Abstract:
BACKGROUND:Acceptable amounts of malrotation after CRPP for pediatric supracondylar humerus fracture (SCHFx) have yet to be defined. This is an attempt to correlate radiographic parameters of a malrotated SCHFx with degrees of rotational malalignment to assist intraoperative assessment of reduction. METHODS:3D models of a left distal humerus were printed, simulating a transverse SCHFx with 5, 10, 15, 20, 25, and 30 degrees of malrotation. Four different scenarios were developed: (1) lateral cortical axis of rotation, (2) medial cortical axis of rotation, (3) centroid of the humerus longitudinal axis with the medial condyle rotated posteriorly, and (4) centroid of the humerus longitudinal axis with the medial condyle rotated anteriorly. Anteroposterior and lateral fluoroscopic views were taken with a consistent image profile. Five observers measured the amount of metaphyseal overhang on the lateral view and the width of the distal humerus just proximal to the fracture to establish amount of overhang as a percentage of distal humerus width. Regression analysis established "best fit" lines for the 4 scenarios. Ten observers used the observed characteristics of each type of malrotation and "best fit" lines to estimate axis and degrees of malrotation using the same fluoroscopy of the 24 models. RESULTS:The intraclass correlation coefficient of reliability for percentage of metaphyseal overhang ranged from 0.775 to 0.987. Observers correctly predicted axis of malrotation in 76% and correctly predicted amount of malrotation in 75% of models. CONCLUSIONS:Estimation of axis of malrotation and degrees of malrotation within 5 degrees in SCHFx can be predicted in 75% of our 3D printed models.
journal_name
J Orthop Traumajournal_title
Journal of orthopaedic traumaauthors
Prabhakar P,Pierce WA,Standefer KD,Ho CAdoi
10.1097/BOT.0000000000001735subject
Has Abstractpub_date
2020-07-01 00:00:00pages
e245-e249issue
7eissn
0890-5339issn
1531-2291pii
00005131-202007000-00013journal_volume
34pub_type
杂志文章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:OBJECTIVES:To compare the abductor muscle function and trochanteric tenderness in patients operated with hemiarthroplasty using the direct lateral (DL) or posterolateral (PL) approach for displaced femoral neck fracture. DESIGN:Prospective cohort study. SETTING:A secondary teaching hospital. PARTICIPANTS:We enrolled...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000000532
更新日期:2016-06-01 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:OBJECTIVE:To examine the cost and efficacy of methods of general and regional anesthetic for postoperative pain control after open repair of intra-articular calcaneal fractures. We compared single-injection popliteal fossa blocks and continuous infusion popliteal fossa blocks with drug delivered through a catheter from...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e3181bfc9f7
更新日期:2010-03-01 00:00:00
abstract:OBJECTIVES:To determine the association of preinjury opioid use on incidence of fasciotomy after lower extremity trauma. DESIGN:Retrospective case-control study. SETTING:Level 1 trauma center. PATIENTS/PARTICIPANTS:We identified 245 consecutive patients treated with fasciotomy for compartment syndrome of the lower e...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000001650
更新日期:2020-03-01 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:OBJECTIVE:Comparison between a Less Invasive Stabilization System (LISS) using monocortical screws with angular stability and two conventional plate systems Condylar Buttress Plate (CBP) and Dynamic Condylar Screw (DCS) for the treatment of distal femoral fractures with respect to biomechanical properties. DESIGN:Biom...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-200109000-00004
更新日期:2001-09-01 00:00:00
abstract:OBJECTIVE:To determine the prognostic reliability, sensitivity, and specificity of the Hawkins sign. The Hawkins sign is a subchondral radiolucent band in the talar dome that is indicative of viability at 6 to 8 weeks after a talus fracture. It is visible in the anterior-posterior view, but seldom appears on lateral ra...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e318148c665
更新日期:2007-09-01 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::Ankle fractures are commonly treated by orthopaedic surgeons and often require manipulative reduction. This can be painful for the patient and frequently uses 2 or more providers. Intra-articular injection of local anesthetic into the ankle joint precludes the need for conscious sedation (intravenous narcotics and ben...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000000206
更新日期:2015-04-01 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::We present a case of a 19-year-old woman with a closed diaphyseal femur fracture and who had fixation of the fracture using a newer lateral entry nail, which resulted in an intraoperative proximal femur fracture. The patient underwent revision the following day and subsequently returned to regular activity without sig...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e3181a53790
