Abstract:
:One major advancement in the treatment of femoral neck fractures has been the development of cannulated screws. This study investigates the integrity of five commercially available cannulated screw systems. Transcervical fractures were created in 25 adult femora and repaired by three cannulated hip screws of a randomly assigned design. The repaired specimens were subjected to a triangular loading pattern for 1,000 cycles, then loaded to ultimate failure. Secondly, screws of each type were inserted into femoral heads to a point 5-mm from the chondral surface, then ramp loaded to determine the push-through stiffness and maximum load. Finally, individual screws were tested in high-cycle four-point bending fatigue in a custom fixture. In push-through, the Orthomet screws could withstand a significantly greater maximum load than the Synthes screws. The fatigue life of the Ace screws was significantly longer than the Howmedica, Synthes, and Orthomet screws, whereas the Orthomet screws performed significantly worse than all other screw types. Although cannulated screw systems uniquely address the problems of push-through resistance and high-cycle fatigue failure, certain designs are more susceptible to failure.
journal_name
J Orthop Traumajournal_title
Journal of orthopaedic traumaauthors
Rouleau JP,Blasier RB,Tsai E,Goldstein SAdoi
10.1097/00005131-199408000-00004subject
Has Abstractpub_date
1994-08-01 00:00:00pages
293-9issue
4eissn
0890-5339issn
1531-2291journal_volume
8pub_type
临床试验,杂志文章,随机对照试验abstract:OBJECTIVE:To evaluate objectively the effectiveness of current surgical management of displaced acetabular fractures. To provide insight into how these evaluation methods can be used to identify areas in which improvements in surgery and rehabilitation can be pursued to improve patient outcomes. DESIGN:Consecutive cas...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-200202000-00001
更新日期:2002-02-01 00:00:00
abstract:OBJECTIVES:To compare the Disability of the Arm, Shoulder, and Hand (DASH) and Constant scores, time to union, rate of union, patient cosmetic satisfaction rate, and the need for secondary procedures between 2.7- and 3.5-mm anteroinferior plating for Arbeitsgemeinschaft für Osteosynthesefragen (AO)/Orthopaedic Trauma A...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e3182693f32
更新日期:2013-03-01 00:00:00
abstract::Although Kirschner wires are useful implants in many situations, migration of the wire and irritation of the surrounding soft tissues are common complications. Seven steps are described herein, which result in a Kirschner wire that is bent 180° angle, providing a smooth anchor into bone. Use of this technique produces...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e318290f818
更新日期:2013-11-01 00:00:00
abstract:OBJECTIVES:To document the high failure rate of a specific implant: the Synthes Variable Angle (VA) Locking Distal Femur Plate. DESIGN:Retrospective. SETTING:Urban University Level I Trauma Center. PATIENT/PARTICIPANTS:All distal femur fractures (OTA/AO 33-A, B, C) treated from March 2011 through August 2013 were re...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000000391
更新日期:2016-01-01 00:00:00
abstract:OBJECTIVES:To determine if distal femoral traction pins result in knee dysfunction in patients with femoral or pelvic fracture, and to determine if skeletal traction relieves pain more effectively than splinting for femoral shaft fractures. DESIGN:Prospective cohort trial. SETTING:Level I urban trauma center. PATIEN...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000000202
更新日期:2015-02-01 00:00:00
abstract::In March 2016, North American academic leaders with an interest in and commitment to the field of global orthopaedics met in Orlando, Florida, to gauge each institution's clinical, research, and educational programs in developing countries, establish the main limitations to participating in global health efforts, and ...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000001288
更新日期:2018-10-01 00:00:00
abstract:OBJECTIVES:To determine how often preoperative testing is requested for geriatric hip fracture patients, to assess the extent to which preoperative testing is associated with delayed surgery, and to measure the frequency with which preoperative testing changes patient management. DESIGN:Retrospective. SETTING:Academi...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000000444
更新日期:2016-02-01 00:00:00
abstract:OBJECTIVES:To introduce a modified operative technique for minimally invasive plate osteosynthesis (MIPO) for acute displaced humeral shaft fractures and to evaluate the clinical and radiological outcomes. DESIGN:: Prospective clinical series study. SETTING:University hospital. PATIENTS:Twenty-one patients with acut...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e318254895f
更新日期:2012-10-01 00:00:00
abstract:OBJECTIVE:To determine whether stimulation with low-intensity ultrasound will reduce the radiologic healing time of fresh tibial shaft fractures fixed with a reamed and statically locked intramedullary rod. DESIGN:Prospective, randomized, double blinded, and placebo controlled. PATIENTS AND METHODS:Thirty-two adult p...
