Abstract:
:Two hundred thirty-four primary total knee prostheses were evaluated with a 45 degrees merchant view to examine patellar position and fixation. Despite a standardized technique for obtaining roentgenographs, patellar position varied with leg position. Overall, 54.7% tracked centrally, 31.2% tilted, and 14.5% displaced. The incidence of these findings was the same whether the patella was domed or congruent. Neither pain scores nor fixation were affected by position. Postoperative tilt and displacement were more common in patellae that were tilted preoperatively. The incidence of postoperative tilt or displacement was not significantly different in knees in which a lateral release was performed. Patellar tilt in some patients seems inevitable despite careful technique because intraoperative tests are static and postoperative function is dynamic. This does not bode well for wear in a metal-backed patella. Tilt caused increased loading at the periphery of the component where most metal-backed prostheses have thin polyethylene.
journal_name
Clin Orthop Relat Resjournal_title
Clinical orthopaedics and related researchauthors
Bindelglass DF,Cohen JL,Dorr LDsubject
Has Abstractpub_date
1993-01-01 00:00:00pages
103-9issue
286eissn
0009-921Xissn
1528-1132pub_type
杂志文章abstract::The best treatment for intramuscular hemangiomas is unclear in part because the outcome is variable, with recurrence rates ranging from 18% to 61%. This variance is due to deficiencies in previous reports such as an inadequate population size, lack of life table analyses, lack of uniform pathologic criteria, and loose...
journal_title:Clinical orthopaedics and related research
pub_type: 杂志文章
doi:10.1097/BLO.0b013e318063c61b
更新日期:2007-06-01 00:00:00
abstract::In 1987, after 11 years of research, press fit titanium circumferential grommets were introduced for arthroplasty of the metacarpophalangeal joint to protect the flexible hinge implant midsection from sharp bony edges and shearing forces that can initiate implant abrasions and tears leading to implant fracture and for...
journal_title:Clinical orthopaedics and related research
pub_type: 杂志文章
doi:
更新日期:1997-09-01 00:00:00
abstract::The purpose of this two-part biomechanical study was to evaluate various fixation methods for transverse acetabular fractures in a synthetic pelvic model. In Part 1, 40 transverse acetabular fractures were repaired with anterior column plating using 10-hole curved reconstructions plates with one of four screw configur...
journal_title:Clinical orthopaedics and related research
pub_type: 杂志文章
doi:
更新日期:1998-07-01 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::Known for its resistance to chemotherapy and radiation therapy, chondrosarcoma remains largely a surgically managed tumor predisposed to local recurrence and late distant metastasis. A 42-year-old man with known thoracic chondrosarcoma developed progressive low back pain, lower extremity weakness, and urinary incontin...
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:BACKGROUND:Multiple studies have reported favorable short-term results after treatment of spondylolisthesis and other degenerative lumbar diseases with minimally invasive transforaminal lumbar interbody fusion. However, to our knowledge, results at a minimum of 5 years have not been reported. QUESTIONS/PURPOSES:We det...
journal_title:Clinical orthopaedics and related research
pub_type: 杂志文章
doi:10.1007/s11999-013-3241-y
更新日期:2014-06-01 00:00:00
abstract::When inserting screws into a vertebral pedicle, the surgeon usually exposes the back part of the vertebra and uses his or her anatomic knowledge to align the drill in the proper direction. A slight error in direction may result in an important error in the position of the tip of the screw. This is done with no direct ...
journal_title:Clinical orthopaedics and related research
pub_type: 临床试验,杂志文章
doi:10.1097/00003086-199704000-00011
更新日期:1997-04-01 00:00:00
abstract:BACKGROUND:Shoulder injury from vaccination was approved for automatic compensation from the Vaccine Injury Compensation Program (VICP)-a federal government program started in 1988 to shield the manufacturers of childhood vaccines from liability. The approval was made on the basis of case reports rather than experiment...
journal_title:Clinical orthopaedics and related research
pub_type: 杂志文章
doi:10.1097/CORR.0000000000001215
更新日期:2020-10-01 00:00:00
abstract::Reconstructive procedures were investigated in meniscal lesions in 14 dogs. Large wedge-shaped lesions were repaired with a graft containing carbon fibers and an organic polymer, prepared from physical mixtures of poly(L-lactide) and a segmented polyurethane. Four and eight weeks postoperation, arthroscopy was perform...
