Lumbar Spine
TLIF / PLIF (Lumbar Fusion)
Posterior lumbar interbody fusion combined with decompression — for spondylolisthesis, instability, or stenosis where slip or motion is part of the problem.
What it is
TLIF (transforaminal lumbar interbody fusion) and PLIF (posterior lumbar interbody fusion) are closely related operations. Both decompress the nerves and stabilize the segment in a single procedure: the disc is removed, an interbody cage with bone graft is placed between the vertebrae, and pedicle screws and rods hold the segment while bone fusion completes over months.
TLIF approaches the disc from one side through the neural foramen; PLIF approaches from both sides. The choice depends on anatomy and what we need to accomplish. In practice, TLIF is more common today because it requires less retraction of the nerve roots.
Why this procedure when surgery is needed
When the problem isn't just stenosis but also instability — a spondylolisthesis that moves on flexion-extension films, a degenerative scoliosis at the affected level, or revision surgery where prior decompression destabilized the segment — fusion is the more durable answer.
Combining decompression and fusion in one operation handles both the nerve compression causing your leg symptoms and the structural problem causing your back pain. It's a bigger operation than decompression alone, but for the right patient it provides a more reliable long-term result.
What to expect
Surgery typically takes 2.5–4 hours.
Most patients stay 1–2 nights in the hospital.
Walking begins the same day with physical therapy support.
Return to desk work in 4–6 weeks; driving in 2–4 weeks when off narcotics.
Activity restrictions for 3 months while fusion matures.
Bony fusion is typically solid by 6 months; we confirm with imaging.
Risks and how we reduce them
A fusion is a bigger operation than a decompression alone and adds the risks of instrumentation and of relying on bone to heal — this is an honest account of those trade-offs.
Expected, temporary effects
Incisional and muscle soreness. The exposure is larger than a simple decompression, so expect more back and muscle soreness in the first weeks.
Temporary leg dysesthesia. Gently moving the nerve roots to place the interbody cage can leave temporary numbness, tingling, or a sunburn-like sensation in the leg that usually settles over weeks.
Serious risks
Nonunion (pseudarthrosis). The bone may fail to fully fuse, which can cause ongoing pain and sometimes requires revision surgery. Nicotine strongly impairs fusion, which is why we ask patients to stop before surgery. Fusion is confirmed on follow-up imaging.
Hardware problem. Screws or rods can loosen, shift, or sit in a suboptimal position, occasionally requiring a revision. Intraoperative navigation is used to place instrumentation accurately.
Dural tear (CSF leak). A tear in the lining around the nerves can occur and is repaired at the time of surgery.
Nerve-root injury. Retracting the nerve roots to reach the disc carries a small risk of injury, which can cause new weakness or numbness.
Blood loss. Fusions involve more blood loss than decompressions, and a transfusion is occasionally needed.
Adjacent-segment degeneration. Over years, the levels next to a fusion carry more load and can wear out faster, sometimes leading to further surgery down the line.
Blood clot (DVT/PE). Clots in the legs or lungs are a risk of any larger operation and are reduced with early walking and preventive measures.
Your recovery, phase by phase
A general timeline for this procedure. Your surgeon’s own protocol takes precedence — use this to know what to expect and what questions to ask at each visit.
Before surgery
- Stopping all nicotine is the single most important thing you can do before a fusion — nicotine slows bone healing and raises the risk of the fusion not taking.
- Review every medication and supplement with the pre-anesthesia team; blood thinners, NSAIDs, GLP-1 medications, and some supplements are held on a schedule set for you.
- Shower with Hibiclens the night before and the morning of surgery, and stop eating after midnight; the anesthesia team sets your clear-liquid cutoff.
- Plan for help at home for the first one to three weeks and a ride to and from the hospital.
The day of surgery
- Arrive about two hours early to check in, change, have an IV placed, and meet your surgical team.
- The operation is done under general anesthesia and typically takes about two and a half to four hours.
- You are positioned face-down (prone) while asleep, with pressure points carefully padded; intraoperative imaging or navigation is often used to place the screws.
- Your family waits nearby and receives periodic updates during the case; Dr. Tuchek speaks with them once the operation is finished.
