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Nephropexy
Nephropexy is a surgical procedure that repositions and fixes a mobile, "floating" kidney back in its normal place in the upper abdomen, so it no longer drops down when you stand. It's used to treat nephroptosis when the kidney's movement is causing pain, urinary problems, or kidney damage.
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Briefly about this treatment
Indications
Symptomatic nephroptosis — a kidney that drops more than two vertebral bodies, or about 5 cm, when moving from lying to standing — causing positional flank pain, recurrent urinary infections, hydronephrosis, or a Dietl's crisis that hasn't improved with a supportive lumbar belt or physical therapy.
Risks
Bleeding, infection, injury to nearby organs or blood vessels, and the kidney remaining mobile after surgery. Risks are minimised by careful patient selection and experienced surgical teams.
Pre-procedure
Standard blood work, upright imaging (ultrasound, Doppler and intravenous pyelography) to confirm the diagnosis, anaesthesia consultation, and fasting per protocol.
Follow-up
Scheduled clinic visits at 1, 4 and 12 weeks, with follow-up upright imaging to confirm the kidney has stayed in position, alongside longer-term monitoring for recurrence.
What is Nephropexy? An expert explains
Nephropexy is the surgical intervention that repositions and fixes a floating or mobile kidney in place, done to prevent it from descending (nephroptosis) or, less commonly, to deliberately reposition a kidney to compensate for a shortened ureter. The procedure was first performed in 1881, and while it originally used a large open incision, minimally invasive laparoscopic nephropexy is now the standard approach.
In plain terms: your surgeon anchors the outer layer of the kidney (the renal capsule) to the muscle behind it — usually the psoas muscle — using stitches, and sometimes a soft surgical mesh, so the kidney can no longer slide down when you stand.
Signs it may be time for Nephropexy
Nephropexy is only considered when nephroptosis is causing symptoms — an incidental finding on a scan isn’t, by itself, a reason for surgery. Symptoms a urologist looks for include:
- Positional flank pain — persistent pain in the side or lower back that worsens when standing or moving and eases when lying down.
- Recurrent urinary problems — repeated urinary tract infections, blood in the urine, or hydronephrosis (kidney swelling) from the ureter kinking as the kidney drops.
- Dietl’s crisis — sudden, severe, colicky flank pain with nausea, vomiting, chills, and sometimes changes in blood pressure or urine output.
- No improvement with conservative measures — a supportive lumbar belt or targeted physical therapy, which are usually tried first, hasn’t helped.
These are the conditions linked to this treatment in the directory. Your clinician decides whether treatment is appropriate using your symptoms, examination and test results.
- Vesicoureteral Reflux (VUR) — Backflow of urine from bladder to kidneys.
- Vesicoureteral Reflux Nephropathy — Reflux of urine damages kidney tissue.
- Renal Cell Carcinoma (RCC) — Most common kidney cancer in adults.
- Renal Ptosis — Downward displacement of kidney on standing.
- Urachal Cyst — Midline cystic lesion between bladder and umbilicus.
Remember: These entries are not a diagnosis or a treatment recommendation. Discuss your symptoms and test results with a qualified clinician.
When to consult a specialist
If you notice pain in your side or lower back that consistently shows up when you’re upright and eases when you lie down, it’s worth getting checked — this pattern is easy to miss on a standard scan, because imaging is usually done lying down. In most cases a floating kidney causes no problems at all, and simple steps like a supportive belt or physiotherapy are often tried first, so there’s no need to panic. A urologist can confirm what’s going on with the right imaging and talk you through whether any treatment, including nephropexy, is actually needed. Use the „Find a specialist” link to connect with a verified urologist and get a clear answer.
How a session works
Before surgery, your urologist confirms the diagnosis and rules out other causes of flank pain. This typically involves an ultrasound scan to see the kidney’s position, a Doppler scan to check blood flow, and intravenous pyelography (IVP) to image the kidney while standing, since lying-down scans can look completely normal. You’ll also be asked about smoking and general health, since quitting beforehand can support a faster recovery.
On the day of surgery, nephropexy is done under general anaesthetic. There are several surgical approaches, and your urologist will recommend the one that fits your anatomy and symptoms:
- Laparoscopic nephropexy (standard today): a minimally invasive keyhole approach using a few small incisions.
- Robotic-assisted nephropexy: the same principle, performed with robotic instrument control for extra precision.
- Percutaneous nephropexy: a less-invasive alternative stabilizing the kidney through a single small access point.
- Open nephropexy: a traditional larger-incision approach, now uncommon, reserved for complex or repeat cases.
Whichever approach is used, the kidney’s capsule or surrounding fascia is secured high in the retroperitoneum, typically to the psoas or quadratus lumborum muscle, using non-absorbable sutures and sometimes surgical mesh.
Session duration
1-3 hours
recorded for this treatment
Cost verify
$5000–$20000
indicative range
Anesthesia
General
recorded for this treatment
Remember: The exact steps, duration and preparation can vary with your indication, health and care setting. Confirm the current plan with your treating team.
Benefits
For people whose symptoms are genuinely linked to a mobile kidney, nephropexy aims to settle the pain and functional problems the movement is causing, usually through a minimally invasive approach.
- Relief from positional flank pain caused by the kidney dropping out of place.
- Resolution of urinary problems linked to nephroptosis, such as recurrent infections or hydronephrosis from ureter kinking.
