Abstract:
OBJECTIVE:To determine the relative stability achieved in unstable supracondylar femur fractures treated with long (36 cm) and short (20 cm) retrograde intramedullary nails using 1 or 2 proximal locking bolts. We hypothesized that longer nails would reduce fracture site motion compared with short nails and that 2 proximal locking bolts would improve stability compared with 1 proximal locking bolt. DESIGN:Nine pairs of matched human cadaveric femurs were instrumented with 20-cm and 36-cm retrograde intramedullary nails (all 12-mm diameter, Biomet, Warsaw, IN) following reaming to 13 mm. Transverse supracondylar gap (6 mm) osteotomies were created. The femurs were mounted and cyclically tested separately in coronal plane bending and sagittal plane bending on a materials testing system. Fracture site translation was measured using a digital caliper in the respective plane. SETTING:Orthopaedic biomaterials laboratory. RESULTS:With 2 proximal locking bolts, average sagittal translation was 7.2 mm and 1.8 mm, respectively, for the 20-cm and 36-cm nails. Coronal translation was 6.3 mm and 4.3 mm, respectively. With a single proximal locking bolt, average sagittal translation was 7.6 mm and 2.2 mm, respectively, for the 20-cm and 36-cm nails. Coronal translation was 13.6 mm and 4.4 mm, respectively. A statistically significant difference in fracture site translation was found in each pairing by Student t test (P < 0.005), except coronal translation with 2 proximal locking bolts (P = 0.056). Free-body analysis predicts higher local stresses at the proximal interlocks of the shorter nail. CONCLUSIONS:Longer nails provide improved initial fracture stability when compared with short retrograde nails for supracondylar femur fractures due to a more stable mechanical interaction between the femoral diaphysis and the nail. A second proximal locking bolt in the long nail provides no additional stability.
journal_name
J Orthop Traumajournal_title
Journal of orthopaedic traumaauthors
Sears BR,Ostrum RF,Litsky ASdoi
10.1097/00005131-200407000-00004subject
Has Abstractpub_date
2004-07-01 00:00:00pages
354-60issue
6eissn
0890-5339issn
1531-2291pii
00005131-200407000-00004journal_volume
18pub_type
杂志文章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:OBJECTIVES:To compare single versus multiple procedures in the same surgical setting. We hypothesized that complication rates would not be different and length of stay would be shorter in patients undergoing multiple procedures. DESIGN:Prospective, cohort. SETTING:Level 1 trauma center. PATIENTS/PARTICIPANTS:A total...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000000556
更新日期:2016-08-01 00:00:00
abstract:OBJECTIVES:To determine whether bundled payments are feasible in the orthopaedic fracture setting, and the potential economic implications of this reimbursement structure. DESIGN:Prospective. SETTING:Multicenter. PATIENTS/PARTICIPANTS:Between 2004 and 2014, a total of 23,643 operatively treated patients with fractur...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000000742
更新日期:2017-03-01 00:00:00
abstract:OBJECTIVE:To determine if a dual-purpose bone graft can regenerate bone and reduce infection in highly contaminated bone critical size defects in rats. METHODS:Biodegradable polyurethane (PUR) scaffolds were loaded with recombinant human bone morphogenetic protein-2 (BMP-2) and vancomycin (Vanc). The release kinetics ...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e31821f624c
更新日期:2011-08-01 00:00:00
abstract::Traumatic spinal cord injuries have a tremendous impact on individuals, families, and society as a whole. Substantial heterogeneity in the patient population, their presentation and underlying pathophysiology has sparked debates along the care spectrum from initial assessment to definitive treatment. This article revi...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章,评审
doi:10.1097/BOT.0000000000000943
更新日期:2017-09-01 00:00:00
abstract::Young surgeons and their spouses experience a myriad of stresses in the first few years of practice. Issues related to job search, moving to a new community, learning one's craft, time management, changes to spouse's career, child rearing, and the ever blurring line between work time and free time may all contribute t...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e3182641fd8
更新日期:2012-09-01 00:00:00
abstract::Twenty-six patients with major anterior-posterior pelvic disruptions not involving the acetabulum were reevaluated an average of 8 years (minimum 5 years) after injury. All pelvic injuries were treated nonoperatively. Subjective complaints at the time of follow-up included frequent or daily low back discomfort (50%), ...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-198903010-00008
更新日期:1989-01-01 00:00:00
abstract::The standard AO-plate was used as an external fixator in 31 patients with an infected nonunion or open fracture mainly of the upper extremity. With the use of this technique, good stability can be achieved with an inexpensive and relatively simple construction. The low profile of the frame is an advantage for the pati...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-200301000-00010
更新日期:2003-01-01 00:00:00
abstract::We used a mathematical model to determine whether the approach to derotation of the malrotated femur can be improved for use in corrective osteotomy of the femur. Rotational corrective osteotomy of the femur (RCOF) is a procedure performed by orthopedic surgeons to correct congenital femoral torsion deformities and po...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-199806000-00012
更新日期:1998-06-01 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: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:OBJECTIVE:To determine if the addition of a dorsal ulnar pin plate provides improved stability characteristics in the management of intra-articular distal radius fractures with an associated dorsal ulnar fragment. METHODS:OTA/AO type C3 fractures, with a dorsal ulnar fragment of one-third or one-half the width of the ...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000001776
更新日期:2020-09-01 00:00:00
abstract:SUMMARY:In the following case, a 20-year-old male was involved in a motorcycle accident where he sustained an open midshaft femur fracture treated with open reduction and internal fixation. Several weeks later, the wound became infected and the plate was removed. Over the following 20 years numerous incision and debrid...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e318051532d
