Spinal Fusion Surgery: Indications, Techniques, and Long-Term Outcomes in the Treatment of Degenerative Spine Conditions

¹Mobeen Ali, ²Mohib Ali, ³Hadi Raza, ⁴Ali Raza, ⁵Dr Muhammad Azeem Akhund, ⁶Dr kishore kumar Khatri

¹PIMS 

²PIMS

³PIMS

⁴UHS Lahore

⁵Associate Professor Department of Orthopeadics Surgery and Traumatology PUMHS W Nawabshah

⁶Associate Professor Department of Orthopeadics Surgery and Traumatology PUMHS W Nawabshah 

 Vol 15-01

Submission: 1st January 2025, Acceptance: 6th September 2025, Publication: 30th September2025

Abstract

Background: Degenerative spine disorders consist of DDD, Spondylosis, Spondylolisthesis and spinal stenosis are common contributors to chronic pain, neurological impairments and disability. The main treatment for such issues is axial spinal fusion surgery, particularly in circumstances when any other management methods do not help. The goal of the surgery is to fixate the destabilized segment of the spine, relieve the pain and enhance patients’ function.

Aim: This paper will identify indications for spinal fusion, review different techniques for spinal fusion, and analyse short and long term results to guide best practice in management of degenerative spinal diseases in clinical practice. Method: PubMed, Cochrane Library, Embase, and MEDLINE were used as databases in carrying out this systematic review. The criteria included studies of adult patient’s with certain spine pathology who underwent spinal fusion using techniques including, posterior lumbar interbody fusion (PLIF), transforaminal lumbar interbody fusion (TLIF), anterior cervical discectomy and fusion (ACDF) and minimally invasive lumbar fusion (MIS–TLIF). Outcome assessment parameters involved change in pain scores, functional gain, fusion success, complication profile, and patient satisfaction.

Results: Patients with progressive nerve root or spinal canal compromise, painful deformity, or those who have failed to respond to nonoperative management are considered candidates for spinal fusion. Different methods, such as PLIF, TLIF, ACDF, and minimally invasive TLIF, provide different prognosis (70-90%) respectively and complication, including adjacent segment diseases and hardware malfunction. Short-term benefits include pain relief and functional status improvement, whereas long-term effects reveal possible disadvantageous consequences including ASD and pseudarthrosis influencing the frequency of revision operations.

Conclusion: Patient type, the level of spinal degeneration and the specific kind of surgical approach has tremendous impact on the outcome of spinal fusion surgery. Nevertheless, fusion has substantial advantages accompanied by the risk which should be compared with possible results. Patient’s evaluation and postoperative care provision must, therefore, be personalized to both give a good result and meet the patient’s expectation.

Keywords: Degenerative spine disorders, Axial spinal fusion, Spinal surgery, Posterior lumbar interbody fusion

(PLIF), Transforaminal lumbar interbody fusion (TLIF).