Application of mechanical diagnosis and therapy to a patient diagnosed with de Quervain's disease: a case study.
METHODS
Single case report.


BACKGROUND
Mechanical diagnosis and therapy (MDT) is widely used in the management of both spinal disorders and extremity problems. However, there is no study that has introduced the application of this concept to hand therapy.


OBJECTIVE
To demonstrate the application of MDT to a patient with a thumb problem, which was diagnosed as de Quervain's disease.


METHODS
According to MDT principles, the thumb pain was assessed and treated.


RESULTS
Radio carpal joint distraction with thumb metaphalangeal flexion combined with wrist ulnar deviation was found as the directional preference, which abolished the thumb pain. After the repeated movements Finkelstein test and tenderness to pressure became negative.


CONCLUSIONS
A patient apparently presenting with de Quervain's disease was classified as derangement syndrome using MDT. The pain was rapidly and successfully treated with self-management exercises.


METHODS
4.
Kaneko
Shouta
S
Shinoro Orthopedic, 4-5-3-9, Shinoro, Kita-ku, Sapporo, Hokkaido, Japan. habataku23@yahoo.com.jp
Takasaki
Hiroshi
H
May
Stephen
S
D053684:De Quervain Disease / Q000145:classification / Q000175:diagnosis* / Q000628:therapy*; D005260:Female; D006801:Humans; D008875:Middle Aged; D009068:Movement; D010808:Physical Examination / Q000379:methods*; D026741:Physical Therapy Modalities