Abstract：
:Walking electromyography was performed in 12 below-knee amputees, who were amputated for peripheral vascular insufficiency. All were at least 1 year post-surgery and had no problems with the fit of their prostheses. Seven were community walkers and five were limited household ambulators. The quadriceps and hamstring muscles exhibited electrical activity during 60% and 64.7% of the gait cycle, respectively, in the active walkers, compared with 44.6% and 53.8% in the limited walkers. Quadriceps muscle activity was initiated almost 10% earlier in the active walkers, while hamstring muscle initiation was similar in both groups. The active walkers were able to maintain quadriceps and increase hamstring muscle activity to compensate for their absent ankle motors, while the limited walkers showed decreased activity in both muscle group. The results of this preliminary study suggest that the dysvascular limited walking below-knee amputee does not use the quadriceps and hamstring muscles for propulsion during walking, and does not appear to reap the benefits of knee joint preservation.
journal_name
Orthopedicsjournal_title
Orthopedicsauthors
Pinzur MS,Asselmeier M,Smith Dsubject
Has Abstractpub_date
1991-05-01 00:00:00pages
535-7; discussion 537-8issue
5eissn
0147-7447issn
1938-2367journal_volume
14pub_type
杂志文章相关文献
ORTHOPEDICS文献大全abstract：:Currently there is a difference of opinion regarding the advisability of unicompartmental total knee replacement. This report describes eight cases from a series of 100 consecutive total knee arthroplasties; results averaged 85.5 by the Cleveland Clinic knee evaluation forms. The followup period averages 37.4 months, ...
journal_title：Orthopedics
pub_type： 社论
doi：10.3928/0147-7447-19800401-04
更新日期：1980-04-01 00:00:00
abstract：:The incidence of total knee replacement in the United States more than doubled between 1999 and 2008, increasing from approximately 263,000 to 616,000 cases. The purpose of this study is to evaluate the claim that there has been a disproportionate increase in knee replacements among younger patients owing to expanding...
journal_title：Orthopedics
pub_type： 杂志文章
doi：10.3928/01477447-20140626-58
更新日期：2014-07-01 00:00:00
abstract：:High-pressure paint gun injuries have been well described in the literature, and the use of antibiotics is recommended as part of their management. However, there is no scientific evidence to support the use of antibiotics. In addition, the type of paint injected (water- versus oil-based) has never been investigated t...
journal_title：Orthopedics
pub_type： 杂志文章
doi：
更新日期：2001-06-01 00:00:00
abstract：:A prospective, randomized clinical study was performed to determine whether unilateral pedicle screw fixation was comparable with bilateral fixation in 1- or 2-segment lumbar interbody fusion. One hundred eight patients with lumbar degenerative diseases were randomly assigned to the unilateral (n=56) or bilateral (n=5...
journal_title：Orthopedics
pub_type： 杂志文章,随机对照试验
doi：10.3928/01477447-20120919-22
更新日期：2012-10-01 00:00:00
abstract：:Fourteen patients with Stage II or III impingement syndrome (average age 58 years) were studied. Nine patients had full-thickness rotator cuff tears documented by arthrograms. Patients initially underwent a thorough shoulder examination followed by baseline isokinetic strength testing. Abduction/adduction testing was ...
journal_title：Orthopedics
pub_type： 杂志文章
doi：
更新日期：1994-08-01 00:00:00
abstract：:The purpose of this study was to determine if the use of screw hole inserts in empty locking screw holes improves the strength and failure characteristics of locking plates. Twenty 5-hole 1/3 tubular locking plates (Synthes, Paoli, Pennsylvania) were mounted on an oak dowel with a 1-cm gap simulating a fracture with c...
journal_title：Orthopedics
pub_type： 杂志文章
doi：10.3928/01477447-20101123-13
更新日期：2011-01-03 00:00:00
abstract：:The objective of this study was to determine the effectiveness of 2% glutaraldehyde as a sterilant for arthroscopes that had been used in septic joints. The first part of the experiment determined the minimum inhibitory concentration and the minimum lethal concentration of the disinfectant for five organisms frequentl...