journal_title:Clinical orthopaedics and related research
pub_type: 杂志文章
doi:
更新日期:1986-01-01 00:00:00
abstract::Posterior displacement of the odontoid after fracture occurs much less frequently than does anterior displacement. Experience with four patients suggests that anatomic reduction may not be possible and prolonged attempts to gain reduction are not advisable. Those cases should be managed with early application of a hal...
journal_title:Clinical orthopaedics and related research
pub_type: 杂志文章,评审
doi:
更新日期:1984-09-01 00:00:00
abstract::Bonesetting, a most ancient healing art, was absorbed into orthopaedic surgery approximately 120 years ago when Hugh Owen Thomas, a medical doctor specializing in pediatric deformities, assumed his father's nonmedical bonesetting practice. In many nonWestern nations, however, traditional bonesetters continue to treat ...
journal_title:Clinical orthopaedics and related research
pub_type: 历史文章,杂志文章
doi:
更新日期:1999-06-01 00:00:00
abstract::A simple, effective technique for internal fixation of the clavicle with Knowles threaded pins is described in 11 patients with 1 to 21 year results. The method is applicable to fresh fractures of non-union and provides secure compression-fixation. The threads prevent migration of the pin, reduce the period of externa...
journal_title:Clinical orthopaedics and related research
pub_type: 杂志文章
doi:10.1097/00003086-197506000-00013
更新日期:1975-01-01 00:00:00
abstract::Stress fracture of the patella can occur with significant frequency following patellar replacement with the duopatellar knee prosthesis. In the first 372 knees with patellar resurfacing, the incidence was 0.7% in rheumatoid arthritis (2 fractures in 286 knees) and 3.5% in osteoarthritis (3 fractures in 86 knees). The ...
journal_title:Clinical orthopaedics and related research
pub_type: 杂志文章
doi:
更新日期:1982-10-01 00:00:00
abstract::To evaluate magnetic resonance imaging (MRI) of meniscal, ligamentous, and bony abnormalities in patients without clinical symptoms, scans were performed on 74 asymptomatic volunteers without histories or symptoms of knee injury. Before review by three radiologists in an independent and blinded fashion, the scans were...
journal_title:Clinical orthopaedics and related research
pub_type: 杂志文章
doi:
更新日期:1992-09-01 00:00:00
abstract::To calculate the tibial wedge size in preoperative planning of high tibial osteotomy, the weight-bearing line (center femoral head to center tibiotalar joint) is first restored to a selected position on the lateral tibial plateau. Ten full-standing roentgenograms were examined and used to derive mathematical formulas ...
journal_title:Clinical orthopaedics and related research
pub_type: 杂志文章,评审
doi:
更新日期:1992-01-01 00:00:00
abstract::Between 1980 and 1996, 17 children who were prepubescent have had a combined intraarticular and extraarticular reconstruction of the anterior cruciate ligament using the iliotibial band that does not violate the physes. The average chronological age of the patients was 11 years (range, 2-14 years) and the average skel...
journal_title:Clinical orthopaedics and related research
pub_type: 杂志文章
doi:10.1097/00003086-199907000-00006
更新日期:1999-07-01 00:00:00
abstract::In a lateral dislocation that is unreducible by closed methods, one should suspect that the tendon of the tibialis anterior muscle may be preventing reduction because of its interposition. In such a situation an open reduction is mandatory. ...
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:BACKGROUND:Metal-on-metal articulations can release substantial amounts of particles containing cobalt and chromium into the surrounding milieu, causing concern for cellular toxicity and adverse local soft tissue reactions. The diameter of the femoral head has been one of the variables that inversely affects wear of me...
journal_title:Clinical orthopaedics and related research
pub_type: 杂志文章
doi:10.1007/s11999-010-1630-z
更新日期:2011-06-01 00:00:00
abstract:BACKGROUND:Wear of polyethylene tibial inserts can decrease the longevity of total knee arthroplasty. Wear is currently assessed using laboratory methods that may not permit backside wear measurements or do not quantify surface deviation. QUESTIONS/PURPOSES:We developed and validated a technique to quantify polyethyle...
