Abstract：
:Theoretical and experimental studies before and after stem insertion demonstrated that stresses and strains were closer to normal for uncemented stems than for cemented stems. The values were affected by relative tightness of fit in the proximal and distal regions and by the presence or absence of a collar. For designing an optimal fit-stem, the average femoral geometry was first determined. The stem was used in a photoelastic coating study that showed a continuous strain field over the bone surface. The average proximomedial bone strains for intact, press-fit, loose press-fit with collar, and proximally cemented (to simulate ingrowth) designs were 100%, 65%, 101%, and 54%, respectively. Localized patches of high strain were seen on the proximal bone surface and beneath a collar, indicative of localized stem-bone contact points.
journal_name
Clin Orthop Relat Resjournal_title
Clinical orthopaedics and related researchauthors
Walker PS,Robertson DDsubject
Has Abstractpub_date
1988-10-01 00:00:00pages
25-34issue
235eissn
0009-921Xissn
1528-1132pub_type
杂志文章abstract：:The incidence of fractures in primary hyperparathyroidism is highly variable. The possibility that there might be an increased susceptibility to fracture is discussed. Healing in most is without delay. Three cases of delayed or nonunion following fracture are presented. In all three, healing accelerated dramatically a...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1977-05-01 00:00:00
abstract：:A case of isolated dislocation of the pisiform occurred in an 18-year-old man who was treated by primary resection and followed for two years. As observed in previous reports, primary resection was a successful treatment. ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1989-04-01 00:00:00
abstract：:A prospective study of 570 patients with fracture of the upper end of the femur was carried out between 1967 and 1971 in Jerusalem. Of three distinct ethnic groupings, Western or Ashkenazi females and Eastern or Sephardi males produced the highest incidence of fractured neck of the femur proportional to their makeup i...
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：:Humerus fractures comprise 5% to 8% of all fractures. Nonunions are uncommon, but when they occur, they present a challenge to the orthopaedic surgeon and often are debilitating to patients. There are risk factors that may predispose patients to nonunion. Many methods of treating these nonunions have been described wi...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：10.1097/00003086-200402000-00008
更新日期：2004-02-01 00:00:00
abstract：:There has been considerable improvement in recent years i the prognosis for patients with localized Ewing's sarcoma of bone. This improvement largely stems from the use of radiation therapy to the primary lesion accompanied by aggressive adjuvant chemotherapy. With patients surviving longer, it has become evident that...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1980-11-01 00:00:00
abstract：:Rheumatoid arthritis (RA) affects the articular surfaces and the ligamentous supporting structures of synovial-lined joints. In approximately one-fourth of the patients with RA, the sacroiliac joints demonstrate radiographic changes of subchondral bony erosions and articular destruction, as well as ankylosis. Subluxat...
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：BACKGROUND:Idiopathic osteoarthritis (OA) is a common diagnosis leading to hip arthroplasty. Patients undergoing unilateral hip arthroplasty often wonder whether their other hip will follow the same path as the one that was operated on, and if so, when? There also are limited data available to predict from AP radiograp...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-016-4888-y
更新日期：2016-08-01 00:00:00
abstract：:Nodules of fibrocartilage, calcified fibrocartilage, or bone may be found in the adult ligamentum nuchae. These are generally asymptomatic but may mimic fractures or, as in the case presented here, tumors. ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1978-10-01 00:00:00
abstract：:Bilateral simultaneous Achilles tendon ruptures are rare, with only ten cases reported in the English literature. Our case is that of a 44-year-old woman, along with a review of the literature. Affected persons usually are on chronic steroid treatment and in the fifth to seventh decades of life. The patient may have c...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1986-12-01 00:00:00
abstract：:Defects from curettage for giant cell tumors of bone frequently have been reconstructed with bone cement with or without reinforcement pins. The biomechanical basis for the addition of reinforcement pins was examined using a model of a contained defect in the proximal tibia. Fifty-four cadaveric proximal tibia in matc...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-200402000-00038
更新日期：2004-02-01 00:00:00
abstract：UNLABELLED:Ten patients who had reconstruction of the acromion and deltoid in a painful dysfunctional shoulder after an acromionectomy were reviewed with respect to pain, range of motion, strength, patients' satisfaction, and complications. There were four total acromionectomies, five subtotal acromionectomies, and one...
