Abstract：
:Intraoperative proximal femur fractures are a significant concern during noncemented total hip arthroplasty. The current study was performed to investigate the hypothesis that broaching the femur and inserting the stem without using mallet applied impact loads will reduce the risk of intraoperative fracture. Rosette strain gauges were applied to the medial and anteromedial cortex of six human anatomic specimen femurs to compare the strain distribution for broaching and stem insertion. Eight additional femurs were used to compare the strain distribution for stem insertion using impact loading and constant rate stem insertion. For the impact loading stem insertions, the soft tissues surrounding the femur were modeled. Constant rate stem insertions were performed using a mechanical testing machine. The largest strains measured at the medial and anteromedial sites primarily were aligned with the femur hoop axis. The largest strain magnitude, orientation, and sign (tensile or compressive) varied widely among femurs. The stem insertion strains were significantly larger than the broaching strains (two-way analysis of variance with replication). The impact stem insertion strains were not significantly different from the constant rate stem insertion strains. The results indicate that the femur geometry and material properties have a greater influence on the strain distribution than does the implantation technique.
journal_name
Clin Orthop Relat Resjournal_title
Clinical orthopaedics and related researchauthors
Elias JJ,Nagao M,Chu YH,Carbone JJ,Lennox DW,Chao EYdoi
10.1097/00003086-200001000-00025subject
Has Abstractpub_date
2000-01-01 00:00:00pages
250-8issue
370eissn
0009-921Xissn
1528-1132pub_type
杂志文章abstract：:Both cost effectiveness and safety can be realized in the operation of a community bone bank by adoption of the following measures: deep freezing, rather than freeze drying; allogenic bone is collected from femoral heads excised from total hip arthroplasties; and careful donor and graft selection controls ensure an al...
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：BACKGROUND:Bacteria shed by operating room personnel is a source of wound contamination and postoperative infections. The personal protection system (PPS) was designed to decrease airborne bacteria and intraoperative contamination in total joint arthroplasty. QUESTIONS/PURPOSES:We determined the microbial contaminatio...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-011-1883-1
更新日期：2011-11-01 00:00:00
abstract：:Economics influences how medical care is delivered, organized, and progresses. Fee-for-service payment encourages delivery of services. Fee-for-individual-service, however, offers no incentives for clinicians to efficiently organize the care their patients need. Global capitation provides such incentives; it works wel...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-009-0930-7
更新日期：2009-10-01 00:00:00
abstract：UNLABELLED:Internal hemipelvectomy is performed for pelvic sarcomas when the tumor can be safely resected without sacrificing the entire extremity. Wide exposure and awareness of major neurovascular structures are crucial to the success of this surgery. Various modifications on the standard utilitarian approach have be...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-009-0843-5
更新日期：2009-10-01 00:00:00
abstract：BACKGROUND:Compressive osseointegration is a promising modality for limb salvage in distal femoral oncologic tumors. However, few studies have explored short-term survival rates in a large patient cohort of distal femur compressive endoprostheses or highlighted the risk factors for spindle failures. QUESTIONS/PURPOSES...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-016-4839-7
更新日期：2016-07-01 00:00:00
abstract：BACKGROUND:The elbow is more susceptible to loss of motion after trauma than any other joint. Open arthrolysis often is performed for posttraumatic elbow stiffness if the stiffness does not improve with nonsurgical treatment, but the midterm results of this procedure and factors that may limit recovery have not been wi...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/CORR.0000000000000726
更新日期：2019-10-01 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：:Imaging, sensing, and computing technologies that are being introduced to aid in the planning and execution of surgical procedures are providing orthopaedic surgeons with a powerful new set of tools for improving clinical accuracy, reliability, and patient outcomes while reducing costs and operating times. Current com...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-199809000-00004
更新日期：1998-09-01 00:00:00
abstract：UNLABELLED:As the number of unicompartmental knee arthroplasties performed continues to rise, so too will the number of failures. In order to justify its continued use, conversion to total knee arthroplasty must be evaluated. From 1993-2004, 22 consecutive knees from 18 patients with a failed unicondylar knee arthropla...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/01.blo.0000214431.19033.fa
更新日期：2006-05-01 00:00:00
abstract：:Major vascular, nonthromboembolic complications of total hip arthroplasty are rare: only 23 have been reported over the last 20 years. This is a report of two additional cases. In an 84-year-old woman, the external iliac artery was lacerated following removal of the acetabular component. Two such injuries have been re...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1984-06-01 00:00:00
abstract：BACKGROUND:Bone quality should play an important role in decision-making for orthopaedic treatment options, implant selection, and affect ultimate surgical outcomes. The development of decision-making tools, currently typified by clinical guidelines, is highly dependent on the precise definition of the term(s) and the ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：10.1007/s11999-011-1838-6
更新日期：2011-08-01 00:00:00
abstract：:Orthopaedic residency has undergone continual evolution since the early 1900s. Training has evolved from a preceptorship to a highly evolved and structured educational system which largely standardizes training throughout the United States. Approval and accreditation of training programs, as well as content, is now ov...
journal_title：Clinical orthopaedics and related research
pub_type： 历史文章,杂志文章
doi：10.1097/01.blo.0000224022.11282.71
更新日期：2006-08-01 00:00:00
abstract：:Fifty years ago Albright contributed the following to understanding osteoporosis: (1) He recognized it as a deficiency of formation, not of mineralization of bone matrix; (2) he observed that 40 of 42 patients with osteoporosis before age 65 were women past menopause or young women postoophorectomy; (3) he concluded t...