- A minimally invasive option (laparoscopic, robotic or percutaneous) means smaller incisions, less blood loss and a shorter hospital stay than open surgery.
- Case series report meaningful symptom relief in most treated patients: one percutaneous series found complete pain resolution in 9 of 11 patients, and a retroperitoneoscopic series reported roughly 4 in 5 patients pain-free after about a year. (Small case series — outcomes vary by technique, surgeon and patient selection; not a guaranteed personal outcome.)
Risks & side effects
The treatment has risks and trade-offs to discuss with your care team. The information below comes from this treatment’s data: bleeding, infection, and vascular access or wound-site issues. Risks are minimised by careful patient selection and experienced surgical teams.
- As with any surgery under general anaesthetic: bleeding, infection at the incision site, injury to nearby organs or blood vessels, and reaction to anaesthesia.
- For minimally invasive approaches, a small chance of needing to convert to open surgery if visibility or safety requires it.
- The kidney may still move somewhat, or symptoms may not fully resolve — nephropexy doesn’t guarantee symptoms will go away, which is one reason it isn’t recommended for people without symptoms.
- Recurrence — in rare cases the kidney becomes mobile again and a repeat procedure is needed.
- Discomfort from the sutures or mesh used to anchor the kidney, which usually settles during recovery.
Who it may not suit: these are general cautions, not a personal verdict. A qualified clinician must assess your full medical picture before recommending or delaying treatment.
What happens during & after
Immediately after surgery, you’ll be monitored in a recovery area as the anaesthetic wears off. In one case series using the percutaneous technique, the average postoperative hospital stay was two days; laparoscopic and robotic approaches often involve a similarly short stay of one to a few days, while open surgery typically requires a longer admission. Pain in the first days after surgery is normal and is managed with medication; in one series, patients needed opioid pain relief for less than a day after a retroperitoneoscopic approach.
Follow-up imaging (often an upright ultrasound or urogram) may be used to confirm the kidney is staying in position.
Possible complications
Most people recover without issue, but it’s worth knowing what to watch for so you can get help quickly if something isn’t right. Tell your care team promptly if you notice:
- Fever, or increasing redness, swelling or discharge at an incision site.
- Pain that’s worsening rather than improving.
- Blood in your urine that doesn’t clear.
- Difficulty passing urine.
These can be signs of infection, bleeding, or a problem with kidney drainage and should be assessed quickly rather than waited out.
Remember:
New or severe symptoms require prompt medical advice. Do not wait for a routine appointment if you feel seriously unwell.
Recovery
Recovery after nephropexy is generally quicker when a minimally invasive technique is used, though it still takes a few weeks to feel fully back to normal.
- Light activity is usually resumed gradually, with strenuous activity, heavy lifting and contact sports avoided until your surgeon clears you.
- In one study, patients returned to their usual activities around fourteen days after surgery. (Recovery timelines vary by technique and individual health — an illustrative range, not a promise.)
- Many patients return to normal daily activity within about two weeks after a minimally invasive procedure, though physically demanding jobs may need longer.
- Follow-up imaging (often an upright ultrasound or urogram) confirms the kidney is staying in its new position — this is something to track with your surgeon rather than self-diagnose.
Clinics offering Nephropexy
Verified kidney centres linked to this treatment in the KidneyGlobal directory.
University Hospital
Urologic Oncology & Robotic Surgery
ISO 9001European Urology Boardda Vinci Robotic Center
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Academic Medical Center
Minimally Invasive Urologic Surgery
Joint CommissionNCI Cancer CenterRobotic Surgery Excellence
✓ 24/7 ER✓ ICU✓ Insurance
Academic Medical Center
Kidney Transplantation
Joint CommissionUNOS CertifiedLiving Donor Excellence
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Good questions
Most Common Questions
Is nephroptosis dangerous?
Usually not. It's common but, in most cases, completely asymptomatic and often found incidentally on imaging done for another reason. Only a minority of people develop symptoms serious enough to need treatment.
Do I need surgery if I have a floating kidney?
Not necessarily. Nephropexy is only recommended when nephroptosis is causing symptoms — pain, infections, or kidney swelling. Many people are managed first with a supportive belt or physiotherapy.
Who performs nephropexy?
A urologist — it's a structural, anatomical procedure on the kidney's position, not a kidney-function (nephrology) treatment.
Will I be awake during the procedure?
No — nephropexy is done under general anaesthetic, so you're asleep throughout.
Is it open surgery or keyhole surgery?
Today it's most often done laparoscopically (keyhole) or robotically. Open surgery is reserved for specific, usually complex, cases.
What's the success rate?
Reported symptom-relief rates vary across small published case series, generally in the range of roughly 80–90%, but results depend heavily on patient selection, technique and surgeon experience — ask your urologist about outcomes at your specific centre.
Sources
- Nephroptosis: Practice EssentialsMedscape eMedicine
- Nephroptosis Treatment & ManagementMedscape eMedicine
- Percutaneous nephrostomy for symptomatic hypermobile kidney: a single centre experienceVideosurgery and Other Miniinvasive Techniques (PMC)
- Retroperitoneoscopic nephropexy case seriesAktuelle Urologie (Thieme)
- V03: 05 Approaches to Robotic NephropexyJournal of Endourology (Henry Ford Health)
- NephropexyWikipedia