Abstract:
OBJECTIVES:External fixator pins are thought to have improved pullout strength if inserted into both cortices and if pilot holes are drilled. We tested these hypotheses and investigated effects of osteoporosis and pin location on pin pullout strength. METHODS:Self-drilling external fixator pins were inserted using 4 techniques: 1) predrilled bicortically inserted, 2) not predrilled bicortically inserted, 3) not predrilled unicortically inserted, and 4) technique 2 with far cortex disengaged to test holding power of near cortex in isolation. Ninety-six samples were tested from four locations in 12 matched pairs of cadaveric femora [6 pairs osteoporotic (T ≤ -2.5), six pairs nonosteoporotic (T > -2.5)]. Pullout force was tested on materials testing system until failure of pin-bone interface. RESULTS:Bicortical pin placement and location within femur had substantial effects on the holding power of the pins. Osteoporosis had statistically significant effect but with smaller effect size (P = 0.05). No significant difference in holding power was observed between predrilling and no predrilling techniques (P = 0.27). We observed only a trend toward "stripping effect" in near cortex with technique 4. Bicortical placement rendered 69% greater holding power than unicortical. Proximal placement rendered 56% greater holding power than distal. Osteoporotic samples had 15% less holding power than nonosteoporotic samples. CONCLUSIONS:Single-cortex pin placement, osteoporotic bone, and more distal pin location decreased pin pullout strength. We did not observe a significant mechanical advantage of predrilling for modern external fixator pins. The near cortex of a pin inserted into 2 cortices without predrilling did not exhibit substantial stripping effect.
journal_name
J Orthop Traumajournal_title
Journal of orthopaedic traumaauthors
Oliphant BW,Kim H,Osgood GM,Golden RD,Hawks MA,Hsieh AH,OʼToole RVdoi
10.1097/BOT.0b013e3182511ed7subject
Has Abstractpub_date
2013-02-01 00:00:00pages
e25-30issue
2eissn
0890-5339issn
1531-2291journal_volume
27pub_type
杂志文章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::The conventional qualitative techniques of manual manipulation and plain radiography do not give a quantifiable measurement of healing. With internal fixation, manual manipulation is not usually possible, and conventional radiographs may not give much useful information, particularly if only a small amount of callus i...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-199611000-00010
更新日期:1996-01-01 00:00:00
abstract::Fifteen patients with fractures of the extremities and associated arterial injuries treated from 1976 to 1987 were retrospectively analyzed. Complete ischemia was present in only two cases; in four cases with partial ischemia, the vascular injury presented late after 12 h-14 days. All limbs could be preserved, but com...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-199103000-00005
更新日期:1991-01-01 00:00:00
abstract::Studies in several countries have indicated that there is likely to be a dramatic increase in the number of hip fractures in the early part of the 21st century. At a time when health care costs are coming under close scrutiny internationally, the added financial burden of the increasing number of fractures is of conce...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:
更新日期:1993-01-01 00:00:00
abstract:OBJECTIVE:To determine whether using nothing stronger than codeine and tramadol provides adequate pain alleviation in people recovering from fixation of a fracture of the femur or tibia shaft. DESIGN:Retrospective case series. SETTING:Level 1 trauma center in the United States. PATIENTS:All adult patients from Octob...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000001683
更新日期:2020-02-01 00:00:00
abstract:OBJECTIVE:To observe the results and describe the technique of closed reduction and placement of a two-pin supra-acetabular external fixator, followed by immediate weight bearing, in the treatment of displaced vertically stable lateral compression pelvic fractures. DESIGN:Prospective, consecutive. SETTING:Regional tr...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:
更新日期:2006-01-01 00:00:00
abstract::Fracture healing is a unique multifaceted process requiring the presence of cells, molecular mediators, and angiogenic factors. The state of inflammation dominates the initial phase, but the ideal magnitude and duration of the process for an optimal outcome remains obscure. Biological response modifiers, such as plate...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章,评审
doi:10.1097/BOT.0000000000000465
更新日期:2015-12-01 00:00:00
abstract:OBJECTIVES:Noncompliance with postoperative follow-up visits remains a common problem in orthopaedic trauma. The aim of this study was to identify risk factors for loss of follow-up after orthopaedic trauma. DESIGN:Retrospective review. SETTING:Urban level 1 academic trauma center. PATIENTS:A total of 307 (226 men/8...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000000346
更新日期:2015-11-01 00:00:00
abstract:OBJECTIVES:Performing an examination under general anesthesia (EUA) using dynamic stress fluoroscopy of patients with posterior wall acetabular fractures has been used as a tool to determine hip stability and the need for surgical intervention. The purpose of this study was to further evaluate the effectiveness of this...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000000308
更新日期:2015-08-01 00:00:00
abstract:PURPOSE:Radial head fractures are some of the most common elbow fractures. Fractures with 3 or more fracture fragments have been shown to have worse outcomes when treated with open reduction and internal fixation (ORIF). Radial head replacement offers an alternative treatment for those more comminuted radial head fract...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000001537
更新日期:2019-08-01 00:00:00
abstract::The development of a strong trauma program is clearly one of the most important facets of successful business development. Several recent publications have demonstrated that well run trauma services can generate significant profits for both the hospital and the surgeons involved. There are many aspects to this task th...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000000142
更新日期:2014-07-01 00:00:00
abstract:OBJECTIVE:The aims of this study were to analyze a large national trauma database to determine the incidence of, risk factors for, and outcomes after a fasciotomy of the lower leg or forearm after fracture. METHODS:Data from the National Trauma Data Bank for the years 2004-2016 were analyzed, and we identified 301,351...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000001702
更新日期:2020-05-01 00:00:00
