Abstract：
:Changes in flexural rigidity and compression strength of 18 sheep tibias were investigated after laser perforation and partial demineralization. Test bones were divided into three groups: Group 1, no treatment; Group 2, laser hole grid; and Group 3, laser hole grid and partial demineralization. Starting in the anterior direction at the tibial tuberosity, the flexural rigidity was determined using a nondestructive four-point bending test. The elliptical distribution of the flexural rigidity before and after a specific treatment was compared. After the bending test, a cylindrical center section of each test bone was loaded axially to failure to determine subsequent changes in compression strength. Results showed that perforation alone produced minimal reduction of rigidity and insignificant changes in compression strength. However, additional partial demineralization resulted in larger reductions. In compression testing, perforated and partially demineralized bone specimen showed marked decrease of the ultimate failure stress. The observed increase in failure strain appeared to be related to compression of the laser holes. The findings of this study suggest that partial demineralization and perforation can be applied to diaphyseal bone grafts and that their decreased mechanical properties are a function of the bone volume reductions produced by both processes.
journal_name
Clin Orthop Relat Resjournal_title
Clinical orthopaedics and related researchauthors
Lewandrowski KU,Bonassar L,Uhthoff HKdoi
10.1097/00003086-199808000-00028subject
Has Abstractpub_date
1998-08-01 00:00:00pages
238-46issue
353eissn
0009-921Xissn
1528-1132pub_type
杂志文章abstract：:Increasing knowledge of instability in the shoulder has created a more complex evaluation sequence. The history continues to be important. Many physical examination maneuvers are available to further define the problem. Routine roentgenographic examination has been extended to include views specifically designed to de...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：
更新日期：1987-10-01 00:00:00
abstract：:Postoperative duplex ultrasonography screening after total hip arthroplasty has been shown to identify patients who may require treatment or additional monitoring for venous thromboembolic disease. The potential for manifestation of venous thromboembolic disease subsequent to screening remains a concern. The objective...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-199904000-00022
更新日期：1999-04-01 00:00:00
abstract：:Four patients were treated with limb lengthening to correct a leg-length discrepancy that developed after a hip transposition after pelvic resection for sacroma of the pelvis. Three patients had Ewing's sacroma and one patient had osteosarcoma. All patients received chemotherapy; radiotherapy also was administered to ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/01.blo.0000081933.75404.f8
更新日期：2003-11-01 00:00:00
abstract：:Observations of the knee joint made at surgical synovectomy in young children with the chronic synovitis stage of hemophilic arthropathy permitted description of the evolution of the subchondral cyst in this disease. Beginning as a subchondral hematoma beneath the load-bearing surfaces of the joint, the subchondral cy...
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 fluoroscopy has enabled orthopedic surgeons to become technically more proficient. In addition, these surgical procedures tend to have less associated patient morbidity by decreasing operative time and minimizing the area of the operative field. The trade-off, however, may be an increased risk of radiation ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1989-11-01 00:00:00
abstract：BACKGROUND:Degenerative rotator cuff tears are increasing with the aging population, and healing is not uniform after surgery. Rotator cuffs may show improved healing when biologic factors are added during surgery. QUESTIONS/PURPOSES:We asked: (1) What cellular processes are involved in normal bone-to-tendon healing? ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：10.1007/s11999-010-1323-7
更新日期：2010-06-01 00:00:00
abstract：:Developing and maintaining outcomes for total hip arthroplasty, resulting in meaningful and usable data, presents many challenges for today's clinician. Outcomes data collected must show patients' clinical, functional, and overall quality of life status. Data also must be appropriate to illustrate efficiency, effectiv...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1997-11-01 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
abstract：:Muscle transplantation in deltoid paralysis in poliomyelitis has been practiced only sporadically and considered ineffective. Trapezius transfer to humeral shaft with fascia lata extension was performed to restore abduction power of the shoulder in 24 patients between 4--10 years of age. It is recommended that the mus...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1978-09-01 00:00:00
abstract：:Disabling back pain plagues industrialized societies. Generally redress adheres to a Prussian paradigm that those injured at work are more deserving than those who have worked but can no longer do so because of diseases not related to work. Those who never have worked are least entitled. A comparison of the way the Pr...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-199703000-00012
更新日期：1997-03-01 00:00:00
abstract：:Five patients treated with gentamicin-polymethylmethacrylate (PMMA) beads were monitored during the treatment of nine to 14 days. Kinetic data of the gentamicin delivery were gathered constantly by multiple samples of blood and urine. The treatment with 48-360 beads caused a gentamicin serum concentration of 0.03-0.4 ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1986-04-01 00:00:00
abstract：:A xanthoma, located in the ulna, not accompanied by the traditional cutaneous and tendinous manifestations (xanthoma and xanthelasma) and with a late onset of alterations in lipid values, was diagnosed in a 56-year-old man. The lesion had a slow but constant growth leading to internal calcifications. Hyperlipidemia Ty...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/01.blo.0000063790.32430.10
更新日期：2003-05-01 00:00:00
abstract：:Hyperbaric oxygen has been shown to promote healing in bone and some soft tissues. This study was undertaken to determine its effect on ligamentous healing. Forty-eight Sprague-Dawley rats underwent a standardized surgical laceration of the right (divided) medial collateral ligament, whereas the left (undivided) media...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-199903000-00028
更新日期：1999-03-01 00:00:00
abstract：:The skeletal dysplasias are a large and heterogeneous group of disorders. Currently, there are more than 100 recognized forms of skeletal dysplasia, which makes arriving at a specific diagnosis difficult. This process is additionally complicated by the rarity of the individual conditions. The establishment of a precis...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-200208000-00006
