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Orthopedics & Traumatology

Flexor Tendon Laceration, Left Ring Finger, Zone II, Initial Encounter

ICD-10 Code
S66.312A

Laceration of the flexor tendon in Zone II of the left ring finger (no man's land), initial encounter.

Clinical Presentation & Protocol

Patient Usually Complains Of

Patient presents with a traumatic laceration to the volar aspect of the left ring finger occurring [Time/Date]. Patient reports sharp pain, inability to actively flex the distal interphalangeal (DIP) and proximal interphalangeal (PIP) joints, and localized bleeding. No reported numbness or paresthesia in the digital nerve distribution. Mechanism of injury: [Mechanism].

Clinical Examination Findings

Left ring finger: Transverse/oblique laceration noted at the level of the proximal phalanx (Zone II). Active flexion of the FDP and FDS is absent. Passive range of motion is intact. Neurovascular status: Digital arteries patent with capillary refill < 2 seconds; sensation intact to light touch in the radial and ulnar digital nerve distributions. No evidence of fracture on palpation.

Treatment Protocol

Wound irrigated and explored under local anesthesia. Flexor tendon retraction confirmed. Digital block performed. Wound closed with [Suture Type]. Splinted in dorsal blocking splint (wrist in 20° flexion, MCP joints in 70° flexion, IP joints in full extension) to protect tendon repair/prevent rupture. Tetanus prophylaxis updated. Referral to hand surgery for definitive tendon repair.

Detailed clinical guide coming soon.