De Quervain’
Tenosynovitis
                 INTRODUCTION
• It is named after Swiss surgeon, FRITZ DE
  QUERVAIN who first described the condition
  in 1895.
•  It is a stenosing tenosynovitis which affects
  the tendon sheaths of the 1st dorsal
  compartment of the wrist.
•  It is characterised by degeneration and
  fibrosis of the tendon sheath.
                  Incidence
• Occurs most often in individuals age between
  30 and 50 years
•  It affects women up to six times more often
  than men
• Is commonly associated with dominant hand
             First Dorsal Compartment
• The first dorsal
  compartment is
  approximately 2
  cm long and is
  located over the
  radial styloid
  proximal to the
  radio- carpal
  joint .
Abductor pollicis longus    Extensor pollicis bevis
• Originates from-          • Originates from-
  posterior shaft of ulna     posterior shaft of
  and radius                  radius
• Inserts at-base of 1st    • Inserts at-base of
  meta carpal                 proximal phalanx
• Supplied by-radial        • Supplied by-radial
  nerve                       nerve
• Action- abduction         • Action- extension of
  +extension of thumb         thhumb.
              Predisposing Factors
• Overuse injury
• Repetitive tasks that involve overexertion of
  thumb, radial and ulnar deviation of the wrist
• Arthritis
• pregnancy
 Activities
 such as
• Wringing out wet clothes.
• Long use of computer
  mouse.
• Use of scissors, surgical
  tongs.
• Texting
• Hammering.
• Knitting.
• Lifting heavy objects such
  as a jug of milk, taking a
  frying pan off of the stove,
  or mother lifting a baby out
  of a crib (babywrist).
                      Etiology
The tendons of the abductor pollicis longus and
  the extensor pollicis brevis are tightly secured
  against the radial styloid by the overlying
  extensor retinaculum.
 Acute or repetitive trauma restrains gliding of
  the tendons results in inflammation of
  synovial sheath
              Increases friction
Reactive fibrosis and thickening of the sheath.
                Degeneration.
                   Clinical Features
• Patient may complain
  pain on the radial side
  of the wrist that is
  worsened by moving
  the wrist or thumb.
• Sometimes there is a
  visible swelling over the
  radial styloid.
• The tendon sheath may feels thick and
  hard.
• Tenderness is mostly acute at the tip of
  the radial styloid.
• Pain aggravates on grasping and raising
  objects with the wrist
• Wet leather sign
• The Finkelstein test is positive.
                       Finkelstein test
• It is a provocative test used in diagnostic for de Quervain's
  tenosynovitis.
•  Makes a fist with the
  thumb inside.
• Now ask the patient to bend the wrist toward little finger
            Differential
            Diagnosis
• CMC arthritis of the thumb: pain and crepitus
  present with the thumb "crank and grind test .
• Scaphoid fracture: in this tenderness will be in the
  anatomic snuff box.
• Chauffeur's fracture
• Intersection syndrome-tenosynovitis of the second
  dorsalcompartment involving the tendons of
  extensor carpi radialis brevis (ECRB) and extensor
  carpi radialis longus (more proximal pain)
• Extensor pollicis longus (EPL) tendonitis of the third dorsal
  compartment: common in patients with rheumatoid arthritis
  or with direct injury and distal radius fracture .
       TREATMENT
       GOALS
I. Restoration of normal,painless use of the involved
   hand.
II. Resolution of the inflammatory process.
III. Prevention of recurrence of the through
     education.
IV. Restoration of pain-free movements
     and strength .
           CONSERVATIVE MANAGEMENT
    Medical management
• Corticosteroid injection: can be
  given to patient with morderate to
  marked pain with symptoms
  lasting for more than 3 weeks.
• NSAIDS : it is precribed initially
  for 6 to 8 weeks to reduce pain
  and inflammation.
         PHYSIOTHERAPY MANAGEMENT
• Immoblisation : A thumb
  spica splint is used to
  restrict thumb movement
  so that the first dorsal
  compartment tendons are
  at rest.
• Cold compression : for 10 to
  12 minutes over the
  inflammed area.
• Ultrasonic therapy: pulsed mode, 3 mhz, time-
  5min.
• Phonophorersis :with 10% hydrocortisone.
• Gentle active and passive motion of thumb and
  wrist encouraged for 5 minutes every hour to
  prevent joint contractures and adhesions.
• Strenghtening and stretching exercises after the
  initial pain subsides.
Indication for decompression surgery
• Unsatisfactory symptom reduction
• Persistence of symptoms after conservative
  interventions.
• Limitations in A.D.Ls due to pain.
   After Decompression Surgery
0-2 Days
Immobilization within cast
Active movement of IP joint: Flexion and
Extension.
After 48 hours of surgery dressings are removed.
After this begin with gentle active motion of
the wrist and thumb.
2-14
Days
• Presurgical splint is worn for comfort and
  active exercises are continued for Ipjoint,
  elbow and shoulder joint .
 6 Weeks
• By 10- 14 days: sutures are removed.
   • Grip and pinch strengthening exercises
     may begin at approximately 3 weeks
     and can be progressed gradually.
   • By the end of 6 week the patient usually is
     able to resume full activities.
                    Ergonomics
1) Ergonomic mouse: It
   feature a molded
   thumb rest support will
   help reduce the amount
   of gripping force your
   thumb needs to apply
   to hold the mouse.
2)Use the power grip (all fingers in a loose grip)
  instead of using a pinch.
3)Minimize repetition and rest arm occasionally
  during a repetitive activity or slow down activity.
4) Use a light grip on tools, pens, the mouse.
5) Alternate hands during activities if possible
                      Trigger finger
                              
