Abstract：
:Dual energy xray absorptiometry was investigated as a method for evaluation of the strength of closed tibial fractures. In 40 goats, a closed midshaft fracture was created in the left tibia. The fractures were stabilized with an external fixator. After 2 weeks (n = 21) and after 4 weeks (n = 19), both tibias were explanted and, using dual energy xray absorptiometry, bone mineral density and bone mineral content were measured in a 1 cm region. With nondestructive bending tests, area ratio and stiffness index were determined and torsional strength and torsional stiffness were determined with a torsional test to failure. Linear regression analysis was used to calculate the squared correlation coefficients for the relations between dual energy xray absorptiometry and the outcome of the mechanical tests. The squared correlation coefficients for the relation between bone mineral density and torsional strength, torsional stiffness, and area ratio and stiffness index were 0.72, 0.76, 0.64, and 0.72, respectively. The squared correlation coefficients for the relation between bone mineral content and these mechanical parameters were 0.72, 0.77, 0.63, and 0.77, respectively. The results using dual energy xray absorptiometry indicate the strength of healing closed fractures. Additional research is required to investigate specific aspects of this technique.
journal_name
Clin Orthop Relat Resjournal_title
Clinical orthopaedics and related researchauthors
Blokhuis TJ,den Boer FC,Bramer JA,van Lingen A,Roos JC,Bakker FC,Patka P,Haarman HJdoi
10.1097/00003086-200011000-00035subject
Has Abstractpub_date
2000-11-01 00:00:00pages
260-8issue
380eissn
0009-921Xissn
1528-1132pub_type
杂志文章abstract：:The success of a total hip arthroplasty (THA) is dependent on many more parameters than simply the prosthesis used. This study has demonstrated that a randomized controlled clinical trial of 250 patients comparing two types of hip prostheses (cemented versus cementless) with virtually complete follow-up examination is...
journal_title：Clinical orthopaedics and related research
pub_type： 临床试验,杂志文章,随机对照试验
doi：
更新日期：1994-01-01 00:00:00
abstract：:When perichondrium-free pieces of embryonic quail epiphyseal cartilage are incubated on the chorioallantoic membranes of chick embryos, 2 developmental changes are observed. First, most grafts develop a periosteum in which the osteoblasts and osteocytes are of donor, i.e., chondrocytic origin. No such periosteum is ob...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-197711000-00042
更新日期：1977-11-01 00:00:00
abstract：BACKGROUND:Cancer and spinal surgery are both considered risk factors for venous thromboembolism (VTE). However, the risk of symptomatic VTE for patients undergoing surgery for spine metastases remains undefined. QUESTIONS/PURPOSES:The purposes of this study were to: (1) identify the proportion of patients who develop...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/CORR.0000000000000733
更新日期：2019-07-01 00:00:00
abstract：:The etiology of hallux valgus, method of patient selection, technique of carrying out a modified McBride procedure, and possible surgical pitfalls associated with the procedure are discussed. The results of the McBride procedure and the limitations that the authors feel should be placed upon the procedure were stresse...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1981-06-01 00:00:00
abstract：BACKGROUND:The benefits of robotic techniques for implanting femoral components during THA are still controversial. QUESTIONS/PURPOSES:The purpose of this study was to prospectively compare the results and complications of robotic-assisted and hand-rasping stem implantation techniques. METHOD:The minimum followup was...
