Abstract:
OBJECTIVE:The purpose of the present study was to compare the biomechanical stability of C1 and C2 vertebrae after treatment of ligamentous instability by either modified Brooks posterior wiring (MB) or transarticular screw (TAS) techniques. We hypothesized that the TAS technique would be more stable because of direct fixation through the facet joints. STUDY DESIGN:We studied the in vitro stability (arthrodesis) of TAS fixation of C1 and C2 versus that of MB. TAS fixation involves placing screws across the facets from posteriorly at C2 to the anterior surface of C1, plus a bone graft and posterior wiring of C1 and C2. METHODS:Cervical spines from nine individuals with an average age of sixty-two years (range 51 to 71 years) were harvested from cadavers (six male, three female). C1 and the segment from C2 to C5 were potted to allow motion only at the C1-C2 articulation. The specimens were destabilized by cutting the transverse ligament on both sides of the odontoid and the tectorial membrane between C1 and C2. The MB and TAS techniques were performed by methods similar to those described in the literature. The stiffness of the C1-C2 articulation of each specimen was tested under rotation, lateral bending, flexion, and anterior translation in random order. Intact and destabilized specimens fixed with either MB or TAS were tested in sequence. RESULTS:Significantly higher stiffness values in the elastic zone were obtained with the TAS technique than with the MB technique for all modes of testing (p < 0.002, t test). Values for the neutral zone (the region where minimal loads produce displacement) were not significantly different between the MB and TAS techniques (p > 0.1, t test). CONCLUSION:We conclude that stability is significantly enhanced by use of the TAS construct for treatment of ligamentous instability at the atlantoaxial joint for all motions tested in the present study.
journal_name
J Orthop Traumajournal_title
Journal of orthopaedic traumaauthors
Mitchell TC,Sadasivan KK,Ogden AL,Mayeux RH,Mukherjee DP,Albright JAdoi
10.1097/00005131-199909000-00004subject
Has Abstractpub_date
1999-09-01 00:00:00pages
483-9issue
7eissn
0890-5339issn
1531-2291journal_volume
13pub_type
杂志文章abstract:OBJECTIVES:To evaluate the effect of both high-pressure pulsatile lavage and bulb syringe irrigation on the biomechanical parameters of fracture healing using an in vivo open noncontaminated diaphyseal femoral fracture model in rats. BACKGROUND:The utility of high-pressure pulsatile lavage irrigation on soft tissue de...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-200207000-00008
更新日期:2002-07-01 00:00:00
abstract:OBJECTIVES:To evaluate the role of a modified Pauwels' intertrochanteric osteotomy (MPIO) in neglected femoral neck fractures in children. DESIGN:Prospective study with retrospective analysis. SETTING:Tertiary care Postgraduate Institute of Medical Sciences. PATIENTS:Ten children (8 males, 2 females) with an average...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e31804cfdad
更新日期:2007-04-01 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:OBJECTIVES:The pathomorphology of posttraumatic acetabular dysplasia differs fundamentally from the classic developmental dysplasia of the adolescent. The aim of this report is to qualify and quantify the pathomorphologic characteristics of the posttraumatic acetabular dysplasia and to define the requirements for adequ...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-200009000-00004
更新日期:2000-09-01 00:00:00
abstract::The pull-out strength of two types of bone staples (A, Techmedica; B, Richards) was evaluated in a canine model and compared with a control of 6.5 mm cancellous bone screw (Synthes). Fifteen adult mongrel dogs were divided into three groups of five animals each. The implants were placed in the lateral femoral condyle ...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-198701040-00009
更新日期:1987-01-01 00:00:00
abstract:SUMMARY:Convergent type radioulnar translocation is an extremely rare form of injury occurring in a growing child. We report a case of convergent radioulnar translocation along with a radial head fracture in a young child. Open reduction of the elbow and internal fixation of the radial head fragment helped in achieving...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章,评审
doi:10.1097/BOT.0b013e31821d7fd5
更新日期:2012-04-01 00:00:00
abstract:OBJECTIVES:We investigated the role of negative pressure therapy (NPT) in postoperative primary wound treatment and closure. To date, extensive evidence exists demonstrating the benefit of negative pressure dressings in the treatment of open wounds; our experiment tested the hypothesis that negative pressure dressings ...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e318211363a
更新日期:2011-12-01 00:00:00
abstract:OBJECTIVES:To evaluate use of intraoperative fluoroscopy during acetabular surgery to determine fracture reduction and accurate placement of screws. DESIGN:Retrospective. SETTING:Level I trauma center. PARTICIPANTS:Thirty patients with thirty-two acetabular fractures. INTERVENTION:Patients were evaluated with fluor...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-199908000-00004
更新日期:1999-08-01 00:00:00
