Abstract:
:The Neer I (polyethylene glenoid), Neer II (plastic glenoid surface with metal backing), Cofield, and Gristina monospherical total shoulder prostheses were tested for joint subluxation resistance and glenoid component fixation strength. Synthetic glenoid models with consistent structural properties and standard under-cutting geometry were used for glenoid component fixation with bone cement. It was found that joint subluxation resistance varied linearly with axial compressive force applied. Higher subluxation strength was associated with the amount of curvature of the glenoid articulating surface. Consequently, joint stability was consistently higher for the Gristina design, and all had lower resistance in the anteroposterior direction. After complete joint dislocation under high axial compressive force, the polyethylene material at the site of subluxation experienced gross plastic deformation. The fixation strength of the glenoid component was lowest for the Neer I design and highest for the Cofield design. Fatigue loading at the joint did not seem to affect the glenoid component fixation strength. In general, all glenoid components appeared to have sufficient fixation strength against normal shoulder joint forces except the Neer I design. Loosening and fracture of the plastic glenoid component may occur under excessive loads.
journal_name
Orthopedicsjournal_title
Orthopedicsauthors
Fukuda K,Chen CM,Cofield RH,Chao EYsubject
Has Abstractpub_date
1988-01-01 00:00:00pages
141-9issue
1eissn
0147-7447issn
1938-2367journal_volume
11pub_type
杂志文章相关文献
ORTHOPEDICS文献大全abstract::Venous blood flow rate in the lower extremity after applying different pneumatic compression devices was evaluated. Five healthy individuals, aged 21-35, were recruited for this study. The ability of six different pneumatic compression devices to increase femoral venous blood flow velocity was analyzed and compared to...
journal_title:Orthopedics
pub_type: 杂志文章
doi:
更新日期:2001-03-01 00:00:00
abstract::Obesity has become a leading public health issue in the United States. The goal of this study was to examine whether patients experience a significant change in body mass index (BMI) or weight after total joint arthroplasty. Previous studies have not corrected for the natural, annual positive BMI change in North Ameri...
journal_title:Orthopedics
pub_type: 杂志文章
doi:10.3928/01477447-20100429-13
更新日期:2010-06-09 00:00:00
abstract::Radiolucencies are frequently observed in the carpus, often in asymptomatic patients. Evaluation of the clinical significance of these radiolucent areas is aided by use of bone scanning. In this case, correlation of the physical exam, bone scan and tomograms allowed effective direct surgical treatment of a symptomatic...
journal_title:Orthopedics
pub_type: 杂志文章
doi:
更新日期:1986-02-01 00:00:00
abstract::Few complications of surgery are as devastating as paraplegia in a patient who has been operated on for correction of a spinal abnormality. Early warning of potential damage to the spinal cord is highly desirable. This is possible with cortical evoked potentials. It measures electroencephalographic activity after peri...
journal_title:Orthopedics
pub_type: 社论
doi:10.3928/0147-7447-19840101-06
更新日期:1984-01-01 00:00:00
abstract::Twenty-two patients with fibrous dysplasia in the femoral neck or trochanteric area were treated with curettage and bone grafting with a sliding hip compression screw and plate. Follow-up ranged from 2 to 6 years (average: 4 years). Fourteen patients had monostotic and 8 had polyostotic disease. Four patients had path...
journal_title:Orthopedics
pub_type: 临床试验,杂志文章
doi:
更新日期:1998-12-01 00:00:00
abstract::Locked intramedullary nailing is the current standard of treatment for femoral shaft fractures and has low complication rates. Bent femoral intramedullary nails resulting from secondary trauma are rare and technically challenging. This article describes a case of a 36-year-old man who presented with a bent femoral int...
journal_title:Orthopedics
pub_type: 杂志文章
doi:10.3928/01477447-20120222-32
更新日期:2012-03-07 00:00:00
abstract::Dislocation of the peroneal tendons associated with calcaneus fractures should be repaired during fracture fixation to prevent complications. The only documented approach for repair is by proximal extension of the vertical limb of the lateral extensile approach to the calcaneus. However, enlarging the inherently fragi...
journal_title:Orthopedics
pub_type: 临床试验,杂志文章
doi:10.3928/01477447-20140124-05
更新日期:2014-02-01 00:00:00
abstract::Sacrectomy is intended to resect aggressive local and life-threatening disease. Reconstruction can be difficult. This article reports on the use of sacrectomy for tumor and tumor-like conditions. Procedures included 9 partial, 7 subtotal, 7 hemi-, and 4 total sacrectomies. Of 22 patients with primary malignant disease...
