Why days 3–5 are the hardest

For many patients, the third, fourth, and fifth days at home are the hardest stretch of the entire recovery — not because anything has gone wrong, but because of the precise moment those days fall in the body's healing timeline.

In hospital, pain is often well-controlled by nerve blocks administered around the time of surgery. These wear off gradually over the first two to four days, and as they do, the underlying surgical pain becomes noticeable for the first time. That shift can feel alarming, but it is entirely expected — the block did its job while the care team was close by, and its fading at home simply marks the moment the body's own healing process takes over.

Swelling in the operated leg and foot typically peaks around this same window. The combination of increased pain and fluid-related stiffness makes movement feel more effortful than it did on the ward, which can be discouraging. It helps to know that this is the high-water mark.

Opioid-based analgesia, which most patients are taking at this stage, adds its own layer of difficulty. Constipation is a common and underestimated side-effect; so are grogginess and mild nausea, which compound the challenge of managing basic tasks at home. Stool softeners and fibre-rich food are routinely recommended, and proactive pain management — taking analgesia on a schedule rather than waiting until pain builds — is the critical early skill.

Sleep, meanwhile, is frequently disrupted. Lying on the back with a pillow between the knees is the safest position, but it is rarely the most restful. Heightened sensitivity and the need to plan every movement make undisturbed nights difficult in this early phase.

This cluster of challenges — pain, swelling, medication effects, poor sleep — is both predictable and time-limited. Most patients report meaningful improvement by days 7–10, as swelling begins to ease and the body starts to find a rhythm with its analgesia. Understanding that trajectory before it arrives makes navigating it considerably easier.

Pain and swelling: what helps in week one

Taking prescribed analgesia on a schedule — rather than waiting until pain becomes difficult to tolerate — remains the most important habit to establish in week one. Pain that has built up takes longer to bring back under control, so following the timing your surgical team has set out, even when you feel relatively comfortable, is the approach most likely to keep those first days manageable.

Swelling in the leg and foot responds best to two things used in combination: gentle walking and periods of elevation. Neither replaces the other — movement promotes circulation and prevents stiffness, while elevating the leg above hip height during rest helps fluid drain away. An ice pack wrapped in a cloth (never applied directly to skin) can reduce localised swelling and provide short-term comfort around the wound area.

Constipation at this stage is practical rather than mysterious: opioid-based analgesia slows gut motility reliably. Stool softeners, adequate hydration, and fibre-rich foods address it directly, and your team will typically have anticipated this when planning your medication. Acting early — rather than hoping it resolves — avoids a discomfort that can otherwise rival the surgical pain itself.

If pain escalates unexpectedly, or changes in character — becoming sharp, burning, or concentrated in the calf — contact your surgical team or GP promptly rather than adjusting the analgesia plan yourself.

Walking in week one: distance is the wrong goal

The instinct to measure progress by how far you have walked is understandable, but in week one it is the wrong instinct. Distance is not the goal. Frequency is.

For most patients in the first week, walking means short, deliberate sessions — to the kitchen and back, to the bathroom and back, around the room a few times — with a walking frame or two crutches for support. Multiple brief sessions throughout the day are clinically more useful than one longer outing. Each short walk gently reactivates the muscles around the hip, encourages circulation, and reduces the risk of deep vein thrombosis. Movement is not optional exercise at this stage; it is a central part of the treatment itself.

Stairs are typically introduced before discharge, under physiotherapy guidance, using a handrail-led technique. At home, the same approach applies — one step at a time, leading with the operated leg going down and the non-operated leg going up, never hurrying.

Fatigue after even a brief walk is entirely normal and should be respected. Rest between sessions is written into the recovery plan, not a sign that something has gone wrong. The rhythm that tends to serve most patients best in this first week is simple: walk a short distance, rest, walk again — repeated throughout the day with consistency rather than ambition. That pattern, maintained steadily, is what the body needs to begin finding its footing.

