Abstract：
:A previously validated three-dimensional finite element model was used to study how several total hip component design and surgical placement variables contribute to resisting the propensity for posterior dislocation in the case of leg crossing in an erectly seated position. The computational formulation incorporated treatments of polyethylene material nonlinearity and large displacement sliding contact. The primary outcome measures were the peak intrinsic moment developed to resist dislocation, and the ranges of motion before neck on lip impingement and before frank dislocation. Modifications of the acetabular linear design (chamfer bevel angle, lip breadth, head center inset) involved trading off improved peak resisting moment for compromised range of motion and vice versa. Increases of head size led to substantial improvements in peak resisting moment, but if the head to neck diameter ratio was held constant, had almost no influence on the component range of motion. For the leg crossing event studied, increased component anteversion, and even more so increased tilt (less net abduction), achieved improvements in range of motion and in peak resisting moment, but these changes imply diminished resistance to anterior dislocation from extension and adduction motion inputs.
journal_name
Clin Orthop Relat Resjournal_title
Clinical orthopaedics and related researchauthors
Scifert CF,Brown TD,Pedersen DR,Callaghan JJdoi
10.1097/00003086-199810000-00016subject
Has Abstractpub_date
1998-10-01 00:00:00pages
152-62issue
355eissn
0009-921Xissn
1528-1132pub_type
杂志文章abstract：BACKGROUND:Ankle arthrodesis may be achieved using the Ilizarov method. Comorbidities, such as diabetes, Charcot neuroarthropathy, osteomyelitis, leg length discrepancy, and smoking, can make an ankle fusion complex and may be associated with lower rates of healing. QUESTIONS/PURPOSES:We asked if (1) smoking and other...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-012-2470-9
更新日期：2012-10-01 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：:Periacetabular osteotomy is an extremely effective treatment for the spherical dysplastic hip without significant secondary osteoarthrosis. Yet, the reliability of the procedure in patients with some degree of secondary osteoarthritis, asphericity, or associated deformities remains undefined. The purpose of the curren...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：
更新日期：2002-12-01 00:00:00
abstract：BACKGROUND:Outcomes after intrasynovial tendon repair are highly variable. An intense inflammatory cascade followed by a delayed healing response can cause adhesion formation and repair-site failure that severely impair the function of repaired digits. No effective remedies exist to fully address these issues. Cell- an...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-017-5369-7
更新日期：2017-09-01 00:00:00
abstract：:Sixty-four total articular replacement arthroplasties were performed in 60 patients with an average follow-up period of 24 months. Ninety-three percent of the patients had little or no pain at the time of follow-up examination; 83% of the patients were able to walk unlimited distances; 97% of the patients had a postop...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1984-05-01 00:00:00
abstract：:The use of a peritoneal catheter enhances diagnosis using arthroscopy by affording a clear visibility of the knee joint. The accuracy in diagnosis is significantly enhanced using this method of irrigation. No better method of irrigation is available for cases of acute knee joint injuries. ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1977-10-01 00:00:00
abstract：BACKGROUND:Septic arthritis is frequently associated with adjacent infections including osteomyelitis and subperiosteal and intramuscular abscesses. While often clinically indiscernible from isolated septic arthritis, the diagnosis of adjacent infections is important in determining the need for additional surgical inte...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999.0000000000000019
更新日期：2018-01-01 00:00:00
abstract：:Prompt diagnosis of proximal lower extremity deep vein thrombosis in outpatients is critical because of the risk of pulmonary embolism. Our purpose was to determine the accuracy of orthopaedists' clinical decisions regarding the diagnosis of proximal deep vein thrombosis in outpatients. A nationally representative ran...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/01.blo.0000152599.53574.a5
更新日期：2005-03-01 00:00:00
abstract：BACKGROUND:There is no consensus as to which surgical approach to the treatment of giant cell tumor of bone is most appropriate or which patients are at a higher risk for recurrence or metastasis. QUESTIONS/PURPOSES:Therefore, we asked: (1) Are there subsets of patients who are associated with a more recalcitrant dise...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-011-2172-8
更新日期：2012-03-01 00:00:00
abstract：:Pathologic fractures of the proximal femur secondary to benign bone tumors often are difficult to treat because of specific anatomic features of this region and the aggressiveness of the tumors. Between 1986 and 1996, 11 patients presented with a pathologic fracture of the proximal femur secondary to a benign bone tum...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-200112000-00032
更新日期：2001-12-01 00:00:00
abstract：:The cases of 11 patients with the syndrome of thrombocytopenia and absent radius (TAR syndrome) who presented at two institutions between 1970 and 1996 were reviewed. Knee deformities have been well documented in thrombocytopenia and absent radius syndrome, but an inordinate frequency of other lower extremity problems...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-200006000-00024
更新日期：2000-06-01 00:00:00
abstract：:A 27-year-old manual laborer presented with dislocation of the right elbow, complete separation of the radial head at the neck level, and avulsion of the coronoid process. Closed reduction of the elbow resulted in ulnohumeral instability. As an alternative to silastic implant, the radial head was reduced, internally f...
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:Successful brace treatment entails good control of scoliosis with avoidance of surgery. However, achieving curve regression may be an even better radiological result than prevention of curve progression for patients with adolescent idiopathic scoliosis. Vertebral remodeling may occur with well-fitted braces....