journal_title：Clinical orthopaedics and related research
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1007/s11999-009-1158-2
更新日期：2010-04-01 00:00:00
abstract：:Regan and Morrey proposed a 3-type coronoid fracture classification observing that the incidence of concommitant elbow dislocation was proportional to fragment size. Elbow instability associated with coronoid fractures presumably is related to disrupted bony architecture and ineffective stabilizers attached to the fre...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1995-11-01 00:00:00
abstract：:A quantitative three-dimensional measurement method, radiographic stereophotogrammetry (SPG), was employed to assess the relation between early subsidence of the femoral prosthesis after total hip arthroplasty (THA) and subsequent clinical course. The SPG technique and the authors' error control mechanisms are describ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1985-12-01 00:00:00
abstract：:The design features of an implant system can be crucial to the success of cementless total knee arthroplasty (TKA). The implant system described in this study incorporates anatomic features including an asymmetric tibial tray that is smaller laterally than medially, and a deep trochlear-grooved femoral component. Two ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1991-08-01 00:00:00
abstract：BACKGROUND:Earlier results with porous tantalum acetabular cups in revision THA generally have been favorable. Recently there has been some evidence presented that porous tantalum cups might decrease the risk of rerevision in the setting of revision hip surgery performed owing to prosthetic joint infection (PJI). As th...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,多中心研究
doi：10.1007/s11999-017-5417-3
更新日期：2017-12-01 00:00:00
abstract：:Epiphyseal stapling is considered a safe, effective method of correcting angular deformities of the knee in growing children. A study of the underlying biochemical events would contribute to a better understanding of the control of longitudinal growth rate in epiphyseal growth plates and of the molecular pathology of ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1987-05-01 00:00:00
abstract：:Sixteen patients (mean age, 31.6 years) whose elbow flexor power was absent or inadequate were treated with the following muscle transfer procedures: (1) bipolar pectoralis major transfer in five, (2) unipolar or bipolar latissimus dorsi transfer in five, (3) free latissimus dorsi transfer in three, and (4) triceps-to...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1989-08-01 00:00:00
abstract：BACKGROUND:Biopsies of musculoskeletal tumors lead to alterations in treatment in almost 20% of cases. Control charts are useful to ensure that a process is operating at a predetermined level of performance, although their use has not been demonstrated in assessing the adequacy of musculoskeletal biopsies. QUESTIONS/P...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-012-2544-8
更新日期：2013-03-01 00:00:00
abstract：:Observable objects in biology and medicine extend across a range of scale, from individual molecules and cells; through the varieties of tissue and interstitial interfaces; and to complete organs, organ systems, and body parts. These objects include functional attributes of these systems such as biophysical, biomechan...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：
更新日期：2006-01-01 00:00:00
abstract：:We identified changes in proapoptotic and extracellular matrix-related gene expression with prolonged storage of fresh osteochondral allografts using gene array analysis to better understand the process of graft degradation during storage. Six human distal femurs were obtained according to standard organ harvesting pr...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/01.blo.0000187058.42820.39
更新日期：2006-01-01 00:00:00
abstract：UNLABELLED:While low-grade juxtacortical and low-grade intramedullary osteogenic sarcomas are histologically indistinguishable, they have been studied as separate entities. We retrospectively reviewed the clinical, radiographic, histologic features and treatment of 59 patients treated surgically to compare the rate of ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-008-0251-2
更新日期：2008-06-01 00:00:00
abstract：:Laboratory experiments show the following relationships between electricity and bone: (1) stressed bone exhibits electronegativity in areas of compression, (2) living, nonstressed bone exhibits electronegativity in areas of bone growth and healing, and (3) the application of low magnitude direct current to bone induce...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1977-05-01 00:00:00
abstract：:Both primary repair and late substitution of anterior cruciate ligaments can be accomplished by intra-articular methods. This principle is to provide temporary struts that are initially avascular but can later undergo revascularization and metaplasia to form a new ligament. The graft does afford initial support, howev...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1979-09-01 00:00:00
abstract：:A review of clinical records and radiographs revealed that five of 10 patients with conjoined twinning (three of six ischiopagus and two of two pyopagus twins) had congenital vertebral anomalies including hemivertebrae (3), multiple thoracic anomalies (1), right hemisacral agenesis (1), and three lumbar vertebra (1). ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-200012000-00017
更新日期：2000-12-01 00:00:00
abstract：:The effects of postoperative epidural infusions using local anesthetic and narcotic were assessed in reference to lower extremity blood flow. Nineteen patients who underwent unilateral total hip arthroplasty were randomly assigned to receive a postoperative epidural infusion of either 5 microg/ml fentanyl or 5 microg/...
