How long are you on crutches after ACL surgery or a knee scope?

Reviewed by Erin Rose — healthcare price-transparency analyst. Last checked August 29, 2026. Part of the full ACL / knee-arthroscopy recovery checklist.

There's no single answer — it depends entirely on what your surgeon actually did inside the knee, and the range is wide: anywhere from 24 hours of caution to six weeks of non-weight-bearing use with a locked brace. Three hospitals — University of Washington, Brigham and Women's, and University of Kentucky — all draw the same line between the two tracks. Here's the range from each, cited directly.

Track A: ACL reconstruction or meniscus repair — non-weight-bearing

UW's own sheet for this track is unambiguous: "You must be non-weight bearing with brace and crutches until cleared by your surgeon. When you are using crutches your brace must be locked in extension." Brigham and Women's independent ACL-reconstruction sheet confirms the same combination from a different institution and surgeon: "When out of bed please have brace on and locked in extension (0 degrees). Use crutches as needed."

Neither sheet gives a single universal day count for coming off crutches — it's tied to your surgeon's own clearance at a follow-up visit, not a fixed calendar date. What is fixed, per UW's protocol: the brace itself stays on for 6 weeks regardless of when crutch use eases, and some protocols begin a gradual weight-bearing progression a few weeks in rather than all at once. Your own surgeon's specific timeline governs your case.

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Track B: simple arthroscopy — balance only, often just days

The contrast case, from the same three hospitals. UW's own knee-arthroscopy sheet (same surgeon, different procedure): "For the first 24 hours after surgery you should use crutches and try not to put any weight on your leg. After 24 hours you can progressively put more weight on your leg with the crutches." Brigham and Women's matched sheet for a meniscectomy/chondroplasty/debridement scope: "Weight bear as tolerated. Use crutches as needed." UW's sheet notes an even lighter case for straightforward debridement or synovitis — as little as 3 to 4 days of crutch use, tapering as symptoms allow.

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The nuance: it's about what was done, not the surgery's name

Both tracks above get called "knee arthroscopy" — the operative technique is the same scope-based surgery either way. What changes the crutches timeline is whether anything was reconstructed or repaired (stitched) versus trimmed or cleaned up. AAOS's own general knee-arthroscopy page states this directly: "Sometimes braces are used post-operatively if a repair or reconstruction is performed that must be protected." A meniscus tear specifically can go either way inside the same operation — repaired (Track A) or trimmed as a partial meniscectomy (Track B) — so "I had a knee scope" alone doesn't tell you which crutches timeline applies. Ask your surgeon which one you had if you're not sure.

Making crutches more tolerable, whichever track you're on

Underarm soreness shows up faster than most people expect, especially on Track A's multi-week timeline — a set of crutch pads is a cheap fix once the stock foam wears thin.

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