The right depth for the moment you’re in
Look something up before a case, prepare for tomorrow, or build durable knowledge with focused surgical practice.
Case in 60 seconds
Free-flap congestion
Recognize
Dark, swollen flap with brisk dark bleeding
Treat a change in flap color, turgor, temperature, or signal as time-sensitive.
Immediate priorities
Confirm the finding, remove external compression, and notify the supervising team.
Common pitfalls
Do not let reassuring surface findings delay assessment of a changing flap.
When to escalate
Mobilize urgent evaluation when compromise is suspected.

A clinical answer in about 60 seconds
Search a procedure, complication, anatomy term, or clinical concept. Start with recognition, priorities, pitfalls, and escalation, then open the attached sources or go deeper when time allows.
Tomorrow's case
Carpal tunnel release
Case brief
What to review before you scrub
Key anatomy, operative sequence, common pitfalls, and the questions an attending may ask.
Anatomy refresher
Median nerve and carpal tunnel
Procedure steps
Release from exposure to closure
Attending questions
Five likely questions
Decision simulation
Work through one complication

Prep for tomorrow's case
Bring a concise reference, relevant anatomy, attending-style questions, and a decision simulation together in one focused case-prep workflow.
Plastic Surgery · 3 of 10
A patient develops a congested free flap six hours after surgery.
What is the most appropriate next step?
Attending pearl
Venous congestion is a time-sensitive threat. Confirm the finding and mobilize the operative team early.

ABSITE / PSITE / OITE prep
Question banks aligned to the ABSITE, PSITE, and OITE blueprints. Every item tagged by board category so your study time tracks the exam, not a generic surgery curriculum.
Plastic Surgery pathway
Microsurgery
1 of 4 essentials complete
Flap basics
Monitoring
Complications
Salvage

See where you are. Know what comes next.
Follow a clear surgery-specific route with completed, current, and locked checkpoints. Koji marks your current stop, while decision simulations turn pathway knowledge into clinical reasoning.
Saved for when you need it
Library
Free-flap congestion
Microsurgery · 60 sec
Melanoma margins
Oncology · 60 sec
Flexor tendon injury
Hand · 60 sec
Burn assessment
Trauma · 60 sec
A library that remembers what mattered
Return to procedures, rapid references, clinical cases, and saved questions from one place. Recent references make it easy to pick up where you left off.
Your learning data
Performance
Coverage
64%
Best-score avg
72%
Reinforced
18
Coverage by topic
Your next best action
Tune up craniomaxillofacial trauma
Recommended from recent misses · about 2 min
Progress you can act on
Lead with pathway coverage, demonstrated accuracy, and concepts reinforced. Then turn weak categories, confidence mismatches, and due reviews into one focused next action.