journal_title：Clinical orthopaedics and related research
pub_type： 临床试验,杂志文章,随机对照试验
doi：
更新日期：1997-01-01 00:00:00
abstract：:Rotator cuff repair is one of the most common surgical procedures done in the shoulder. Traditionally, repair has required an open incision with release of a portion of the deltoid from the acromion. In the past decade, an arthroscopically-assisted, mini-open approach has gained popularity. This has been facilitated b...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：
更新日期：2001-09-01 00:00:00
abstract：:Several extracellular matrices are formed by healing fractures, and the collagens within these matrices have been identified in rabbit and rat fracture models. Type III collagen is the major collagen of the fibrous matrix that forms along the periosteal surface. Type I collagen is secreted in large amounts as trabecul...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：
更新日期：1990-06-01 00:00:00
abstract：:Evidence from studies on migration raises serious doubts regarding the part played by fatigue failure of acrylic bone cement in the genesis of aseptic loosening of the components of total hip arthroplasties. Moreover, the viscoelastic properties of cement raise serious doubts concerning the relevance of conventional l...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：10.1097/00003086-199810000-00026
更新日期：1998-10-01 00:00:00
abstract：:Overweight patients are often considered poor candidates for total knee arthroplasty. For assessment of the validity of this proscription, two-year follow-up data from 109 patients were analyzed. Hospital for Special Surgery Scores were recorded, roentgenograms were inspected for radiolucencies, and isokinetic strengt...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1992-03-01 00:00:00
abstract：BACKGROUND:The suture-tendon interface is often the weakest link in tendon-to-tendon or tendon-to-bone repair. Genipin is an exogenous collagen crosslink agent derived from the gardenia fruit that can enhance suture force to failure of the tendon-suture interface. Viable methods for intraoperative clinical delivery of ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999.0000000000000247
更新日期：2018-05-01 00:00:00
abstract：:One hundred eighty five consecutive patients underwent anterior decompression, stabilization, and/or fusion procedures of the thoracolumbar spine. At 1 year or more followup, the incidence of complications was analyzed. There were no iatrogenic spinal neurologic deficits and no deep wound infections. The most common c...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1994-09-01 00:00:00
abstract：UNLABELLED:The evaluation and treatment of aggressive bone tumors continue to be diagnostic and therapeutic challenges for orthopaedic surgeons. Despite compelling data regarding the hazards of biopsy, incomplete preoperative evaluation, inappropriate biopsy techniques, and premature surgical interventions continue to ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-008-0546-3
更新日期：2009-02-01 00:00:00
abstract：:A new mouse osteopetrotic mutation, osteosclerosis, has been examined with respect to rickets. These osteopetrotic mice were hypocalcemic and hypophosphatemic, and had greatly thickened epiphyseal plates with abnormalities in matrix vesicles when compared with normal littermates. Such biochemic and morphologic manifes...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1985-12-01 00:00:00
abstract：:In many designs of total knee arthroplasty, the patella with one central peg has been replaced by a patella with three small pegs for cement fixation. There have been recent reports of failure of this design. This is a prospective, consecutive study of two types of patella component fixation in 228 posterior-stabilize...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-200111000-00012
更新日期：2001-11-01 00:00:00
abstract：UNLABELLED:Giant cell tumors of bone are sometimes locally aggressive and may metastasize, although uncommonly. We attempted to identify associations of clinical and histopathologic parameters with metastasis, the long-term outcome with metastases, and the best treatment. We identified distant metastases in 24 of 470 p...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-009-0966-8
更新日期：2010-03-01 00:00:00
abstract：:The Hall model of experimental arthritis of the knee (excision of the lateral femoral condyle) offers a unique way of investigating the earliest changes of degenerative arthritis. Predictable degeneration of the lateral tibial plateau occurs when there is lack of contact with an opposing surface. Previous work by Hall...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1977-06-01 00:00:00
