of the humerus. In this investigation, the mechanical properties of four different pin configurations were analyzed by use of 36 fresh-frozen swine femora as an experimental model. The bones were selected according to previously established morphologic parameters. A transverse osteotomy was made in the proximal metaphyseal region of the bone, and the pins were inserted according to the selected configuration (group 1, four ascending parallel pins; group 2, three ascending parallel pins and one descending intersecting pin; group 3, two ascending parallel pins and two descending parallel intersecting pins; and group 4, two ascending parallel pins and two descending converging pins, on different planes [two by two]). The assemblies were subjected to an axial load of up to 1500 N in a universal testing machine, simulating a varus stress. The parameters studied were the maximum load supported and corresponding deformation, load and deformation at the limit of proportionality, rigidity, and resilience. The results showed that all configurations were sufficiently strong, but the maximum load and load at the limit of proportionality were significantly higher (P < .05) in groups 3 and 4 (1314 and 1377 N and 950 and 923 N, respectively) than in groups 1 and 2 (1104 and 1033 N and 738 and 777 N, respectively). Rigidity was significantly higher in group 3 than in groups 1 and 2 but not in group 4. Resilience, maximum deformation, and deformation at the limit of proportionality were not significantly different between groups. We conclude that the experimental model used was reliable for the purpose of the study and that any of the configurations studied would be adequate for the percutaneous fixation of 2-part surgical neck fractures of the humerus but group 3 configuration would be the most efficient.
journal_name
J Shoulder Elbow Surgjournal_title
Journal of shoulder and elbow surgeryauthors
Durigan A Jr,Barbieri CH,Mazzer N,Shimano ACdoi
10.1016/j.jse.2004.04.013keywords:
subject
Has Abstractpub_date
2005-01-01 00:00:00pages
96-102issue
1eissn
1058-2746issn
1532-6500pii
S105827460400148Xjournal_volume
14pub_type
杂志文章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: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:HYPOTHESIS AND BACKGROUND:The role of degeneration is not well understood for rotator cuff pain. If age-related degenerative changes would be the cause of symptoms, degeneration would precede or concur with self-reported pain. We performed 3 systematic literature reviews. Our objectives were to determine the prevalence...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2016.09.060
更新日期:2017-05-01 00:00:00
abstract:BACKGROUND:Total excision of the clavicle is rarely performed. No previous study has documented long-term outcomes with objective measurements of strength, motion, and patient-centered outcomes. We present the long-term consequences of total claviculectomy on shoulder girdle function, global upper extremity function, a...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2013.05.011
更新日期:2014-02-01 00:00:00
abstract::From 710 consecutive open rotator cuff repairs by a single surgeon, the results of 667 were available for detailed analysis. Patient-assessed outcomes and the ability to perform specific activities of daily living, employment, and recreation were correlated with independent nonstructural variables including age, sex, ...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1067/mse.2002.122271
更新日期:2002-05-01 00:00:00
abstract:BACKGROUND:This study was conducted to report loss of reduction and complications after single-tunnel coracoclavicular (CC) ligament reconstruction with autogenous semitendinosus tendon graft for acute acromioclavicular (AC) joint dislocations. METHODS:This retrospective study included patients with acute, unstable AC...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2016.09.014
更新日期:2017-04-01 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: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::To investigate the contribution of bony stability to the pathogenesis of the loose shoulder, geometric parameters of the acromion by use of cineradiography were evaluated in patients with a loose shoulder and compared with those in the normal shoulder. One hundred twenty healthy individuals and eighty-two patients wer...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2004.01.002
更新日期:2004-07-01 00:00:00
abstract::The purpose of this report was to investigate the vascular anatomy of the ulnar nerve at the elbow with a technique of combined India ink and latex injection followed by nondissection chemical debridement. Twenty-two fresh human cadaveric arms were injected with India ink to stain the intraneural microcirculation foll...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/s1058-2746(99)90048-4
更新日期:1999-01-01 00:00:00
abstract:OBJECTIVE:Evidence for effective management of shoulder impingement is limited. The present study aimed to quantify the clinical, neurophysiological, and biomechanical effects of a scapular motor control retraining for young individuals with shoulder impingement signs. METHOD:Sixteen adults with shoulder impingement s...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2012.06.010
更新日期:2013-04-01 00:00:00
abstract:BACKGROUND:There is an increasing trend toward the use of reverse total shoulder arthroplasty (RTSA) over stemmed hemiarthroplasty (HA) for the management of proximal humeral fractures. There are limited data available comparing the revision rates for RTSA and HA in the setting of a fracture. The aim of this study was ...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2020.04.005
更新日期:2020-12-01 00:00:00
abstract::We dissected 80 shoulders from 44 fresh cadavers to define variants of the coracoacromial ligament and their relationship to rotator cuff degeneration. The shapes and the geometric data of the ligaments were investigated, and the rotator cuffs of the cadavers were evaluated macroscopically. Five main types of coracoac...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2007.05.015
