Abstract：
:A stylized wedge-shaped defect was created in the medial plateau of autopsy specimens of the tibia to evaluate methods for fixation in total knee arthroplasty. A series of tibial components was inserted by five different methods. With each method loading of up to 1780 N axially and a varus load of 1340 N at 28 Newton-meters were assessed. The vertical deflections of the medial and lateral sides of the tray relative to the bone were measured while bending of the stem was recorded with strain gauges. The greatest deflections occurred when cement alone filled the defect; only slight improvement resulted from the addition of two cancellous screws to buttress the metal tray. Further improvement occurred when solid spacers of Plexiglas or metal were used. Finally, the most secure support was obtained with an integral custom-made tibial component. A central stem 70 mm long carried 23%-38% of the axial load, considered useful in the situation of deficient proximal bone. A metal wedge was considered an acceptable alternative to a custom-made component and may prove useful in the reconstruction of tibial bone stock defects.
journal_name
Clin Orthop Relat Resjournal_title
Clinical orthopaedics and related researchauthors
Brooks PJ,Walker PS,Scott RDsubject
Has Abstractpub_date
1984-04-01 00:00:00pages
302-8issue
184eissn
0009-921Xissn
1528-1132pub_type
杂志文章abstract：:During the past 30 years, the orthopaedic oncology group at the Massachusetts General Hospital has treated 648 patients with osteosarcoma centrally located in the bone. Using records maintained in a specifically designed computer system, a study was done to assess the factors that seemed to influence the survival outc...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/01.blo.0000145991.65770.e6
更新日期：2004-12-01 00:00:00
abstract：:Mineral-matrix interactions regulate the process of hydroxyapatite formation in bones and teeth. In mineralizing tissues, many anionic macromolecules bind to mineral. By means of this binding, such molecules are able to regulate the size and shape of the mineral crystals, determine the site of initial crystal depositi...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：
更新日期：1992-08-01 00:00:00
abstract：:Current-generation metal-on-metal hip resurfacing implants (SRAs) have been in widespread global use since the 1990s, and in the United States, specific implants have recently been approved for clinical use. Many recent publications describe short-term survivorship achieved by either implant-designing surgeons or high...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-009-1157-3
更新日期：2010-02-01 00:00:00
abstract：BACKGROUND:Patient expectations may affect their satisfaction and functional outcomes after treatment of musculoskeletal injuries. Although there is evidence that patient expectations of ACL reconstruction (ACLR) are inflated, there is limited knowledge about the relationship between physician and patient expectations ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/CORR.0000000000001082
更新日期：2020-03-01 00:00:00
abstract：:The Oxford method of knee arthroplasty replaces the femoral condyles with convex spherical metal components and relines the tibial plateaus with flat metal components. Free meniscal bearings of polyethylene, spherically concave above and flat below, lie between the fixed metal components, held in place by their geomet...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1986-04-01 00:00:00
abstract：:Lauge-Hansen's system of classification of ankle fractures has been of pioneering importance and when correctly employed has improved the results of conservative treatment. Weber's classification scheme introduced by AO is simpler and more suited for surgical than nonoperative therapy. Both systems have deficiencies. ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1985-10-01 00:00:00
abstract：:The cells of cartilage are constantly remodeling the matrix in which they are suspended. The stimulus to initiate remodeling is probably the chondrocyte's response to physical and or chemical changes in the environment. Heat, pressure, friction, load, pH, and growth are examples of such factors, which, if altered, wou...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：
更新日期：1986-12-01 00:00:00
abstract：BACKGROUND:Although patient-reported outcome measures (PROMs) are helpful to define whether an intervention has improved a patient's status in ways the patient feels are important, they may also serve an empowering educational role; specifically, sharing a patient's scores might help the patient understand his or her p...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999.0000000000000069
更新日期：2018-04-01 00:00:00
abstract：:The age- and sex-specific incidence of hip fractures is central Norway is reported for the periods of 1972-1973 and 1983-1984. The incidence of hip fracture for women had increased by approximately 22% in the intervening period. The region under investigation was subdivided into urban, semirural, and rural areas. The ...
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：:Managing tumors of the proximal fibula may require en bloc resection of the fibular head with the attachment site for the lateral collateral ligament. These resections of the proximal fibula cause unavoidable knee instability. We describe a reconstructive technique intended to minimize that instability. We retrospecti...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/01.blo.0000238781.19692.16
更新日期：2007-01-01 00:00:00
abstract：:Computed tomography (CT) scanning is a useful tool in many areas of orthopedics. This prospective study reviews the authors' experience with CT scans in 73 patients studied prior to total hip arthroplasty. The CT scan is valuable in the primary total hip arthroplasty if the radiograph suggests medial, posterior, or su...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1987-09-01 00:00:00
abstract：:The efficacy of treatment of overuse patellofemoral pain with an elastic knee sleeve with a silicone patellar ring was compared with a simple elastic sleeve and with no treatment in a prospective study of 395 army recruits. During 14 weeks of basic training, 84 knees were diagnosed as having overuse patellofemoral pai...