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/CORR.0000000000000989
更新日期：2020-02-01 00:00:00
abstract：:The authors investigated the reliability of the safe area, which previously was defined to prevent injury to the superior gluteal nerve during the lateral approach to the hip, and its relation to body height. The distance between the point of entry of the superior gluteal nerve into the gluteus medius muscle and the g...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/01.blo.0000068768.86536.7e
更新日期：2003-07-01 00:00:00
abstract：UNLABELLED:bTwo-staged exchange with delayed reimplantation of a new prosthesis is considered by many to be the preferred method of treatment for deep periprosthetic infection after total hip arthroplasty. Until recently, most authors of previously published reports of this two-staged exchange procedure have used cemen...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/01.blo.0000194312.97098.0a
更新日期：2005-12-01 00:00:00
abstract：:Ten patients with femoral head fractures were evaluated with conventional hip radiographs, computed axial tomography (CT), and pelvic oblique radiographs. The CT scan was used to determine the plane of the fracture within the femoral head. The patient was then positioned with the fracture line parallel to the radiogra...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1993-11-01 00:00:00
abstract：:A stress fracture occurred in a 19-year-old competitive tennis player. Stress fractures are one of the more common problems occurring in vigorous sports. Prevalence, location, and treatment have been well documented, especially in the lower extremity. Stress fractures of the upper extremities are uncommon. ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1986-08-01 00:00:00
abstract：:Although bone stress injuries are common in male military trainees, it is not known how common they are in female trainees. It also is unclear whether asymptomatic bone stress injuries heal if intensive training is continued. We prospectively followed 10 female trainees of a military Reserve Officer Course. The subjec...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-009-0851-5
更新日期：2009-11-01 00:00:00
abstract：:The authors reviewed the use of chemotherapy and anterior/posterior spinal fusion without instrumentation to treat children with extensive spinal tuberculosis and kyphosis. Six children underwent anterior and posterior spinal fusion. All of the patients were followed until after maturity, except for 1 child who died o...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-199604000-00027
更新日期：1996-04-01 00:00:00
abstract：:The shoulder is characterized foremost by its mobility and large range of motion. The glenohumeral joint is notable for its relative lack of bony constraint, relying heavily on the congruent articulating surfaces and surrounding soft tissue envelope for static and dynamic stability. Effective function in the articulat...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：
更新日期：1996-09-01 00:00:00
abstract：:A prospective study of the accuracy of real-time B-mode ultrasonography in detecting deep venous thrombosis in the proximal veins of the lower extremity was conducted in a consecutive series of total knee arthroplasty (TKA) patients. Ascending venography was used as the diagnostic standard. Ninety-six consecutive TKA ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1991-12-01 00:00:00
abstract：:Computer-assisted navigation systems for hip resurfacing arthroplasty are designed to minimize the chance of implant malposition. However, there is little evidence computer navigation is useful in the presence of anatomical deformity. We therefore determined the accuracy of an image-free resurfacing hip arthroplasty n...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-009-0850-6
更新日期：2009-09-01 00:00:00
abstract：BACKGROUND:Polyetheretherketone (PEEK) has a wide range of clinical applications but does not directly bond to bone. Bulk incorporation of osteoconductive materials including hydroxyapatite (HA) into the PEEK matrix is a potential solution to address the formation of a fibrous tissue layer between PEEK and bone and has...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-016-4994-x
更新日期：2016-11-01 00:00:00
abstract：UNLABELLED:Internal hemipelvectomy is performed for pelvic sarcomas when the tumor can be safely resected without sacrificing the entire extremity. Wide exposure and awareness of major neurovascular structures are crucial to the success of this surgery. Various modifications on the standard utilitarian approach have be...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-009-0843-5
更新日期：2009-10-01 00:00:00
abstract：:Ectopic bone formation (EBF) is a well-known complication of total hip arthroplasty (THA). The etiology and pathogenesis are still obscure. An analysis of 119 consecutive patients with 129 primary THAs was performed to identify factors predisposing to ectopic bone formation, its frequency, and its effect on the result...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1988-03-01 00:00:00
abstract：:A prospective comparative study was conducted involving 62 patients to determine the effects and limits of accelerated rehabilitation on clinical outcome. The study focused on whether aggressive rehabilitation after anterior cruciate ligament reconstruction with the doubled semitendinosus and gracilis tendon autograft...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-200204000-00043
更新日期：2002-04-01 00:00:00
abstract：:Mechanically the wrist is the most complex joint in the body, providing a large range of motion in the flexion-extension and radial-ulnar deviation planes. By virtue of the constraints at the radiocarpal level, strong torque may be delivered to the grasping hand for work in the grasping mode through the rotational axi...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1986-01-01 00:00:00
abstract：:Osteonecrosis of the talus secondary to adrenal corticosteroids is rare. The pathophysiology of the disorder is controversial. This is a report of bilateral talar necrosis secondary to steroid medications in a 23-year-old male. Conservative methods of management of the condition are not altogether satisfactory. Bilate...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1977-01-01 00:00:00
abstract：:Limb lengthening using callotasis needs careful preoperative planning and great care during the lengthening period. The most common method used to monitor limb lengthening is plain radiography, but the time of frame removal is still left to the judgment of the surgeon. This paper reviews some of the methods used exper...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：
更新日期：1994-11-01 00:00:00
abstract：UNLABELLED:The subjective concerns and needs of patients who have experienced trauma are important to recovery. However, the mental status of patients with isolated musculoskeletal trauma is not known. Is the mental status of such patients different and does the severity, site, and type of trauma affect this difference...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-008-0326-0
更新日期：2008-09-01 00:00:00
