Abstract:
OBJECTIVES:Biomechanical studies of osteoporotic bone have used synthetic models rather than cadaveric samples because of decreased variability, increased availability, and overall ease of the use of synthetic models. We compared the torsional mechanical properties of cadaveric osteoporotic bone with those of currently available synthetic osteoporotic bone analogues. METHODS:We tested 12 osteoporotic cadaveric humeri and 6 specimens each of 6 types of synthetic analogues. A 5-mm fracture gap model and posterior plating technique with 4.5-mm narrow 10-hole locking compression plate were used. Torque was applied to a peak of ±10 N·m for 1000 cycles at 0.3 Hz. Data were continuously collected during cyclical and ramped loading with a servohydraulic materials testing system. RESULTS:Cadaveric bone had a 17% failure rate before completing 1000 cycles. Three osteoporotic bone models had 100% failure (P < 0.05), 2 had 17% failure, and 1 had 0% failure before 1000 cycles. Significant differences in the stiffness of the 3 types of synthetic bone models that survived cyclic loading were noted compared with the cadaveric bone model (P < 0.05). Osteoporotic bone analogues had torsional mechanical properties different from those of osteoporotic cadaveric specimens. CONCLUSIONS:The differences between osteoporotic cadaveric humeri and synthetic osteoporotic bone analogues ranged from profound with complete catastrophic failure after a few cycles to subtler differences in stiffness and strain hardening. These findings suggest that different bone analogue models vary substantially in their torsional mechanical properties and might not be appropriate substitutes for cadaveric bone in biomechanical studies of osteoporotic bone.
journal_name
J Orthop Traumajournal_title
Journal of orthopaedic traumaauthors
Becker EH,Kim H,Shorofsky M,Hsieh AH,Watson JD,OʼToole RVdoi
10.1097/BOT.0000000000000782subject
Has Abstractpub_date
2017-05-01 00:00:00pages
e137-e142issue
5eissn
0890-5339issn
1531-2291journal_volume
31pub_type
杂志文章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:To evaluate the incidence of unplanned reoperations after pelvic ring injuries and to develop a risk prediction model. DESIGN:Retrospective review. SETTING:Level I Trauma Center. PATIENTS:The medical records of 913 patients (644 male and 269 female patients; mean age, 39 years; age range, 16-89 years) wit...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000001170
更新日期:2018-07-01 00:00:00
abstract:OBJECTIVE:Recombinant human bone morphogenetic protein-2 (rhBMP-2) has been shown to enhance new bone formation in fracture and bone defect models in both normal and diabetic rats. Effects of rhBMP-2 in a segmental femoral defect model in diabetes mellitus (DM) BB Wistar rats have not been reported. METHODS:Collagen s...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e31819f290e
更新日期:2009-04-01 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: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::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: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:OBJECTIVES:To correlate functional deficits after surgical treatment of displaced intraarticular calcaneal fractures (DIACFs) as measured through dynamic pedobarography with clinical and radiographic long-term results. DESIGN:Retrospective single-center study. SETTING:Level 1 trauma center. PATIENTS:Sixty-five patie...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000001325
更新日期:2018-12-01 00:00:00
abstract:OBJECTIVES:The purpose of this article was to present results of cases using a subcutaneous bone pouch technique and to assess the potential "autosterilization" effect that occurs when these contaminated free bone fragments are placed in nontraumatized tissue. DESIGN:Retrospective review of prospectively collected dat...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000000352
更新日期:2015-12-01 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:OBJECTIVES:The purpose of this study was to review the outcome of late revision surgery in a series of patients with posterior wall fractures having recurrent hip instability after failed initial open reduction and internal fixation. DESIGN:Retrospective analysis of consecutive patients. SETTING:Level 1 trauma center...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e31819a07cf
更新日期:2009-03-01 00:00:00
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:OBJECTIVE:To investigate whether a long bone cortex of well-defined thickness can be regenerated by using an anatomically designed membranous resorbable "tube-in-tube" implant and to establish the functions of membranes in the healing of segmental diaphyseal bone defects larger than the "critical size." DESIGN:Bone he...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-199903000-00006
更新日期:1999-03-01 00:00:00
abstract:OBJECTIVES:This cadaveric study sought to evaluate the accuracy of syndesmotic reduction using direct visualization via an anterolateral approach compared with palpation of the syndesmosis through a laterally based incision. METHODS:Ten cadaveric specimens were obtained and underwent baseline computed tomography (CT) ...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000001322
更新日期:2019-01-01 00:00:00
abstract:OBJECTIVES:To compare the strength of fixation of percutaneous screw versus plate/screw fixation in a paired cadaver model of OTA 41-B3 (Schatzker type II) split-depression fractures of the lateral tibial plateau. METHODS:Six matched pairs of cadaveric knees were acquired. An OTA 41-B3 (Schatzker type II) split-depres...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000001177
更新日期:2018-07-01 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:OBJECTIVE:A new device for the treatment of intertrochanteric fractures that uses 2 cephalocervical screws in an integrated mechanism allowing linear intraoperative compression and rotational stability of the head/neck fragment has been developed. The aim of this study was to describe the results using this device for ...
