Abstract：
:The aim of this study was to describe the course of untreated or conservatively treated arthrosis of the knee joint. Of 265 patients presenting with knee pain who had weightbearing radiographs taken between 1970 and 1973, 132 (33 men and 99 women) responded to and participated in a clinical followup 20 years later using the Hospital for Special Surgery score and new weightbearing radiographs. Arthrosis was defined as an equal to or greater than 50% joint space narrowing. In 75 of 132 knees of Ahlbäck Class 0 (57%) and 20 of 52 knees of Ahlbäck Class I (39%), the classification remained unchanged. The Hospital for Special Surgery score at followup was compared with the Ahlbäck classes in the 1970s for the 110 cases for which surgery was not done. A higher Ahlbäck class at the time of presentation was associated with lower functional score (Hospital for Special Surgery) 20 years later. In addition, in the contralateral knee a reduction of joint space may occur. In the arthrosis group with total joint space reduction or attrition there was a clinical and radiographic deterioration that would merit surgical intervention to avoid unnecessary loss of function. However, in knees with equal to or greater than 50% joint space reduction (Ahlbäck I) and pain, a considerable number (39%) did not deteriorate radiographically during a 20-year period, and 25% remain free of pain. It appears that the long-term prognosis of mild knee arthrosis is not necessarily poor. A substantial number of these patients will not have progression of the arthrosis.
journal_name
Clin Orthop Relat Resjournal_title
Clinical orthopaedics and related researchauthors
Sahlström A,Johnell O,Redlund-Johnell Idoi
10.1097/00003086-199707000-00019subject
Has Abstractpub_date
1997-07-01 00:00:00pages
152-7issue
340eissn
0009-921Xissn
1528-1132pub_type
杂志文章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：:Bilateral simultaneous Achilles tendon ruptures are rare, with only ten cases reported in the English literature. Our case is that of a 44-year-old woman, along with a review of the literature. Affected persons usually are on chronic steroid treatment and in the fifth to seventh decades of life. The patient may have c...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1986-12-01 00:00:00
abstract：:A light and electron microscopy investigation was performed on a Leeds-Keio ligament removed because of rupture 18 months after implantation to repair an anterior cruciate ligament. The investigation showed fibrous connective tissue on the plane of the main stress force. There was elastin and adequate vascularization ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1991-06-01 00:00:00
abstract：:Stress fractures of the base of the second metatarsal are common in ballet dancers and essentially are unreported in nondancers. We presumed base of the second metatarsal stress fractures in nondancers occur in a wide variety of individuals regardless of demographics, are highly associated with athletic activities, an...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/BLO.0b013e3180598ff2
更新日期：2007-08-01 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:Recent studies have shown successful midterm outcomes after total hip arthroplasty (THA) in patients with human immunodeficiency virus (HIV). However, little data exist on the epidemiology, risk of perioperative complications, and length of stay in patients with HIV receiving THA. QUESTIONS/PURPOSES:The pur...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-014-3855-8
更新日期：2015-02-01 00:00:00
abstract：:From the time of Hippocrates to the beginning of the nineteenth century, fractures of the distal end of the radius were mistaken for dislocations of the wrist. Clinical observations, anatomic dissections, and experiments on cadavers dispelled this error. It was not, however, until after the discovery of roentgenograms...
journal_title：Clinical orthopaedics and related research
pub_type： 传,历史文章,杂志文章
doi：
更新日期：1984-07-01 00:00:00
abstract：:Intraoperative femoral fracture is a well-recognized technical complication of cementless total hip arthroplasty. This study was designed to establish an in vitro model for initiation and propagation of fractures of the proximal femur in cementless THA and to assess the effect of fracture fixation in the form of cercl...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1991-11-01 00:00:00
abstract：:Medicolegal aspects of orthopaedic foot and ankle surgery, including issues of standard of care, complications, and discrepancies between patient and physician expectations, generally are similar to those encountered in other orthopaedic subspecialties. However, there are some unique aspects involving foot and ankle s...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：10.1097/00003086-200504000-00012
更新日期：2005-04-01 00:00:00
abstract：:Metasul metal-on-metal articulations have been used for 15 years in approximately 300,000 total hip replacements. We have used Metasul articulations in three clinical studies and have shown clinical success as measured by Harris hip scores and patient self-assessment; we also have had the usual mechanical complication...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：10.1097/01.blo.0000150343.66755.79
更新日期：2004-12-01 00:00:00
abstract：BACKGROUND:Patients with local recurrence of soft-tissue sarcomas have a poor overall survival. High-grade, soft-tissue sarcomas in deep locations may have a poorer prognosis regarding local recurrence than low-grade sarcomas or those located superficially. Although previous reports evaluated tumors at various depths, ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-011-2017-5
更新日期：2012-03-01 00:00:00
abstract：:A new total knee rating system has been developed by The Knee Society to provide an up-to-date more stringent evaluation form. The system is subdivided into a knee score that rates only the knee joint itself and a functional score that rates the patient's ability to walk and climb stairs. The dual rating system elimin...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1989-11-01 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 evaluate the effect of application of pulsed direct current electrical stimulation to callus tissue, a 1-cm bone-lengthening model using an external lengthener was applied to rabbit tibia. Twenty-microampere pulsed direct current was applied 12 hours daily from the day of osteotomy until 40 days after the completio...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1995-03-01 00:00:00
abstract：:Seven patients who had low supracondylar fractures above total knee arthroplasties were treated using the intramedullary supracondylar rod. Six of the seven patients were steroid-dependent, long-standing severe polyarticular rheumatoid arthritics with marked osteopenia. The intramedullary supracondylar rod provided st...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1994-05-01 00:00:00
abstract：:The use of aggressive chemotherapy undoubtedly has brought about a dramatic increase in the cure rate of osteosarcoma. The authors' investigations have increased the authors' knowledge of chemotherapy for osteosarcoma, the differential efficacy of currently used agents, and the pronounced schedule dependency and relat...
