Smoking and Musculoskeletal Healing Info Evidence

What it is

Smoking affects more than your lungs and heart. It also slows down how well your body heals after bone, joint, tendon and ligament surgery. This page explains why, and what it means for your operation.

Nicotine, the addictive chemical in tobacco, narrows the small blood vessels that carry oxygen and nutrients to healing tissue. It has a dose-dependent effect on bone healing, bone growth and implant integration [1]. That means the more nicotine your body gets, the more it can interfere with healing. Bone needs a steady blood supply to knit together, and implants need healthy bone to bed into.

The effects show up across many types of surgery. Smokers face a higher risk of medical and surgical complications after elective hip or knee replacement [2]. After rotator cuff repair, heated tobacco products have a similar harmful effect on tendon healing as cigarettes [3]. Smokeless tobacco is linked to more complications after ACL reconstruction [4, 5] and after hip replacement [6]. For ankle and heel fracture surgery, smoking raises the risk of infection in the wound [7]. Nicotine dependence before upper arm fracture surgery carries a 60-110% increased risk of complications such as infection, wound breakdown, nonunion (a fracture that fails to heal) and reoperation [8].

The good news is that smoking is a modifiable risk factor [9, 10]. That means it is something you can change. Quitting matters. Former smokers who quit more than 6 months before rotator cuff repair show no detectable rise in infection or revision surgery compared with people who have never smoked [11]. Your doctor can talk with you about stopping, and about nicotine replacement options, well before your operation date.

Does it work?

The honest answer is that surgery can still work for smokers, but the evidence shows it often works less well. Studies of shoulder replacement found that current smokers may have poorer function afterwards than people who never smoked or who quit [12]. The rate of complications and revision surgery was similar between the groups [12]. So the implant itself may hold up, but how your shoulder feels and moves may not reach the same level.

Nicotine on its own, without tobacco, also matters. Research on shoulder replacement found that nicotine dependence from sources other than smoking was linked to more wound breakdowns and infections in the first 90 days, and more loosening and joint infections at 2 years [13]. After keyhole rotator cuff repair, people with nicotine dependence needed more follow-up cuff repairs and more procedures to free up a stiff shoulder or clean out the joint, at both 2 and 5 years [14].

The same pattern appears elsewhere. After ACL reconstruction, people who had never smoked were more likely to gain good knee function than smokers [15]. For knee replacement, smoking seems to affect the early recovery period rather than pain levels alone [16]. For fracture surgery, nicotine's effect on bone healing depends on the dose, and this has been shown in animal and laboratory studies [1]. Surgeons are advised to ask every patient with a scaphoid fracture, a small wrist bone, whether they smoke or use smokeless tobacco, because both raise the chance of the fracture failing to heal [17].

Some of this evidence is stronger than others. Much of it comes from large patient records rather than trials where people are randomly split into groups. A few findings are mixed. One study found smoking carried a higher risk of complications than smokeless tobacco after knee replacement [18], which suggests no tobacco product is clearly safe around surgery.

What this means for you is simple. Quitting before your operation gives your body the best chance to heal well, and the earlier you stop, the better.

What are the risks?

The main risks are the ones already described: slower healing, wound problems and infection. But there are some details worth knowing.

Nicotine from any source, not just cigarettes, raises the chance of wound breakdown, infection and serious spread of infection in the first 90 days after shoulder replacement [13]. It also raises the chance of the implant loosening or becoming infected at 2 years [13]. This includes nicotine from pouches, gum or other products that contain no tobacco at all.

Some risks depend on where you are having surgery. Smoking raises the risk of infection in the wound after ankle and heel bone fracture surgery [7]. After knee replacement, smoking seems to affect the early recovery period most [16]. For fractures of the scaphoid, a small bone in the wrist, both smoking and smokeless tobacco use are flagged as signs that the bone may fail to heal [17].

Not every risk is confirmed. One study of a specific type of lower spine operation found smoking did not slow bone fusion when a standard technique was used [19]. Newer techniques and bone-healing additives may offset some of smoking's effects in that setting [20]. So the picture is not the same for every operation.

The clearest risk is the one you can change. Nicotine is a modifiable risk factor in rotator cuff surgery [10]. Quitting more than 6 months before rotator cuff repair shows no detectable rise in infection or revision surgery compared with people who have never smoked [11].

Is it right for you?

There is no simple yes or no here. Smoking does not rule you out of surgery, but it changes the conversation you and your doctor need to have. The evidence shows that tobacco and nicotine affect healing across many operations, from wrist fractures to shoulder and knee replacements. So the question is less about whether you can have surgery, and more about how to give your body the best chance of healing well.

That is why screening matters. Surgeons are advised to ask every patient with a scaphoid fracture whether they smoke or use smokeless tobacco [17], and to ask about all forms of tobacco use before ACL reconstruction [4, 5]. Nicotine from sources other than tobacco is part of that check too [21]. If you use any of these, telling your doctor early means you can plan around it, including quitting well before your operation date.

Some situations need extra care. If you are a current or recent smoker having shoulder replacement, research suggests a hospital stay of at least 2 nights may help in the early recovery period [22]. And after knee replacement, smoking seems to affect the early recovery most [16], so closer follow-up in those first weeks can make a difference.

This is a shared decision. Bring up your smoking or nicotine use honestly, ask what it means for your specific operation, and weigh the risks described in the section above against the benefit you hope to gain. Your doctor can help you decide on timing, and whether quitting first makes sense for you.

The bottom line

If you smoke or use nicotine in any form, it is worth stopping before your operation. Quitting is the one risk factor you can change, and the earlier you stop, the better. Surgery can still work for smokers, but your body gets a better chance to heal without nicotine slowing it down. The main caveat: nicotine from any source, including pouches and gum, affects healing too, so stopping tobacco alone may not be enough.

Smoking and Musculoskeletal Healing Info Evidence

What it is

Does it work?

What are the risks?

Is it right for you?

The bottom line

Overview

How It Works

What the Evidence Shows

Spine and Arthrodesis

Shoulder and Rotator Cuff

Knee and Hip Arthroplasty

Ligament Reconstruction

Fractures and Bone Healing

Cartilage and Meniscus

Practical Considerations

Preoperative Screening and Risk Assessment

Cessation Timing and Duration

Impact on Healing and Outcomes

Mitigation and Management

Key Evidence

References