Lumbar Disc Replacement

A worn-out disc has two surgical answers

Both operations remove the painful disc. The difference is what happens to the motion afterwards.

2The basics

Who it is for, and who it is not for

A good candidate

One worn-out disc between L3 and S1, usually L4-5 or L5-S1, with pain coming from the disc itself
Back pain more than leg pain; the disc wear is confirmed on MRI and matches the symptoms
At least six months of nonsurgical care that did not work
Healthy bone: a bone-density T-score better than minus 1.0
Healthy facet joints behind the disc, and no more than a slight slip of the vertebra
Age 18 to 60 for most insurers; a fully grown skeleton for the FDA

Not a candidate

Osteoporosis or osteopenia (T-score of minus 1.0 or worse)
Worn-out, arthritic facet joints; a stress fracture (pars defect) or a slipped vertebra
Spinal stenosis, or nerve pain down the leg as the main problem
A previous fusion at that level, or more levels than the device is approved for
Scoliosis, infection, or allergy to the metal or plastic in the implant
Insurers add: severe obesity, nicotine use, and untreated depression or substance use

FDA approval labeling for prodisc L and activL; Aetna, Cigna and Carelon medical policies, 2026. FDA 2020 FDA 2015 Aetna 2026 Cigna 2026 Carelon 2026

FDA 2020 · FDA 2015 · Aetna 2026 · Cigna 2026 · +1

3The basics

of patients satisfied five years after surgery, the same as after fusion, in the largest US trial

Does it work? Yes, as well as fusion

77%

ProDisc-L trial, 5 years Zigler 2012

82%

would have the same surgery again, versus 68% of fusion patients

ProDisc-L trial, 5 years Zigler 2012

6% vs 12%

repeat operations with disc replacement versus fusion, pooled from 13 randomized trials

Meta-analysis, 2,349 patients Patel 2026

4What the studies show

completely pain-free at five years, versus 15% after fusion

Why patients choose it

38%

Swedish randomized trial Sköld 2013

66%

working full-time at five years, versus 47% after fusion

Charité trial Guyer 2009

95%

of athletes back to their sport, most within six months

39 athletes Siepe 2007

still taking opioids at seven years in the activL trial

283 patients Radcliff 2021

5What the studies show

any complication in the hospital, replacement versus fusion, after matching patients

In the hospital: fewer complications, less blood loss

7 vs 13%

8,049 replacements vs 1.13 million fusions, US database 2010 to 2019 Upfill-Brown 2022

3 vs 8%

blood transfusion

Same database Upfill-Brown 2022

$4,500

lower hospital cost, and about two-thirds of a day shorter stay

Same database Upfill-Brown 2022

6What the studies show

bending motion at the operated level five years after replacement versus fusion

It keeps the level moving

6 vs 1°

Charité trial, 5 years Guyer 2009

9 in 10

operated levels still moving more than ten years later, with about 10° of bend

106 patients, mean 13 years David 2007

Normal

range of motion in 94% of patients at two years, held steady through year five

ProDisc-L trial Zigler 2007

Caveat

over many years some levels slowly stiffen or bridge with bone; in the long-term studies this rarely changed how patients felt

15-year series Lu 2018

7What the studies show

implants removed or exchanged over twenty years of use at one high-volume center, 2,141 patients

How long does it last?

1 in 80

Device removal or revision 1.26% Guyer 2024

15 yrs

the longest published follow-up: 93% good or excellent results and no device failures in 30 patients

Charité III, mean 15.2 years Lu 2018

~1 in 10

patients have some further spine surgery within ten years: a fusion added at that level, or surgery at a neighbouring level

10-year series David 2007

None

no 20-year studies yet: the first modern devices date from the late 1980s and published follow-up stops at about 15 years

What we do not have Lu 2018

8What the studies show

Does it wear out like a knee replacement?

Knee replacement

82% still in place at 25 years Evans 2019
Carries your full body weight with every step
Today's knees fail mostly from loosening or infection, not plastic wear Sharkey 2014

Disc replacement

Same metal-on-plastic bearing idea, under far smaller loads and motion
Retrieved implants show small wear: about 0.3 mm after up to 16 years Kurtz 2007
Bone loss from wear particles is rare Punt 2012; removal for any reason about 1 in 80 Guyer 2024

Neither implant is forever, and neither is likely to wear out in a lifetime of normal use. A disc replacement is not immune to wear; it is simply a lightly loaded joint.

