On postoperative day 8 after left knee ACL reconstruction with a peroneus longus tendon autograft and mild‑moderate swelling, what additional measures should be taken besides celecoxib 200 mg twice daily, orphenadrine, and acetaminophen twice daily?

Postoperative Day 8 ACL Reconstruction Management

Continue your current celecoxib 200 mg twice daily and add aggressive cryotherapy, elevation, and early mobilization with progressive weight-bearing as tolerated—these interventions will reduce swelling and improve outcomes without compromising graft stability. 1, 2

Swelling Management

Your mild-to-moderate swelling at day 8 is expected and should be actively managed:

Cryotherapy

• Apply ice for 20-30 minutes, 4-6 times daily for the next 1-2 weeks 3
• Cryotherapy is effective for reducing pain in the first postoperative week but has limited effect on swelling beyond that 1
• While evidence shows cryotherapy alone doesn't significantly reduce swelling, combining it with exercise therapy provides meaningful improvements in ankle function and allows increased loading during weight-bearing 3

Elevation

• Keep the leg elevated above heart level when resting
• This reduces hydrostatic pressure and promotes venous return
• No high-quality evidence exists for elevation alone, but it remains standard practice 3

Compression

• Continue using compression wraps or stockings if prescribed
• Evidence for compression therapy alone is inconclusive, but it's commonly used as part of multimodal management 3

Pain Management Optimization

Your current regimen of celecoxib 200 mg BID is appropriate:

• Celecoxib is a COX-2 selective NSAID that provides effective analgesia with lower GI toxicity compared to non-selective NSAIDs 4
• Recent evidence shows selective COX-2 inhibitors provide clinically meaningful reduction in acute pain-related interference with daily function 5
• Continue this for at least 2-4 weeks postoperatively 6

Important caveat: While some retrospective studies suggest NSAIDs (particularly ibuprofen and diclofenac) may increase anastomotic dehiscence risk in bowel surgery 7, there is no evidence this applies to orthopedic procedures. The concern about NSAIDs impairing bone or soft tissue healing remains controversial and is not supported by high-quality evidence in ACL reconstruction 1, 2.

Your orphenadrine plus acetaminophen combination is reasonable for muscle spasm and additional analgesia.

Mobilization and Weight-Bearing

Begin immediate weight-bearing as tolerated if you haven't already 1, 2:

• Immediate weight-bearing does NOT affect knee laxity and actually decreases anterior knee pain incidence 1
• Critical requirement: Only progress weight-bearing if you maintain correct gait pattern (use crutches if needed) and experience no pain, effusion increase, or temperature elevation during or after walking 1
• For peroneus longus tendon grafts specifically, early mobilization improves early-phase knee flexion and extension range of motion without compromising knee laxity 2, 8

Exercise Progression

At day 8 post-op, you should be performing:

Isometric Quadriceps Exercises

• Start isometric quadriceps exercises NOW if not already doing them 1, 2
• These are safe from the first postoperative week and help reactivate quadriceps muscles 1
• Include static quadriceps contractions and straight leg raises 2
• Only perform if they provoke no pain 1

Range of Motion

• Work toward full passive extension immediately—extension deficit is a major risk factor for persistent extension loss 1
• Gentle passive and active-assisted knee flexion as tolerated

Neuromuscular Electrical Stimulation (NMES)

• Consider adding NMES to isometric exercises for the first 2 months 1
• NMES combined with conventional rehabilitation may be more effective for improving muscle strength than conventional rehabilitation alone 1
• Particularly useful for re-educating voluntary quadriceps contraction 1

What NOT to Do

• Avoid open kinetic chain (OKC) exercises before week 4 1, 2
• For peroneus longus grafts, when you do start OKC at week 4, restrict range to 90-45° initially with NO extra weight for the first 12 weeks to prevent graft elongation 1
• Do not push through significant pain or swelling—this indicates excessive loading

VTE Prophylaxis Consideration

While not routinely indicated for isolated ACL reconstruction in young, healthy patients, consider your individual risk factors:

• If you have additional risk factors (obesity, prolonged immobility, personal/family history of VTE), discuss chemical prophylaxis with your surgeon 9
• Mechanical prophylaxis (compression stockings) may be appropriate if at higher risk 9

Red Flags Requiring Immediate Contact with Surgeon

• Increasing swelling despite elevation and ice
• Fever >38.5°C (101.3°F)
• Wound drainage, redness, or warmth
• Severe pain not controlled by current medications
• Inability to achieve any weight-bearing by week 2-3
• Loss of range of motion

Timeline Expectations

• Week 2-4: Transition from isometric to closed kinetic chain exercises (leg press, mini squats) 1, 2
• Week 4: Can begin restricted OKC exercises (90-45°) for peroneus longus grafts 1
• Week 6-8: Progress to full ROM exercises 1
• Week 12: Add neuromuscular training to strength training 1

Your peroneus longus tendon graft has comparable biomechanical properties to hamstring grafts with potentially less donor site morbidity 10, 11, 12, so follow these evidence-based rehabilitation guidelines for optimal outcomes.