journal_title：Clinical orthopaedics and related research
pub_type： 临床试验,杂志文章,多中心研究,评审
doi：
更新日期：1991-09-01 00:00:00
abstract：:Recent technologic advances in bone mineral densitometry have resulted in increasingly precise and accurate methods of estimating bone mineral density. Dual-photon absorptiometry has been made obsolete by the introduction of dual-energy radiography, a development that is likely to result in more widespread use of dens...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：
更新日期：1991-10-01 00:00:00
abstract：BACKGROUND:Unloader braces are a nonsurgical approach for predominantly unicompartmental knee arthritis. Although noninvasive, braces are expensive and it is unclear whether clinical factors, if any, will predict regular brace use. QUESTIONS/PURPOSES:We asked: (1) Do patients continue to use the unloader brace more th...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-013-2814-0
更新日期：2013-06-01 00:00:00
abstract：UNLABELLED:A grading system for ossification of the iliac apophysis (Risser sign) came into use in the mid 1950s in the United States and was adopted sometime later with modifications in France and other European countries. Although called by the same name, these systems have important differences that could lead to di...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/01.blo.0000160819.10767.88
更新日期：2005-07-01 00:00:00
abstract：BACKGROUND:Polyetheretherketone (PEEK) has a wide range of clinical applications but does not directly bond to bone. Bulk incorporation of osteoconductive materials including hydroxyapatite (HA) into the PEEK matrix is a potential solution to address the formation of a fibrous tissue layer between PEEK and bone and has...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-016-4994-x
更新日期：2016-11-01 00:00:00
abstract：BACKGROUND:Mesenchymal stromal cells (MSCs) have been shown in rodent models to promote primary and pulmonary metastatic sarcoma growth when injected in the presence of gross tumor. In theory, this would limit their use in a clinical setting after limb salvage treatment for osteosarcoma. Although concerning, these mode...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-015-4362-2
更新日期：2016-03-01 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
abstract：BACKGROUND:Patient expectations may affect their satisfaction and functional outcomes after treatment of musculoskeletal injuries. Although there is evidence that patient expectations of ACL reconstruction (ACLR) are inflated, there is limited knowledge about the relationship between physician and patient expectations ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/CORR.0000000000001082
更新日期：2020-03-01 00:00:00
abstract：:A 59-year-old woman developed a histiocytic response to methylmethacrylate debris in a loose total hip arthroplasty. This reaction eroded through the medial wall of the acetabulum, producing a pelvic mass and presenting with urinary symptoms. A combination of an abdominal approach for removal of the pelvic mass and a ...
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：:Overweight patients are often considered poor candidates for total knee arthroplasty. For assessment of the validity of this proscription, two-year follow-up data from 109 patients were analyzed. Hospital for Special Surgery Scores were recorded, roentgenograms were inspected for radiolucencies, and isokinetic strengt...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1992-03-01 00:00:00
abstract：:The tensile and histologic characteristics of sharply transected Achilles tendons treated by cast immobilization, surgical repair, and surgical repair reinforced with polyglactin mesh were evaluated in 31 rabbits. All modes of tendon treatment resulted in tensile failure at significantly lower loads than in the contra...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1983-12-01 00:00:00
abstract：:Twenty knee dislocations in 19 patients (one bilateral) occurred over a period of 20 years. The age range was 21 to 65 years, with an average age of 40.8 years. There were two popliteal artery and eight peroneal nerve injuries in the group. All patients were managed by early closed reduction at the scene of the accide...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1985-09-01 00:00:00
abstract：:The injured cervical spine may be completely examined without patient movement by positioning the X-ray tube relative to the injured patient. The prevertebral soft tissue in the cervical area is extremely important in the evaluation of injury, and a thickness of 5 mm or more at the level of the anterior inferior bord...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-197506000-00003
更新日期：1975-01-01 00:00:00
abstract：BACKGROUND:The triangular fibrocartilage complex (TFCC) tear is a common cause of ulnar-side wrist pain; however, its natural course is not well understood. QUESTIONS/PURPOSES:We sought (1) to determine the natural course of TFCC tears without distal radioulnar joint (DRUJ) instability, and (2) to identify the factors...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/CORR.0000000000000533
更新日期：2019-02-01 00:00:00
abstract：:The trauma pandemic disproportionately kills and maims citizens of low-income countries although the immediate cause of the trauma is often an industrial export of a high-income country, such as a motor vehicle. Addressing the trauma pandemic in low-income countries requires access to relevant research information reg...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：10.1007/s11999-008-0397-y
更新日期：2008-10-01 00:00:00