更新日期:2008-01-01 00:00:00
abstract:BACKGROUND:Post-traumatic elbow arthrofibrosis (PEA) and its associated limitations to elbow range of motion (ROM) are a recognized consequence of trauma to the pediatric elbow. Closed manipulation under anesthesia (CMUA) of the elbow can be performed in pediatric patients as a nonoperative attempt to improve dysfuncti...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2019.10.004
更新日期:2020-02-01 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
abstract:BACKGROUND/HYPOTHESIS:Surgical management of displaced unstable proximal humerus fracture remains a challenge due to poor proximal bone quality and significant deforming forces. We hypothesized that the technique of application and mechanical properties of the proximal humeral locking plate would allow successful treat...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2009.08.008
更新日期:2010-06-01 00:00:00
abstract::Although rotator cuff repair is often successful at relieving pain, the repaired insertion site frequently fails. Mechanical properties of the repair improved when the shoulder was immobilized in an animal model, but joint stiffness and range of motion were not evaluated. The objective of this study was to measure rot...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2007.08.004
更新日期:2008-01-01 00:00:00
abstract:BACKGROUND:This study investigated the histopathology of the long head of biceps (LHB) tendon and correlated the findings with the macroscopic appearances of the LHB and the size of rotator cuff tears (RCTs) in patients with chronic RCTs. METHODS:We compared biopsy specimens from LHBs in 34 patients with chronic RCTs ...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2013.11.013
更新日期:2014-08-01 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::The purpose of this study was to describe the extramedullary humeral morphology in paired humeri to determine whether geometric differences exist from side to side in the same individual. The anatomic characteristics of 28 paired, dry cadaveric humeri were measured by use of an electromagnetic tracking system. Of the ...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2006.09.016
更新日期:2007-07-01 00:00:00
abstract::Incomplete functional recovery after rotator cuff surgery can be caused by rerupture or incomplete restoration of the contractile properties of the muscle-tendon-bone unit. We measured the passive tension generated in the supraspinatus musculotendinous unit at the time of repair of the supraspinatus tendon performed f...
journal_title:Journal of shoulder and elbow surgery
pub_type: 临床试验,杂志文章
doi:10.1016/s1058-2746(98)90030-1
更新日期:1998-07-01 00:00:00
abstract:BACKGROUND:Assessments used to measure outcomes associated with rotator cuff pathology and after repair are varied. This lack of standardization leads to difficulty drawing comparisons across studies. We hypothesize that this variability in patient-reported outcome measures and objective metrics used in rotator cuff st...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章,评审
doi:10.1016/j.jse.2015.08.007
更新日期:2015-12-01 00:00:00
abstract:BACKGROUND:Shoulder arthroscopy is a common orthopedic procedure typically performed on an outpatient basis. Occasionally, patients require an unplanned hospital admission. An understanding of the incidence and risk factors for admission after shoulder arthroscopy may assist surgeons in determining which patients may b...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2018.09.031
更新日期:2019-05-01 00:00:00
abstract:BACKGROUND:Studies have demonstrated mixed results after humeral head replacement (HHR) for osteoarthritis at short- and medium-term follow-up intervals. The purpose of this study was to investigate the long-term outcomes (minimum 10 years) of HHR for the treatment of osteoarthritis. METHODS:This study included 44 sho...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2017.10.017
更新日期:2018-05-01 00:00:00
abstract:BACKGROUND:Significantly displaced juvenile proximal humeral fractures (Neer-Horowitz type 3 and 4) usually require reduction and fixation. The most commonly used fixation methods are Kirschner wire (K-wire) pinning or retrograde elastic stable intramedullary nailing (ESIN). However, results comparing the long-term out...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2014.01.015
更新日期:2014-10-01 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:BACKGROUND:The objective measurement of dominant/nondominant arm use proportion in daily life may provide relevant information on healthy and pathologic arm behavior. This prospective case-control study explored the potential of such measurements as indicators of upper limb functional recovery after rotator cuff surger...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2015.01.017
更新日期:2015-09-01 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::An understanding of the morphology of the glenoid is important from the viewpoint of implant design and selection. This study describes the endosteal dimensions and shape of the glenoid and correlates these results with age, gender, and the presence of osteoarthritis. This study used 72 scapulae. Data were obtained fr...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2006.03.008
更新日期:2007-05-01 00:00:00
abstract:BACKGROUND:Heterotopic ossification (HO) is a well-recognized cause of limited flexion-extension, but it can also limit pronation-supination. There is a paucity of literature concerning restriction of pronation-supination due to HO. METHODS:We conducted a retrospective review of patients who had undergone elbow surger...
journal_title:Journal of shoulder and elbow surgery
pub_type: 杂志文章
doi:10.1016/j.jse.2018.10.029
更新日期:2019-07-01 00:00:00