更新日期：2002-08-01 00:00:00
abstract：:Treatment options for giant cell tumors of the distal tibia include curettage and cement packing, curettage and bone grafting, or resection and reconstruction for aggressive tumors. Curettage of aggressive tumors often leads to severe bone loss requiring reconstruction. Allograft and autograft may be effective options...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-009-1097-y
更新日期：2010-06-01 00:00:00
abstract：:Patients who received a single corticosteroid injection for treatment of third webspace plantar interdigital neuroma were studied retrospectively. Forty-three patients (51 feet) were available for followup study (followup mean, 4 years; range, 2 to 6 years). Mean age of patients was 53 years. Pain initially was reliev...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-199605000-00022
更新日期：1996-05-01 00:00:00
abstract：:Histomorphologic analyses of artificial joint components implanted into bone need special technology for processing and for documentation; published histological work systematically done therefore is rare. The histopathology, three-dimensionally analyzed in a complete sequence of sections is, however, the only precise...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：10.1097/01.blo.0000150424.59854.7b
更新日期：2005-01-01 00:00:00
abstract：:A study of the injury fatality rate in an adult population was done in the Moscow region. Investigators determined that side by side with the severity of injury, the direct causes of death were erroneous diagnosis, ungrounded delay of surgical interventions, and lack of and insufficient use of necessary medical care. ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1995-11-01 00:00:00
abstract：UNLABELLED:Impaction grafting is controversial in the presence of segmental and cavitary acetabular defects and requires the use of supplemental devices to close segmental defects. This approach, however, would allow treating combined deficiencies that could not be managed with impacted cancellous bone alone. We raised...
journal_title：Clinical orthopaedics and related research
pub_type： 临床试验,杂志文章
doi：10.1007/s11999-008-0442-x
更新日期：2008-10-01 00:00:00
abstract：BACKGROUND:Bone cancer pain is very common, and patients with this type of pain may be difficult to treat. Development of an experimental model for studying this condition is critical to advancing an understanding of the mechanisms that cause pain in patients with malignant disease. METHODS:A murine model of bone canc...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：10.1097/01.blo.0000093059.96273.56
更新日期：2003-10-01 00:00:00
abstract：:The rationale of acute and chronic orthopedic management of traumatic throacolumbar kyphosis is determined by the type and location of the injury. The performance of laminectomy is condemned due to its historical failure in both the acute and chronic phase and its violation of simple mechanical principles. ...
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：:Operative grading of loosening and histologic examination of the periprosthetic tissues and the femoral and acetabular bone-cement interfaces were undertaken in 72 revised resurfacing hip arthroplasties. By correlating the degree of macroscopic and microscopic loosening at the bone-cement interface, a classification o...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1990-06-01 00:00:00
abstract：:In eight patients with monostotic fibrous dysplasia in the femoral neck, the lesion was virtually limited to the neck region without any extension into the shaft. In one patient with symptoms of 40 years' duration and another with a recurrent lesion, there was a deformity in the neck of the femur. A pathologic fractur...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1984-12-01 00:00:00
abstract：UNLABELLED:Reorientation acetabular osteotomies can correct dysplastic deformities and provide marked improvement in hip function. Deformities of the proximal femur can produce suboptimal articulation or secondary impingement after acetabular reorientation, yet the incidence and characteristics of such deformities have...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-008-0481-3
更新日期：2009-01-01 00:00:00
abstract：BACKGROUND:Serum C-reactive protein (CRP) is a general marker of inflammation, and recent studies suggest that measurement of CRP in synovial fluid may be a more accurate method for diagnosing periprosthetic joint infection (PJI). QUESTIONS/PURPOSES:We aimed to (1) determine if there is a correlation between serum and...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-014-3828-y
更新日期：2014-12-01 00:00:00
abstract：UNLABELLED:Results of total knee arthroplasty have demonstrated excellent pain relief and increased patient function, particularly in activities such as walking. This procedure has not always met the needs of certain ethnic and religious groups as well as younger patients who require greater magnitudes of knee flexion....
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：10.1097/BLO.0b013e31812f785d
更新日期：2007-11-01 00:00:00
abstract：:A prospective, randomized study was performed in 54 female total arthroplasty patients to determine whether straight catheterization in the recovery room might reduce the incidence of postoperative urinary infection, urinary retention, and urinary catheterization. Thirty-one patients were straight catheterized in the ...
journal_title：Clinical orthopaedics and related research
pub_type： 临床试验,杂志文章,随机对照试验
doi：
更新日期：1988-06-01 00:00:00
abstract：:The skeletal system manifestations of thalassemia are characterized by severe osteoporosis, frequent fractures and delayed healing. Permanent deformity and disability can complicate the fractures. Surgical correction of deformity by osteotomy of severely osteoporotic bone and immobilization without internal fixation w...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1978-09-01 00:00:00
abstract：:The spike procedure is applicable as a substitute for a fixation device. In open tubular bone fractures, the spike procedure utilizes the open fracture bone ends to create an intrinsically stable situation in place of pins or extrinsic devices. One end of the tubular bone fracture is fitted into the medullary canal of...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1979-05-01 00:00:00
abstract：:Two untreated completely dislocated hips were examined pathologically in a 74-year-old male dissecting room cadaver. The femoral heads bilaterally were 9 cm above the acetabular fossae. They lay adjacent to each ilium with no secondary acetabulum formation. A thickened and markedly elongated fibrous capsule appeared t...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1976-09-01 00:00:00
