The Journal of bone and joint surgery. American volume
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J Bone Joint Surg Am · Jan 2003
Sustained spinal cord compression: part I: time-dependent effect on long-term pathophysiology.
The objective of this study is to determine whether there is a relationship between the duration of sustained spinal cord compression and the extent of spinal cord injury and the capacity for functional recovery after decompression. ⋯ The relatively rapid viscoelastic relaxation of the spinal cord during the early phase of sustained cord compression suggests that there are mechanisms of secondary injury that are linked to tissue displacement. Longer periods of displacement allow propagation of the secondary injury process, resulting in a lack of recovery of somatosensory evoked potentials, limited functional recovery, and more extensive tissue damage.
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J Bone Joint Surg Am · Jan 2003
Fate of the unrevised all-polyethylene patellar component in revision total knee arthroplasty.
During revision total knee arthroplasty, the alternatives for addressing the well-positioned and secure all-polyethylene patellar component with minimal or no wear include retention, revision, and resection. The purpose of the present study was to determine the intermediate-term fate of all-polyethylene patellar components that were left in situ at the time of revision tibiofemoral arthroplasty. ⋯ Therapeutic study, Level IV (case series [no, or historical, control group]). See p. 2 for complete description of levels of evidence.
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J Bone Joint Surg Am · Jan 2003
Barriers to full-text publication following presentation of abstracts at annual orthopaedic meetings.
Oral presentations at national and international meetings offer an excellent forum for the dissemination of current research findings. However, publication rates of full-text articles after presentation of abstracts at international meetings have ranged from 11% to 78%, which suggests that at least 32% of the abstracts presented are never published as complete articles in peer-reviewed journals. In an effort to identify the reasons that surgeons had not had a paper published following presentation of their work at an international orthopaedic meeting, we conducted a survey of a cross section of authors of orthopaedic papers presented at a national meeting. ⋯ In a survey of investigators who had not had a full-text article published after presenting the abstract at a national meeting, we found that the failure to publish was due to one of three main reasons: (1) they did not have enough time to prepare a manuscript for publication (the reason most frequently given); (2) almost one-third of the studies that had not been submitted for publication were ongoing; and (3) relationships with co-authors sometimes presented a barrier to final publication. Thorough preparation before the study and the establishment of stricter guidelines to limit the presentation of preliminary data at national and international meetings may improve publication rates.
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J Bone Joint Surg Am · Jan 2003
Clinical TrialEffect of arthroscopic débridement for osteoarthritis of the knee on health-related quality of life.
The available evidence supporting the use of arthroscopic débridement for the treatment of symptomatic osteoarthritis of the knee is largely retrospective and lacks validated health-related quality-of-life measures. The goal of the study was to prospectively assess a cohort of patients with osteoarthritis of the knee who were selected for arthroscopic débridement and determine which clinical criteria favor a sustained improvement in health-related quality of life after two years of follow-up. ⋯ Therapeutic study, Level IV (case series [no, or historical, control group]). See p. 2 for complete description of levels of evidence.
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J Bone Joint Surg Am · Jan 2003
Clinical TrialIsolated revision of the patellar component in total knee arthroplasty.
Problems with the patellofemoral articulation are the most common causes of failure after total knee arthroplasty. However, there are few reports describing outcomes following isolated revision of the patellar component. ⋯ Therapeutic study, Level IV (case series [no, or historical, control group]). See p. 2 for complete description of levels of evidence.