journal_title：Clinical orthopaedics and related research
pub_type： 传,历史文章,杂志文章
doi：
更新日期：1991-08-01 00:00:00
abstract：:We asked whether locally applied rhBMP-7 with a Type I collagen carrier could enhance the consolidation phase in distraction osteogenesis. We performed unilateral transverse osteotomy of the tibia in 28 immature male rabbits. In half the animals (14 rabbits), 70 microg rhBMP-7 (28.5 mg rhBMP-7/CC, OP-1) was applied lo...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/BLO.0b013e31802f1973
更新日期：2007-04-01 00:00:00
abstract：:This is a review of 13 patients with chronic osteomyelitis treated at the author's institution using techniques similar to the management of giant cell tumors of bone. This included aggressive serial debridements and appropriate antibiotic coverage and subsequent bone-grafting or soft-tissue coverage procedures. The n...
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：:Deep flexion affects both femorotibial contact pattern and the patellofemoral articulation. The purpose of this study was to compare the patellofemoral motion of nonimplanted and implanted knees and to analyze femorotibial kinematics after total knee replacement designed for deep flexion. Three-dimensional patellofemo...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/01.blo.0000148948.79128.76
更新日期：2004-11-01 00:00:00
abstract：:Eight patients with unstable fractures involving the articular surface and metaphyseal-diaphyseal bone of the proximal or distal tibia associated with severe soft-tissue injury or compounding wound were treated with irrigation, debridement, tetanus inoculation, antibiotic prophylaxis, and combined internal fixation wi...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1990-07-01 00:00:00
abstract：:The reliability of a closed double helix electrode in the lower limbs was studied. This electrode is an implanted intramuscular electrode and is used for a totally implantable functional electrical stimulation system. Eighty electrodes were evaluated retrospectively with a mean period of 15 months. The total implant t...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1998-01-01 00:00:00
abstract：:A bolt-plate device for fixation of distal thoracic and proximal lumbar vertebral bodies has proved effective in a variety of surgical situations. The instrumentation is designed to obtain the optimum conditions for the healing of cancellous bone, namely, rigid immobilization and, if possible, close apposition of surf...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1986-02-01 00:00:00
abstract：:If hinged prostheses are revised with smaller and nonhinged prostheses, do these implants provide adequate fixation, do massive bone grafts in combination with smaller implants reinforce host bone stock, do less constrained prostheses restore ligament tension, and do they avoid problems of the extensor mechanism? To a...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/01.blo.0000127586.10230.cc
更新日期：2004-06-01 00:00:00
abstract：:In addition to changes in cellular pathways, loss of differentiation is a notable feature of osteosarcoma. We hypothesized that blocks to normal differentiation may be a common feature of osteosarcoma, and may be one of many critical events that occur during oncogenesis in osteosarcoma. Furthermore, therapies that res...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/BLO.0b013e31802b683c
更新日期：2007-01-01 00:00:00
abstract：:Quality of life measures have neglected to include a critical self-assessment component in pediatric sarcoma patients. Our report shows how children rate their own quality of life and how that varies over time after surgery. Using the Pediatric Outcomes Data Collection Instrument, quality of life data was prospectivel...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/BLO.0b013e31804f545d
更新日期：2007-06-01 00:00:00
abstract：:Recurrent traumatic anterior shoulder dislocation results in soft tissues lesions around the glenohumeral joint. The subscapularis muscle is a major active stabilizer of the shoulder and the hypothesis of the current study is that one would expect pathologic changes within its substance secondary to the trauma. A hist...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：2002-05-01 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：BACKGROUND:Soluble factors released from chondrocytes can both enhance and induce chondrocyte-like behavior in cocultured dedifferentiated cells. The ability to similarly prime and modulate biosynthetic activity of differentiated cells encapsulated in a three-dimensional environment is unknown. QUESTIONS/PURPOSES:To u...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-011-1772-7
更新日期：2011-10-01 00:00:00
abstract：:Thirty-seven hips with Ficat Stage II, III, or early IV osteonecrosis were treated with hemiresurfacing. The purpose of this study is to analyze specifically the clinical and radiographic results of patients who had hemiresurfacing to refine the indications for the procedure and identify factors substantially affectin...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-200104000-00018
更新日期：2001-04-01 00:00:00
abstract：BACKGROUND:Dexamethasone is a potent analgesic and antiemetic. However, the benefit of dexamethasone after TKA is unclear, as is the efficacy in a current multimodal regime. QUESTIONS/PURPOSES:We determined (1) whether the addition of dexamethasone to a protocol including ramosetron further reduces postoperative emesi...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,随机对照试验
doi：10.1007/s11999-013-3032-5
更新日期：2013-09-01 00:00:00
abstract：BACKGROUND:Obstetric brachial plexus injuries result from traction injuries during delivery, and 30% of these children have persisting functional limitations related to an external rotation deficit of the shoulder. Little is known about the long-term effect of soft-tissue procedures of the shoulder in patients with obs...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/CORR.0000000000000996
更新日期：2020-01-01 00:00:00
abstract：:People are the major source of bacterial contamination in the hospital environment, and to control environmental bacteria, the shedding potential of people must be controlled. In a conventional operating room, the more complete the surgical attire worn by everyone in the room, the better the control; i.e., body exhaus...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1984-11-01 00:00:00
abstract：:Eighty-three total knee arthroplasties done at a single university hospital were reviewed specifically to examine the presence of lysis. Components that were radiographically loose were excluded. The incidence of lysis varied significantly with the method of component fixation. The highest incidence of lysis (30%) was...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1995-12-01 00:00:00
