Abstract:
OBJECTIVE:To examine the impact of number and position of locking screws in the diaphyseal portion of an osteoporotic distal femoral fracture model with hybrid fixation. METHODS:Four groups containing 5 osteoporotic bone models were used with varying combinations of diaphyseal screw fixation: 4 nonlocking screws (control); 1 locking screw adjacent to the osteotomy and 3 nonlocking screws; 1 locking screw in the most proximal screw hole of the plate and 3 nonlocking screws; and 2 locking screws at opposite ends of the diaphyseal fixation with 2 nonlocking screws in between. Fixation in the distal articular segment was identical in all constructs. Testing was performed for 50,000 cycles at 2 Hz using simultaneous axial compression (700 N) and bidirectional torque (±5 Nm) applied along the long axis of the bone. All screws were inserted with 4 Nm of torque. RESULTS:The extraction torque for nonlocking screws in those specimens that had a locking screw nearest the osteotomy was significantly greater than those that did not (P = 0.037). In addition, the 10 constructs with a locking screw nearest the osteotomy had no failures compared with 5 of 10 failures in those without a locking screw in this position (P = 0.033). CONCLUSIONS:The placement of a locking screw adjacent to the osteotomy was more beneficial in protecting against failure and maintaining the extraction torque of neighboring proximal nonlocking screws. No benefit in adjacent screw extraction torque was seen with a locking screw proximal in the diaphysis. Two locking screws at opposite ends of the diaphyseal fixation were not superior to a single locking screw adjacent to the osteotomy in failure rates or screw extraction torque.
journal_name
J Orthop Traumajournal_title
Journal of orthopaedic traumaauthors
Dalstrom DJ,Nelles DB,Patel V,Goswami T,Markert RJ,Prayson MJdoi
10.1097/BOT.0b013e318238c086subject
Has Abstractpub_date
2012-09-01 00:00:00pages
523-7issue
9eissn
0890-5339issn
1531-2291journal_volume
26pub_type
杂志文章abstract::The technique of lengthening over an antegrade nail is used widely for distraction osteogenesis of the femur. Most reported complications of this technique are related to Schanz pins. We hypothesized that reducing the number of Schanz pins would enable successful distraction with fewer complications. To this purpose, ...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e31824a3e66
更新日期:2013-01-01 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:To report on the radiographic and clinical outcome of symphyseal plating techniques, with specific attention to the incidence of implant failure, reoperation secondary to implant complication, and ability to maintain reduction of the pelvic ring. DESIGN:Retrospective chart and radiographic review. SETTING:...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e31817e49ee
更新日期:2008-07-01 00:00:00
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 t...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e3182511ed7
更新日期:2013-02-01 00:00:00
abstract:OBJECTIVES:Evaluate the effect of the COVID-19 pandemic and the "shelter-in-place" order on orthopaedic trauma presenting to a community level II trauma center. It is hypothesized the overall number of orthopaedic trauma encounters (OTE), the number of OTEs related to both high and low severity injuries, as well as the...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000001860
更新日期:2020-06-08 00:00:00
abstract::This case report describes a Gustilo Anderson type IIIB tibia fracture associated with extensive segmental bone loss at the proximal meta-diaphyseal junction associated with a tibial plateau fracture and an avulsion of the tibial tubercle. After the tibial plateau fracture was stabilized using cannulated lag screws, t...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-200209000-00010
更新日期:2002-09-01 00:00:00
abstract::Femoral shaft fractures are commonly treated with closed reduction and reamed intramedullary nailing. However, some reductions are difficult to obtain or maintain, especially in muscular or large patients. When closed methods fail to achieve reduction, percutaneous techniques are extremely useful. In addition, the use...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000000890
更新日期:2017-08-01 00:00:00
abstract::Lateral condyle fractures are second only to supracondylar humeral fractures when it comes to pediatric elbow fractures. Whether minimally displaced or substantially displaced, these growth plate fractures may present significant treatment challenges. These include nonunion, malunion, avascular necrosis, and growth di...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章,评审
doi:10.1097/BOT.0000000000001543
更新日期:2019-08-01 00:00:00
abstract::Damage to the brachial artery associated with closed elbow dislocation but without accompanying fracture is rare. Only 25 cases have been reported to date. We present a case that responded well to brachial artery vein grafting, and review the literature on this subject. Operative repair is recommended in this uncommon...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章,评审
doi:10.1097/00005131-199312000-00012
更新日期:1993-01-01 00:00:00
abstract:OBJECTIVE:To evaluate the results after closed reduction and percutaneous fixation of displaced fractures of the proximal humerus with the Humerusblock system. DESIGN:Prospective case series. SETTING:Level 1 trauma center. PATIENTS AND METHODS:Fifty-eight consecutive patients with displaced proximal humerus fracture...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e3181c81b1c
更新日期:2010-07-01 00:00:00
abstract::Although the benefit of spinal canal decompression of traumatic thoracolumbar burst fractures is controversial, it remains a desirable procedure, as many reports describe improved neurologic outcome with spinal canal reconstruction. The optimal type of posterior instrumentation for reconstructing the spinal canal is u...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-199112000-00004
更新日期:1991-01-01 00:00:00
abstract:OBJECTIVES:To evaluate the rate of, and reasons for, conversion of closed treatment of humeral shaft fractures using a fracture brace, to surgical intervention. DESIGN:Multicenter, retrospective analysis. SETTING:Nine Level 1 trauma centers across the United States. PATIENTS:A total of 1182 patients with a closed hu...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000001666
更新日期:2020-04-01 00:00:00
abstract::Two unusual cases of symptomatic partial rupture of the extensor carpi ulnaris tendon associated with ulnar-styloid nonunion are described. Intraoperative findings suggested that the jagged surface of the distal ulna was the cause of flaying. In one case, debridement of the frayed extensor carpi ulnaris tendon and fix...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章,评审
