Abstract:
OBJECTIVES:Lateral locked plating for proximal tibial fractures with metaphyseal disruption provides a biomechanically stable and biologically favorable alternative to conventional medial/lateral plate fixation. New polyaxial screw technology incorporates expanding screw bushings, allowing variable angle screw placement, while providing angular stability. We hypothesize that polyaxial locking plates will exhibit comparable stiffness, strength to failure, and resistance to plastic deformation to conventional locking plates in a proximal tibial gap model. METHODS:We stabilized extra-articular metaphyseal gap osteotomies in synthetic composite tibiae with dual medial and lateral plating, Less Invasive Stabilization System (LISS) plates, 4.5-mm proximal tibial lateral locking plates with (LP+) and without (LP-) angled screws, and 4.5-mm polyaxial locking plates with (PA+) and without (PA-) angled screws. All were tested with cyclic, ramped, and axial loading to failure. RESULTS:No plates demonstrated screw failure before plate failure. Dual-plate constructs did not fail. All lateral plates failed at the osteotomy. LP- failed at low load. PA+ was significantly stiffer (165 +/- 17 N/mm) with greater load to failure (711 +/- 23 N) than all other constructs (PA-: 56 +/- 6 N/mm, 617 +/- 33 N; LP+: 137 +/- 23 N/mm, 488 +/- 39 N; LISS: 76 +/- 5 N/mm, 656 +/- 39 N). PA+ had significantly less plastic deformation (12.1 +/- 0.8 mm) than LP+ (13.4 +/- 3.7 mm), but more than PA- (5.8 +/- 1.2 mm) and LISS (3.9 +/- 0.6 mm). PA- did not differ significantly from LISS in any parameter. CONCLUSIONS:This study demonstrates that this unique polyaxial locking plate mechanism, when tested in various constructs, exhibits similar biomechanical performance regarding stiffness, strength to failure, and resistance to plastic deformation when compared with uniaxial locking plates. The polyaxial locking plate with an angled screw was stiffest and had the greatest load to failure. The polyaxial locking plate alone tested similar to the LISS. In addition, the benefit of the angled screw for biomechanical stability is demonstrated.
journal_name
J Orthop Traumajournal_title
Journal of orthopaedic traumaauthors
Cullen AB,Curtiss S,Lee MAdoi
10.1097/QAI.0b013e3181a25368subject
Has Abstractpub_date
2009-08-01 00:00:00pages
507-13issue
7eissn
0890-5339issn
1531-2291pii
00005131-200908000-00004journal_volume
23pub_type
杂志文章abstract::Over a 15-month period, 41 open grade I-IIIA tibia fractures were treated with unreamed interlocking nails. A protocol previously established by the authors to enhance fracture union was followed. The purpose of the study was to determine if union rate for the comminuted statically locked fracture could be reduced thr...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-199504000-00005
更新日期:1995-04-01 00:00:00
abstract::A retrospective review of 39 fractures of the femur in 37 patients caused by low- and mid-velocity handgun missiles treated with static interlocking nailing within 18 h of injury was conducted to evaluate the efficacy, safety, and cost savings of immediate intramedullary nailing in these injuries. Patients were follow...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-199404000-00010
更新日期:1994-01-01 00:00:00
abstract:OBJECTIVES:Hospitals and providers that accept transfer patients risk lower ratings on publically reported quality measures that are inadequately adjusted for infirmity and complexity. We compared the outcomes of transferred patients and nontransferred patients after treatment of a hip fracture and sought to determine ...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e31821146b1
更新日期:2011-11-01 00:00:00
abstract:OBJECTIVE:Risk for bleeding complications during and after early hip fracture surgery for patients taking clopidogrel and other anticoagulants have not been defined. The purpose of this study is to assess the perioperative bleeding risks and clinical outcome after early hip fracture surgery performed on patients taking...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e318240d70f
更新日期:2012-10-01 00:00:00
abstract::Marginal impaction of the acetabulum is typically accessible through fracture planes specific to the nature of the injury. Infrequently, however, incarcerated marginal impaction or free osteochondral fragments are not accessible through these existing fracture planes. As such, alternative methods to access these artic...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000000759
更新日期:2017-05-01 00:00:00
abstract:OBJECTIVE:The treatment of some pelvic injuries has evolved recently to include the use of a subcutaneous anterior pelvic fixator (INFIX). We present 8 cases of femoral nerve palsy in 6 patients after application of an INFIX to highlight this potentially devastating complication to pelvic surgeons using this technique ...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000000193
更新日期:2015-03-01 00:00:00
abstract:OBJECTIVE:To study the activity and incidence of knee pain after sustaining an isolated tibia fracture treated with an infrapatellar intramedullary nail at 1 year. DESIGN:Retrospective review of prospective cohort. SETTING:Multicenter Academic and Community hospitals. PATIENTS:Four hundred thirty-seven patients with...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章,多中心研究
doi:10.1097/BOT.0000000000000475
更新日期:2016-03-01 00:00:00
abstract:OBJECTIVES:To compare open reduction and internal fixation (ORIF) and nonsurgical treatment outcomes in displaced midshaft clavicle fractures. DATA SOURCES:PubMed, MEDLINE, EMBASE, Web of Science, Cochrane Library, and ClinicalTrials.gov were searched in September 2017. STUDY SELECTION:Inclusion criteria were randomi...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章,meta分析
doi:10.1097/BOT.0000000000001174
更新日期:2018-07-01 00:00:00
abstract:OBJECTIVE:To determine whether multiple approaches pose an increased risk to fracture healing when compared with a standard single approach in the treatment of pilon (OTA 43C) fractures. DESIGN:Retrospective review of a prospective database. SETTING:Level I academic trauma center and level II community trauma center....
