WRIST SUBLUXATION: THE CARPAL TUNNEL & ROTATION ANCHOR

Why "Carpal Tunnel Syndrome" is Often a Bone Problem, Not a Soft Tissue Problem

By Dr. James Fraser | Doctor of Chiropractic D.C. | Spine Spot Chiropractic | Basalt, CO

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The Wrist is the most complex articulation in the upper extremity. It is not a simple hinge; it is a Dual-Pivot Systemcomposed of the Distal Radius and Ulna (forearm bones) interacting with the Proximal Carpal Row (Scaphoid, Lunate, Triquetrum, Pisiform).

This mechanical gateway must accommodate massive ranges of motion—flexion, extension, and rotation (pronation/supination)—while simultaneously protecting the Median and Ulnar Nerves.

When the Wrist subluxates, it is usually a failure of the Lunate Bone (slipping forward into the Carpal Tunnel) or the Distal Ulna (slipping backward). The result is a mechanical collapse of the tunnel.

Medical orthodoxy often treats this with braces, cortisone shots, or surgery to cut the ligament. At Spine Spot Chiropractic, we view this as a Structural Derangement. If the roof of the tunnel (ligament) is tight because the floor (bone) has collapsed, cutting the roof is a bandage. We fix the floor.

THE ANATOMICAL ANCHOR: THE TUNNEL ARCHITECTS

Biomechanics of the Wrist Complex

The wrist relies on the precise alignment of the "Keystone" bones.

• The Anterior Lunate: The Lunate bone sits directly in the center of the wrist. It forms the floor of the Carpal Tunnel. Due to falls or repetitive strain (typing, pushups), the Lunate often subluxates Anteriorly (palm side). This pushes the bone into the tunnel, crushing the nerve from below.
• The Distal Ulna: The Ulna (pinky side bone) acts as the pivot for rotation. If it subluxates Posteriorly (sticks up on the back of the wrist), it blocks supination (turning the palm up). This is the sharp pain you feel when trying to do a bicep curl or turn a doorknob.
• Fixation vs. Pain: A Wrist Subluxation is strictly mechanical.
• The "Block": Patients often feel a physical block when trying to bend the wrist back (extension).
• The "Click": A palpable click or grind during rotation indicates the Ulnar head is grinding against the Triquetrum bone.

THE NEUROLOGICAL BLAST RADIUS

The Median Nerve & The Guyon's Canal

The wrist is a high-traffic zone for nerves. Even a millimeter of bone displacement causes significant neural compression.

The Median Nerve (Carpal Tunnel)

• The Connection: Runs deep to the Flexor Retinaculum (transverse ligament).
• The Dysfunction: Anterior Lunate Compression.
• The Result: Numbness in the Thumb, Index, and Middle Finger. Crucially, the palm sensation is often spared (because the palmar branch exits before the tunnel). If the numbness wakes you up at night, the Lunate is likely pushing on the nerve while the wrist is flexed in sleep.

The Ulnar Nerve (Guyon's Canal)

• The Connection: Runs through a separate tunnel formed by the Pisiform and Hamate bones.
• The Dysfunction: Cyclist's Palsy / Handlebar Palsy.
• The Result: Pinky Finger Numbness. Direct pressure on the Pisiform bone (from handlebars or desk edges) jams it into the nerve. This causes weakness in spreading the fingers (interossei muscles) and a "claw hand" appearance in severe cases.

The Radial Sensory Nerve

• The Connection: Runs superficially over the "Snuff Box" (thumb base).
• The Dysfunction: "Handcuff Neuropathy."
• The Result: Back of Hand Numbness. Tight watches, bracelets, or swelling from a Scaphoid subluxation can compress this nerve, causing tingling on the back of the thumb and hand.

THE ORGAN SYSTEM CONNECTION

Visceral Ramifications of Wrist Displacement

While the wrist doesn't house organs, it is a primary indicator of systemic joint health and kinetic chain failure.

• The Elbow Connection (Tennis Elbow): The wrist extensors anchor at the elbow. If the wrist is fixated and cannot extend, the muscles are overworked. Lateral Epicondylitis (Tennis Elbow) is often just a symptom of a locked wrist. Treating the elbow without clearing the wrist fixation usually fails.
• Grip Strength (Mortality Marker): Wrist stability dictates grip strength. Clinical studies show that reduced grip strength is a biomarker for accelerated aging and cardiovascular risk. A subluxated wrist functionally weakens your grip, deconditioning your body.
• The Neck-Wrist "Double Crush": Nerves are often compressed in two places. A pinched nerve in the neck (C6) makes the nerve swollen and vulnerable at the wrist. We call this "Double Crush Syndrome." We must check the neck to fully resolve the wrist.

THE SYMPTOM MATRIX

"How Does It Feel?"

A Wrist fixation feels like a "jammed door."

The Hallmark: The "Push-Up" Pain Sharp pain in the back of the wrist when trying to bear weight on a flat hand (e.g., Push-ups or Yoga).

Associated Symptoms:

• "Flick Sign": Waking up and needing to flick the wrist to restore feeling.
• Doorknob Pain: Sharp pain on the pinky side of the wrist when twisting.
• Weak Pinch: Dropping paper or inability to hold a key tightly.
• Wrist Crepitus: Grinding or popping sounds with movement.
• Forearm Ache: Deep aching in the muscles of the forearm that massage doesn't fix.
• "Bible Cyst": A Ganglion Cyst forming on the back of the wrist due to joint capsule irritation.