journal_title:Clinical orthopaedics and related research
pub_type: 杂志文章
doi:10.1007/s11999-010-1490-6
更新日期:2011-01-01 00:00:00
abstract::Revision anterior cruciate ligament surgery can be very demanding. Graft selection for revision surgery is a pivotal part of this procedure. Often, the usual first choice of tissue is not available. Therefore, familiarity with alternative graft sources and understanding their advantages and disadvantages is imperative...
journal_title:Clinical orthopaedics and related research
pub_type: 杂志文章,评审
doi:10.1097/00003086-199604000-00008
更新日期:1996-04-01 00:00:00
abstract::Nonoperative treatment of patellofemoral pain has a long-standing tradition of success. I will discuss the scientific background and practical application of such treatment. Evaluation and treatment should include lower extremity flexibility, muscular control, and careful evaluation of tender structures. Avoiding pain...
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::The present study evaluated cortical porosity and thickness of intact rat femora 12 weeks after intramedullary reaming and nailing. The right femora were reamed and received either flexible polyacetal nails or rigid stainless steel nails. A third group was reamed but not nailed. The left femora were used as controls. ...
journal_title:Clinical orthopaedics and related research
pub_type: 杂志文章
doi:
更新日期:1989-09-01 00:00:00
abstract:BACKGROUND:Transforming acidic coiled-coil containing protein 3 (TACC3) is expressed during the mitotic phase of nuclear division and regulates microtubules. Recently, high TACC3 expression in tumor cells of various cancers including soft tissue sarcoma has been reported. However, its role in osteosarcoma remains unkno...
journal_title:Clinical orthopaedics and related research
pub_type: 杂志文章
doi:10.1097/CORR.0000000000000379
更新日期:2018-09-01 00:00:00
abstract:BACKGROUND:Although postoperative spinal epidural hematoma (SEH) is not uncommon, hematomas that require surgery are rare. Cauda equina syndrome (CES) may be associated with postoperative SEH. In these cases, early recognition and emergency decompression can prevent further damage and better neurologic recovery. CASE ...
journal_title:Clinical orthopaedics and related research
pub_type: 杂志文章
doi:10.1007/s11999-011-2031-7
更新日期:2012-06-01 00:00:00
abstract::Release of antibiotics from antibiotic-loaded PMMA is dependent on its permeability. Loading PMMA with soluble particulate filler has been proposed to increase permeability and antibiotic release for beads and spacers. We therefore assessed particulate sucrose, xylitol, and erythritol as fillers to increase the permea...
journal_title:Clinical orthopaedics and related research
pub_type: 杂志文章
doi:10.1097/BLO.0b013e3181123e90
更新日期:2007-08-01 00:00:00
abstract::To determine the vascular architecture of nontraumatic avascular necrosis of the femoral head (ANFH), 38 femoral heads procured from 31 ANFH patients were studied by microangiographic and histologic methods. Microangiography showed that the head was consistently stratified into three zones: the normal vascular, the re...
journal_title:Clinical orthopaedics and related research
pub_type: 杂志文章
doi:
更新日期:1992-04-01 00:00:00
abstract::Palsies of the lower cranial nerves occurred in association with traumatic atlantoaxial dissociations in two patients. The fracture-dislocations sustained were rare injuries and the neurologic complications contributed greatly to their morbidity and mortality. ...
journal_title:Clinical orthopaedics and related research
pub_type: 杂志文章
doi:
更新日期:1991-05-01 00:00:00
abstract::Meniscus transplantation is indicated for persistent pain in a meniscectomized knee. Currently, grafts are prepared aseptically, which provides limited protection against donor-derived infection. The performance of a novel, sterilized meniscus was compared with an aseptically prepared one in an experimental model. Twe...
journal_title:Clinical orthopaedics and related research
pub_type: 杂志文章
doi:10.1007/s11999-008-0567-y
更新日期:2009-07-01 00:00:00
abstract:BACKGROUND:Femoroacetabular impingement (FAI) can occur after slipped capital femoral epiphysis (SCFE) regardless of slip severity and even after in situ pinning. These patients represent a rare and unique demographic that is largely unreported on. It is important to further characterize the clinical presentation of th...
journal_title:Clinical orthopaedics and related research
pub_type: 杂志文章
doi:10.1097/CORR.0000000000001576
更新日期:2020-11-17 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