Oblique lumbar lateral interbody fusion

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Oblique Lateral Lumbar Interbody Fusion (OLLIF) is a minimally-invasive procedure to achieve spinal fusion of the lumbar vertebrae. Unlike other spinal fusions it can often be performed as an outpatient surgery.

OLLIF procedure finished hardware placement

Medical uses

OLLIF is done in the lumbar region of the spine to treat a variety of back conditions. Most commonly it is used to treat degenerative disc disease and spinal disc herniation but it can be used to treat a large range of degenerative spinal conditions. OLLIF is currently only used for fusions between the L1-5 and S1 vertebrae.[1]

Procedure

Unlike in open spinal fusion surgery, such as a transforaminal lumbar inter body fusion, the surgeon does not have to cut through muscle and connective tissue to reach the spine. In OLLIF spinal fusion is performed through a single incision around 15mm in size. An access portal is fed through the incision and pushed onto the disk. The disk can then be removed through the access portal and be replaced by a PEEK spacer.[2] Like many other spinal fusions, OLLIF is usually augmented by posterior pedicle screw fixation, which can also be done minimally invasively.[3]

Economics

Standard conversion factors were used and values reported based on the levels (1-4) addressed at surgery. One level surgery time (OLLIF 62.9 vs. TLIF 134.9 minutes) and surgical expense (OLLIF $5,253 vs. TLIF $11,264) were reduced in the OLLIF population. Inpatient costs (OLLIF $5,712 vs. TLIF $9,271) and length of stay (LOS) were also reduced (OLLIF 2.6 vs. TLIF 4.2 days). Per case, reduced resource consumption suggests lower total hospital costs. Reduced surgical time and LOS can result in greater patient throughput per operating room and patient bed for OLLIF patients in hospitals that have resourced constrained environments.)[1]

The cost reductions and faster recovery times associated with the OLLIF procedure make it an appealing alternative to the traditional open fusions available for patient and insurance providers. The reduction in the use of these key hospital resources suggests that hospitals that are constrained by OR or hospital bed availability may be able to achieve greater throughput efficiency by increasing the overall percentage of patients receiving the OLLIF surgery.[1]

See also

References