Most people are familiar with rehabilitation. Prehabilitation is less well known, but the evidence for its impact on surgical outcomes is just as compelling. Understanding the difference between the two, and how they work together across the surgical pathway, is increasingly important for clinicians, commissioners and patients making decisions about perioperative care.
Defining the Two Terms
Rehabilitation refers to the structured process of restoring function after an illness, injury or surgical procedure. It begins in the postoperative period and focuses on rebuilding strength, mobility, independence and quality of life. Physiotherapy after a hip replacement, breathing exercises following cardiac surgery, and gradual return-to-activity programmes after cancer treatment are all examples of rehabilitation in practice.
Prehabilitation, by contrast, takes place before surgery. Rather than restoring function that has been lost, it builds the physical, nutritional and psychological reserves a patient needs to withstand the demands of surgery and recover from it more effectively. Prehabilitation does not replace rehabilitation. It improves the starting point from which rehabilitation begins.
A useful way to think about the distinction is this: rehabilitation asks how quickly a patient can recover from where surgery leaves them. Prehabilitation asks how much better that starting point can be. Both questions matter. Addressing only one of them means leaving a significant portion of the potential recovery gain on the table.
What Each Intervention Covers
Rehabilitation programmes vary widely depending on the procedure and the patient, but they typically focus on restoring functional capacity, managing postoperative pain, preventing complications such as deep vein thrombosis or respiratory infection, and supporting the patient back to their pre-surgical baseline. In complex cases, rehabilitation may extend for months and involve multiple disciplines including physiotherapy, occupational therapy, dietetics and psychology.
Prehabilitation covers similar domains but applies them in the pre-operative window. A well-designed multimodal prehabilitation programme addresses physical conditioning through structured exercise, nutritional optimisation through dietary assessment and supplementation where needed, and psychological preparation through anxiety management, goal-setting and mindfulness techniques. Some programmes also incorporate smoking cessation and sleep support.
The timeframes are different too. Rehabilitation is ongoing and responsive, shaped by how the patient recovers day by day. Prehabilitation operates within a fixed pre-operative window that may range from two weeks to several months depending on the procedure and urgency. That constraint makes delivery more challenging, but it also means the intervention is highly time-targeted, with a clear endpoint and a defined purpose.
Why Doing Both Produces Better Outcomes
Prehabilitation and rehabilitation are not competing approaches. They are complementary interventions that address different phases of the same journey, and the evidence shows that combining them produces better outcomes than either delivers alone.
The logic is straightforward. A patient who arrives at surgery with better physiological reserve (the body’s capacity to absorb and recover from stress) will experience fewer postoperative complications, spend less time in hospital and begin rehabilitation from a stronger baseline. Rehabilitation then has less ground to recover. Progress is faster, adherence is higher and outcomes are better.
According to a systematic review published in the British Journal of Anaesthesia, patients who completed multimodal prehabilitation experienced 64% fewer postoperative complications than those receiving standard care alone. Fewer complications mean less disruption to rehabilitation, fewer setbacks and a smoother recovery trajectory overall. The two interventions reinforce each other in ways that benefit the patient at every stage.
According to research from McGill University examining colorectal cancer surgery patients, those who completed a prehabilitation programme returned to baseline functional capacity significantly faster than those who received rehabilitation alone. The gap was not marginal. Patients who had prepared well before surgery were simply in a better position to respond to rehabilitation afterwards. For a deeper look at what the research shows across surgical specialties, see our post on the evidence behind prehabilitation.
Where Prehabilitation Is Currently Underused
Despite the evidence, prehabilitation remains far less embedded in clinical practice than rehabilitation. Most surgical pathways have well-established postoperative rehabilitation protocols. Pre-operative preparation, beyond basic fasting and medication instructions, is rarely structured or formalised. Patients are advised to stay active and eat well before surgery, but very few receive a supervised, personalised programme designed to measurably improve their pre-operative condition.
The reasons for this are partly logistical and partly historical. Rehabilitation has decades of infrastructure behind it: dedicated hospital departments, community physiotherapy services, referral pathways and commissioning frameworks. Prehabilitation has none of that at scale. Delivery has depended on specialist teams in large teaching hospitals, and access has been highly unequal as a result. A patient at a major cancer centre may have access to a structured prehabilitation programme. A patient at a district general hospital almost certainly will not. We examine this access gap in detail in our post on why 90% of surgical patients miss out on prehabilitation.
There is also a health literacy dimension to consider. Many patients do not know that prehabilitation exists, let alone that it could meaningfully affect their recovery. Rehabilitation is something that happens to patients after surgery. Prehabilitation requires patients to take an active role before it, which demands both awareness and motivation. Closing the gap between evidence and practice requires addressing both the infrastructure problem and the patient engagement problem simultaneously.
How the Two Work Together on the Surgical Pathway
The most effective perioperative care model treats prehabilitation and rehabilitation not as separate programmes but as a continuous, connected journey. Perioperative care frameworks that span the full pathway, from diagnosis through to functional recovery, consistently produce better outcomes than fragmented interventions delivered in isolation.
ERAS (Enhanced Recovery After Surgery) protocols have already demonstrated what a structured, evidence-based approach to the postoperative period can achieve. Length of hospital stay has fallen significantly across ERAS-adopting trusts, and complication rates have improved. Prehabilitation represents the natural extension of that logic into the pre-operative period. Together, ERAS and prehabilitation cover the full surgical episode in a way that neither does alone.
Risk stratification plays an important role in how this works in practice. Patients with higher baseline risk, including those with frailty, comorbidities or signs of sarcopaenia, benefit most from prehabilitation and are also the patients for whom rehabilitation is most intensive. Identifying these patients early and ensuring they receive structured pre-operative preparation directly reduces the rehabilitation burden downstream. It is a more efficient use of clinical resources at both ends of the pathway.
How Clovo Can Help
Clovo is designed to support patients across the full perioperative journey, from prehabilitation through to postoperative recovery. Amy, our AI recovery coach, delivers personalised programmes across movement, nutrition and mindset in the pre-operative window, then transitions seamlessly into post-operative support as the patient moves through surgery and into rehabilitation. Rather than treating the two phases as separate interventions requiring separate referrals, Clovo provides a single, continuous programme that adapts to where the patient is in their journey at any given moment.
This connected approach reflects what the evidence supports and what patients actually need. CEO Rory Skinner, CMO Dr Rebecca Hughes MRCS and CTO Dr Matthew Higgs-McCallum built Clovo specifically to close the gap between the fragmented care most patients currently receive and the continuous, personalised support the research shows produces the best outcomes. To understand how Amy builds and adapts a personalised programme for each patient, see how Clovo builds your personalised recovery plan. To learn how Clovo integrates with existing NHS pathways, visit Clovo and NHS integration.
Prehabilitation and rehabilitation are two sides of the same coin. Used together, they represent the most complete approach currently available to optimising surgical outcomes across the full perioperative pathway. As the evidence base continues to grow and digital platforms make delivery at scale increasingly viable, the question is no longer whether both should be standard practice. It is how quickly we can make that a reality for every patient.
| Related Reading |
| What is Prehabilitation? A Complete Guide for Surgical Patients New to the concept of prehabilitation? This is the definitive starting point, covering what it is, who it is for and how it works. |
| The Evidence Behind Prehabilitation: What the Research Actually Says A deep dive into the clinical studies behind prehab, including the key statistics on complication rates, hospital stays and functional recovery outcomes. |
| How Clovo Builds Your Personalised Recovery Plan Learn how Clovo creates a connected programme spanning prehabilitation and rehabilitation, personalised to each patient from day one. |
