Abstract：
:This article briefly reviews the history of the use of feedback in artificial limbs. It suggests that researchers have concentrated unduly upon the use of feedback to control prehensile force or joint angle and advocates a broader perspective. In that context, the article presents a comprehensive view of the need for feedback in myoelectric prostheses. The difficulties of designing transducers to meet the stringent demands of prosthetics applications are considered, and problems inherent in several alternatives are identified. Various means of conveying feedback information to the amputee are reviewed in some detail. The concept of feedback in control systems is introduced in the context of closed-loop control of a prosthesis. The surprisingly good performance of skilled users of myoelectric prostheses is noteworthy implying that the distinction between sensory and proprioceptive feedback may be somewhat artificial. By integrating these two feedback types a satisfactory feedback system may become an attainable goal.
journal_name
Clin Orthop Relat Resjournal_title
Clinical orthopaedics and related researchauthors
Scott RNsubject
Has Abstractpub_date
1990-07-01 00:00:00pages
58-63issue
256eissn
0009-921Xissn
1528-1132pub_type
杂志文章,评审abstract：:Between 1976 and 1980, 81 knees in 59 patients 75 years of age or older, underwent primary total knee arthroplasty with a cemented, condylar femoral component and a cemented, moderately conforming, all polyethylene tibial component. All patients were followed up until death, revision surgery, or for a minimum of 10 ye...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1999-10-01 00:00:00
abstract：:Venous drainage from the femur of adult animals is not interrupted by occlusion of the blood supply in the soft tissue surrounding the diaphysis of the bone. Previous studies have shown that the metaphyseal drainage system is capable of rapidly transporting particles up to 100 mu in diameter to the lungs. The present ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1991-01-01 00:00:00
abstract：:Nutrient diffusion across the vertebral endplate can occur by convection (bulk flow) or diffusion. Previous studies, using animal models, suggested diffusion as the primary mechanism of small-solute transport but did not adequately determine the contribution of bulk flow to total nutrient transport. This study was des...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1986-09-01 00:00:00
abstract：:This study evaluated the quality and quantity of osseointegration of two thicknesses of hydroxyapatite coating on press-fit, porous-coated titanium implants in a canine hip model. In 12 dogs, titanium press-fit porous-coated prostheses were implanted. The stems had a 50-microm thickness hydroxyapatite coating, 100-mic...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-200111000-00058
更新日期：2001-11-01 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：:The etiology of spondylolisthesis is multiple according to the type of the vertebral slipping. In fact all the following basic pathological processes may be involved: congenital malformation of the upper sacrum in the dysplastic spondylolisthesis; growth dysplasia of the vertebral arch in the "isthmic spondylolisthesi...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1976-06-01 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：:Osteoblastic and chondroblastic (i.e., osteogenic) cells belong to the stromal cell system, which is associated with bone marrow, and bone and is separate from the hematopoietic stem-cell system. Stromal stem cells are capable of producing reticular, fibroblastic, osteogenic, and adipose stromal lines. Marrow-derived ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：
更新日期：1990-03-01 00:00:00
abstract：:Recent surgical advancements in anterior cruciate ligament reconstructions have led to better results in the treatment of knee injuries. Functional knee braces have been prescribed in greater number, leading to an increased production of commercially available braces. The effectiveness of braces remains controversial ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：
更新日期：1995-08-01 00:00:00
abstract：:Since 1969, 144 patients with previously untreated Ewing's sarcoma of bone were entered in prospective protocols at the University of Florida. From 1969 through 1981, three institutional protocols were used, and some patients were entered into the First Intergroup Ewing's Sarcoma Study. Starting in 1982, an attempt wa...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-200204000-00033
更新日期：2002-04-01 00:00:00
abstract：:During a ten-year period (1978-1988), 143 of 1386 patients with proximal humeral fractures were treated with internal osteosynthesis. Ninety-seven proximal humeral osteosynthesis cases had adequate documentation, and 77 (80%) were available for clinical review. The 97 fractures were graded by the AO/ASIF classificatio...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：
更新日期：1993-07-01 00:00:00
abstract：:Idiopathic subluxation of the radial head (ISRH) is a rare entity that is separate from congenital dislocations of the radial head, both symptomatically and radiographically. ISRH causes pain and restriction of rotation. A dome-shaped radial head, a hypertrophied ulna, and a hypoplastic capitellum are not present in I...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1987-01-01 00:00:00
abstract：:Electron microscopic evaluation was investigated in surgical specimens of interdigital neuroma. Edema of the endoneureum, fibrosis beneath the perineurium, axonal degeneration and necrosis suggest nerve damage occurs secondary to mechanical impingement in the etiology of interdigital neuroma. ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1991-10-01 00:00:00
abstract：:For stabilization of the lower thoracic and lumbar spine, an external spinal skeletal fixation (ESSF) system has been developed and clinically used since 1977. The system consists of two pairs of Schanz screws and an adjustable external fixation device. The Schanz screws are firmly anchored through the pedicles into t...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1984-10-01 00:00:00
abstract：:Varus deformity is a common finding in candidates for total knee arthroplasty (TKA), but very little has been written concerning the problems encountered in correcting these deformities at the time of arthroplasty. Compared to patients without deformities, this group of patients require more attention to the technical...