journal_title:Journal of orthopaedic trauma
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00005131-199905000-00005
更新日期:1999-05-01 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:OBJECTIVE:To analyze the mechanical stability of locked plating in comparison with tension-band wiring for the fixation of fractures of the patella. METHODS:Biomechanical tests were performed on artificial foam patella specimens comparing an angular stable plate and monocortical screws with tension-band wiring. Tests ...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000000309
更新日期:2015-09-01 00:00:00
abstract::After completing an orthopaedic trauma fellowship, what challenges will you have as regard to maintaining balance and perspective in your new position in society? How will you view yourself, family, and your profession? These are simple suggestions on maintaining passion for your profession. ...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章,评审
doi:10.1097/BOT.0000000000000431
更新日期:2015-11-01 00:00:00
abstract:OBJECTIVE:To determine the effectiveness of exchange reamed nails for treatment of aseptic femoral delayed unions and nonunions. DESIGN:Retrospective chart review. PATIENTS:Nineteen patients admitted to the Carolinas Medical Center Level I trauma center from 1990 to 1996 for repair of femoral shaft fracture nonunion ...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-200006000-00005
更新日期:2000-06-01 00:00:00
abstract:OBJECTIVES:To describe the surgical technique and clinical outcomes of high-energy proximal femur fractures treated with a 95-degree angled blade plate. DESIGN:Retrospective case series. SETTING:Single academic Level I trauma center. PATIENT/PARTICIPANTS:Forty-five consecutive patients from March 2012 to April 2017 ...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000001505
更新日期:2019-07-01 00:00:00
abstract:OBJECTIVE:To determine the effects of various suture patterns on cutaneous blood flow (CBF) at the wound edge as increasing tension is applied through the suture. METHODS:Four different suture patterns commonly used for wound closure (simple, vertical mattress, horizontal mattress, and Allgower-Donati) were placed ind...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e318169074c
更新日期:2008-03-01 00:00:00
abstract:OBJECTIVES:To compare the accuracy of 5 commonly available fine wire tensioners used in hybrid and ring external fixation. DESIGN:A laboratory investigation. SETTING:The testing of 5 commonly available tensioners was performed with a servohydraulic test frame (MTS Bionix 858, Minneapolis, MN). MAIN OUTCOME MEASUREME...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-200403000-00006
更新日期:2004-03-01 00:00:00
abstract::An 80-year-old man sustained a T-shaped supracondylar fracture of the femur associated with distal one-third shaft comminution. Initial failure of a 95 degrees angle blade plate was followed by insertion of an intraarticular intramedullary nail stabilized with static locking-screw fixation. A second failure of the imp...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-199308000-00004
更新日期:1993-01-01 00:00:00
abstract:OBJECTIVES:To assess the outcomes of the surgical management of "isolated" displaced lateral malleolar fractures, comparing the techniques of lateral plating and antiglide plating as described previously. DESIGN:This is a retrospective review, being largely a surgeon-randomized comparative study. SETTING:The study wa...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-200208000-00008
更新日期:2002-08-01 00:00:00
abstract::The maximum pullout force in the distal metaphysis of cadaver femurs was investigated using a commercially available, pneumatically inserted staple. In paired studies, a significantly greater pullout force was required in the power-driven staples than in an almost identical sized hand-driven staple. A nonlinear relati...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-199004020-00009
更新日期:1990-01-01 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::The surgical treatment of pelvic and acetabular fractures can be technically challenging. Various techniques are available for the reconstruction of pelvic and acetabular fractures. Less invasive percutaneous fracture stabilization techniques, with closed reduction or limited open reduction, have been developed and ar...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章,评审
doi:10.1097/BOT.0b013e318288c0c3
更新日期:2014-01-01 00:00:00
abstract:BACKGROUND:Fractures of the femur above a total knee arthroplasty (TKA) are becoming increasingly common in the osteoporotic, aging populations of developed countries. Treatment of these fractures is complicated by the presence of a knee prosthesis, frequently limiting the bone available for distal fracture fixation. T...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e31822c050b
更新日期:2012-07-01 00:00:00
abstract::To evaluate the use of a two-prong splint for displaced, proximal, humerus, epiphyseal fractures, seven children with Neer-Horwitz Classification Type 3-4 fractures of the proximal humerus were retrospectively investigated. After closed reduction, fracture stabilization was accomplished with the use of a two-prong spl...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-200309000-00007
更新日期:2003-09-01 00:00:00
abstract:OBJECTIVE:To assess surgical and functional results after corrective reconstruction of malunited, scapula neck or body fractures in patients who presented with chronic pain, limited range of motion, weakness, and gross deformity of the shoulder. DESIGN:Case series. SETTING:Level I teaching trauma center. PATIENTS:Be...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e31820af67f
更新日期:2011-11-01 00:00:00
abstract:OBJECTIVE:To review the outcome of patients with concurrent dorsal dislocations and fracture-dislocations of the second, third, fourth, and fifth carpometacarpal (CMC) joints treated with open reduction and internal fixation (ORIF). DESIGN:Retrospective review. SETTING:Level 1 trauma center. PATIENTS:Between 1991 an...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-200111000-00003
更新日期:2001-11-01 00:00:00
abstract:OBJECTIVES:(a) To develop a reliable and reproducible system for distraction osteogenesis in the rat to establish a model for future investigations of bone repair and regeneration. (b) To describe and characterize the histological events in distraction osteogenesis in the rat and to determine whether cartilage developm...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-199802000-00008
更新日期:1998-02-01 00:00:00
abstract:OBJECTIVES:The stacked hexapod bone transport technique is an effective treatment for infected tibial nonunions with bone loss. The purpose of this study was to evaluate the patients' risk factors and timing for requiring adjunctive stabilization. DESIGN:Retrospective cohort study. SETTING:Level 1 trauma center. PAT...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000000840
更新日期:2017-07-01 00:00:00
abstract::Femoral neck nonunions are a difficult complication in the treatment of femoral neck fractures and have traditionally been managed using an intertrochanteric valgus osteotomy and blade plate. We propose an alternative method, a proximal femoral valgus osteotomy using a sliding hip screw instead of a blade plate. This ...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章,评审
doi:10.1097/00005131-200608000-00006
更新日期:2006-07-01 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: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