Evans 2019 · Sharkey 2014 · Kurtz 2007 · Punt 2012 · +1

9What the studies show

neighbouring discs showing new wear on X-ray at five years, replacement versus fusion

Protecting the discs next door

9% vs 29%

ProDisc-L trial Zigler 2012

2% vs 4.5%

surgery at a neighbouring level: 1,000 replacement patients versus published fusion rates

Rainey 2012 Rainey 2012

4% vs 8%

adjacent-level disease across 13 randomized trials of replacement versus fusion

Meta-analysis Patel 2026

10What the studies show

Approach through the abdomen: injury to a large blood vessel in about 2 in 100 Ahn 2024

Risks, and what recovery looks like

Risks

In men, retrograde ejaculation in up to 1 in 10; usually temporary, sometimes not Lindley 2012

Implant settling or shifting, mostly in the first year; a later fusion is possible if the level stays painful

The usual risks of any spine surgery: infection, blood clot, nerve irritation

Recovery, typically

Walking the day of surgery; home in one to two nights

No brace; no waiting for bone to heal

Desk work in two to four weeks; driving when off strong pain medicine

Lifting limits for about six weeks, then physical therapy toward full activity by three months

Ahn 2024 · Lindley 2012

11Your decision

Age 18 to 60, one level between L3 and S1, an FDA-approved disc. Aetna, Cigna and Carelon all require it; Original Medicare does not cover it after 60 Aetna 2026 Cigna 2026 Carelon 2026 CMS 2007

What it takes to get it approved

Six consecutive months of documented nonsurgical care: medication and supervised exercise or physical therapy, with dates; Aetna wants at least three months of in-person therapy within the past year

Recent imaging: standing and bending X-rays and an MRI, within six months for Aetna, showing one worn disc and no stenosis, slip over 3 mm, pars defect or scoliosis

A bone-density scan with a T-score better than minus 1.0

Pain and function scores in the chart: pain at least 5 out of 10 for Aetna, a disability score, and what you can no longer do

Health optimised: HbA1c under 8% if diabetic; depression, anxiety and substance use treated; nicotine-free strongly recommended. Horizon reviews these requests through TurningPoint Horizon 2020

Aetna 2026 · Cigna 2026 · Carelon 2026 · CMS 2007 · +1

12Your decision

Confirm you are a candidate: a recent MRI, standing and bending X-rays, and sometimes a CT or bone-density scan

Next steps, and the question of insurance

Finish the nonsurgical trial: six documented months of therapy, medication and, when appropriate, injections

Check coverage early. Most commercial plans cover a single-level replacement when the checklist on the previous slide is met; Original Medicare does not cover it after age 60 CMS 2007

Decide together: replacement, fusion, or more time without surgery. Our team walks you through the authorization and the schedule

CMS 2007

13Your decision

The studies behind this talk

1.Blumenthal S, McAfee PC, Guyer RD, Hochschuler SH, Geisler FH, Holt RT. A prospective, randomized, multicenter Food and Drug Administration investigational device exemptions study of lumbar total disc replacement with the CHARITE artificial disc versus lumbar fusion: part I: evaluation of clinical outcomes. Spine (Phila Pa 1976). 2005;30(14):1565-75; discussion E387-91.

2.Guyer RD, McAfee PC, Banco RJ, Bitan FD, Cappuccino A, Geisler FH. Prospective, randomized, multicenter Food and Drug Administration investigational device exemption study of lumbar total disc replacement with the CHARITE artificial disc versus lumbar fusion: five-year follow-up. Spine J. 2009;9(5):374-86.

3.Zigler J, Delamarter R, Spivak JM, Linovitz RJ, Danielson GO 3rd, Haider TT. Results of the prospective, randomized, multicenter Food and Drug Administration investigational device exemption study of the ProDisc-L total disc replacement versus circumferential fusion for the treatment of 1-level degenerative disc disease. Spine (Phila Pa 1976). 2007;32(11):1155-62; discussion 1163.

4.Zigler JE, Delamarter RB. Five-year results of the prospective, randomized, multicenter, Food and Drug Administration investigational device exemption study of the ProDisc-L total disc replacement versus circumferential arthrodesis for the treatment of single-level degenerative disc disease. J Neurosurg Spine. 2012;17(6):493-501.

5.Garcia R Jr, Yue JJ, Blumenthal S, Coric D, Patel VV, Leary SP. Lumbar Total Disc Replacement for Discogenic Low Back Pain: Two-year Outcomes of the activL Multicenter Randomized Controlled IDE Clinical Trial. Spine (Phila Pa 1976). 2015;40(24):1873-81.

6.Furunes H, Storheim K, Brox JI, Johnsen LG, Skouen JS, Franssen E. Total disc replacement versus multidisciplinary rehabilitation in patients with chronic low back pain and degenerative discs: 8-year follow-up of a randomized controlled multicenter trial. Spine J. 2017;17(10):1480-1488.

7.Furunes H, Hellum C, Espeland A, Brox JI, Småstuen MC, Berg L. Adjacent Disc Degeneration After Lumbar Total Disc Replacement or Nonoperative Treatment: A Randomized Study with 8-year Follow-up. Spine (Phila Pa 1976). 2018;43(24):1695-1703.

