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Zorluk: OrtaSurgical and Procedural Interventions

A 24-year-old man is evaluated in the emergency department for severe right lower leg pain. Two hours ago, he sustained a closed mid-shaft tibial fracture during a soccer game and was subsequently placed in a circumferential long-leg cast. He now reports excruciating, throbbing pain in the right leg that is rapidly worsening and completely unrelieved by intravenous morphine. Vital signs are temperature 37.1°C (98.8°F), blood pressure 138/86 mm Hg, heart rate 112/min, and respiratory rate 18/min. On examination, the leg feels intensely tight, and passive extension of the toes elicits agonizing pain. Paresthesias are noted over the dorsum of the foot. Distal dorsalis pedis and posterior tibial pulses are palpable. What is the most appropriate sequential order of management steps for this patient?

  1. 1Complete removal of the cast and underlying padding down to the skin
  2. 2Measurement of intracompartmental tissue pressures
  3. 3Emergent four-compartment fasciotomy
  4. 4Delayed primary closure or split-thickness skin grafting

Cevap

The correct sequence for managing suspected acute compartment syndrome is to first relieve external compression by removing the cast, then objectively measure tissue pressures to confirm the diagnosis, followed by definitive emergent fasciotomy, and finally delayed wound closure once tissue swelling subsides.
Acute compartment syndrome is a surgical emergency characterized by increased pressure within a closed fascial space, leading to microvascular compromise and tissue ischemia. The earliest and most sensitive clinical sign is severe pain out of proportion to the injury, which is exacerbated by passive stretch of the muscles in the affected compartment. It is critical to recognize that palpable pulses do not rule out compartment syndrome, as capillary perfusion pressure falls below tissue pressure long before the larger arteries are occluded. The first and most immediate step in management is to relieve any external compression by completely bivalving and removing the cast and underlying padding down to the skin. If clinical signs do not rapidly resolve, the next appropriate sequential step is measuring intracompartmental pressures (often assessed via delta pressure, calculated as diastolic blood pressure minus compartment pressure; a delta < 30 mm Hg is diagnostic). Once confirmed, definitive treatment requires emergent surgical decompression via a four-compartment fasciotomy of the lower leg. The surgical incisions are left open to accommodate ongoing tissue swelling and are subsequently managed with delayed primary closure or skin grafting 48 to 72 hours later.

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1
Complete removal of the cast and underlying padding down to the skin.
Rapid relief of extrinsic compressive forces on the injured limb.
External forces from tight casts or dressings are a major reversible cause of elevated compartment pressure; their immediate removal is the most critical initial intervention.
2
Measurement of intracompartmental tissue pressures.
Provides objective diagnostic confirmation of compartment syndrome.
If removing the cast does not result in rapid clinical improvement, tissue pressure measurement confirms the diagnosis (typically delta pressure < 30 mm Hg) prior to proceeding to invasive operative management.
3
Emergent four-compartment fasciotomy.
Surgical release of unyielding fascial boundaries.
Fasciotomy is the definitive treatment required to restore microvascular tissue perfusion and prevent irreversible ischemic muscle and nerve necrosis.
4
Delayed primary closure or split-thickness skin grafting.
Definitive closure of the surgical defect.
Fasciotomy incisions must be left open acutely to prevent recurrent pressure spikes from ongoing tissue swelling; closure is only safe once the underlying edema resolves.

Anahtar Kavram

The sequential management of acute compartment syndrome requires immediate removal of external constrictors, diagnostic confirmation via pressure measurement, definitive decompression via emergent fasciotomy, and subsequent delayed wound closure.
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Surgical and Procedural Interventions

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