journal_title:Orthopedics
pub_type: 杂志文章
doi:
更新日期:2005-03-01 00:00:00
abstract::Symptomatic neuromas of the sural nerve are a rare but significant cause of pain and debilitation in athletes. Presentation is usually in the form of chronic pain and dysesthesias or paresthesias of the lateral foot and ankle. Treatment traditionally ranges from conservative measures, such as removing all external com...
journal_title:Orthopedics
pub_type: 杂志文章
doi:10.3928/01477447-20151020-15
更新日期:2015-11-01 00:00:00
abstract::Heterotopic ossification is a known complication of traumatic injuries. To minimize iatrogenic complications during excision, an understanding of anatomic relationships is essential. Current imaging modalities, such as computed tomography and plain radiographs, are limited to providing a 2-dimensional representation o...
journal_title:Orthopedics
pub_type: 杂志文章
doi:10.3928/01477447-20130327-06
更新日期:2013-04-01 00:00:00
abstract::This case presented a 17-year-old patient with persistent complaints localized to the right patellofemoral joint. Clinical examination demonstrated increased medial translation of the patella on manual stress. In contrast to previous published reports on medial patellar subluxation, this patient had not undergone prio...
journal_title:Orthopedics
pub_type: 杂志文章
doi:
更新日期:1998-07-01 00:00:00
abstract::Arthroscopy during ulnar shortening osteotomy for ulnar impaction syndrome is subject to debate regarding its clinical usefulness. The purposes of this study were to analyze the arthroscopic findings in patients who underwent ulnar shortening osteotomy and to assess the role of arthroscopic evaluation during osteotomy...
journal_title:Orthopedics
pub_type: 杂志文章
doi:10.3928/01477447-20131120-12
更新日期:2013-12-01 00:00:00
abstract::Autologous collagen-induced chondrogenesis is a novel, single-staged arthroscopic cartilage repair technique using microdrilling and atelocollagen or fibrin gel application under carbon dioxide insufflation. Atelocollagen is a highly purified type I collagen obtained following the treatment of skin dermis with pepsin ...
journal_title:Orthopedics
pub_type: 杂志文章
doi:10.3928/01477447-20130426-30
更新日期:2013-05-01 00:00:00
abstract::Avulsion fractures involving the radial wrist extensor tendons are extremely rare. Only 8 avulsion fractures of the extensor carpi radialis longus and 7 avulsion fractures of the extensor carpi radialis brevis have been previously reported. We know of no case involving an isolated avulsion fracture of the base of the ...
journal_title:Orthopedics
pub_type: 杂志文章
doi:
更新日期:2009-03-01 00:00:00
abstract::The purpose of this study was to investigate the effect of general anesthesia on preoperative passive hip range of motion (ROM) in patients undergoing hip arthroscopy for various indications. A total of 260 consecutive patients undergoing hip arthroscopy were included in this study. Passive hip ROM was evaluated bilat...
journal_title:Orthopedics
pub_type: 杂志文章
doi:10.3928/01477447-20160811-03
更新日期:2016-11-01 00:00:00
abstract::Despite significant research documenting the detrimental effects of tobacco, the orthopedic literature lacks evidence regarding how surgeons alter their management of elective surgery when patients use nicotine. To better understand how patients' use of nicotine influences orthopedic surgeons' pre- and postoperative m...
journal_title:Orthopedics
pub_type: 杂志文章
doi:10.3928/01477447-20160901-02
更新日期:2017-01-01 00:00:00
abstract::Tumor excision surgeries of the spine present a distinct challenge regarding the maintenance of spinal cord blood supply because they often require preoperative embolization of segmental arteries, ligation of the corresponding nerve roots, and circumferential exposure of the dural sac. The authors present a case of de...
journal_title:Orthopedics
pub_type: 杂志文章
doi:10.3928/01477447-20181023-07
更新日期:2019-01-01 00:00:00
abstract::This article describes the clinical findings, roentgenographic manifestations, gross and microscopic pathology, treatment, and results of 24 cases of pigmented villonodular synovitis treated at Henry Ford Hospital over a period of 25 years. We conclude that synovectomy is the treatment of choice, and we have experienc...
journal_title:Orthopedics
pub_type: 社论
doi:10.3928/0147-7447-19800801-05
更新日期:1980-08-01 00:00:00
abstract::The effect of recombinant human erythropoietin on autologous blood donation was investigated in 73 rheumatoid arthritis patients who underwent hip or knee arthroplasty. Autologous blood donation of 400 mL was successful with recombinant human erythropoietin (12,000 U per week), and no homologous blood was required. Th...
