Abstract：
:Fourteen knees were studied by a method called spatial location, to determine the contact and load-bearing areas between the femur and the upper tibia in non-loaded and loaded conditions, at various angles of flexion. Under no load, contact occurred primarily on the menisci; the lateral aspects contacted at 0 degrees flexion, moving to the posterolateral aspects at 90 degrees flexion. An area of cartilage which frequently contacted was the medial tibial spine. Under loads of up to 150 kg, the lateral meniscus appeared to carry most of the load on that side of the joint, while on the medial side, the load was shared approximately equally by the meniscus and the exposed cartilage. These findings were verified on two knees by measuring contact pressure with a miniature transducer. Two implications of these findings are that the area of load-bearing is greatly increased and that the stability of the knee joint is enhanced by the menisci.
journal_name
Clin Orthop Relat Resjournal_title
Clinical orthopaedics and related researchauthors
Walker PS,Erkman MJdoi
10.1097/00003086-197506000-00027subject
Has Abstractpub_date
1975-01-01 00:00:00pages
184-92issue
109eissn
0009-921Xissn
1528-1132pub_type
杂志文章abstract：:Osteoarticular defects present a reparative challenge to orthopaedic surgeons. Osteoarticular allografts provided a promising solution. Unfortunately, many of these allografts failed secondary to articular cartilage degeneration. To determine the role of the extracellular matrix in graft failure, the authors have char...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-200101000-00004
更新日期：2001-01-01 00:00:00
abstract：:Joint synovia and fluids taken from patients with various stages of rheumatoid arthritis (RA) were injected into embryonated chicken eggs, resulting in characteristic joint abnormalities ("crooked toes") in the extremities of the embryos and chicks. There was a direct correlation between the number of the induced lesi...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1979-10-01 00:00:00
abstract：:Reaming increases intramedullary pressure and can cause fat intravasation. This study investigated the influence of reaming parameters on pressure changes using the AO, Gray, and Howmedica reamers. Silicone cylindrical shells with 10-, 11-, 16-, 19-, and 20-mm inner diameters were filled with a 1:2 ratio of paraffin a...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-200004000-00036
更新日期：2000-04-01 00:00:00
abstract：:Thirty-eight total knee arthroplasties in 36 patients were studied at 4 +/- 2 (mean, +/- SD) years follow-up evaluation. The Hospital for Special Surgery knee score improved from 59 +/- 9 (mean, +/- SD) before surgery to 83 +/- 11 (mean, +/- SD) (p less than 0.0001) at last evaluation. Good or excellent results were a...
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：:The percentage of necrosis in a primary osteosarcoma after the patient has received preoperative chemotherapy is prognostic and is usually used to select subsequent chemotherapy. However, the percentage of necrosis that occurs spontaneously, without preoperative chemotherapy, has not been adequately studied. The exami...
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：:In accepting this invitation to write a prefatory chapter as a mini professional autobiography, it has become all too obvious that this has touched a few nerve endings that had healed many years ago. Contemplating personal experiences, thoughts, and philosophies and then writing them should have a purpose. During thes...
journal_title：Clinical orthopaedics and related research
pub_type： 传,历史文章,杂志文章
doi：
更新日期：1994-03-01 00:00:00
abstract：:There are no data in the literature concerning the outcome of Colles' fracture beyond six years. One hundred consecutive patients with displaced Colles' fractures were reviewed ten years after the injury. Function, radiographic anatomy, osteoarthrosis, and reflex sympathetic dystrophy (algodystrophy) were all objectiv...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1993-10-01 00:00:00
abstract：BACKGROUND:Wound closure accounts for a relatively constant portion of the time required to complete a surgical case. Both longer closure times and wound infections contribute to higher medical costs and patient morbidity. QUESTIONS/PURPOSES:We therefore determined whether (1) biologic and treatment factors greater in...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-012-2524-z
更新日期：2013-03-01 00:00:00
abstract：:Seven patients with chronic osteomyelitis were treated by surgical debridement. Cefamandole was administered intravenously before surgery. During the debridement, cefamandole concentrations were measured in serum and necrotic bone. Although adequate levels of antibiotic were achieved in the serum, minimal or no concen...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1985-10-01 00:00:00
abstract：:Management of nonunions requires careful and critical assessment of the true biologic status of the fracture. The mere radiographic persistence of a fracture line does not invariably indicate nonunion. Ten percent of fractures considered initially to be ununited in this series healed spontaneously without further trea...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1981-11-01 00:00:00
abstract：:Growth prediction data and graphs have not been available previously for the fibula. In this report, this information is wholly derived from a longitudinal radiographic study of growth in children. Teleradiographs of the tibia and fibula in 244 children (123 boys and 121 girls) were made at 6-month intervals from age ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1997-01-01 00:00:00
abstract：BACKGROUND:Above-knee amputation (AKA) is a rare but devastating complication of TKA. Although racial disparities have been previously reported in the utilization of TKA, it is unclear whether disparities exist in the rates of AKA after TKA. QUESTIONS/PURPOSES:(1) Which gender-racial group has the highest rate of AKA ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-016-5195-3
更新日期：2017-07-01 00:00:00
abstract：:This is a report of the fifth known case of recurrent Legg--Calve--Perthes' disease. Roentgenograms of the hips after the first avascular episode, at the age of 3 years and 6 months resemble to a certain extent, Dysplasia Epiphysealis Capitis Femoris. ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1977-07-01 00:00:00