Sitting, toilets, and getting around at home

Getting low — whether onto a standard chair, a car seat, or a toilet — is one of the first practical challenges patients encounter once home, and for good reason. After a traditional posterior hip replacement, the posterior tendons are divided during surgery and then repaired. Until those repaired tendons have fully healed, loading the hip into deep flexion risks pulling the repair apart and displacing the new joint. The clinical response is a strict precaution: no hip flexion beyond 90 degrees for up to 90 days. That restriction makes ordinary furniture — sofas, low chairs, standard toilet seats — a genuine obstacle in week one, and explains why raised toilet seats, chair raisers, and long-handled aids are standard discharge equipment after this type of surgery.

The SPAIRE technique — Saves Piriformis And (Obturator) Internus with Repair of (Obturator) Externus — starts from a different premise: the posterior tendons are preserved intact rather than divided and later repaired. Because the piriformis and obturator tendons remain continuous, their Golgi tendon organs and muscle spindles continue delivering positional feedback to the nervous system from day one. The hip is not left neurologically vulnerable in the way it can be after a traditional posterior approach, where those mechanoreceptors are severed and the joint must wait for tissue regeneration to restore that signalling. For patients treated with SPAIRE, the need for strict 90-day precautions is substantially reduced, which means standard chair and toilet heights are less likely to present the same barrier in early home life. Professor Paul Lee's recovery pathway is built explicitly around this principle — designing the discharge environment around what the biology of the technique actually permits, rather than applying one-size precautions regardless of how the surgery was performed.

That said, home preparation remains sensible for all patients in the first fortnight. Firm chairs with arms make sitting and rising easier when the hip muscles are still weak; low sofas are awkward for anyone in early recovery. If you are unsure which precautions apply to you specifically, your surgical team's discharge guidance takes precedence over general advice.

Warning signs that need prompt attention

If in doubt, contact the ward, your surgical team's direct line, or NHS 111 — that instruction takes priority over everything else in this section.

Four categories of symptom warrant prompt action:

• Possible DVT: Calf pain, redness, warmth, or one leg swelling noticeably more than the other should prompt same-day contact. Some leg swelling is expected after surgery; asymmetric swelling with calf tenderness is different.
• Wound infection: Redness spreading outward from the incision, warmth to the touch, discharge, or a wound that looks worse rather than better after day five. A mild temperature in the first two to three days can be normal; a sustained fever above 38°C is not.
• Possible dislocation: Sudden severe hip pain, or a sensation that the joint has shifted or given way, requires emergency assessment — do not wait to see whether it settles.
• Chest pain or breathlessness: Call 999 immediately. Pulmonary embolism is uncommon after hip replacement, but it is a recognised risk and moves quickly.

Before leaving hospital, patients receive written guidance naming exactly who to call at each stage. Locate that document and keep it somewhere you can find it at 2 a.m.

What week two feels like

Around day ten, something quietly shifts. The nerve-block days and the days-3–5 peak are behind the patient; the leg still feels heavy and fatigue remains real, but the trajectory has turned. Pain and swelling are typically meaningfully reduced compared to that early peak — not gone, but manageable enough that basic daily tasks begin to feel less like an ordeal and more like a routine.

For many patients, the crutch transition happens somewhere in this window: moving from two crutches to a single crutch or cane reflects genuine gains in strength and hip confidence. It is worth noting that this is a common trajectory, not a timetable — some patients stay on two crutches through day 14 and that is entirely within normal range. Progress is best judged against where you were at day five, not against a chart.

The stitch or clip removal appointment — usually booked with a GP practice nurse around day 10 to 14 — provides a concrete checkpoint that most patients find grounding. A nurse checks the wound, confirms it is healing cleanly, and removes the fixings; any concerns about the incision can be raised here rather than carried silently into week three.

The next formal milestone is the 6–12 week follow-up with the surgical team. Week two is steady preparation for that appointment: building a little more distance each day, resting when fatigue demands it, and letting the biology do its work.