journal_title：Orthopedics
pub_type： 社论
doi：10.3928/0147-7447-19840201-09
更新日期：1984-02-01 00:00:00
abstract：:Rupture of the distal biceps tendon most commonly is secondary to mechanical overload during eccentric muscle contraction. Due to deficits of strength and endurance, surgical repair usually is recommended. Although both single- and double-incision approaches have been described, double-incision techniques have been sh...
journal_title：Orthopedics
pub_type： 杂志文章,评审
doi：10.3928/01477447-20190723-05
更新日期：2019-11-01 00:00:00
abstract：:There is no mystery regarding the allure of metal-metal bearings: high stability and low wear potential. The special risks associated with these bearings are coming into focus and include a macrophage response to excessive metal particles (metal reactivity) and a lymphocyte-dominated reaction (metal sensitivity). The ...
journal_title：Orthopedics
pub_type： 杂志文章,评审
doi：10.3928/01477447-20090728-06
更新日期：2009-09-01 00:00:00
abstract：:A basic closed loop control system is described for controlling movement of paralyzed skeletal muscle in humans. The system is based around a Z80 microprocessor with 20K of memory. The system involves sensors to detect the amount of movement in muscle or the tension generated by that muscle, a computer-controlled stim...
journal_title：Orthopedics
pub_type： 社论
doi：10.3928/0147-7447-19840801-12
更新日期：1984-08-01 00:00:00
abstract：:This study determined the relationship of various pelvic landmarks to the pelvic plane in the lateral position. Five whole-body cadavers were used in this study. All navigation data were collected using the OrthoPilot navigation system (B. Braun Aesculap, Tuttlingen, Germany) to register all landmarks. The pelvic plan...
journal_title：Orthopedics
pub_type： 杂志文章
doi：10.3928/01477447-20090915-51
更新日期：2009-10-01 00:00:00
abstract：:Orthopedic patients are often instructed on how much weight to bear on an injured or postoperative extremity. Although specific weight-bearing instructions are given to a majority of lower-extremity orthopedic patients, the ability of patients to comply with these instructions is questioned in the medical literature. ...
journal_title：Orthopedics
pub_type： 杂志文章
doi：10.3928/01477447-20111122-14
更新日期：2012-01-16 00:00:00
abstract：:Hip arthroplasty is a common procedure used for the treatment of fractures and degenerative processes affecting the hip. Proximal femoral replacement is an uncommon type of hip arthroplasty used for reconstruction after extensive bone loss. Proximal femoral replacement is used most commonly after the resection of the ...
journal_title：Orthopedics
pub_type： 杂志文章
doi：10.3928/01477447-20170918-09
更新日期：2018-03-01 00:00:00
abstract：:Fragility fractures of the distal radius represent an opportunity to diagnose and treat osteoporosis before further fractures occur. The goal of this study was to determine the prevalence of prescriptions for calcium/vitamin D supplementation and the prevalence of dual-energy x-ray absorptiometry (DEXA) scans in patie...
journal_title：Orthopedics
pub_type： 杂志文章
doi：10.3928/01477447-20141124-53
更新日期：2014-12-01 00:00:00
abstract：:Individuals experiencing post-polio sequelae (PPS) are usually advised to make significant lifestyle changes to lessen symptoms and prevent further decline in function. These individuals have spent most of their lives equating success with over-achievement and find it difficult to implement such recommendations. As sp...
journal_title：Orthopedics
pub_type： 杂志文章
doi：
更新日期：1991-11-01 00:00:00
abstract：:This study reviewed the clinical history and management of acquired growth arrest in the upper extremity in pediatric patients. The records of all patients presenting from 1996 to 2012 with radiographically proven acquired growth arrest were reviewed. Records were examined to determine the etiology and site of growth ...
journal_title：Orthopedics
pub_type： 杂志文章
doi：10.3928/01477447-20160926-07
更新日期：2017-01-01 00:00:00
abstract：:Antibiotics are commonly mixed with polymethylmethacrylate (PMMA) cement to suppress severe periprosthetic infections associated with total joint arthroplasty. The relationship between antibiotic concentration and the resulting elution kinetics remains unclear. The purpose of this study was to characterize the release...
