Abstract：
:Patients who are young or active or both who require total joint replacement pose a unique challenge; their high activity demands wear-resistant bearings that will perform for decades, without suffering from the adverse effects of accumulated wear products. We discuss the tribologic and biologic properties of newly introduced bearing materials for hip prostheses. The new PEs are intended to address the aseptic loosening problem by reducing the volume of submicron PE particles to a level well below that historically associated with osteolysis. However, choosing among the several variations of the cross-linked thermally-stabilized PEs is confounded by conflicting opinions regarding the optimum balance between long-term wear resistance and mechanical strength, and regarding potential effects of differences in morphologic features of the submicron-sized wear particles on their relative osteolytic potential. Metal-on-metal bearings have clinically proven wear resistance and the advantage of self-polishing, but the long-term biologic effects of metallic ions remain unknown. Ceramic-on-ceramic bearings have the advantage of high biocompatibility and usually very low wear, but fracture remains a rare but catastrophic complication. The choice of an appropriate bearing couple should be made after a thorough consideration of the relative risks and potential benefits of each of these materials.
journal_name
Clin Orthop Relat Resjournal_title
Clinical orthopaedics and related researchauthors
Campbell P,Shen FW,McKellop Hdoi
10.1097/00003086-200401000-00017subject
Has Abstractpub_date
2004-01-01 00:00:00pages
98-111issue
418eissn
0009-921Xissn
1528-1132pub_type
杂志文章,评审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：:Retrospective review of 30 patients with nonunion of the humeral shaft treated from 1984-1999 revealed nine patients with an initial fracture pattern which to our knowledge was not described previously. Humeral fractures originated at the junction of the proximal and middle thirds of the diaphysis as an hemitransverse...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：2004-07-01 00:00:00
abstract：BACKGROUND:Hip and knee arthroplasties are widely performed and vascular disease among patients having these procedures is common. Clopidogrel is a platelet inhibitor that decreases the likelihood of thrombosis. It may cause intraoperative and postoperative bleeding, but its discontinuation increases the risk of vascul...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-012-2306-7
更新日期：2012-05-01 00:00:00
abstract：:Monosegmental cervical spondylosis with radiculopathy requiring operative intervention responds well to anterior disc excision and fusion with autograft. However, there is a 20% to 25% morbidity from the donor site. Several new surgical techniques using biomechanical spacers or internal fixation have been developed th...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：10.1097/00003086-199902000-00008
更新日期：1999-02-01 00:00:00
abstract：BACKGROUND:Previous studies reporting the impact of osteoarthritis (OA) on pain and function after hip arthroscopy largely predate resection of femoroacetabular impingement (FAI). QUESTIONS/PURPOSES:We determined (1) functional improvement after resection of FAI impingement lesions in patients with preoperative radiog...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-010-1741-6
更新日期：2011-06-01 00:00:00
abstract：:To define radiographic criteria, the radiographs of all patients diagnosed with coxarthrosis during the year 1951 were reviewed. Structural or joint space changes, evident radiographically in one of every seven cases in 1951, persisted at the time of the review in 1962. In the remaining cases, the diagnosis had been b...
journal_title：Clinical orthopaedics and related research
pub_type： 传,古典文章,历史文章,杂志文章
doi：
更新日期：1993-02-01 00:00:00
abstract：:Achondroplastic patients having lengthening surgery of the lower limbs were preoperatively evaluated from psychologic, functional, vascular, and endocrinometabolic points of view. Long-term research is required to determine effects of surgical correction of achondroplasia from both psychologic and various physical poi...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：
更新日期：1990-01-01 00:00:00
abstract：:The presence of a "pseudocapsule," composed of an inner compression zone and outer reactive zone, is a frequent finding in the periphery of osteosarcoma. Morphologic and immunohistochemical methods were used to determine the type of inflammatory cell most closely related to the formation of this pseudocapsule. Six and...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1994-03-01 00:00:00
abstract：:The authors report their 15-year experience with primary total hip arthroplasty using collarless, tapered, porous-coated femoral stems (Trilock and Taperloc) in patients with osteoarthritis, rheumatoid arthritis, and in octogenarians. Excellent clinical results were achieved in all groups at latest followup. For the p...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-200112000-00014
更新日期：2001-12-01 00:00:00
abstract：:Degradation of yttria-stabilized zirconia femoral heads in vivo has been linked to increased roughening and even fracture of the femoral head. To determine whether magnesia-stabilized zirconia is better suited to resist degradation, we characterized the monoclinic phase concentration, surface topography, and microhard...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/BLO.0b013e318158b4d3
更新日期：2007-12-01 00:00:00
abstract：:A retrospective review of 262 consecutive cervical spine fractures revealed that 41 (16%) were odontoid fractures. Twenty patients were younger than 40 years of age (19 fractures were the result of a motor vehicle accident), whereas 19 fractures occurred in subjects older than 60 (13 were the result of a fall). Fractu...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1985-03-01 00:00:00
abstract：BACKGROUND:Scapular notching is a unique complication of Grammont-style reverse total shoulder arthroplasty. While reverse total shoulder arthroplasty has revolutionized the treatment of pseudoparalysis secondary to cuff tear arthropathy, the implications of scapular notching with regard to patient function and implant...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：10.1007/s11999-010-1720-y
更新日期：2011-09-01 00:00:00
