Degenerative Disc Disease Treatment: Physiotherapy Protocol

What Is Degenerative Disc Disease?

Degenerative disc disease (DDD) describes the age-related changes that occur in the intervertebral discs — the soft cushions between vertebral bodies. Despite the term 'disease', DDD is a normal biological process that begins as early as the second decade of life and affects virtually everyone to varying degrees by the sixth decade.

Structural Changes in DDD

| Change | Clinical Consequence | |---|---| | Loss of disc water content | Reduced shock absorption, increased rigidity | | Disc height reduction | Foraminal narrowing, nerve root compromise potential | | Annular tears | Pain from disc innervation, nucleus pulposus extrusion | | Osteophyte formation | Spinal canal or foraminal narrowing | | Facet joint arthritis | Secondary facet pain, further instability | | Segmental instability | Abnormal motion causing pain and muscle guarding |

Why DDD Causes Pain

Disc degeneration itself is often painless. Pain arises from:

1. Disc innervation — the outer annulus fibrosus is innervated; tears produce localised deep aching
2. Inflammatory mediators — nucleus pulposus contains inflammatory chemicals (PLA2, TNF-α) that irritate adjacent nerve roots
3. Segmental instability — degenerated discs allow abnormal intersegmental motion, causing microtrauma
4. Facet joint loading — disc height loss shifts load to the posterior facet joints, causing osteoarthritic pain
5. Neural compression — osteophytes or disc bulges compress nerve roots, causing radiculopathy

Physiotherapy Protocol for DDD

Phase 1: Acute Pain Management (Weeks 1 to 2)

Goals: Reduce pain, restore functional movement

• Thermal modalities: heat or ice for pain relief (patient preference)
• IFT or TENS electrotherapy for pain modulation
• Gentle neural mobilisation — sciatic nerve glides, femoral nerve glides
• Positional relief teaching — identifying pain-relieving postures
• Activity modification — avoid heavy lifting and prolonged sitting

Phase 2: Stabilisation (Weeks 3 to 6)

Goals: Restore core control, reduce painful intersegmental movement

Core Stabilisation Programme:

• Transversus abdominis activation (abdominal draw-in): 10 × 10-second holds
• Multifidus activation: prone lying with simultaneous arm and leg lift
• Bridge exercise: 3 × 15 repetitions
• Dead bug: 3 × 10 per side
• Modified plank: progressed from knees to full position

Phase 3: Progressive Loading (Weeks 7 to 12)

Goals: Increase functional capacity, load tolerance, and return to activity

• Progressive resistance training: squats, deadlifts (low load, perfect form)
• Cardiovascular training: cycling, swimming, walking programme
• Sport-specific training as relevant
• Postural retraining for occupational activities

Manual Therapy Interventions

• Spinal joint mobilisation at adjacent healthy segments
• Soft tissue massage for paraspinal muscles
• Dry needling for multifidus and erector spinae trigger points
• Traction (intermittent) for foraminal stenosis symptoms

Lifestyle Modifications for DDD

| Modification | Rationale | |---|---| | Ergonomic workstation | Reduces prolonged loaded lumbar flexion | | Weight management | Reduces axial disc load | | Smoking cessation | Nicotine impairs disc nutrition via vertebral end plate | | Regular movement breaks | Prevents sustained load causing disc pressurisation | | Swimming or cycling | Maintains fitness without high axial disc loads |

When to Consider Surgery

Surgical referral is appropriate when:

• Conservative management (including structured physiotherapy) has been maintained consistently for 6 to 12 months without adequate improvement
• Neurological deficits are progressive
• Quality of life is severely and objectively impaired

Surgical options include disc arthroplasty (artificial disc replacement) and spinal fusion. Both have modest long-term outcomes compared to conservative management.

For related conditions, see spinal stenosis exercises and L4-L5 disc prolapse.

References

• Luoma K et al. Low back pain in relation to lumbar disc degeneration. Spine. 2000.
• Richardson C et al. Therapeutic Exercise for Lumbopelvic Stabilization. Churchill Livingstone. 2004.
• Brox JI et al. Randomised clinical trial of lumbar instrumented fusion and cognitive intervention and exercises in patients with chronic low back pain and disc degeneration. Spine. 2006.