Our 48 spinal joints (facet joints) are the key master architects in a suspension bridge, that links twenty-four bone segments into a single, dynamic highway. Each joint acts as a specialised shock absorber, lined with smooth cartilage that absorbs the violent tremors of every leap, step, and stride.
Locked together by a tight web of biological cables, they balance absolute structural stability with effortless elasticity. They are the pivot points of our motion, twisting and bending on command while guarding the fragile spinal cord deep inside the spine. Without these silent, interlocking hinges, the body’s spinal architecture would instantly fracture and fall.
Major Causes of Facet Joint Pain
| Cause | How It Affects the Facet Joints |
|---|---|
| 🦴 Spinal Osteoarthritis | Cartilage deterioration can cause joint inflammation, stiffness and bone spurs. |
| 💿 Disc Degeneration | Loss of disc height can increase loading and pressure on the facet joints. |
| 💥 Acute Trauma | Falls, whiplash or sporting injuries can damage the joints or surrounding capsules. |
| 🔄 Repetitive Stress | Repeated twisting, backward bending and heavy lifting can irritate the joints. |
| 🪑 Poor Posture | Prolonged awkward positions may increase mechanical strain on the neck and lower back. |
| ⚖️ Body Weight & Lifestyle | Excess body weight increases spinal loading, while inactivity may reduce muscular support. |
| 🔥 Inflammatory Conditions | Conditions such as rheumatoid arthritis and axial spondyloarthritis can cause spinal joint inflammation. |
Facet joint pain is a common cause of neck and lower back discomfort because these small joints are constantly involved in supporting, stabilising and controlling spinal movement. Located at the back of the spine, between neighbouring vertebrae, facet joints guide movements such as bending, twisting and extending backwards.
Although protected by smooth cartilage and lubricated by synovial fluid, these joints have relatively thin cartilage compared with larger weight-bearing joints. Over time, repetitive loading, disc degeneration, injury and age-related changes can increase mechanical stress, potentially leading to inflammation, stiffness and pain.
Facet joint pain can develop in the neck, middle back or lower back. Symptoms vary depending on which joints are affected, the degree of irritation and the movements that place stress on the spine.
Common Symptoms of Lower Back Facet Joint Pain
| Symptom | What You May Experience |
|---|---|
| 🔴 Localised Lower Back Pain | A deep, dull ache on one or both sides of the lower back. |
| 🔄 Pain When Twisting | Discomfort when rotating the spine or turning suddenly. |
| ↩️ Pain When Bending Backwards | Increased pain when arching the back or standing upright after bending. |
| 🪑 Stiffness After Rest | Stiffness after sitting or lying down, particularly in the morning. |
| 🚶 Pain During Standing | Symptoms may worsen during prolonged standing or walking. |
| 🦵 Referred Pain | Pain may spread into the buttocks, hips, groin or thighs, usually without following a specific nerve pathway. |
| ⚡ Sudden Sharp Pain | A sharp catching sensation during certain spinal movements. |
| 💪 Muscle Tightness | Protective muscle tension or spasms around the affected joints. |
| 🌤️ Pain That Fluctuates | Symptoms may improve with gentle movement but worsen after increased activity. |
Symptoms of Neck Facet Joint Pain
| Symptom | What You May Experience |
|---|---|
| 🦴 Localised Neck Pain | Aching or tenderness on one or both sides of the neck. |
| 🔄 Restricted Neck Movement | Difficulty turning the head, particularly when looking over the shoulder. |
| 🤕 Headaches | Pain spreading from the upper neck towards the back or side of the head. |
| 💢 Shoulder Pain | Referred discomfort into the upper shoulders or shoulder blades. |
| ↩️ Pain Looking Upwards | Increased discomfort when extending or rotating the neck. |
| 🛏️ Morning Stiffness | Neck stiffness after sleeping or remaining in one position. |
Causes of Facet Joint Pain
What Happens during Facet Joint Degeneration?
Facet joints wear out over time. As our intervertebral discs gradually loose their ability to shock absorb over decades, there is more loading of our spinal joints.
🦴 Common Symptoms of Sacroiliac (SI) Joint Pain
Sacroiliac joint pain can cause discomfort around the lower back, buttocks and pelvis. Symptoms often become worse during everyday movements, particularly when changing position or placing weight through one leg.
| 🔍 Symptom | 📋 Description |
| 🍑 Buttock Pain | Pain usually felt on one side of the buttocks. |
| 🦴 Tailbone Area | Pain beside the sacrum or tailbone. |
| 🪑 Standing Up | Pain when rising from a chair. |
| 🪜 Climbing Stairs | Discomfort when stepping upwards. |
| 🛏️ Turning in Bed | Pain when rolling over at night. |
| 🚗 Getting Out of a Car | Pain when twisting or standing up. |
| 🦵 Standing on One Leg | Pain when balancing on one leg. |
| 🧍 Prolonged Standing | Pain after standing for long periods. |
| 🚶 Walking | Discomfort during or after walking. |
| ⚡ Lower Back Stiffness | Tightness or restricted movement. |
📍 Where Else Can Pain Spread?
| 🦵 Back of Thigh | Pain extending into the upper leg. |
| 🔹 Groin | Discomfort around the front of the pelvis. |
| 🦴 Outer Hip | Pain spreading towards the side of the hip. |
💡 Important: These symptoms can also occur with lumbar disc problems, facet joint pain and hip conditions. A thorough clinical assessment is important to identify the likely source of pain.
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Can SI Joint Dysfunction Cause Leg Pain?
Yes.
The SI joint can refer pain into the:
- Buttock
- Hamstring
- Groin
- Outer thigh
- Occasionally below the knee
However, unlike true sciatica, SI joint pain rarely follows the exact course of a spinal nerve and is less likely to cause numbness, tingling, muscle weakness, or altered reflexes.
Sacroiliac Joint Pain vs Sciatica
| Sacroiliac Joint Dysfunction | Sciatica |
|---|---|
| Pain usually centred over one buttock | Pain starts in lower back or buttock |
| Pain worse standing from sitting | Pain often worse sitting for long periods |
| Usually no numbness | Numbness common |
| Usually no muscle weakness | Weakness may occur |
| Normal reflexes | Reflexes may be reduced |
| Pain often eased by changing position | Leg pain often follows a nerve distribution |
| Usually no neurological symptoms | Neurological signs may be present |