8.Lemaire JP, Carrier H, Sariali el-H, Skalli W, Lavaste F. Clinical and radiological outcomes with the Charité artificial disc: a 10-year minimum follow-up. J Spinal Disord Tech. 2005;18(4):353-9.

9.David T. Long-term results of one-level lumbar arthroplasty: minimum 10-year follow-up of the CHARITE artificial disc in 106 patients. Spine (Phila Pa 1976). 2007;32(6):661-6.

10.Park SJ, Lee CS, Chung SS, Lee KH, Kim WS, Lee JY. Long-Term Outcomes Following Lumbar Total Disc Replacement Using ProDisc-II: Average 10-Year Follow-Up at a Single Institute. Spine (Phila Pa 1976). 2016;41(11):971-977.

11.Laugesen LA, Paulsen RT, Carreon L, Ernst C, Andersen MØ. Patient-reported Outcomes and Revision Rates at a Mean Follow-up of 10 Years After Lumbar Total Disc Replacement. Spine (Phila Pa 1976). 2017;42(21):1657-1663.

12.Lu S, Sun S, Kong C, Sun W, Hu H, Wang Q. Long-term clinical results following Charite III lumbar total disc replacement. Spine J. 2018;18(6):917-925.

13.Guyer RD, Blumenthal SL, Shellock JL, Zigler JE, Ohnmeiss DD. Lumbar Total Disk Replacement Device Removals and Revisions Performed During a 20-Year Experience with 2141 Patients. Spine (Phila Pa 1976). 2024;49(10):671-676.

14.Zigler JE, Glenn J, Delamarter RB. Five-year adjacent-level degenerative changes in patients with single-level disease treated using lumbar total disc replacement with ProDisc-L versus circumferential fusion. J Neurosurg Spine. 2012;17(6):504-11.

15.Rainey S, Blumenthal SL, Zigler JE, Guyer RD, Ohnmeiss DD. Analysis of adjacent segment reoperation after lumbar total disc replacement. Int J Spine Surg. 2012;6:140-4.

16.Harrop JS, Youssef JA, Maltenfort M, Vorwald P, Jabbour P, Bono CM. Lumbar adjacent segment degeneration and disease after arthrodesis and total disc arthroplasty. Spine (Phila Pa 1976). 2008;33(15):1701-7.

17.Zigler J, Gornet MF, Ferko N, Cameron C, Schranck FW, Patel L. Comparison of Lumbar Total Disc Replacement With Surgical Spinal Fusion for the Treatment of Single-Level Degenerative Disc Disease: A Meta-Analysis of 5-Year Outcomes From Randomized Controlled Trials. Global Spine J. 2018;8(4):413-423.

18.Patel S, Mendonca A, Nischal SA, Kale KM, Hines K, Heller J. Total disc replacement versus lumbar interbody fusion for degenerative disc disease: a meta-analysis of randomized controlled trials. Neurosurg Focus. 2026;61(1):E11.

19.Wen DJ, Tavakoli J, Tipper JL. Lumbar Total Disc Replacements for Degenerative Disc Disease: A Systematic Review of Outcomes With a Minimum of 5 years Follow-Up. Global Spine J. 2024;14(6):1827-1837.

20.Kurtz SM, van Ooij A, Ross R, de Waal Malefijt J, Peloza J, Ciccarelli L. Polyethylene wear and rim fracture in total disc arthroplasty. Spine J. 2007;7(1):12-21.

21.Punt IM, Austen S, Cleutjens JP, Kurtz SM, ten Broeke RH, van Rhijn LW. Are periprosthetic tissue reactions observed after revision of total disc replacement comparable to the reactions observed after total hip or knee revision surgery?. Spine (Phila Pa 1976). 2012;37(2):150-9.

22.Lindley EM, McBeth ZL, Henry SE, Cooley R, Burger EL, Cain CM. Retrograde ejaculation after anterior lumbar spine surgery. Spine (Phila Pa 1976). 2012;37(20):1785-9.

23.Ahn J, Courtois EC, Ohnmeiss DD. Impact of Age on the Occurrence of Vascular Complications in Patients Undergoing Anterior Lumbar Approach Surgery. Spine (Phila Pa 1976). 2024;49(20):E327-E330.

24.Evans JT, Walker RW, Evans JP, Blom AW, Sayers A, Whitehouse MR. How long does a knee replacement last? A systematic review and meta-analysis of case series and national registry reports with more than 15 years of follow-up. Lancet. 2019;393(10172):655-663.

25.Sharkey PF, Lichstein PM, Shen C, Tokarski AT, Parvizi J. Why are total knee arthroplasties failing today--has anything changed after 10 years?. J Arthroplasty. 2014;29(9):1774-8.

