Abstract：
:In many designs of total knee arthroplasty, the patella with one central peg has been replaced by a patella with three small pegs for cement fixation. There have been recent reports of failure of this design. This is a prospective, consecutive study of two types of patella component fixation in 228 posterior-stabilized knee arthroplasties done by one surgeon. A central peg all-polyethylene component was used for 84 consecutive knees in 63 patients (Group A) and a three-peg patella was used for the next 144 consecutive knees in 99 patients (Group B). The mean followup was 6.7 years (range, 2-10 years) for Group A and 3.5 years (range, 2-6 years) for Group B. Except for the patellar component fixation, all knees had the same posterior-stabilized prosthesis using a specific protocol for patellar resurfacing. No patient required reoperation for a patellofemoral complication. The prevalence of patella fracture was higher in Group A, 4.7% (four knees), compared with 2.1% (three knees) in Group B, but this difference was not statistically significant. The presence of anterior knee pain referable to the patella was 7.1% (five patients, six knees) in Group A (one patient with two knees had severe anterior knee pain) and 9% (13 knees in 13 patients) in Group B. There was no patella clunk syndrome, subluxation, or fracture of a fixation peg in either group. With this specific protocol for patella resurfacing, there was a higher rate of complications with the one central peg patella (4.7%) than with the three-peg patella (2.1%), but this did not reach statistical significance. The results do not support an increased risk of component failure with this three-peg patella design, but do not, at this length of followup, show any significant advantage of three-peg fixation.
journal_name
Clin Orthop Relat Resjournal_title
Clinical orthopaedics and related researchauthors
Larson CM,McDowell CM,Lachiewicz PFdoi
10.1097/00003086-200111000-00012subject
Has Abstractpub_date
2001-11-01 00:00:00pages
94-100issue
392eissn
0009-921Xissn
1528-1132pub_type
杂志文章abstract：:The Hoffmann external fixator has proved to be an effective means of stabilizing complex femoral fractures in patients in whom prolonged traction or internal fixation is not advisable. It provides for the prompt mobilization of multiple-trauma victims and assists in the evaluation of the "floating knee." Pin tract inf...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1983-11-01 00:00:00
abstract：:A harmonious cooperation between the oncologist, orthopedist and radiotherapist can result in a more comfortable, more functional, and in some instances, longer life for the patient. Chemotherapy is an effective and important component of the total management of a patient with metastatic cancer. It provides a mode of ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：
更新日期：1982-09-01 00:00:00
abstract：:An external fixation device that allows limited motion of the wrist joint without disruption of the anatomic alignment was used for the articular Colles' fractures in this study. From July 1985 to April 1989 during a 45-month period, 87 patients with 90 articular Colles' fractures (three cases with bilateral involveme...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1991-02-01 00:00:00
abstract：UNLABELLED:The evaluation and treatment of aggressive bone tumors continue to be diagnostic and therapeutic challenges for orthopaedic surgeons. Despite compelling data regarding the hazards of biopsy, incomplete preoperative evaluation, inappropriate biopsy techniques, and premature surgical interventions continue to ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-008-0546-3
更新日期：2009-02-01 00:00:00
abstract：:The progression from chronic anterior cruciate instability to degeneration of the knee has been well documented in animal studies. However, the literature is unclear as to the overall consequences with respect to the development of osteoarthritis. The long-term consequences of the anterior cruciate insufficient knee w...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1988-02-01 00:00:00
abstract：:The ability to forecast the course and outcome of severe mechanical trauma would aid clinicians in making decisions concerning the treatment of patients. Multifactorial regression models, developed from data obtained from 933 patients with polytrauma and shock, have a high predictive value. A two-part data sheet was d...