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：: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：:Professionalism as a subject must be taught explicitly. This requires an institutionally accepted definition which then must be learned by both students and faculty. This directs what will be taught, expected, and evaluated. Of equal importance, and more difficult to achieve, is the incorporation of the values and att...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：10.1097/01.blo.0000229274.28452.cb
更新日期：2006-08-01 00:00:00
abstract：:The Zickel intramedullary fixation device was used to treat 26 patients with subtrochanteric or impending subtrochanteric fractures. The use of this device has advantages over traditional traction methods as well as nail plate fixation. Twenty-two patients were ambulatory within one month following surgery. Healing of...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1979-06-01 00:00:00
abstract：:Onset of firing for the quadriceps, hamstrings, and gastroc soleus groups during running, both on a treadmill and over ground, was determined in seven normal adult male subjects. Surface and wire electrode data were collected simultaneously from 959 individual gait cycles. The mean velocity over ground was 274 +/- 38 ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1983-06-01 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：BACKGROUND:We previously reported the 5-year followup of hips with femoroacetabular impingement (FAI) that underwent surgical hip dislocation with trimming of the head-neck junction and/or acetabulum including reattachment of the labrum. The goal of this study was to report a concise followup of these patients at a min...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-014-4025-8
更新日期：2015-04-01 00:00:00
abstract：:The wear particles of cobalt chrome alloy and titanium alloy have been implicated as a cause of aseptic loosening of prostheses. It is thought that their ability to induce either cell death or the release of mediators that induce bone resorption contributes to this loosening. This study was designed to test the hypoth...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-199602000-00045
更新日期：1996-02-01 00:00:00
abstract：:The Fabella Syndrome is recognized by a sharp pain, local tenderness, and intensification of pain in the area of the fabella by full extension of the knee. After diagnostic tests with local anesthesia and ineffective conservative treatment, surgical extirpation may produce lasting relief of symptoms. ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1977-07-01 00:00:00
abstract：:Orthopaedic surgeons can enjoy good patient and physician relationships and be happy in the work setting. Here's how. It is important to know oneself. Explore one's spirituality. Maintain humor, humility, and humanity. Make only original mistakes. Attend to one's mental health. Invest time, thought, and energy in inte...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-199904000-00032
更新日期：1999-04-01 00:00:00
abstract：:For many years knee arthrodesis has been recommended for patients with severe degenerative disease complicated by obesity, venous insufficiency or old sepsis. Recently, failed total knee arthroplasties are being treated by arthrodesis, but these new indications entail new and difficult circumstances. A biplane fixatio...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1981-10-01 00:00:00
abstract：:Osteopetrosis is a metabolic bone disease characterized by a systemic increase in skeletal mass. It results from a defect in the production or function of osteoclasts and is inherited in nine genetically distinct osteopetrotic animal mutations and man. Studies of these mutations have revealed that osteopetrosis is a c...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：
更新日期：1993-09-01 00:00:00
abstract：:The 2001 Institute of Medicine report entitled Unequal Treatment: Confronting Racial and Ethnic Disparities in Health Care pointed out extensive healthcare disparities in the United States even when controlling for disease severity, socioeconomic status, education, and access. The literature identifies several groups ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：10.1007/s11999-009-0993-5
更新日期：2009-10-01 00:00:00
abstract：:Femoral head collapse occurred in a 20-year-old ballet dancer with anorexia nervosa. The patient developed anorexia nervosa at the age of 11 years and had short stature. The condition never resolved, and she developed pain and stiffness in the right hip at the age of 18 years, with documentation of femoral head collap...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1990-02-01 00:00:00
abstract：:Detailed, long-term studies of cemented total hip arthroplasties clearly show that failure of fixation of the acetabular component is a major problem, with a rising incidence and an unusual complexity. By finite element analysis the stress distribution in the human acetabulum before and after total hip arthroplasty wa...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1984-03-01 00:00:00
abstract：BACKGROUND:Soluble factors released from chondrocytes can both enhance and induce chondrocyte-like behavior in cocultured dedifferentiated cells. The ability to similarly prime and modulate biosynthetic activity of differentiated cells encapsulated in a three-dimensional environment is unknown. QUESTIONS/PURPOSES:To u...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-011-1772-7
更新日期：2011-10-01 00:00:00