In the hospital
- You spend one to two nights in the hospital. Grogginess and incisional pain are expected and managed with a multi-part pain plan.
- Physical therapy helps you stand and walk the same day or the next morning; walking is a core part of recovery.
- You go home once you are walking safely, managing pain on oral medication, and your bladder and bowels are working normally.
The first two weeks
- Incisional and muscle soreness are the main discomfort, and fatigue is normal — a fusion is a bigger operation than a decompression.
- Walk frequently, but avoid bending, lifting, and twisting while the fusion begins to heal.
- Keep the incision clean and dry and follow your discharge instructions; some patients are given a brace to wear as directed by their surgeon.
- Driving and return to work wait until your surgeon clears you and you are off narcotic pain medication.
Weeks 2 to 6
- Activity increases slowly. Bending, lifting, and twisting limits usually continue for several weeks — follow the specific protocol your surgeon gives you.
- Many patients return to desk work around four to six weeks; structured physical therapy is typically started once your surgeon approves it.
- A follow-up visit, sometimes with X-rays, checks how the fusion is progressing.
Long-term recovery
- The bone fusion matures over several months; it is usually solid by around six months, which we confirm with imaging.
- As the fusion heals, activity restrictions are lifted in stages and most patients return to full activity on their surgeon’s timeline.
Milestone checkpoints
| Window | Milestone | What to expect |
|---|---|---|
| Post-op days 1-3 | Walk with physical therapy | Walking begins the day of surgery with physical-therapy support during the 1-2 night hospital stay, then short, frequent walks continue at home. |
| Post-op days 1-3 | Shower | Keep the incision dry for the first 48 hours, then a normal shower is generally fine unless you are told otherwise — no scrubbing, pat dry. No soaking or swimming. Follow your discharge instructions. |
| Surgeon-directed | Lumbar brace | Some fusion patients are fitted with a back brace. If you are given one, wear it exactly as, and for as long as, your surgeon directs. |
| Checkpoint | Driving | Resume once you are off all narcotic pain medication and able to operate the vehicle safely — often around 2-4 weeks after a fusion. Your surgeon confirms this at follow-up. |
| Checkpoint | Return to work | Desk work is typically possible around 4-6 weeks; physically demanding jobs take longer. Your surgeon clears the timeline that fits your operation and your job. |
| Week 6 | Activity progresses while fusion matures | Activity restrictions generally continue for about three months while the bone fuses, which is typically solid by around six months and confirmed on imaging. Progress per your surgeon's protocol, not a fixed date. |
| Any time | When to call | Call the office for fever, drainage or spreading redness at the incision, or calf pain or one-sided leg swelling. New or worsening leg weakness or numbness, or any loss of bowel or bladder control, is an emergency — call 911. The clinic phone line is not an emergency line. |
Prepare and recover
Handouts that fit this surgery. These are being finalized in physician review — visit the patient education library to see what is available, and always follow your own surgeon's specific protocol.
Prepare for this surgery
Recover from this surgery
Approach
- Posterior midline approach with operating microscope
- Decompression at the affected level(s)
- Interbody cage with bone graft, including allograft and local autograft
- Pedicle screw and rod construct, often placed with intraoperative navigation
- Multimodal pain control and early mobilization protocol
Typical indications
- Spondylolisthesis with leg or back pain unresponsive to conservative care
- Stenosis with documented instability on flexion-extension imaging
- Recurrent stenosis after prior decompression
- Iatrogenic instability from prior surgery
- Foraminal stenosis requiring removal of stabilizing structures
Alternatives we considered
- Laminectomy alone if there is no instability
- Lateral or anterior interbody fusion (XLIF, ALIF) in select cases
- Continued conservative care for mild or stable symptoms
- No surgery — observation if function is reasonable and progression is not occurring
Related conditions
This procedure is most often performed for:
Videos for this procedure
- Preparing for Your Spine Surgery (Ages 50–65)(in production · 9 min)
Medical review in progress. Author: practice editorial team.
The information on this page is general patient education and is not a substitute for individualized medical advice. For urgent symptoms, call 911 or go to the nearest emergency department. For non-urgent questions, call (785) 368-0767 during clinic hours.
Not sure whether a symptom needs a call? When to call after surgery