abstract::In the current health care environment, cost containment is more important than ever. Most physicians currently are unaware of the cost of operating room supplies. A large amount of waste occurs secondary to lack of knowledge and absence of physician incentives for cost saving. Many of the decisions for supply use can...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000000718
更新日期:2016-12-01 00:00:00
abstract::A study was undertaken to review the results of donor site morbidity of cancellous bone grafts obtained from the proximal tibial metaphysis. Two hundred six patients who underwent 230 proximal tibial bone graft harvestings were reviewed. Patients with lower-extremity fractures or nonunions who required cancellous bone...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-199112000-00014
更新日期:1991-01-01 00:00:00
abstract::A unique case of coexistent intertrochanteric and subcapital fractures of the hip is presented. A review of the literature found only one previous report of the simultaneous occurrence of these fractures. Closed reduction with in situ pinning was performed. Other treatment alternatives are reviewed and discussed. ...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-199304000-00008
更新日期:1993-01-01 00:00:00
abstract::With the increase in demand for total hip and knee arthroplasty, the orthopaedic community has seen a dramatic increase in periprosthetic fractures. Given the high morbidity and mortality associated with these fractures, the orthopaedic surgeon needs to be prepared to deal with this difficult problem. The purpose of t...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e31821b8c3b
更新日期:2011-06-01 00:00:00
abstract::The benefits of being organized when starting one's career are countless and worth the time and effort in developing an effective and efficient practice. Established protocols, good habits, and methodical communication that include all members of the team will help create a system that keeps all components of one's pr...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e3182a52344
更新日期:2013-10-01 00:00:00
abstract::Ipsilateral elbow and forearm fractures are quite rare in children. We present a Monteggia lesion with ipsilateral supracondylar humerus fracture in a 13-year-old girl. Through early surgical management, a successful result was achieved. We believe that, to minimize any initial or subsequent complications in such frac...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-199901000-00015
更新日期:1999-01-01 00:00:00
abstract::Segmental defects of the tibia present a challenging problem. This report demonstrates the use of an ipsilateral vascularized fibula transfer (IVFT) in a patient with a 15 cm tibial bone defect following tumor resection. Bone union was achieved within 6 months, and 8 years after the surgery the patient has full knee f...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e3180330927
更新日期:2007-03-01 00:00:00
abstract::A modified anterior approach to the distal femur is presented. The approach allows surgical exposure of the entire articular surface of the distal femur. The quadriceps muscle bellies are spared during the approach. The skin incision used will not interfere with subsequent total knee arthroplasty, if posttraumatic art...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-199902000-00012
更新日期:1999-02-01 00:00:00
abstract::Operative management of patella fractures continues to be associated with poor outcomes and high reoperation rates. Traditionally, tension band fixation has been used for more simple fracture patterns; however, fixation remains a challenge particularly for comminuted fractures. More recently, various types of plate fi...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000000908
更新日期:2017-08-01 00:00:00
abstract::Tubular poly(L-lactide) membranes with a pore size of 5-15 microns and a molecular weight of 70,000 Daltons were implanted into 24 New Zealand skeletally mature rabbits to cover 10-mm mid-diaphyseal defects of the radius of the forelimb. An identical defect on the contralateral limb was not treated with the membrane a...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-199604000-00006
更新日期:1996-01-01 00:00:00
abstract::Rotational ankle fractures are incredibly common, resulting in a wide spectrum of bony and ligamentous injury patterns. After open reduction of an ankle fracture, the treating surgeon must always evaluate syndesmotic stability. If the syndesmosis is determined to be unstable, a reduction of the distal tibiofibular joi...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章,评审
doi:10.1097/BOT.0000000000000588
更新日期:2016-08-01 00:00:00
abstract:OBJECTIVES:The purpose of this study was to evaluate forearm rotation after volar plating of the distal radius fractures with and without pronator quadratus repair. DESIGN:This was an institutional review board-approved retrospective review of prospectively collected data. SETTING:The study was conducted at an Academ...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e3182539333
更新日期:2013-03-01 00:00:00
abstract::A prospective randomized study of severe open tibial fractures (Type II and III) was performed. Individual fractures were randomized to treatment groups according to initial antibiotic therapy: One consisted of a first-generation cephalosporin, and the other consisted of a third-generation cephalosporin. Initial antib...
