AskStein

Orthopedic evidence, retrieved

Ask the
orthopedic
literature.

AskStein answers only from its corpus. When the evidence isn't there, it says so rather than guessing.

○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?

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)
Evidence basis
17 passages · 9 papers · 2010–2023 · 2 RCT · 5 cohort · 2 review
Searched
Orthopedic corpus · 338,701 passages · 13,387 papers
Retrieved
17 passages · 9 papers
Used
9 passages across 4 claims
Verified
9 of 9 citations resolved
Not covered
No retrieved evidence for patients under 12
Continue
Thread: ACL timing in adolescent athletes · 9 sourcesNew question ⌘K
17 passages · 9 papers

Does vitamin D supplementation reduce nonunion rates in scaphoid fractures?

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
  • No interventional evidence was retrieved
What you could ask instead
Orthopedics corpus · 13,387 papersNew question ⌘K