Abstract:
OBJECTIVES:The aim of the current study was to analyze distraction osteogenesis histomorphometrically to investigate the amount of enchondral ossification adjacent to intramembranous ossification. STUDY DESIGN:Species-specific, longitudinal time study. METHODS Lengthening of 25% of the right tibia was performed in 24 beagle dogs by callus distraction after osteotomy and application of a ring fixator. Distraction was started at the fifth postoperative day with a distraction rate of 0.5 mm twice a day. Twelve dogs were killed at the end of the distraction phase of 25 days (group A) and the remaining 12 dogs after an additional consolidation period of 25 days (group B). The tibia was removed from the distracted right leg and from the left control side of each animal, and longitudinal sections were cut and stained with Pentachrome. In all tibiae, an area of 0.5 x 2.4 cm within the endosteal bone was evaluated histomorphometrically with a Merz grid, and the results were compared between distraction and control side as well as between the dogs of group A and group B. RESULTS:On the distraction side, the typical signs of an increased de novo bone formation with a significant increase of osteoblasts and osteoid in group A, as well as an additional significant increase of bone volume and trabecular thickness in group B, were found. In all distraction cases, islands of cartilage formation, which underwent enchondral ossification, were found, besides membranous ossification. The ratio between membranous and enchondral ossification was found to be five to one. CONCLUSION:Bone formation during distraction osteogenesis results from both membranous and enchondral ossification.
journal_name
J Orthop Traumajournal_title
Journal of orthopaedic traumaauthors
Fink B,Pollnau C,Vogel M,Skripitz R,Enderle Adoi
10.1097/00005131-200302000-00006subject
Has Abstractpub_date
2003-02-01 00:00:00pages
113-8issue
2eissn
0890-5339issn
1531-2291journal_volume
17pub_type
杂志文章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::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:INTRODUCTION:Proximal ulna fractures can cause a significant loss of forearm rotation, elbow stiffness, and disability. The objective of this study was to quantify the loss of forearm rotation after simulated varus and valgus malunions of the proximal ulna. METHODS:Eight cadaveric upper extremities were used to quanti...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e31829f5ebc
更新日期:2014-03-01 00:00:00
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 (cont...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e318238c086
更新日期:2012-09-01 00:00:00
abstract::A high percentage of patients with grade IIIC open tibial fractures eventually undergo amputation. Maintaining an adequate residual limb length is advantageous with regard to biomechanics, energy expenditure, and prosthetic fitting. This case report presents new considerations for maintaining residual limb length in t...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-199408000-00014
更新日期:1994-08-01 00:00:00
abstract::This study was done to determine whether fixation with the Uppsala internal fixation technique into the subchondral bone of the femoral head in the treatment of cervical hip fractures could lead to elevation of the femoral head cartilage. Combined arthrography and frontal tomography of the hip joint in the plane of th...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-198909000-00004
更新日期:1989-01-01 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:OBJECTIVES:Far cortical locking (FCL) constructs have been shown to increase axial interfragmentary displacement while limiting shear and have been specifically recommended in the treatment of distal femur fractures. However, there is no available data regarding their mechanical behavior within the range of bridge span...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000001341
更新日期:2019-02-01 00:00:00
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journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-200011000-00005
更新日期:2000-11-01 00:00:00
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journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e318172841c
更新日期:2008-05-01 00:00:00
abstract::We reviewed the treatment and results of 22 Bennett's fractures. Of these fractures, treated by closed reduction and plaster immobilization, 20 were available for follow-up. Eighteen patients had a subjectively satisfactory outcome, and seven had a radiographically confirmed arthrosis of the first carpometacarpal join...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-199502000-00004
更新日期:1995-02-01 00:00:00
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journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章,meta分析
doi:10.1097/BOT.0000000000001174
更新日期:2018-07-01 00:00:00
abstract::The 2-step closed reduction maneuver was developed to aid in the rarely encountered inferior shoulder dislocation. The maneuver converts the humeral head from an inferior dislocation to an anterior dislocation and then reduces the humeral head into the glenoid. The operator places one hand on the shaft of the humerus ...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-200605000-00010
更新日期:2006-05-01 00:00:00
abstract:OBJECTIVE:To review and critically assess trends observed regarding the levels of evidence in published articles in orthopaedic traumatology literature. DATA SOURCES:The Journal of Orthopaedic Trauma, Journal of Bone and Joint Surgery-American, and Clinical Orthopaedics and Related Research. STUDY SELECTION:All artic...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章,评审
doi:10.1097/BOT.0000000000000557
更新日期:2016-07-01 00:00:00
abstract::Osteochondromas are one of the most commonly observed benign bone tumors. Although there have been a number of experimental studies carried out to determine the origin of osteochondromas, their etiology remains a controversial issue. A well-documented case is presented in which a displaced Salter-Harris type II physea...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-199410000-00013
更新日期:1994-10-01 00:00:00
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journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000001810
更新日期:2020-11-01 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
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journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e318030df96
更新日期:2007-02-01 00:00:00
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journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0b013e3181c8ad52
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journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-199805000-00007
更新日期:1998-05-01 00:00:00
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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
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journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000000060
更新日期:2014-08-01 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
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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
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journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/BOT.0000000000001096
更新日期:2018-04-01 00:00:00
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journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章
doi:10.1097/00005131-200409000-00010
更新日期:2004-09-01 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
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更新日期:2005-04-01 00:00:00
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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:OBJECTIVES:To report the safety and clinical outcomes of placing current magnetic resonance imaging (MRI) components inside and outside the MRI bore during MRIs. DESIGN:Retrospective case series. SETTING:Four trauma centers (3 Level I and 1 Level II), from January 2005 to January 2015. PATIENTS:All patients who had ...
journal_title:Journal of orthopaedic trauma
pub_type: 杂志文章,多中心研究
doi:10.1097/BOT.0000000000000954
更新日期:2017-11-01 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