journal_title：Orthopedics
pub_type： 杂志文章
doi：10.3928/01477447-20120327-19
更新日期：2012-04-01 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：:The authors prospectively assessed long-term anticoagulation outcomes (≥3 years) for 9 patients meeting 4 inclusion criteria: pretreatment Ficat stage I or II primary hip osteonecrosis (ON), factor V Leiden or prothrombin G20210A heterozygosity, no contraindication to anticoagulation, and 90-day participation in an in...
journal_title：Orthopedics
pub_type： 杂志文章
doi：10.3928/01477447-20200404-06
更新日期：2020-07-01 00:00:00
abstract：:Between April 1999 and February 2000, femoral component rotation and asymmetry (universal versus anatomic) were studied in a prospective randomized control trial in 101 consecutive patients undergoing total knee replacement. Patients were randomly assigned to four groups. The same surgical technique was used in all pa...
journal_title：Orthopedics
pub_type： 临床试验,杂志文章,随机对照试验
doi：
更新日期：2002-10-01 00:00:00
abstract：:Acute compartment syndrome of the thigh is a serious although rare occurrence that was sparsely documented in the orthopedic literature until Schwartz et al reported on a series of 21 cases. Although classically associated with high-energy femur fracture, thigh contusion, or the use of military anti-shock trousers, co...
journal_title：Orthopedics
pub_type： 杂志文章
doi：10.3928/01477447-20091020-19
更新日期：2009-12-01 00:00:00
abstract：:Navigation of the cup in total hip arthroplasty is well analyzed and shows accurate results, reducing cup outliers of Lewinnek's "safe zone." With regard to the combined anteversion of cup and stem, however, a "new" safe zone with a range of 25° to 50° has been published. The aim of this study was to analyze total ant...
journal_title：Orthopedics
pub_type： 杂志文章
doi：10.3928/01477447-20100510-53
更新日期：2010-10-01 00:00:00
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：:Different biomechanical designs are incorporated into various total knee arthroplasty (TKA) implants. The posterior-stabilized prosthesis design utilizes a polyethylene post and femoral cam in place of the posterior cruciate ligament. This produces a more stable component interface, increased range of motion, and pote...
journal_title：Orthopedics
pub_type： 杂志文章
doi：10.3928/01477447-20160509-19
更新日期：2016-05-01 00:00:00
abstract：:Little is known about the impact of operative time, as an independent and interval variable, on general health perioperative outcomes following anterior cervical diskectomy and fusion. Therefore, patients undergoing a 1-level anterior cervical diskectomy and fusion were identified in the American College of Surgeons N...
journal_title：Orthopedics
pub_type： 杂志文章
doi：10.3928/01477447-20180424-02
更新日期：2018-07-01 00:00:00
abstract：:This study reviews the results of 94 computed tomography (CT)-guided Craig needle biopsies of the spine and sacrum performed at one center. An indication for biopsy in this study was prompted by abnormal findings identified by one or more of the following diagnostic modalities: radiography, CT, magnetic resonance imag...
journal_title：Orthopedics
pub_type： 杂志文章
doi：
更新日期：1997-12-01 00:00:00
abstract：:This study was conducted to evaluate whether preoperative magnetic resonance imaging (MRI) measurements of the cross-sectional area and length of the semitendinosus tendon correlated with graft diameter. The goal of the study was to identify tendons at risk for requiring graft augmentation. The records of 140 consecut...
journal_title：Orthopedics
pub_type： 杂志文章
doi：10.3928/01477447-20170418-02
更新日期：2017-07-01 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：:Staphylococcus aureus is the most common causative organism in pediatric septic arthritis, with methicillin-resistant Staphylococcus aureus (MRSA) being responsible for a significant portion of these infections. Early identification and initiation of proper treatment may improve outcomes by minimizing potential morbid...
journal_title：Orthopedics
pub_type： 杂志文章
doi：10.3928/01477447-20180213-04
更新日期：2018-03-01 00:00:00
abstract：:The major factors that determine a favorable long-term clinical and functional outcome after conventional total knee arthroplasty (TKA) include correct implant positioning and restoration of the mechanical axis with soft tissue balancing to reduce aseptic failure; hence, the need for further developmental strategies t...
journal_title：Orthopedics
pub_type： 杂志文章
doi：10.3928/01477447-20130222-19
更新日期：2013-03-01 00:00:00