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000000728
更新日期:2017-02-01 00:00:00
abstract:OBJECTIVES:To radiographically demonstrate the upper sacral nerve root tunnel (USNRT) in both cadaveric specimens and a clinical cohort and to quantify its clinical relevance. SETTING:Level 1 trauma center and anatomy laboratory. PATIENTS AND PARTICIPANTS:Eleven cadaveric pelves and 23 consecutive patients who underw...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e3181a2e419
更新日期:2009-05-01 00:00:00
abstract:INTRODUCTION:External rotation and gravity stress radiographs have been described to distinguish stable supination-external rotation-II (SER-II) ankle fractures from unstable SER-IV fractures. It has been previously shown that both external rotation and gravity stress views are equivalent in their ability to diagnose d...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000000817
更新日期:2017-05-01 00:00:00
abstract:OBJECTIVES:To determine the rates of infection in low-energy gunshot wounds (GSWs) to the extremity. DESIGN:Retrospective review. SETTING:Level I trauma center. PATIENTS/PARTICIPANTS:Patients (N = 140) with at least 90-day follow-up for extremity-only low-energy GSW injuries from 2010-2014 were retrospectively revie...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000000827
更新日期:2017-06-01 00:00:00
abstract:OBJECTIVE:This study was conducted to categorize barefoot stubbing injuries to the great toe in children by injury mechanism to differentiate benign stubbing injuries from more complex injuries necessitating surgery. DESIGN:Prospective clinical series of consecutively treated patients. SETTING:Tertiary university hos...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e31828e5d39
更新日期:2013-11-01 00:00:00
abstract:OBJECTIVE:To evaluate the outcomes of a single-stage surgical protocol to treat a presumed aseptic long-bone nonunion with positive intraoperative cultures obtained at the time of surgery. DESIGN:Retrospective comparative series. SETTING:Orthopaedic specialty hospital. PATIENTS AND METHODS:We retrospectively identif...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000001084
更新日期:2018-02-01 00:00:00
abstract:OBJECTIVES:Fellowship-trained orthopaedic traumatologists are presumably taught skill sets leading to "best practice" outcomes and more efficient use of hospital resources. This should result in more favorable economic opportunities when compared with general orthopaedic surgeons (GOSs) providing similar clinical servi...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e3182a59d6b
更新日期:2014-05-01 00:00:00
abstract::Successful treatment of periprosthetic femur fractures, like all fractures, requires careful attention to understand the fracture pattern nuances, identifying and executing a rational treatment approach, and providing an appropriate postoperative recovery protocol. Unlike most other fractures, modification of standard...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章,评审
doi:10.1097/BOT.0000000000000282
更新日期:2015-03-01 00:00:00
abstract::A rare case of a complete fracture-separation of the proximal radial epiphysis is described in a pediatric patient. A further complicating factor is the delay in diagnosis that may worsen prognosis. An emphasis on early detection by physical examination and imaging studies, as well as consideration of treatment option...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章,评审
doi:10.1097/00005131-199506000-00013
更新日期:1995-06-01 00:00:00
abstract:PURPOSE:The purpose of this OTA-approved pilot study was to compare the clinical and functional outcomes of the knee joint after infrapatellar (IP) versus suprapatellar (SP) tibial nail insertion. DESIGN:Prospective, randomized. SETTING:Level I trauma center. METHODS:After institutional review board approval, skelet...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章,随机对照试验
doi:10.1097/BOT.0000000000000499
更新日期:2016-03-01 00:00:00
abstract:OBJECTIVE:To report the results from functional bracing of isolated ulnar shaft fractures. DESIGN:Retrospective review. SETTING:Two university hospitals. PATIENTS:Isolated ulnar shaft fractures in 444 patients were stabilized in functional braces that permitted full range of motion of all joints. INTERVENTION:Prefa...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-199808000-00009
更新日期:1998-08-01 00:00:00