 Trigger finger is a painful condition that causes the fingers or
  thumb to catch or lock when bent. In the thumb its called
  trigger thumb.
 Trigger finger happens when tendons in the finger or thumb
  become inflamed. Tendons are tough bands of tissue that
  connect muscles and bones. Together, the tendons and muscles
  in the hands and arms bend and straighten the fingers and
  thumbs.
 A tendon usually glides easily through the tissue that covers it
  (called a sheath) because of a lubricating membrane
  surrounding the joint called the synovium. Sometimes a tendon
  may become inflamed and swollen. When this happens,
  bending the finger or thumb can pull the inflamed tendon
  through a narrowed tendon sheath, making it snap or pop.
                 Symptoms
                           
 Symptoms of trigger finger usually start without any
  injury, although they may follow a period of heavy hand
  use. Symptoms may include:
 A tender lump in palm
 Swelling
 Catching or popping sensation in finger or thumb joints
 Pain when bending or straightening your finger
 Stiffness and catching tend to be worse after inactivity,
  such as when wake in the morning. fingers will often
  loosen up as move them.
            What Causes Trigger Finger?
                                
• A repeated movement or forceful use of the finger or thumb.
• Rheumatoid arthritis
• Gout
• Diabetes
•  Grasping something, such as a power tool, with a firm grip for a
    long time.
          Who Gets Trigger Finger?
                        
 Trigger finger is more common in women than men
  and tends to happen most often in people who are 40
  to 60 years old.
 Farmers
 Industrial workers
 Musicians often get trigger finger since they repeat
  finger and thumb movements a lot
 Smokers can get trigger thumb from repeated use of
  a lighter.
              How is trigger finger treated?
                                   