更新日期:2007-05-01 00:00:00
abstract:OBJECTIVES:Open fractures with bone loss are common, disabling injuries. Biodegradable, load-bearing scaffolds able to carry high concentrations of local antibiotics are an emerging technology to address these injuries. This study investigates the use of such scaffolds with gentamicin (along with bone morphogenetic pro...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e3181ed1349
更新日期:2010-09-01 00:00:00
abstract:OBJECTIVES:Prophylaxis against thromboembolic complications has become routine after major orthopedic surgery. In contrast, it remains an issue for debate whether prophylaxis after minor surgery and immobilization is necessary, even though these treatments are well-known risk factors for deep-vein thrombosis (DVT). The...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章,随机对照试验
doi:10.1097/01.bot.0000250741.65003.14
更新日期:2007-01-01 00:00:00
abstract::Fractures of the femur have long been a major cause of morbidity and mortality in developing countries and are most frequently caused by road traffic accidents. Intramedullary nail fixation has become the gold standard of care for diaphyseal fractures of the femur. However, modern techniques require proper implants, a...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章,多中心研究
doi:10.1097/BOT.0000000000001407
更新日期:2019-05-01 00:00:00
abstract:OBJECTIVES:To investigate whether rotational malalignment of tibia, after fracture management with minimally invasive plate osteosynthesis technique (MIPO), leads to impaired results in knee and ankle joint functional scores. DESIGN:Prospectively collected data was retrospectively analyzed for this study. SETTING:Lev...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000002053
更新日期:2020-12-31 00:00:00
abstract::A unique case of an irreducible fracture dislocation of the knee is reported. A review of the literature revealed no previously reported cases of fracture dislocation of the distal femur not amenable to closed reduction. ...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章,评审
doi:10.1097/00005131-199607000-00013
更新日期:1996-01-01 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:OBJECTIVES:To radiographically demonstrate the upper sacral nerve root tunnel (USNRT) in both cadaveric specimens and a clinical cohort and to quantify its clinical relevance. SETTING:Level 1 trauma center and anatomy laboratory. PATIENTS AND PARTICIPANTS:Eleven cadaveric pelves and 23 consecutive patients who underw...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e3181a2e419
更新日期:2009-05-01 00:00:00
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 compare the results between a new intramedullary Gamma nail and a compression hip screw in the treatment of trochanteric fractures. DESIGN:Prospective randomized. SETTING:Level 1 trauma center. PATIENTS:Two hundred ten consecutive patients older than 65 years with trochanteric femoral fractures. INTER...
journal_title:Journal of orthopaedic trauma
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/01.bot.0000151819.95075.ad
更新日期:2005-04-01 00:00:00
abstract::A case of an angulated, greenstick fracture of the scapula mimicking scapular winging in a skeletally immature 12-year-old boy is described. The bony deformity was visualized with plain radiography. CT was helpful in exclusion of a thoracic injury or an underlying neoplasm. Closed reduction yielded satisfactory result...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/01.bot.0000174707.10980.f4
更新日期:2006-02-01 00:00:00
abstract:UNLABELLED:To determine which of 2 techniques for the treatment of periprosthetic femoral shaft fractures is of greater stiffness. DESIGN:A laboratory study using 8 pairs of matched, embalmed femurs. METHODS:Femurs implanted with a cemented total hip prosthesis had a simulated periprosthetic femur fracture created di...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/01.bot.0000199119.38359.96
更新日期:2006-02-01 00:00:00
abstract::Compression screws, Ender rods, and Zickel nails were evaluated mechanically to determine their resulting stability in the fixation of experimental subtrochanteric femur osteotomies. Twenty-five pairs of human cadaver femurs were used. Experimental osteotomies were created and a random member of each pair was fixed wi...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-199003000-00010
更新日期:1990-01-01 00:00:00
abstract:OBJECTIVE:To evaluate the functional outcomes and pain in patients with unilateral posterior pelvic ring injuries treated with transiliac-transsacral screw fixation compared with unilateral iliosacral screw fixation. DESIGN:Retrospective comparative study. SETTING:Three academic level 1 trauma centers. PATIENTS/PART...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章,多中心研究
doi:10.1097/BOT.0000000000000622
更新日期:2016-09-01 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::Patella fractures are challenging orthopaedic injuries. Many commonly used fixation techniques can be ineffective and lead to poor clinical outcomes even with satisfactory reductions and fracture healing. In this investigation, we present the technique of cage plate fixation of patella fractures and the clinical outco...
journal_title:Journal of orthopaedic trauma
pub_type: 临床试验,杂志文章
doi:10.1097/BOT.0000000000000415
更新日期:2015-12-01 00:00:00
abstract:OBJECTIVES:Malalignment has been frequently reported after intramedullary stabilization of distal tibia fractures. Nails have also been associated with knee pain in several studies. Historically, plate fixation has resulted in increased risks of infection and nonunion. Our purposes were to compare plate and nail stabil...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章,随机对照试验
doi:10.1097/BOT.0b013e318213f709
更新日期:2011-12-01 00:00:00
abstract:OBJECTIVE:Lateral cortical stress reactions have been documented to precede femoral insufficiency fractures after long-term bisphosphonate therapy. We studied the natural history of femoral stress lesions associated with long-term bisphosphonate therapy. DESIGN AND SETTING:A retrospective clinical and radiologic revie...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e3181b6499b
更新日期:2010-02-01 00:00:00