Orthopaedic Hand Trauma CH32 (1)
322
SECTION 3 | Tendon Injuries
Figure 32.1 Mechanisms of injury for mallet finger.
Extensor tendon
Collateral band
Mallet injury
Central band
Terminal tendon
FDP
FDS rupture
Lateral band
Lax volar plate
Lumbrical muscle
Transverse retinacular ligament
Interosseous muscle
Figure 32.2 Mechanism of swan neck deformity in the setting of mallet finger. FDS, flexor digitorum superficialis; FDP, flexor digitorum profundis.
EVALUATION
■ ■ Patient’s history usually includes mechanism of injury, and the patient will usually present in the acute phase.
Made with FlippingBook HTML5