abstract：:Magnetic resonance imaging (MRI) is proving to be an effective means for evaluating the shoulder. The use of a surface coil and high resolution scanning techniques have allowed detailed analysis of the normal anatomy of the shoulder. When evaluating for shoulder pathology, the choice of imaging plane and pulse sequenc...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：
更新日期：1989-07-01 00:00:00
abstract：:External malrotation is a frequent complication following Ender nailing. Biomechanical studies demonstrate that the standard Ender nail tends to produce external malrotation when the fracture is unstable. This type of malrotation does not develop to the same degree if the nails are bent into a 25 degree angle of antev...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1980-03-01 00:00:00
abstract：:Numerous important developments in tissue engineering of new bone during the last 10 years are reviewed. Early efforts to combine cells with biocompatible materials are described and applications of this technology are presented with particular focus on uses in orthopaedics and maxillofacial surgery. Basic principles ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：10.1097/00003086-199910001-00036
更新日期：1999-10-01 00:00:00
abstract：:Canes may be used to reduce hip pain by reducing the joint contact force. Previous estimates suggest that this force could be reduced to 17-26% of normal. We have calculated 3-dimensional hip contact forces during gait in 4 groups: normals, preoperative hip patients walking without a cane, preoperative hip patients wa...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1980-03-01 00:00:00
abstract：:Musculoskeletal medicine is not taught adequately in American medical schools and the predictable consequences are seen. Students cannot show cognitive mastery of the subject and lack confidence in this topic. To address this, the Academic Orthopaedic Society held a symposium on medical school education at its annual ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/01.blo.0000093922.26658.3c
更新日期：2003-10-01 00:00:00
abstract：:Modular components allow for the customization of hip replacements to the individual patient. Modular head-neck components allow for mixed material systems to minimize polyethylene wear as well as provide the ability to vary neck length and head size independent of the stem. Modular interfaces, however, result in an i...
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：:Fetal tendons and skin heal regeneratively without scar formation. Cells isolated from these fetal tissues exhibit enhanced cellular migration and collagen production in comparison to cells from adult tissue. We determined whether fetal and adult fibroblasts isolated from the anterior cruciate ligament (ACL), a tissue...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-008-0391-4
更新日期：2008-12-01 00:00:00
abstract：BACKGROUND:Lisfranc (tarsometatarsal joint) injuries are relatively rare, accounting for less than 1% of all fractures, and as many as 20% of subtle Lisfranc injuries are missed at the initial patient presentation. An undiagnosed Lisfranc injury can have devastating consequences to the patient. Therefore, any factor th...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-016-5131-6
更新日期：2017-05-01 00:00:00
abstract：:Thirty-five patients with a benign lesion of the femoral neck or trochanter were treated and seen in followup at the authors' institution from 1988 to 1991. Sixteen men and 19 women between the ages of 18 and 54 years (average, 27 years) were seen at an average followup of 3 years 6 months (range, 2-5 years). Eight pa...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-199607000-00034
更新日期：1996-07-01 00:00:00
abstract：UNLABELLED:We sought to determine whether open reduction and internal fixation in combination with free vascularized bone grafting and elbow contracture release is an effective treatment for patients with recalcitrant distal humeral nonunions with segmental bone loss. In addition, we wondered whether this treatment str...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：2005-06-01 00:00:00
abstract：:Articular cartilage repair remains a clinical and scientific challenge with increasing interest focused on the transplantation of chondrogenic cells. This study evaluated the repair response during a 1-year period after implantation of allogenic perichondrium cell polylactic acid composite grafts into 3.7 x 5 mm osteo...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-199707000-00029
更新日期：1997-07-01 00:00:00
abstract：:Interposition grafting material is used frequently to treat osteoarthritis of the base of the thumb or tendinous and ligamentous injuries of the hand. The observation of duplicated tendons in the first dorsal compartment of the hand prompted us to explore the possibility of using the accessory abductor pollicis longus...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-009-1059-4
更新日期：2010-05-01 00:00:00
abstract：:The use of microvascular flaps has become routine in treating compound tibial fractures with extensive soft-tissue loss. Vascularized bone grafts, or shortening of the leg and later elongation with the Ilizarov technique, have been advocated if the injury involves major bone loss. The authors treated four of these mas...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1993-12-01 00:00:00
abstract：:Except in emergencies, the physician's obligation is not to relieve pain, but to diagnose and treat pathology. Psychological factors complicate organic pain, and make the diagnosis of "psychogenic" pain virtually impossible on the basis of psychological tests alone. In acute (short-term) pain, anti-anxiety agents are ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-197711000-00017
更新日期：1977-11-01 00:00:00
abstract：:The purpose of this study is to clarify the clinical features of the knee affected by multiple epiphyseal dysplasia. Thirty-one cases of multiple epiphyseal dysplasia were reviewed. Of the patients, 11 were male and 20 were female. The average age at onset of symptoms was 22.5 years. The average age at initial visit t...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-200011000-00025
更新日期：2000-11-01 00:00:00
abstract：:The objective of this study was to determine which criteria in the residency application had the highest correlation with subsequent performance of orthopaedic residents. Data collected from the application files of 58 residents included scores on standardized tests, number of honors grades in the basic and clinical y...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-200206000-00034
更新日期：2002-06-01 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