doi:10.1097/00005131-200210000-00011
更新日期:2002-10-01 00:00:00
abstract::Road traffic accidents are a leading cause of global mortality. In March 2010, the United Nations General Assembly and the World Health Organization (WHO) officially proclaimed 2011-2020 as the "Decade of Action for Road Safety." Researchers must focus on vulnerable road users and low- and middle-income countries (LMI...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000000103
更新日期:2014-01-01 00:00:00
abstract:OBJECTIVES:To quantify the obliquity and dimensions of the upper and second sacral segment iliosacral screw safe zones and to determine the differences between normal and dysmorphic sacral morphology. DESIGN:Retrospective cohort. SETTING:University Level I trauma center. PATIENTS/PARTICIPANTS:Fifty patients with pel...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e3181cf0404
更新日期:2010-10-01 00:00:00
abstract::Difficulty in maintaining the reduction of displaced radial fractures has prompted the use of numerous techniques to address this problem. The purpose of this study was to determine if four or five 0.045-in Kirschner pins when placed percutaneously through the ulna into the radius could maintain the reduction of this ...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-198906000-00004
更新日期:1989-01-01 00:00:00
abstract::A case of a complex distal humeral fracture is presented. The patient lacked sufficient bony architecture to allow for conventional reconstruction. A technique is described using an intramedullary plate to obtain bony stabilization and permit early range of motion exercises. ...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-200205000-00011
更新日期:2002-05-01 00:00:00
abstract::Results of hemiarthroplasty for complex four-part proximal humerus fractures in the elderly have been unreliable. Although patients often achieve pain relief, return of above-shoulder level function can be challenging, because tuberosity nonunion, malunion, and/or resorption is quite common. The reverse shoulder repla...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e3181f22088
更新日期:2011-05-01 00:00:00
abstract:OBJECTIVE:Evaluate the ability of osteogenic protein-1 to induce formation of de novo bone in the presence of bacterial infection and metal in an intramuscular osteoinduction model in the rat. DESIGN:Prospective experimental design with assessment time points of up to 4 weeks. SETTING:Intramuscular pocket surgically ...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-200408000-00008
更新日期:2004-08-01 00:00:00
abstract::Immediate (within 24 h) open reduction and internal fixation of 103 open fractures of one or both bones of the forearm was accomplished in 69 patients between 1980 and 1989. Fifty-four of the 103 patients were reevaluated 1 to 7 years postinjury (average 2.5 years) to determine the efficacy of this treatment. Forty-fi...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章,评审
doi:
更新日期:1992-01-01 00:00:00
abstract:OBJECTIVES:Report the technical aspects, radiographic results, and complications after minimum 1-year follow up of the anterior intra-pelvic (AIP or modified Rives-Stoppa) approach as an alternative to the ilioinguinal approach for the treatment of acetabular fractures. DESIGN:Retrospective review. SETTING:Level I tr...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e3181dd0b84
更新日期:2010-05-01 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::Standard 5-mm AO Schanz pedicle screws were biomechanically compared with a new design, featuring 6-mm threads with a 5-mm core diameter continuous with the shaft. One each of the two screw designs was surgically inserted into the matching pedicles of 32 cadaveric vertebrae. The pull-out strengths of the screws were t...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-199308000-00015
更新日期:1993-01-01 00:00:00
abstract:OBJECTIVES:To determine whether opioid use disorders (OUDs) are associated with adverse perioperative outcomes in patients undergoing surgical fixation for proximal femur fractures. METHODS:The National Hospital Discharge Survey was queried to identify patients surgically treated for proximal femur fractures between 1...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000001118
更新日期:2018-05-01 00:00:00
abstract:OBJECTIVE:To evaluate the clinical use of the Partridge osteosynthesis in periprosthetic femoral fractures. DESIGN AND SETTING:Prospective nonrandomized clinical study. PATIENTS:Over a ten-year period, 222 patients presenting with femoral fractures near the tip of a hip prosthesis were treated with the Partridge syst...
journal_title:Journal of orthopaedic trauma
pub_type: 临床试验,杂志文章
doi:10.1097/00005131-200101000-00011
更新日期:2001-01-01 00:00:00
abstract::Fracture compression can be achieved in many ways intraoperatively using either screws in compression plates, compression devices, or using intramedullary nails. The use of locked intramedullary nails combines the advantages of indirect fracture fixation and compression with minimal soft tissue disruption. This articl...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章,评审
doi:10.1097/BOT.0b013e31819f2779
更新日期:2009-05-01 00:00:00
abstract::Percutaneous iliosacral screw (IS) fixation for pelvic ring injuries with the use of an O-arm imaging system has been associated with decreased procedure time and improved accuracy of IS screw placement compared with the use of fluoroscopic guidance. Specifically, patients with sacral dysmorphism require identificatio...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000001213
更新日期:2018-08-01 00:00:00
abstract::Prospectively, 40 patients with an average age of 45 (20-65) with closed transverse fractures of the middle one-third of the humerus without associated radial nerve palsy were treated. All had failed nonoperative reduction and were then operated on with either compression plating or intramedullary fixation with Hacket...
journal_title:Journal of orthopaedic trauma
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00005131-199506000-00003
更新日期:1995-06-01 00:00:00
abstract:OBJECTIVE:To determine the ability of open reduction and plate fixation to restore articular congruity in the treatment of fractures of the distal radius with intraarticular comminution and displacement. DESIGN:Prospectively followed series. METHODS:Eighteen consecutive fractures of the distal radius with intraarticu...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-200106000-00008
更新日期:2001-06-01 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