Acute Soft-Tissue Injury Management

The generic hub for a sprain, strain or contusion once a fracture, dislocation or tendon rupture has been excluded — the principles below apply whether the injury is a sprained ankle, a strained hamstring or a bruised calf. The individual injury pages (Acute Muscle Strains & Tears, ligament and joint injury pages) link back here for this shared first-aid and rehabilitation framework rather than repeating it.

Protect, then load — not prolonged rest

Early protection matters, but prolonged rest does not help and can actively slow recovery. Brief protection (a brace, splint, or crutches) limits further damage in the first day or two, but extended immobilisation beyond that is discouraged — clinical guidance recommends against casting for more than four weeks even for the most severe sprains, since prolonged immobilisation causes weakness and stiffness without improving the long-term outcome. Early, gentle range-of-motion exercise, started once the initial pain and swelling begin to settle (typically within 3–7 days), speeds recovery — patients who mobilise early return to work and sport faster than those kept immobilised.

Ice, compression, elevation

Ice and compression together, started immediately after injury, are supported by strong evidence for improving short-term pain and swelling. Elevating the injured limb above heart level in the first 48 hours also helps reduce swelling. This is the well-known RICE approach (rest, ice, compression, elevation) — useful, but read “rest” as brief protection rather than prolonged immobilisation, for the reasons above.

Analgesia — NSAIDs are not clearly better than the alternatives

NSAIDs, paracetamol and (for a few days) opioids all perform similarly for pain in acute soft-tissue injury — the choice is about side-effect profile, not superior analgesia. A Cochrane review found no difference in pain at one to two hours or at two to three days between NSAIDs and paracetamol, and no difference at one hour between NSAIDs and opioids. NSAIDs carried a small increase in gastrointestinal side effects compared with paracetamol, and fewer gastrointestinal and neurological side effects than opioids. Default to paracetamol first-line, add a short course of NSAIDs if pain control is inadequate and there’s no contraindication, and reserve opioids for a genuinely severe injury for the shortest course possible — potent analgesia is rarely needed beyond a few days for a soft-tissue injury.

When to image

Apply the validated clinical decision rule for the joint involved rather than X-raying every soft-tissue injury reflexively — the Ottawa ankle rules, for example, are close to 100% sensitive for a clinically significant ankle or midfoot fracture and cut unnecessary X-rays by roughly 30%. Bony point tenderness at the sites the rule specifies, or inability to weight-bear, is what should prompt imaging — diffuse soft-tissue swelling and pain alone usually should not. For the neck specifically, see the Canadian C-Spine Rule on the whiplash page.

Graduated return to activity

Rehabilitation progresses in phases rather than an all-or-nothing return: early-phase work focuses on pain/swelling control and restoring range of motion; once swelling has settled and motion is improving, add strengthening; the final phase adds proprioception, balance and sport-specific movement before full return. Skipping straight from “still swollen” to full activity is what drives re-injury — each phase needs to be substantially achieved, not just endured, before progressing to the next.

Review timing and red flags

Review a straightforward sprain or strain if it is not settling as expected within one to two weeks — persistent point tenderness, an inability to progress weight-bearing, or new neurological symptoms are reasons to reassess the diagnosis rather than simply extending the same advice. Bracing or taping for four to six weeks after a significant sprain is more effective at preventing re-injury than prolonged casting, and is a reasonable default during the return-to-sport phase.