journal_title:Journal of orthopaedic trauma
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00005131-198802030-00001
更新日期:1988-01-01 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:OBJECTIVE:To report our experience with computed tomography (CT) scans to detect traumatic arthrotomies of the knee (TAK) joint based on the presence of intra-articular air. DESIGN:Retrospective review. SETTING:Level I trauma center. PATIENTS:Sixty-two consecutive patients (63 knees) underwent a CT scan of the knee ...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e31828219bc
更新日期:2013-09-01 00:00:00
abstract:OBJECTIVES:Because locked plates as a neutralization device for lag screw fracture fixation have different biomechanics than that of unlocked plates, we investigated how this would affect lag screw load at the fracture site. The purpose of this study was to assess the load at a fracture site compressed with a lag screw...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e31823b3dd1
更新日期:2012-09-01 00:00:00
abstract:OBJECTIVES:To develop an accurate machine learning (ML) predictive model incorporating patient, fracture, and trauma characteristics to identify individual patients at risk of an (occult) PMF. METHODS:Databases of 2 studies including patients with TSFs from 2 Level 1 trauma centers were combined for analysis. Using te...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000001663
更新日期:2020-03-01 00:00:00
abstract::The treatment of war wounds poses many unique challenges to all healthcare providers (surgeons, flight medics, nurses, etc.), whether they are located at the far forward trauma hospitals located in or near areas of conflict, at regional hospitals such as Landstuhl Medical Center in Germany, or the larger military hosp...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章,评审
doi:10.1097/BOT.0b013e318188e27d
更新日期:2008-11-01 00:00:00
abstract::This paper presents a modified surgical technique for interlocked intramedullary stabilization of tibia fractures. An external distractor is used to achieve an indirect fracture reduction on a fluoroscopy table. This method avoids the potential traction complications associated with conventional fracture tables. The f...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:
更新日期:1992-01-01 00:00:00
abstract::The proximal femur nail antirotation represents a new generation of intramedullary nailing devices for fixation of stable and unstable trochanteric fractures of the proximal femur. We report 3 cases of postoperative perforation of the helical blade through the femoral head into the hip joint without any signs of rotat...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e3181893b1b
更新日期:2008-11-01 00:00:00
abstract:OBJECTIVE:To characterize the presentation and outcomes of calcaneal avulsion fractures. DESIGN:Case series. SETTING:Two ACS Level I trauma centers. PATIENTS/PARTICIPANTS:Forty-seven calcaneal avulsion fractures isolated from a cohort of 1365 calcaneus fractures treated over a 17-year period. MAIN OUTCOME MEASUREME...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章,多中心研究
doi:10.1097/BOT.0000000000001582
更新日期:2019-11-01 00:00:00
abstract::The Galeazzi fracture-dislocation of the forearm consists of a transverse or short oblique fracture of the radius at the junction of the middle and distal thirds with an associated subluxation or dislocation of the distal radioulnar joint. Anatomic reduction with rigid internal fixation of the radius typically produce...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-198903010-00015
更新日期:1989-01-01 00:00:00