J Korean Neurosurg Soc.  2015 Nov;58(5):401-411. 10.3340/jkns.2015.58.5.401.

Total Disc Replacement in Lumbar Degenerative Disc Diseases

Affiliations
  • 1Department of Neurosurgery, The Catholic University of Korea College of Medicine, Seoul, Korea. ckpmd@catholic.ac.kr
  • 2Good Doctor Teun Teun Hospital, Anyang, Korea.

Abstract

More than 10 years have passed since lumbar total disc replacement (LTDR) was introduced for the first time to the world market for the surgical management of lumbar degenerative disc disease (DDD). It seems like the right time to sum up the relevant results in order to understand where LTDR stands on now, and is heading forward to. The pathogenesis of DDD has been currently settled, but diagnosis and managements are still controversial. Fusion is recognized as golden standard of surgical managements but has various kinds of shortcomings. Lately, LTDR has been expected to replace fusion surgery. A great deal of LTDR reports has come out. Among them, more than 5-year follow-up prospective randomized controlled studies including USA IDE trials were expected to elucidate whether for LTDR to have therapeutic benefit compared to fusion. The results of these studies revealed that LTDR was not inferior to fusion. Most of clinical studies dealing with LTDR revealed that there was no strong evidence for preventive effect of LTDR against symptomatic degenerative changes of adjacent segment disease. LTDR does not have shortcomings associated with fusion. However, it has a potentiality of the new complications to occur, which surgeons have never experienced in fusion surgeries. Consequently, longer follow-up should be necessary as yet to confirm the maintenance of improved surgical outcome and to observe any very late complications. LTDR still may get a chance to establish itself as a substitute of fusion both nominally and virtually if it eases the concerns listed above.

Keyword

Degenerative disc disease; Total disc displacement; Lumbar spine; Outcome; Complications

MeSH Terms

Diagnosis
Dichlorodiphenyldichloroethane
Follow-Up Studies
Head
Prospective Studies
Total Disc Replacement*
Dichlorodiphenyldichloroethane

Figure

  • Fig. 1 Photograph showing a representative lumbar artificial disc of semi-constrained design with translation, Charite.

  • Fig. 2 Photograph showing a representative lumbar artificial disc of semi-constrained design without translation, ProDisc-L, and general composition of artificial disc. A : upper plate, made up with metal and alloys, B : core, made up with UHMWPE or ceramics, C : lower plate, D : keel for anchorage. UHMWPE : ultra-high molecular weight polyethylene.

  • Fig. 3 Diagram showing an approach for TDR. In TDR for L5-S1 : Anterior approach via right retroperitoneal route is preferred, while in anterior approach for TDR levels above L5-S1, left retroperitoneal route is preferred.

  • Fig. 4 Diagram showing hypogastric plexus which is usually located in the left anterior part of the promontory and one of the reasons why right retroperitoneal route is preferred in anterior approach for L5-S1 TDR. A : superior hypogastric plexus, B : left iliac artery and vein, C : pre-sacral artery. TDR : total disc replacement.

  • Fig. 5 Image of CT angiography showing vascular structures in the anterior part of lumbar spine, and the access (open arrow) between the large vessels and psoas muscle in anterolateral (oblique) approach for L4-5 TDR. TDR : total disc replacement.


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