abstract：UNLABELLED:Ankle arthroplasty is increasingly used to treat advanced ankle arthritis. Earlier prostheses have given way to second-generation implants, on which we are accumulating medium-term data. The Scandinavian Total Ankle Replacement (STAR) is a three-component uncemented implant in wide use in Europe and the only...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-009-0971-y
更新日期：2010-04-01 00:00:00
abstract：:There is no standardized method reported in the literature to measure ROM of the ankle after a total ankle arthroplasty, which limits the possibility to compare results from the various ankle designs. It seems that most of the measurements are a combination of ankle and midfoot motion, not the tibiotalar joint. A prot...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/01.blo.0000132180.69464.84
更新日期：2004-07-01 00:00:00
abstract：BACKGROUND:Improved patient care is related to validated outcome measures requiring the collection of three distinct data types: (1) demographics; (2) patient outcome measures; and (3) physician treatment. Previous impediments to widespread data collection have been: cost, office disruption, personnel requirements, phy...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-010-1397-2
更新日期：2010-10-01 00:00:00
abstract：BACKGROUND:Earlier results with porous tantalum acetabular cups in revision THA generally have been favorable. Recently there has been some evidence presented that porous tantalum cups might decrease the risk of rerevision in the setting of revision hip surgery performed owing to prosthetic joint infection (PJI). As th...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,多中心研究
doi：10.1007/s11999-017-5417-3
更新日期：2017-12-01 00:00:00
abstract：:A previously undescribed accessory flexor digitorum superficialis muscle-tendon unit was discovered on surgical exploration of the wrist in an 18-year-old girl with symptoms of distal ulnar neuropathy and a volar soft-tissue mass. Excision of the muscle-tendon unit resulted in complete resolution of symptoms. The preo...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1985-04-01 00:00:00
abstract：:Plaster casts, custom-fabricated fracture braces, and prefabricated fracture braces were compared in the laboratory for the stability they provided to closed, experimental, diaphyseal fractures of the tibia and fibula on anatomic specimens. The stability was comparable for each type of device tested for the loading co...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1993-06-01 00:00:00
abstract：:Experience with cementless fixation over the last six years indicates that the technique offers greater opportunities for bone conservation. Thus, when cement is used, and especially if it is forced into the skeleton under pressure, the amount of bone incorporated into the implant is considerable. Conversely, if no ce...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1985-01-01 00:00:00
abstract：:Some authors suggest the use of larger (36 and 40 mm) femoral heads against highly cross-linked polyethylene acetabular liners will reduce the prevalence of early dislocation after primary total hip arthroplasty (THA). We prospectively followed 61 consecutive patients at high risk for dislocation to determine the prev...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/01.blo.0000238851.31368.e7
更新日期：2006-12-01 00:00:00
abstract：:A modified Ilizarov external fixator was used to transfix the stifle joint in 13 dogs. A 1-cm cortical cancellous bone plug was outlined in the intracondylar notch of the femur after excising the anterior (cranial) cruciate ligament (ACL). Hardware attached to the plug allowed controlled distraction of the plug into a...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1992-07-01 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：: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：:A prospective randomized study undertaken in 30 patients who underwent outpatient decompressive acromioplasty demonstrated the efficacy and safety of interscalene block post-operatively. Interscalene block improved the postoperative condition and well being of these patients. Their use decreased the hospitalization ra...
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：1994-07-01 00:00:00
abstract：:Septic arthritis of the hip occurred in a 32-year-old hemophiliac with circulating Factor VIII antibodies. The clinical presentation suggested a soft tissue hematoma, but failure of early resolution with immobilization and Factor VIII replacement led to a correct diagnosis. A non-invasive method of management is essen...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-197711000-00030
更新日期：1977-11-01 00:00:00
abstract：:Twelve cases of supracondylar fracture of the femur in rheumatoid arthritis patients with previously implanted resurfacing or MacIntosh arthroplasty of the knee had long standing severe polyarticular rheumatoid arthritis (duration, ten to 41 years; mean 24.8 years). The fractures occurred following a long interval aft...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1988-04-01 00:00:00
abstract：:A new instrumentation for posterior spinal surgery consists of metallic rods carved with diamond-shaped asperities on which vertebral hooks or screws can be screwed in any position, level, or degree of rotation. The rods are interlocked by means of devices for transverse traction (DTTs), rectangular constructs with mu...
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 study compared the effects of laser and monopolar radiofrequency energy on thermal and architectural properties of joint capsular tissue in an in vitro ovine model. Sheep glenohumeral joint capsular specimens were treated with laser (5, 10, 15 W) or radiofrequency energy (55 degrees, 65 degrees, 75 degrees C) (n =...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-200006000-00034
更新日期：2000-06-01 00:00:00
abstract：:To address the issue of nonunion with trochanteric osteotomy, surgeons have experimented with various modes of fixation, wire and cable being the two most popular. From a group of 643 primary cemented total hip arthroplasties performed by a single surgeon via the trans-trochanteric approach, minimum four-year roentgen...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1992-12-01 00:00:00
abstract：:To evaluate the effects of nonweight bearing on joints (weight-free range, five to 92 months), bilateral hips of 20 patients with amputated lower limbs or nonunion of the femur were studied clinically and roentgenographically. The nonweight-bearing side showed a roentgenographic narrowing of the joint space of 10% or ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1992-06-01 00:00:00