abstract::The use of Ender nails for the treatment of femoral shaft fractures has been described as technically easier and less time consuming than current intramedullary nailing techniques. We reviewed our results with unlocked Ender nails in 26 stable and 17 unstable fracture patterns an average of 3-4 years after injury. Bec...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-199209000-00008
更新日期:1992-01-01 00:00:00
abstract:OBJECTIVES:Tibia fractures are the most common long bone fracture. Criteria for closed and open reduction are based on the amount of fracture shortening, angulation, and rotation, with high success rates achieved if acceptable alignment is maintained. However, there exists limited data available regarding the long-term...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000000603
更新日期:2016-09-01 00:00:00
abstract:BACKGROUND:Calcaneal fractures comprise 1 to 2 percent of all fractures. Approximately 75% of calcaneal fractures are intra-articular. The management of intra-articular calcaneal fractures remains controversial. Nonoperative treatment options include elevation, ice, early mobilization, and cyclic compression of the pla...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章,评审
doi:
更新日期:2005-05-01 00:00:00
abstract::Although there is little doubt that arthroplasty of one form or another is appropriate treatment for many patients with a displaced femoral neck fracture, there is ongoing controversy about the relative merits of different types of arthroplasty among specific groups of patients. In particular, total hip arthroplasty i...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章,评审
doi:10.1097/BOT.0b013e3181761490
更新日期:2009-07-01 00:00:00
abstract:OBJECTIVE:To study the effect of tourniquet control on intramedullary reaming. DESIGN:An experimental prospective nonsurvival animal study was performed using 5 mongrel dogs. A pneumatic tourniquet was randomized to either the right or left hind limb. Tibial intramedullary reaming was performed with progressively larg...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-200411000-00004
更新日期:2004-11-01 00:00:00
abstract:OBJECTIVES:To investigate the clinical utility of additional axillary or Velpeau views in evaluating potential shoulder trauma after a standard radiograph series of anteroposterior, Grashey, and/or trans-scapular views. DESIGN:Retrospective study. SETTING:Level I academic medical center. PATIENTS:All patients in a 1...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000001760
更新日期:2020-08-01 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::Several clinical trials have examined the safety and efficacy of recombinant human bone morphogenic protein-7 (rhBMP-7) for osseous repair in clinical trauma. This article summarizes the results obtained from three recent clinical trials, which suggest that rhBMP-7 is useful in the treatment of tibial nonunion, long b...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-200511101-00008
更新日期:2005-11-01 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:Iliosacral screw pathways in the first (S1) and second (S2) sacral segments are commonly used for adult pelvic ring stabilization. We hypothesize that radiographically "safe" pathways exist in pediatric patients. SETTING:Academic level I Trauma Center. PATIENTS:All patients between ages 2 and 16 years with...
journal_title:Journal of orthopaedic trauma
pub_type: 临床试验,杂志文章
doi:10.1097/BOT.0000000000000421
更新日期:2016-01-01 00:00:00
abstract:OBJECTIVE:To determine whether knee arthrodesis with simultaneous lengthening using the Ilizarov method for a nonreconstructable knee joint with bone loss and infection is a successful salvage procedure. DESIGN:Retrospective review of patients. SETTING:University hospital-based orthopaedic practice. PATIENTS:From 19...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-200503000-00004
更新日期:2005-03-01 00:00:00
abstract::Antegrade intramedullary nails are an established, effective method of fixation for humeral shaft fractures. One significant limitation of this technique is chronic postoperative shoulder pain, which is likely related to the standard approach that involves splitting the rotator cuff to gain access to the nail starting...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000000684
更新日期:2017-02-01 00:00:00
abstract:OBJECTIVE:To measure the dimensions of the narrowest portion of the sacral ala for safe insertion of iliosacral lag screws. DESIGN:Computed tomography (CT) model. SETTING:Level One trauma center. PATIENTS:Thirteen adult patients underwent pelvic CT imaging. MAIN OUTCOME MEASURE:Axial CT scans of intact pelves were ...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-200001000-00007
更新日期:2000-01-01 00:00:00
abstract::Compression screws, Ender rods, and Zickel nails were evaluated mechanically to determine their resulting stability in the fixation of experimental subtrochanteric femur osteotomies. Twenty-five pairs of human cadaver femurs were used. Experimental osteotomies were created and a random member of each pair was fixed wi...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-199003000-00010
更新日期:1990-01-01 00:00:00
abstract:OBJECTIVES:We evaluated the economic aspects of an orthopaedic trauma section at a regional Level I, semi-academic community hospital. This study analyzes the economics of a dedicated hospital-based orthopaedic trauma program. METHODS:Institutional financial reports were analyzed for 2 time periods. In the pre-program...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e31816bae67
更新日期:2008-04-01 00:00:00
abstract:OBJECTIVE:To describe in utero radiation exposures in pregnant patients undergoing acetabular fracture repair. DESIGN:Retrospective case series. SETTING:University-affiliated regional trauma center. PATIENT/PARTICIPANTS:Eight pregnant patients with acetabular fractures treated over a 6-year period. There were an add...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e3181847a42
更新日期:2008-09-01 00:00:00
abstract:OBJECTIVE:To determine the relative amount of fixation of self-reinforced poly-L-lactide (SR-PLLA) rods and Kirschner wires in bovine cancellous bone by comparing their pullout strength DESIGN:An in vitro laboratory study was performed using bovine femurs. Ten two-millimeter-diameter pins of each type were inserted in...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-200108000-00008
更新日期:2001-08-01 00:00:00
abstract::Obtaining optimal results in the treatment of extraarticular distal tibia fractures can be challenging. Plate and screw and intramedullary fixation have proven to be effective treatments, but are associated with significant complication rates when used for open fractures and patient with severe medical comorbidities. ...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000000694
更新日期:2016-11-01 00:00:00