26.CMS. National Coverage Determination 150.10: Lumbar Artificial Disc Replacement (LADR). Medicare Coverage Database. 2007.

27.Sköld C, Tropp H, Berg S. Five-year follow-up of total disc replacement compared to fusion: a randomized controlled trial. Eur Spine J. 2013;22(10):2288-95.

28.Berg S, Tullberg T, Branth B, Olerud C, Tropp H. Total disc replacement compared to lumbar fusion: a randomised controlled trial with 2-year follow-up. Eur Spine J. 2009;18(10):1512-9.

29.Siepe CJ, Wiechert K, Khattab MF, Korge A, Mayer HM. Total lumbar disc replacement in athletes: clinical results, return to sport and athletic performance. Eur Spine J. 2007;16(7):1001-13.

30.Radcliff K, Zigler J, Braxton E, Buttermann G, Coric D, Derman P. Final Long-Term Reporting from a Randomized Controlled IDE Trial for Lumbar Artificial Discs in Single-Level Degenerative Disc Disease: 7-Year Results. Int J Spine Surg. 2021;15(4):612-632.

31.Upfill-Brown A, Policht J, Sperry BP, Ghosh D, Shah AA, Sheppard WL, et al.. National trends in the utilization of lumbar disc replacement for lumbar degenerative disc disease over a 10-year period, 2010 to 2019. J Spine Surg. 2022;8(3):343-352.

32.Khalid SI, Deysher D, Thompson K, Ostrov PB, Hossa J, Mirpuri P, et al.. Outcomes of patients undergoing single-level arthroplasty versus anterior lumbar interbody fusion. Acta Neurochir (Wien). 2023;165(7):1915-1921.

33.Vanaclocha V, Jordá-Gómez P, Saiz-Sapena N, Martínez-Leon J, Vanaclocha L. Long-term outcomes of total lumbar disc prosthesis: Sustained pain relief. N Am Spine Soc J. 2025;24:100813.

34.Carlson J, Giblin M. Long-Term Results of Charité Lumbar Disc Replacement: A 17-Year Follow-Up in a Workers' Compensation Cohort. Int J Spine Surg. 2022;16(5):831-836.

35.Fritzell P, Berg S, Borgström F, Tullberg T, Tropp H. Cost effectiveness of disc prosthesis versus lumbar fusion in patients with chronic low back pain: randomized controlled trial with 2-year follow-up. Eur Spine J. 2011;20(7):1001-11.

36.Guyer RD, Pettine K, Roh JS, Dimmig TA, Coric D, McAfee PC, et al.. Five-Year Follow-Up of a Prospective, Randomized Trial Comparing Two Lumbar Total Disc Replacements. Spine (Phila Pa 1976). 2016;41(1):3-8.

37.Narendran N, Mikhail CM, Nilssen PK, Tuchman A, Skaggs DL. Lumbar Total Disc Replacement Leads to Increased Subsequent Facet Injections Compared to Anterolateral Lumbar Interbody Fusions. Global Spine J. 2025;15(3):1733-1742.

38.Shukla GG, Wu A, Matur AV, McGrath K, Khalid S, Garner R, et al.. Lumbar Arthroplasty Is Associated With a Lower Incidence of Adjacent Segment Disease Compared With ALIF: A Propensity-matched Analysis. Spine (Phila Pa 1976). 2023;48(14):978-983.

39.FDA. Summary of Safety and Effectiveness Data: prodisc L Total Disc Replacement (PMA P050010 and two-level supplement S020). US Food and Drug Administration. 2020.

40.FDA. Summary of Safety and Effectiveness Data: activL Artificial Disc (PMA P120024). US Food and Drug Administration. 2015.

41.Aetna. Clinical Policy Bulletin 0591: Intervertebral Disc Prostheses. Aetna Clinical Policy Bulletins. 2026.

42.Cigna, EviCore. CMM-610: Lumbar Total Disc Arthroplasty, V1.0.2026. Cigna Medical Coverage Policies: Musculoskeletal (EviCore). 2026.

43.Carelon. Clinical Appropriateness Guidelines: Spine Surgery, Lumbar Disc Arthroplasty section (MSK03-0926.1). Carelon Medical Benefits Management. 2026.

44.UnitedHealthcare. Medical Policy 2026T0437PP: Total Artificial Disc Replacement for the Spine. UnitedHealthcare. 2026.

45.Horizon. Medical Policy (Surgery) #051: Artificial Intervertebral Disc, Lumbar Spine. Horizon Blue Cross Blue Shield of New Jersey. 2020.

Full reference list with DOI and PubMed links is available in the online references view.

talks.aaronweymd.com/decks/lumbar-disc-replacement

14Your decision

Take this talk home

Scan for these slides, the plain-language notes, and every study with a link. A PowerPoint version is at talks.aaronweymd.com/downloads/lumbar-disc-replacement-patient-talk.pptx