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Front Matter - The Journal of Bone & Joint Surgery

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INSTRUCTIONS TO AUTHORS<br />

THE JOURNAL OF BONE & JOINT SURGERY · JBJS.ORG VOLUME 89-A · NUMBER 9 · SEPTEMBER 2007<br />

Authorship<br />

<strong>The</strong> order <strong>of</strong> names reflects only the preference<br />

<strong>of</strong> the authors. Each author must have<br />

contributed significantly to one or more<br />

aspects <strong>of</strong> the study: its design, data acquisition,<br />

analysis and interpretation <strong>of</strong> data,<br />

drafting <strong>of</strong> the manuscript, critical revision<br />

<strong>of</strong> the manuscript, statistical analysis, and/<br />

or study supervision. Each author should<br />

be able to defend and assume full responsibility<br />

for the content <strong>of</strong> the manuscript, regardless<br />

<strong>of</strong> the specific contributions. No<br />

more than six authors should be listed; individuals<br />

who have contributed to only one<br />

segment <strong>of</strong> the manuscript or have contributed<br />

only cases should be credited in an acknowledgment<br />

footnote. If there are more<br />

than six authors, an accompanying letter <strong>of</strong><br />

transmittal must detail why the authors<br />

have taken exception to these recommendations<br />

and should state how each author<br />

has contributed to the manuscript, with<br />

use <strong>of</strong> the criteria listed above.<br />

If a research group is designated as the<br />

author <strong>of</strong> an article, one or more group<br />

members who fully meet the above criteria<br />

for authorship should be listed in the article’s<br />

byline, followed by “on behalf <strong>of</strong> the<br />

[name <strong>of</strong> group].” <strong>The</strong> other group members<br />

should be listed in an acknowledgment<br />

section at the end <strong>of</strong> the article.<br />

Alternatively, the byline can include only<br />

the name <strong>of</strong> the group, followed by an asterisk<br />

corresponding to a list that specifies<br />

the authors who fully meet the above criteria<br />

for authorship and that also mentions<br />

the other group members.<br />

Letters to <strong>The</strong> Editor<br />

<strong>The</strong> <strong>Journal</strong> welcomes readers’ comments on<br />

published articles. Letters will be accepted and<br />

edited at the Editor’s discretion and will be<br />

published electronically on jbjs.org. Selected<br />

letters and author responses will be published<br />

in the print journal on a quarterly basis. Instructions<br />

for submitting a Letter to the Editor<br />

are available on our website (click “Instructions<br />

to Authors” and then click “Instructions<br />

for submitting a Letter to the Editor”).<br />

Review <strong>of</strong> Manuscripts<br />

Manuscripts are evaluated by the editorial<br />

staff <strong>of</strong> <strong>The</strong> <strong>Journal</strong> and are sent to outside<br />

reviewers. <strong>The</strong> time between receipt <strong>of</strong> a<br />

submitted manuscript and the decision<br />

regarding its publication has averaged six<br />

weeks, but it can be longer.<br />

Levels <strong>of</strong> Evidence for Primary Research Question 1<br />

<strong>The</strong>rapeutic Studies⎯<br />

Investigating the<br />

Results <strong>of</strong> Treatment<br />

Level I • High-quality randomized controlled trial<br />

with statistically significant difference<br />

or no statistically significant difference<br />

but narrow confidence intervals<br />

• Systematic review 2 <strong>of</strong> Level-I randomized<br />

controlled trials (and study results<br />

were homogeneous 3 )<br />

Level II • Lesser-quality randomized controlled<br />

trial (e.g.,

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