journal_title：Clinical orthopaedics and related research
pub_type： 临床试验,杂志文章
doi：10.1097/01.blo.0000146535.77776.5f
更新日期：2005-01-01 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
abstract：BACKGROUND:The direct anterior approach for THA allows implantation through an internervous plane without muscle detachment from bone. However, the classic longitudinal skin incision does not follow the anatomic skin creases and can result in scar widening. We therefore modified our incision technique to a short obliqu...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-013-2806-0
更新日期：2013-07-01 00:00:00
abstract：:Forty-four cemented hip replacements in patients under 45 years of age were assessed clinically and radiologically five to ten years after implantation. Four of five hips were pain-free and provided excellent function, and one in seven hips required revision but have since fared well. The results for osteoarthritic hi...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1988-06-01 00:00:00
abstract：:Postoperative prophylaxis with antiinflammatory medications, primarily indomethacin, is extremely effective in preventing the severest degrees of heterotopic ossification (HO) after a total hip arthroplasty (THA) and the recurrence of excised HO developed after a previous hip surgery. Prophylaxis with indomethacin sho...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：
更新日期：1991-02-01 00:00:00
abstract：:Pseudoallescheria boydii, a fungus often isolated from soil, commonly causes a mycetoma. Successful treatment involves resection of the infected area and appropriate antifungal chemotherapy. In vitro sensitivity of P. boydii to miconazole is usually demonstrated, but resistance to amphotericin B and 5-fluorocytosine i...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1987-02-01 00:00:00
abstract：:In order to determine the effects of parathyroid hormone on bone formation, mean wall thickness (MWT) of trabecular bone packets was measured on transilial undecalcified bone biopsies from 26 patients (14 females and 12 males) with primary hyperparathyroidism (HPT). Mean value of MWT in HPT patients (45.2 +/- 5.8 micr...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1982-01-01 00:00:00
abstract：UNLABELLED:Proximal tibia fractures present a difficult treatment challenge with historically high complication rates. In a prospective study, we asked whether the Less Invasive Stabilization System (LISS) plate can adequately treat extraarticular and complex intraarticular proximal tibia fractures and provide low comp...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/01.blo.0000203467.58431.a0
更新日期：2006-04-01 00:00:00
abstract：:Seven patients with chronic osteomyelitis were treated by surgical debridement. Cefamandole was administered intravenously before surgery. During the debridement, cefamandole concentrations were measured in serum and necrotic bone. Although adequate levels of antibiotic were achieved in the serum, minimal or no concen...
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：BACKGROUND:Most contemporary total disc replacements (TDRs) use conventional orthopaedic bearing couples such as ultrahigh-molecular-weight polyethylene (polyethylene) and cobalt-chromium (CoCr). Cervical total disc replacements incorporating polyetheretherketone (PEEK) bearings (specifically PEEK-on-PEEK bearings) hav...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-016-5041-7
更新日期：2016-11-01 00:00:00
abstract：:An in vivo canine model was developed to investigate the histologic and biochemical parameters associated with aseptic loosening. Thirty-eight canines had cementless total hip arthroplasty. Experimental groups were designed specifically to investigate the relative contributions of implant motion and particulate debris...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1995-10-01 00:00:00
abstract：:Modular components allow for the customization of hip replacements to the individual patient. Modular head-neck components allow for mixed material systems to minimize polyethylene wear as well as provide the ability to vary neck length and head size independent of the stem. Modular interfaces, however, result in an i...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1994-01-01 00:00:00
abstract：:A case of avulsion fracture of the lateral sesamoid is reported in association with dislocation of themetatarsophalangeal joint of the hallux. The radiographic criteria to establish the diagnosis of fracture in sesamoid bones are outlined. Review of the literature reveals only one other reported case associated with a...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1980-06-01 00:00:00
abstract：BACKGROUND:Polyethylene wear debris is a major contributor to inflammation and the development of implant loosening, a leading cause of THA revisions. To reduce wear debris, highly crosslinked ultrahigh-molecular-weight polyethylene (UHMWPE) was introduced to improve wear properties of bearing surfaces. As highly cross...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-010-1713-x
更新日期：2011-08-01 00:00:00
abstract：:Two hundred seventy-nine patients undergoing primary unilateral total knee replacement and 280 patients undergoing primary bilateral total knee replacements were reviewed retrospectively. Patients' height, weight, hemoglobin level before donation, hemoglobin level before surgery, autologous donation, number and type o...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-199812000-00008
更新日期：1998-12-01 00:00:00
abstract：:Osteochondral autografts of femoral condyles in dogs were frozen at different cooling velocities after exposure to either glycerol or dimethyl sulfoxide to determine the freezing regimen best suited for preservation of intact cartilage. Autografts were also subjected to hypothermic storage in tissue culture media for ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1985-07-01 00:00:00
abstract：:Tumoral calcinosis is the deposition of calcium crystals and salts in the periarticular soft tissues. It commonly is seen as a complication of renal dialysis or in patients with a hereditary disposition. Occasionally, it is seen as an isolated condition with no known cause. Tumoral calcinosis usually affects adults an...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：
更新日期：2005-07-01 00:00:00
abstract：BACKGROUND:Heterotopic ossification (HO) is a common extrinsic cause of elbow stiffness after trauma. However, factors associated with the development of HO are incompletely understood. QUESTIONS/PURPOSES:We retrospectively identified (1) patient-related demographic factors, (2) injury-related factors, and (3) treatme...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-013-3304-0
更新日期：2014-07-01 00:00:00
abstract：:Tension is necessary to maintain and restore the mechanical properties of soft connective tissues. Conversely, reduced tension states such as produced by immobilization weaken mechanical properties and facilitate joint contracture. We assessed the effect of low torque-long duration stretching to increase the range of ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/BLO.0b013e31803212bf
更新日期：2007-03-01 00:00:00
abstract：:Fourteen patients with separation of the distal clavicular metaphysis from the epiphysis were reviewed. These injuries, especially in the older child and adolescent, mimic acromioclavicular separation. However, they are really growth-plate injuries in which the epiphysis and physis maintain their normal anatomic relat...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1984-09-01 00:00:00