journal_title:Orthopedics
pub_type: 临床试验,杂志文章,随机对照试验
doi:
更新日期:2001-01-01 00:00:00
abstract::This article examines a rare association of carpal tunnel syndrome and trigger finger produced by a single flexor tendon tumor. Examination and treatment is also discussed. ...
journal_title:Orthopedics
pub_type: 社论
doi:10.3928/0147-7447-19810301-07
更新日期:1981-03-01 00:00:00
abstract::Treatment of posterolateral tibial plateau fractures is controversial, and information regarding this specific fracture pattern is lacking. The purpose of this study was to elucidate the frequency and morphological features of posterolateral articular fragments in tibial plateau fractures. A retrospective radiographic...
journal_title:Orthopedics
pub_type: 杂志文章
doi:10.3928/01477447-20130920-16
更新日期:2013-10-01 00:00:00
abstract::Recombinant human bone morphogenetic protein-2 (rhBMP-2) is an osteoinductive protein that plays a pivotal role in bone growth and regeneration. Studies conducted in many mammalian species and, most recently, human clinical studies, have provided definitive evidence of the ability of rhBMP-2 to induce bone. The findin...
journal_title:Orthopedics
pub_type: 临床试验,杂志文章,多中心研究
doi:
更新日期:1999-07-01 00:00:00
abstract::We evaluated the accuracy of navigation systems for measuring the mechanical axis in patients undergoing total knee arthroplasty and in the synthetic bone model. Infrared optical and electromagnetic navigation systems were compared. Both systems were found to be accurate and reproducible in an experimental environment...
journal_title:Orthopedics
pub_type: 杂志文章
doi:
更新日期:2008-10-01 00:00:00
abstract::With advanced surgical techniques, instrumentation, and implants, arthroscopic rotator cuff repair has become increasingly popular. As the techniques continue to evolve, so do the methods by which the repairs are tested. Cyclic loading has shown to better replicate postoperative motion after cuff repair. Recently, cyc...
journal_title:Orthopedics
pub_type: 杂志文章
doi:10.3928/01477447-20091124-12
更新日期:2010-01-01 00:00:00
abstract::Bisphosphonates are the most common medication used to treat patients with documented osteoporosis. Recently, reports have associated long-term bisphosphonate use with low-energy femur fractures. While no definitive mechanism has been associated, bisphosphonate use has been strongly implicated. This article presents t...
journal_title:Orthopedics
pub_type: 杂志文章
doi:10.3928/01477447-20100826-31
更新日期:2010-10-11 00:00:00
abstract::The activity of eight antimicrobial agents which might be used in the treatment of staphylococcal osteomyelitis was tested under anaerobic conditions similar to those found in chronically infected bone. An agar-dilution method was employed to determine the minimum inhibitory concentrations of tobramycin, vancomycin, t...
journal_title:Orthopedics
pub_type: 杂志文章
doi:
更新日期:1988-09-01 00:00:00
abstract::This article describes the complex relationship between graft, bone, and biologic interference screw. Orthopedic surgeons have just begun to understand this complex biologic relationship. Clinical outcome measurements tell very little about the biology in bone tunnels. ...
journal_title:Orthopedics
pub_type: 杂志文章
doi:10.3928/01477447-20080601-31
更新日期:2008-06-01 00:00:00
abstract::Although ankle arthroscopy has been limited by the restricted available joint space, the use of distraction in addition to joint distention has permitted improved surgical and diagnostic examination of the ankle. In contrast to previously described methods of distraction, a simple, effective, and noninvasive method of...
journal_title:Orthopedics
pub_type: 杂志文章
doi:
更新日期:1989-10-01 00:00:00
abstract::We performed 560 minimally invasive unicompartmental knee arthroplasties in patients with osteoarthritis using the Oxford phase 3 prosthesis since January 2002. For the prospective analysis, clinical and radiographic assessments were carried out preoperatively and regularly followed after surgery. Ninety-five cases we...
journal_title:Orthopedics
pub_type: 杂志文章
doi:
更新日期:2007-05-01 00:00:00
abstract::Hemiarthroplasty (HA) of the shoulder has several potential advantages over total shoulder arthroplasty (TSA), particularly in the elderly population. This study reviewed long-term results of HA and TSA in patients older than 70 years with glenohumeral osteoarthritis. During a 30-year period, 403 shoulders had undergo...
journal_title:Orthopedics
pub_type: 杂志文章
doi:10.3928/01477447-20180621-03
更新日期:2018-07-01 00:00:00