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：: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：:Calcified cartilage transplants induce bone formation. This process may be inhibited if the recipient is immunized by the transplant. To study the relation between the degree of antigen incompatibility between the donor and recipient and bone formation in more detail, chondrocytes isolated from cartilaginous epiphyses...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1983-01-01 00:00:00
abstract：:Anterior approaches to the ulna were studied on 22 cadaveric forearms as alternative approaches to the ulnar shaft. An anterior approach is indicated when there is extensive posterior scar tissue, or extensive soft tissue loss in the posterior forearm as in some fresh fractures, or when a tumor is resected from the an...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1995-09-01 00:00:00
abstract：:Eleven intraoperative femur fractures occurred during 605 total hip replacements at Rancho Los Amigos Hospital, an incidence of 1.8%. Fractures occur more often in women, are usually located in the proximal femur, and mostly occur during femoral reaming. The main predisposing factors were osteoporosis and previous hip...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1978-11-01 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 effect of chymopapain injection was investigated in myelographically confirmed intervertebral disc herniation in 268 patients after ten years. Mean age is 39.4 years, 178 males and 90 females. Sixty-two patients had compensation or litigation and 12 had prior lumbar spine surgery. Discography was performed in 223 ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1986-05-01 00:00:00
abstract：:A screw-shaped titanium chamber has been designed for serial in vivo observations of the bone-implant interface. First, the chamber is implanted; later a test substance, e.g. bone cement, is inserted in the chamber and brought in contact with the bone with minimal trauma. Both acute and long-term effects can be intrav...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1981-09-01 00:00:00
abstract：BACKGROUND:Coronal malalignment occurs frequently in TKA and may affect implant durability and knee function. Designed to improve alignment accuracy and precision, the patient-specific positioning guide is predicated on restoration of the overall mechanical axis and is a multifaceted new tool in achieving traditional g...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-011-1996-6
更新日期：2012-01-01 00:00:00
abstract：BACKGROUND:Despite the overall success of total joint arthroplasty, patients undergoing this procedure remain susceptible to cognitive decline and/or delirium, collectively termed postoperative cognitive dysfunction. However, no consensus exists as to whether general or regional anesthesia results in a lower likelihood...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：10.1007/s11999-013-3363-2
更新日期：2014-05-01 00:00:00
abstract：:Thirty-two consecutive subtrochanteric fractures in 32 patients were stabilized using the Medoff sliding plate and were followed up prospectively for 1 year. Two patients died during the first postoperative year. Twenty-nine of the remaining 30 (97%) fractures united by 1-year followup. Two types of plate dynamization...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1998-03-01 00:00:00
abstract：:Internal fixation of oblique metacarpal fractures was studied in a cadaver model by impact loading. One hundred twenty fresh-frozen human metacarpals underwent compressive and bending impacts after oblique osteotomy and internal fixation. Dorsal plating with lag screws, 2 dorsal lag screws (2-screws), crossed Kirschne...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-199604000-00036
更新日期：1996-04-01 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：:A cellulose acetate membrane was fashioned into a cone to serve as a substratum for an outgrowth of connective tissue from normal neonatal muscle, and a container for diffusion of bone morphogenetic protein (BMP) of an aggregate of BMP and cold water insoluble noncollagenous protein (BMP/iNCP). The BMP/iNCP was prepar...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1986-06-01 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：:Gunshot injuries to the hand and upper extremity have been studied during military conflicts and in urban settings. Treatment concepts include identification of injured structures, aggressive surgical wound care, and reconstruction of important functional structures. There are various types of missile injuries. For si...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：10.1097/00003086-200303000-00016
更新日期：2003-03-01 00:00:00
abstract：:In spite of the increasing numbers of porous coated total hip femoral components implanted each year, little is known about the shear strength or fatigue performance of the interface between coating and implant substrate. The appearance of loose beads in clinical follow-up roentgenograms suggests that shear failure of...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1987-04-01 00:00:00
abstract：:Reconstruction operations for severe acetabular defects using bone grafting and a bipolar hemiarthroplasty retrospectively reviewed in 81 hips between 1983 and 1985. The most common indication was failed total hip arthroplasty. Bone grafts consisted of cancellous bone, bone blocks, and wafer-type grafts used singly or...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1991-07-01 00:00:00
abstract：:A 14-year-old girl with painful scoliosis was found to have an osteoid osteoma involving the body of the left seventh rib. Excision of the tumor was facilitated by intraoperative bone scanning that precisely located its position. Following surgery, preoperative pain was completely relieved and the spinal curvature had...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1988-05-01 00:00:00
abstract：:Osteochondritis dissecans of the capitellum produces an area of focal necrosis that may result in a potentially unstable relationship between the capitellum and the radial head. Seven patients with developmental instability of the radial head secondary to osteochondritis dissecans of the capitellum treated between 198...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-199705000-00006
更新日期：1997-05-01 00:00:00
abstract：:Surgery to treat old injuries of the pelvis was performed to reconstruct the pelvic ring (its anterior and posterior compartments) using autoplastic materials and various fixators. The reconstructive operation for extensive disjunction of the pubic symphysis and sacroiliac joint is performed in three stages. The first...
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：BACKGROUND:Osteosarcoma is the most common type of bone cancer in adolescents. There have been no significant improvements in outcomes since chemotherapy was first introduced. Bupivacaine and lidocaine have been shown to be toxic to certain malignancies. This study evaluates the effect of these medications on two osteo...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/CORR.0000000000001510
更新日期：2021-01-01 00:00:00
abstract：:Surgeries (1155 cases) for cervical myelopathy in a northeastern prefecture (population, 2.26 million) and surrounding areas were reviewed. The annual operation rate per 100,000 residents in the prefecture was 5.7. Most of the patients were in their sixth or seventh decade of life (27% each), but the annual operation ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-199602000-00018
更新日期：1996-02-01 00:00:00
abstract：:Forty-nine children with diaphyseal both-bone forearm fractures were treated with either both-bone intramedullary wire fixation (24), single ulnar intramedullary wire fixation (22), or single radial intramedullary wire fixation (3). Six fractures were open and 43 were closed. A limited open approach to one or both bon...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-200209000-00024
更新日期：2002-09-01 00:00:00
abstract：BACKGROUND:More than 15 years ago, the Institute of Medicine (IOM) identified medical error as a problem worthy of greater attention; in the wake of the IOM report, numerous changes were made to regulations to limit residents' duty hours. However, the effect of resident work-hour changes remains controversial within th...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：10.1007/s11999-014-3968-0
更新日期：2015-05-01 00:00:00