更新日期:2010-04-01 00:00:00
abstract::Minifragment implants provide several advantages for the stabilization of distal humerus fractures. Compared with small fragment implants, minifragment implants may provide enhanced fracture fixation because a greater number of screws can be placed into the distal fragments. In addition, minifragment plates are easier...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/01.bot.0000157908.45939.d7
更新日期:2005-08-01 00:00:00
abstract:OBJECTIVES:To determine the most commonly associated injuries, complications, and healing rates of patients sustaining segmental tibial shaft fractures. DESIGN:Retrospective review. SETTING:Two Level I trauma centers. PATIENTS:A total of 108 patients with segmental tibial shaft fractures were identified between 2005...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章,多中心研究
doi:10.1097/BOT.0000000000001132
更新日期:2018-06-01 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::The ability of calcium phosphate cement (CPC) to reinforce cancellous screws placed in previously stripped holes was studied in vitro. The distal end of canine femurs were harvested. A total of 15 screws were placed in six femurs. The pullout strength (failure force), failure displacement, stiffness, and energy absorb...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-199601000-00003
更新日期:1996-01-01 00:00:00
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 placemen...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/QAI.0b013e3181a25368
更新日期:2009-08-01 00:00:00
abstract:OBJECTIVE:To evaluate the cost-effectiveness of screw fixation versus hemiarthroplasty for nondisplaced femoral neck fractures in low-demand elderly patients. METHODS:We constructed a Markov decision model using a low-demand, 80-year-old patient as the base case. Costs, health-state utilities, mortality rates, and tra...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000001747
更新日期:2020-07-01 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: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::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 whether the superior sensitivity of computed tomography (CT) results in changes in treatment plans for cervical spine fractures that have been diagnosed on plain films alone. DESIGN:Retrospective review of radiographic studies for cervical spine trauma. SETTING/PARTICIPANTS:An orthopaedic spine...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-199906000-00003
更新日期:1999-06-01 00:00:00
abstract::Transverse fractures at the distal tip of a well-fixed femoral prosthesis are difficult to stabilize using plates and screws due to the presence of the underlying intramedullary stem. The attachment of plates using cerclage wires obviates the need for screws, but the stability provided by cerclage plating is a clinica...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-199505000-00004
更新日期:1995-01-01 00:00:00
abstract:OBJECTIVES:Much attention has been given to lower extremity amputations that occur more than 90 days after injury, but little focus has been given to analogous upper extremity amputations. The purpose of this study was to determine the reason(s) for desired amputation and the common complications after amputation for t...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e3182a665f5
更新日期:2014-04-01 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: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:To determine whether surgeons' and patients' perceptions of outcomes after high-energy lower-extremity trauma are similar and to identify factors associated with disagreement. DESIGN:Prospective study. SETTING:Eight level 1 trauma centers. PATIENTS:Four hundred sixty-three patients treated for limb-threat...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章,多中心研究
doi:10.1097/BOT.0b013e3181ab2c90
更新日期:2009-11-01 00:00:00
abstract::In physiologically young patients with displaced femoral neck fractures, surgical treatment is aimed at achieving fracture union while preserving native hip anatomy and biomechanics. The intracapsular environment, tenuous vascular supply, and unfavorable hip biomechanics contribute to the high complication rates seen ...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章,评审
doi:10.1097/BOT.0000000000001368
更新日期:2019-01-01 00:00:00
abstract:OBJECTIVES:To examine the biomechanical behavior of 2 techniques of double-plate osteosynthesis for fractures of the adult distal humerus using conventional reconstruction plates and locking compression plates. DESIGN:Basic science study. SETTING:Experimental in vitro study. PATIENTS/PARTICIPANTS:Forty fresh-frozen ...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-200405000-00004
更新日期:2004-05-01 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