THE SPINE SPOT DIFFERENCE

Diagnosis & Correction: A Master-Craftsman Approach

The wrist is delicate and comprises eight small, shifting bones. Generic "traction" or shaking the hand is useless for a specific bony misalignment. At Spine Spot, Dr. James Fraser utilizes a mastery of multiple chiropractic techniques to analyze the individual carpal bones and correct the specific architecture of your wrist.

PHASE 1: THE FORENSIC AUDIT

Before we adjust your wrist, we must differentiate between a nerve entrapment and a bone alignment issue using a comprehensive Neuromusculoskeletal Examination.

• Orthopedic Assessment: We perform Phalen’s Test (reverse prayer) and Tinel’s Sign (percussion) to reproduce nerve symptoms. We use Finkelstein’s Test to rule out tendonitis (De Quervain’s) versus Scaphoid fixation.
• Grip Strength Dynamometry: We measure your grip strength in pounds. A significant deficit in one hand often points to a loss of the carpal arch integrity, specifically the Capitate bone.
• Static & Motion Palpation: Dr. Fraser meticulously palpates the individual carpal bones.
• Lunate Check: We feel for a hard bony prominence on the palmar side (the "floor" rising up).
• Scaphoid Check: We feel for tenderness in the "Snuff Box."
• Distal Ulna Check: We check for excessive mobility (piano key sign) or posterior fixation blocking rotation.

PHASE 2: THE PRECISION ADJUSTMENT

Dr. Fraser is proficient in four distinct, high-level correction protocols for the Wrist. Depending on the fragility of the joint, the presence of arthritis, and the direction of the misalignment, we will utilize one of the following:

The Gonstead Correction (The Carpal Lift)

• Best For: Anterior Lunate (Carpal Tunnel) and Dropped Scaphoid.
• The Setup: Seated (Extremity Board). The patient's forearm is supported to isolate the wrist.
• The Contact:
• For Anterior Lunate: Dr. Fraser uses a specific double-thumb contact on the palmar aspect of the Lunate.
• For Posterior Distal Ulna: We use a Pisiform contact on the Ulnar head.
• The Vector:
• Lunate: We extend the wrist to expose the bone, then drive A-P (Anterior to Posterior) to push it back into the floor of the tunnel.
• Scaphoid: We use a "Whip" motion to lift the Scaphoid I-S (Inferior to Superior) and distract the joint.
• The Release: The wrist adjustment is sharp and quick. There is often a loud, crisp "crack" as the vacuum seal breaks. Patients typically report an immediate increase in range of motion and a "lightness" in the fingers.

Diversified Technique (The Traction Release)

• Best For: General wrist stiffness, jammed metacarpals, and "waking up" the hand.
• The Setup: Seated, facing the doctor. Dr. Fraser grasps the patient's hand with a specific "handshake" grip.
• The Contact: Thumbs are placed on the dorsal aspect of the wrist (Radius/Ulna) while fingers secure the carpal rows.
• The Vector: A high-velocity, low-amplitude thrust delivered with Long Axis Traction. We distract the joint to separate the carpal rows and apply a quick impulse to realign the Capitate and Lunate simultaneously.
• The Release: A satisfying release that decompresses the entire wrist complex, instantly improving range of motion for typists and manual laborers.

Thompson Terminal Point (The Extremity Drop)

• Best For: Acute wrist pain, swelling, or patients who cannot tolerate the "snap" of a manual adjustment.
• The Setup: The patient's hand is placed on a specialized Extremity Drop Piece or "Speeder Board."
• The Contact: A specific contact on the prominent carpal bone (e.g., the Pisiform or Lunate).
• The Vector: Dr. Fraser applies a sharp thrust. The drop piece falls away, utilizing Newton’s laws of inertia to speed up the bone and set it back into place without heavy pressure.
• The Result: A vibration-based correction that is incredibly gentle yet structurally effective for reducing the "lump" in the wrist.

Activator Methods (The Instrument Precision)

• Best For: Isolating tiny carpal bones (like the Trapezium), treating arthritis, or highly sensitive patients.
• The Setup: Seated, utilizing isolation tests (thumb flexion/extension) to verify the exact bone involved.
• The Contact: The Activator instrument is placed directly on the individual carpal bone or metacarpal head.
• The Vector: The instrument delivers a lightning-fast (milliseconds) impulse. It is faster than the body's muscle reflex can guard against. The line of drive is strictly calculated to move the bone back into the arch (e.g., A-P line of drive for an Anterior Lunate).
• The Result: No "cracking." Just a precise neurological reset that communicates directly with the mechanoreceptors to restore grip strength.

PHASE 3: ADJUNCTIVE THERAPIES

• Class IV Cold Laser Therapy: We target the Carpal Tunnel (Transverse Ligament) to reduce the swelling that is crushing the nerve.
• Kinesiology Taping: We may tape the wrist in a specific vector to support the Lunate bone and prevent it from slipping forward again while the ligaments heal.

OPEN THE TUNNEL

Regain Your Range

If you cannot do a push-up without pain, if your hand goes numb at night, or if you have a "click" in your wrist that won't go away, the issue is likely a mechanical subluxation. The floor of the tunnel has collapsed.

Do not let a bone problem turn into a surgical problem.

Restore the alignment. Restore the dexterity.

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Spine Spot Chiropractic – Your Chiropractor in Basalt - Dr. James Fraser | 341 Market St, Basalt, CO 81621 | Call/Text: (970) 924-1015 | Schedule Online or Request an appointment