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○Searched 338,701 passages across the orthopedic corpus
○Retrieved 17 passages from 9 papers · 2010–2023
○Composing synthesis
○Verifying citations · 9 of 9 resolved
Is early ACL reconstruction better than delayed in adolescent athletes?
This is a fixed demo response used to illustrate
the interface — AskStein isn't wired to a live corpus in this prototype, so the evidence below
doesn't reflect your exact question yet.
Retrieved evidence favors early reconstruction in skeletally immature athletes,
primarily to prevent secondary meniscal injury. Evidence on functional outcome at two years is
less consistent.
Key evidence
Delay beyond 12 weeks is associated with higher rates of secondary meniscal injury.
Well supported · 4 sources
Functional outcome scores at two years show no consistent advantage for either timing.
Evidence divided · 2 favor early, 3 find no difference
Physeal-sparing techniques show low growth-disturbance rates in reported series.
Well supported · 2 sources
One retrieved series reports higher graft-rupture rates with early return to pivoting sport,
independent of surgical timing.
Limited · single source
Timing decisions are also shaped by physeal status, meniscal findings at presentation, and
the athlete's competitive calendar.
Framing · not directly evidenced
Not found in corpus
No retrieved evidence addresses outcomes in patients under 12. This part of the question is
unanswered.
Limitations
Most evidence is cohort-level; 2 of 9 sources are randomized
Definitions of "early" range from under 6 weeks to under 6 months across studies
Outcome measures are not harmonized (IKDC, KOOS, Lysholm, Tegner)
Does vitamin D supplementation reduce nonunion rates in scaphoid fractures?
This is a fixed demo response used to illustrate
the interface — AskStein isn't wired to a live corpus in this prototype, so the evidence below
doesn't reflect your exact question yet.
Insufficient evidence
AskStein searched 338,701 passages and did not find evidence adequate to answer this reliably.
Rather than infer an answer, it is reporting the boundary of what the corpus contains.
Evidence boundary
What was found
Vitamin D and fracture healing — general
4 passages · 3 papers · not scaphoid-specific
Scaphoid nonunion risk factors
6 passages · 4 papers · vitamin D not examined
Why this is insufficient
No retrieved study examines vitamin D status as a predictor of scaphoid union specifically
The nearest evidence is in long-bone fractures and does not transfer directly