journal_title:Journal of orthopaedic trauma
pub_type: 临床试验,杂志文章
doi:10.1097/BOT.0b013e31819211b2
更新日期:2009-01-01 00:00:00
abstract:OBJECTIVES:Retrospective evaluation of the long-term outcomes after surgical treatment of traumatic patellar dislocations in adolescents and identification of possible predictive factors of poor outcomes. DESIGN:Retrospective clinical study. SETTING:University Clinic, Level I Trauma Center. PATIENTS:All 33 adolescen...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e318299cb50
更新日期:2014-03-01 00:00:00
abstract::A retrospective review of 39 fractures of the femur in 37 patients caused by low- and mid-velocity handgun missiles treated with static interlocking nailing within 18 h of injury was conducted to evaluate the efficacy, safety, and cost savings of immediate intramedullary nailing in these injuries. Patients were follow...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-199404000-00010
更新日期:1994-01-01 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::Use of cephalomedullary nails is an option for treatment of subtrochanteric femur fractures. However, the magnitude of bending forces in this area of the femur often can lead to implant failure before union. We report on a case of hardware failure of a specific device (Synthes spiral blade) and a method for removal. ...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-199803000-00010
更新日期:1998-03-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to report the clinical results of atypical femoral fractures (AFFs) treated with low-intensity pulsed ultrasound (LIPUS). MATERIALS AND METHODS:The data on AFFs that were surgically treated in our hospital from 2010 to 2016 was retrospectively analyzed. AFF was diagnosed based on th...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/01.bot.0000520889.69599.f3
更新日期:2017-07-01 00:00:00
abstract::The application of a pelvic clamp for provisional stability of unstable pelvic fractures has been advocated in the orthopaedic literature. Although the technique has gained some supporters, problems with placement and associated complications have prevented widespread acceptance. We have modified the pelvic clamp (ACE...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/01.bot.0000175156.92743.db
更新日期:2006-01-01 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::Anterior approaches to the pelvis for acetabular surgery require an intimate knowledge of pelvic anatomy. The utilitarian anterior approach is the ilioinguinal approach. This article will describe a technique for modifying the medial window of the ilioinguinal approach to facilitate intrapelvic visualization and instr...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000000266
更新日期:2015-02-01 00:00:00
abstract:OBJECTIVES:The objective of this study was to evaluate donor site morbidity associated with anterior iliac crest bone graft harvesting for orthopaedic trauma reconstructions. DESIGN:Retrospective case series. SETTING:Level 1 trauma center. PATIENTS:Forty-Six consecutive patients who had undergone anterior iliac cres...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000000551
更新日期:2016-06-01 00:00:00
abstract:OBJECTIVE:The objective of this study was to analyze the appropriateness of transfer of patients with orthopaedic injuries to a Level I trauma center from surrounding Level II to IV centers. DESIGN:A prospective study was conducted over a 5-month period by collecting data on all orthopaedic patients being transferred ...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e3181b18b89
更新日期:2010-06-01 00:00:00
abstract:OBJECTIVES:The aim of this study was analyze modes of mechanical failure in a consecutive cohort of patients and establish possible risk factors. DESIGN:This was a retrospective cohort study. SETTING:The study was conducted at an academic level-1 trauma center. PATIENTS:Twenty-nine patients (mean age 56 years, range...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e318251930d
更新日期:2013-01-01 00:00:00
abstract::Tibial shaft fractures distal to total knee arthroplasty are rare, but they are likely to become more common with the increasing number of arthroplasty procedures being performed. These fracture patterns have been treated in the past either with closed reduction and casting/bracing or with open reduction internal fixa...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000000096
更新日期:2014-12-01 00:00:00
abstract::In our search for an osteosynthesis device that would tolerate the surgical errors of the inexperienced surgeon, we tested in vitro femoral stiffness in 75 human osteoporotic femora after internal fixation of a cervical neck osteotomy using three commonly used devices: two von Bahr screws (A. Ericsson AB, Sweden), two...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-199608000-00009
更新日期:1996-01-01 00:00:00