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：1993-08-01 00:00:00
abstract：BACKGROUND:Because the injured joint has an actively inflammatory environment, the survival and repair potential of cartilage grafts may be influenced by inflammatory processes. Understanding the interactions of those processes with the graft may lead to concepts for pharmacologic or surgical solutions allowing improve...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-011-1826-x
更新日期：2011-10-01 00:00:00
abstract：:A prospective study of 236 patients with neglected femoral neck fractures was done to determine the usefulness of a preoperative classification based on the radiologic changes that occur at the site of the fracture. Thirty-four patients were observed in Group I, 125 patients were observed in Group II, and nine patient...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：2005-02-01 00:00:00
abstract：:Six cases with neurovascular complications, previously unreported as a complication of the Hauser procedure, have been presented. The salient features were unrelenting pain during the first 24 hours postoperatively, completely out of proportion to that which might be anticipated, and with concurrent or subsequent numb...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-197511000-00013
更新日期：1975-11-01 00:00:00
abstract：:This study explored the possibility that altered sensitivities of the dorsal root and dorsal root ganglion to neuroactive substances released in inflamed tissue may be involved in radicular pain. The chemical sensitivities of the dorsal root and ganglion of rats were examined by monitoring nerve membrane potential. En...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-199912000-00036
更新日期：1999-12-01 00:00:00
abstract：:Playground safety recently has received increasing attention from parents and municipalities. Orthopaedic surgeons treat a large number of the more than 350,000 injuries per year sustained on the play areas of this country's school, home, and community play areas. A parent brings a child to the playground for fun, hea...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：10.1097/01.blo.0000057780.39965.2c
更新日期：2003-04-01 00:00:00
abstract：:Pelvic osteotomy for symptomatic hip dysplasia usually is performed for young and adolescent females. Delivery after pelvic osteotomy is a concern for patients of childbearing age. We asked whether the clinical results differed before and after pregnancy, whether eccentric rotational acetabular osteotomy alters the bo...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/BLO.0b013e31803b8d82
更新日期：2007-06-01 00:00:00
abstract：BACKGROUND:Despite the overall success of total joint arthroplasty, patients undergoing this procedure remain susceptible to cognitive decline and/or delirium, collectively termed postoperative cognitive dysfunction. However, no consensus exists as to whether general or regional anesthesia results in a lower likelihood...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：10.1007/s11999-013-3363-2
更新日期：2014-05-01 00:00:00
abstract：:The lumbar syndrome of Paget's disease is classified according to its severity, clinical findings, biochemical factors, and radiological pattern. Pagetoid spinal stenoses may occur in three stages as a progressive clinical syndrome. Several diagnostic procedures, including computerized tomography, (CT) are analyzed to...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1986-05-01 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：:Adult dogs were injected intravenously with 35S-sulphate, and moderately exercised for one to six hours to measure isotope concentrations and profiles throughout the intervertebral discs. The isotope profiles were also observed in control animals that had been under anesthesia between injections and death. In both set...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1982-10-01 00:00:00
abstract：:British surgeons and engineers contributed various types of knee prostheses, including hinged, unconstrained, and semiconstrained prostheses, in the development of total knee arthroplasty. Methods of implant fixation, the place of stems, pegs, the use of special instrumentation, and alignment procedures ensure both in...
journal_title：Clinical orthopaedics and related research
pub_type： 历史文章,杂志文章
doi：
更新日期：1986-09-01 00:00:00
abstract：:A committee was appointed by the American Academy of Orthopaedic Surgeons in 1981 to continue the orthopaedic workforce studies begun by D. Kay Clawson a decade earlier. The committee found that the rapid increase in orthopaedists graduating from residency programs between 1970 and 1982 had resulted in a workforce in ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-200104000-00013
更新日期：2001-04-01 00:00:00
abstract：:A light and electron microscopy investigation was performed on a Leeds-Keio ligament removed because of rupture 18 months after implantation to repair an anterior cruciate ligament. The investigation showed fibrous connective tissue on the plane of the main stress force. There was elastin and adequate vascularization ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1991-06-01 00:00:00
abstract：:Mechanical evaluation of healing fractures in rabbits suggests that tensile testing both minimizes artifacts and permits direct intrinsic determinations of tissue quality. In healing osteotomies in the rabbit fibula, there is a rapid return of stiffness at 16 days, correlating with callus maturation. The failure mode ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1984-01-01 00:00:00
abstract：:Gradual mechanical distraction with the Ilizarov external fixator was used on 28 limbs in 23 patients to correct complex lower-extremity deformities of diverse causes. To determine the accuracy of realignment and deformity correction, the charts and radiographs were reviewed retrospectively. Preoperative long-standing...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1994-04-01 00:00:00
abstract：BACKGROUND:Patient-specific CT-based instrumentation may reduce implant malpositioning and improve alignment in TKA. However, it is not known whether this innovation is an advance that benefits patients. QUESTIONS/PURPOSES:We evaluated (1) the precision of patient-specific TKA by comparing the incidence of outliers in...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,随机对照试验
doi：10.1007/s11999-013-3206-1
更新日期：2013-12-01 00:00:00
abstract：:Eleven patients with Legg-Calvé-Perthes disease (LCP) were examined ultrasonographically for their femoral head deformity. The outline of the cartilaginous femoral head was well demonstrated, and the image obtained corresponded to that observed by arthrography. Using ultrasonography, a simple method was developed to d...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1987-07-01 00:00:00
abstract：:Between March 1991 and December 1992 the authors surgically treated 55 acetabular fractures using a modified Stoppa anterior intrapelvic extensile approach. Indications for utilization of this approach included displaced anterior column or wall fractures, transverse fractures, T shaped fractures, both column fractures...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1994-08-01 00:00:00
