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Presented By:
MD. MONSUR RAHMAN
MPT (Musculoskeletal Disorders)
MM UNIVERSITY, MULLANA, AMBALA
Carpal tunnel syndrome
Carpal tunnel
ď‚— The carpal tunnel is formed between the carpal
bones of the wrist and the transverse carpal
ligament.
ď‚— The ligament is an unyielding thick fibrous tissue
which does not allow for changes in volume
within the carpal tunnel.
Carpal tunnel syndrome
ď‚— Carpal tunnel syndrome(CTS) is a collection of
symptoms and signs that occurs following
entrapment of the median nerve within the carpal
tunnel.
ď‚— Usual symptoms include numbness, parasthesia
and pain in the median nerve distribution.
ď‚— This symptoms may or may not be accompanied by
objective changes in sensation and strength of
median-innervated structures in the hand.
Anatomy
The carpal tunnel is an
osteofibrous canal located in
the volar wrist. The boundaries
are
the carpal bones forming the
floor and the flexor
retinaculum(transverse carpal
ligament) forming the roof.
The retinaculum is about 3-4 cm wide and
inserts into the scaphoid tubersity and into the
pisiform(proximal carpal tunnel) and
subsequently into the trapezium and the hook
of the hammet(distal carpal tunnel)
On the radial side it divides into two layers, a
superfacial layer and a deep layer to
accommodate the tendon of the flexor carpi
radialis.
ď‚— The carpal tunnel contains nine tendon and a
nerve the flexor policis longus ,the four flexor
digitorum superficialis, the four flexor
digitorum profundus as well as median nerve.
ď‚— The flexor carpi radialis tendon inserts into the
scapoid and into the second metacarpal bone
after passing through the cannal formed by
the splitting of the flexor reticulum.
ď‚— The flexor carpi ulnaris tendon inserts into the
pisiform, whereas the palmaries longus
tendon continues with the palmar fascia or
inserts into the flexor retinaculum.
Pathophysiology
The tendon of the hands are wrapped with a lining that produce
a synovium fluid which lubricates the tendons.
With repetitive movement of the hand the lubrication system may
malfunction.
This reduction in lubrication results in inflammation and swelling
of the tendon area
Abnormality high carpal tunnel pressures exit in patients with
CTS.
This pressure causes obstruction to venous outflow, back
pressure, edema formation and ultimately ischemia in the
nerve.
Etiology
Acute etiology
ď‚— Sudden trauma
ď‚— Wrist fracture
ď‚— Crush injury
ď‚— Burns
Chronic Etiology
ď‚— Conservative cast
Occupational Etiology
ď‚— Repetitive wrist flexion/ extension
ď‚— Intense Greeping
ď‚— Computer keyboards
Sign and symptoms
ď‚— Paresthesia, Pain and Numbness in the palmar
surface of the hand.
ď‚— Nocturnal pain
ď‚— ADL causes increase the symptoms
ď‚— Arching in the thumb
ď‚— Clumsiness in hand
ď‚— Change in touch or temperature sensation
ď‚— Pain from the wrist to the fingers
Swelling of hand and forearm
ď‚— Weakness of grip ability to pinch and other thumb
actions
Work related
ď‚— Tailor,sewer
ď‚— Gardener
ď‚— Home maker
ď‚— Painter
ď‚— Locksmith
ď‚— Typing
Non work related
ď‚— Arthritis
ď‚— Diabetes
ď‚— Thyroid gland imbalance
Broken or dislocated bones of the wrist
ď‚— Hormonal changes associated with
menopause
ď‚— Pregnancy
Nerve Motor loss Sensory loss Functional loss
Median nerve
(C6-C8,T1)
Flexor pollicis
brevis,Abductor
pollicis
brevis,opponensp
olicis ,lateral two
lubricals
Palmar and dorsal
thumb,index,
and middle and
lateral half of ring
finger.
Thumb opposition
Thumb flexion
Weak grip
Provocative testing maneuvers
ď‚— Phalen Maneuver
ď‚— Tinel Sign
ď‚— Carpal compression test
Differential diagnosis
ď‚— Thoracic outlet syndrome
ď‚— -Adson test
ď‚— Roos test
 Cervical rediculopathy
 Spurling test
Treatment
ď‚— Non Operative
ď‚— Splint
ď‚— Activity modification
ď‚— Cortisone Injection
ď‚— NSAIDs
 Operative
 Open carpal tunnel release
Rehabilitation protocol
O-7days
Gentle wrist flexion and extension exercise
ď‚— Full finger flexion and extention exercise
7 days
ď‚— Removeve the dressing
ď‚— Discontinue the wrist splint if the patient feel
uncomfortable
7-14 days
ď‚— permit the patient to use the hand in activities of daily
leaving as pain allow.
2 weeks
ď‚— Control pain by electrical stimulation.
ď‚— Remove the suture and begin strenthening exercises
THANK YOU