In some people, trigger finger may get better without treatment.
However, If treatment is necessary, several different options are
available, including:
 Rest and medication – avoiding certain activities and taking non-
    steroidal anti-inflammatory drugs (NSAIDs) may help relieve pain.
 Splinting – this involves strapping the affected finger to a plastic splint
    to help ease your symptoms.
 Corticosteroid injections – steroids are medicines that may be used to
    reduce swelling.
Surgery on the affected
sheath
surgery involves releasing the
affected sheath to allow the
tendon to move freely again.
This is a relatively minor
procedure generally used when
other treatments have failed. It
can be up to 100% effective,
although may need to take two
to four weeks off work to fully
recover.
                   Complications
                         
 Incomplete extension — due to persistent tightness
  of the tendon sheath beyond the part that was
  released
 Persistent triggering — due to incomplete release of
  the first part of the sheath
 Bowstringing — due to excessive release of the
  sheath
 Infection
                   Recovery
                            
 Most people are able to move their fingers immediately
  after surgery.
 It is common to have some soreness in palm. Frequently
  raising hand above heart can help reduce swelling and
  pain.
 Recovery is usually complete within a few weeks, but it
  may take up to 6 months for all swelling and stiffness to
  go away.
 If finger was quite stiff before surgery, physical therapy
  and finger exercises may help loosen it up.
Mallet finger
Introduction
• Deformity of the finger caused by damaged
  extensor tendon distal to DIP.
• Also called baseball finger or hammer finger or
  drop finger.
• Disruption may be bony or tendinous.
• Injury at zone 1.
• Common in young to middle-aged males and
  older females.
• Most frequently involves long, ring and small
  fingers of dominant hand.
Mechanism
• Ball or the object strikes the tip of the finger or
  thumb and forcibly bends it.
• A minor force such as tucking in a bed sheet.
• Force tears the tendon or even pull away a piece
  of bone.
• Less common mechanism is a sharp or crushing-
  type laceration to the dorsal DIP joint.
• Less commonly, a forceful hyperextension injury
  of the DIP joint.
Classification (Doyle’s)
Type I     Closed injury with or without small dorsal avulsion fracture
Type II    Open injury (laceration)
Type III   Open injury ( deep soft tissue abrasion involving loss skin and
           tendon substance)
Type IV    Mallet fracture
           A- distal phalanx physeal injury (pediatrics)
           B- fracture fragment involving 20% to 50% of articular surface
           (adult)
           C- fracture fragment >50% of articular surface (adult)
Signs & symptoms
• The fingertip droops. The patient cannot
  straighten but passive movement is normal.
• Finger may be painful, swollen and bruised.
• Lack of active DIP extension.
• Swan-neck deformity
Diagnosis
• X-ray : Avulsion of distal phalanx
          May be a ligamentous injury with normal
          bony anatomy.
Treatment
NONSURGICAL:
• Goal – to keep the fingertip straight until the
  tendon heals.
• Extension splints with DIP joint in extension for
  6-8 weeks then at night for a 4 additional
  weeks.
• Bone avulsion – mallet splint for 6 weeks
• Maintain free movement of the PIP joint.
• Begin progressive flexion exercise at 6 weeks.
Surgical :
Indications-
• volar subluxation of distal phalanx,
• large bone fragments with >50% articular suface
  involved,
• non-surgical treatment was not successful.
• >2mm articular gap
• CRPP or ORIF – pin fixation or dorsal/extension
  blocking pin.
• ORIF with a pull-out wire.
• Surgical reconstruction of terminal tendon in
  chronic injury > 12 weeks with healthy joint –
  direct repair, tenodermodesis or retinacular
  ligament reconstruction
• Central slip release (Fowler)
• Type 1 and type 2 can be treated closed.
• Type 3 require soft tissue coverage and pinning
  of the DIP joint.
• DIP arthrodesis – painful, stiff, arthritic DIP
  joint
• Swan neck deformity – lateral band tenodesis,
  FDS tenodisis, Fowler central slip tenotomy
Complications
• Extensor lag
• Non union
• Swan neck deformities due to – attenuation of
  volar plate and transverse retinacular ligament
  at PIP joint, dorsal subluxation of lateral bands,
  hyperextension of PIP, contracture of
  traiangular ligament.