abstract::A modified freehand method using a cannulated drill bit for the insertion of distal locking screws for interlocking intramedullary nails is described. It should be useful to introduce surgeons to interlocking and to aid those who are not comfortable with the freehand method. ...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-199306000-00009
更新日期:1993-01-01 00:00:00
abstract:OBJECTIVES:To assess mechanism of injury as a clinical course predictor in patients with complete anterior and posterior pelvic ring disruptions [innominosacral dissociation (ISD)]. DESIGN:Retrospective review of radiographs and medical data. SETTING:R Adams Cowley Shock Trauma Center, Baltimore, Maryland, statewide ...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-199702000-00002
更新日期:1997-02-01 00:00:00
abstract:OBJECTIVES:Posttraumatic invasive fungal infections threaten critically injured combat-related injuries and require a combination of extensive surgery and systemic antifungal therapy, along with topical antimicrobials used adjunctively to control the infection. We evaluated the in vitro activity of topical agents in va...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e3182830bf9
更新日期:2013-08-01 00:00:00
abstract:OBJECTIVES:Controversy exists regarding optimum management of lateral compression type 1 (LC1) pelvic ring injuries (OTA type 61-B2.1), particularly in patients with complete sacral fractures. We hypothesized that nonoperative treatment would result in acceptable functional outcomes. DESIGN:Database review. SETTING:L...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000000130
更新日期:2014-12-01 00:00:00
abstract::Traumatic avulsion of the triceps brachii tendon is a rare injury. Clinical diagnosis shows that elbow extension against gravity is not possible. Radiologically, the lateral elbow may show the presence of flecks of avulsed osseous material from the olecranon ("flake sign"), which is almost pathognomonic of this lesion...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-200204000-00010
更新日期:2002-04-01 00:00:00
abstract::Long-bone deformity may be significantly symptomatic. A uniplanar corrective osteotomy uses a single cut to correct coronal, sagittal, and axial plane deformity simultaneously. Careful preoperative planning is required in addition to a comprehensive understanding of the magnitude and plane of the true deformity of the...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000001519
更新日期:2019-08-01 00:00:00
abstract:OBJECTIVE:This review aims to summarize current knowledge regarding the underlying patho-mechanisms of delayed fracture healing in polytraumatized patients. DATA SOURCES AND STUDY SELECTION:The following search terms were used: "fracture", "hemorrhage," "chest trauma," "inflammation," "inflammatory response," "fractur...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章,meta分析,评审
doi:10.1097/BOT.0000000000000489
更新日期:2016-03-01 00:00:00
abstract:OBJECTIVE:To evaluate whether scientific abstracts selected for podium presentation at the Orthopaedic Trauma Association (OTA) Annual Meeting differ based on the program committee size and/or the proportion of abstracts each committee member evaluates. METHODS:Abstract scores from the Orthopaedic Trauma Association p...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000001108
更新日期:2018-05-01 00:00:00
abstract:SUMMARY:In this study, we present a novel technique for reduction and fixation of complex, unstable proximal humerus fractures with diaphyseal extension with the assistance of fibula allograft. We treated 14 patients using this technique since 2009 and found that it improves the reduction and enhances fixation while ma...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e31829a346d
更新日期:2014-03-01 00:00:00
abstract::Since the original description of osteitis deformans, the treatment of femoral fractures occurring in this disease process has been difficult. A retrospective study of 35 fractures treated over an 8-year period was undertaken to identify the factors that influenced the results. The fractures were classified according ...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-198912000-00011
更新日期:1989-01-01 00:00:00
abstract:OBJECTIVE:The purpose of this prospective cohort study was to determine if a new patella fracture fixation construct resulted in improved outcomes compared with traditional tension band techniques. DESIGN:Comparative cohort study. SETTING:Academic level I trauma center. PATIENTS/PARTICIPANTS:Patients with isolated, ...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000000787
更新日期:2017-05-01 00:00:00