Delta P less than 30 mmHg preferred over absolute pressure thresholds
American College of Surgeons Best Practices Guidelines (2015) — Class I recommendation for fasciotomy based on delta P
Absolute pressure thresholds of 30–45 mmHg have low specificity and lead to unnecessary fasciotomies
JAMA Surgery systematic review (Mortensen et al., 2019): reviewed diagnostic modalities — clinical exam plus pressure measurement remains gold standard
Fasciotomy timing evidence
Fasciotomy within 6 hours: significantly better functional outcomes
Fasciotomy after 12 hours: substantially increased rates of infection, amputation, and disability
Long B et al. (Journal of Emergency Medicine, 2019): comprehensive EM management review
Pharmacovigilance evidence
FAERS analysis (Kong et al., Expert Opinion on Drug Safety, 2025): approximately 100 drugs associated with compartment syndrome reports
Median onset of drug-associated ACS: 45 days
Anticoagulants most prominent drug class contributing to ACS risk
Noninvasive monitoring development
Near-infrared spectroscopy — most promising noninvasive technology
No validated noninvasive diagnostic modality currently replaces clinical exam and ICP measurement
Walters et al. (Journal of Trauma and Acute Care Surgery, 2019): state-of-the-art review of noninvasive modalities
Patient Discharge Instructions
copy discharge instructions
Discharge instructions for compartment syndrome of the leg
You were treated for a condition where pressure built up inside the muscles of your leg
This is a serious emergency — if it recurs or worsens, return to the emergency department immediately
Activity restrictions
Elevate your leg above heart level when resting to reduce swelling
Do not place weight on the affected leg until cleared by your surgeon
No strenuous activity, exercise, or sports until cleared by orthopedic surgery
Follow up with orthopedic surgery within 48–72 hours of discharge
Cast and splint care
If you have a cast or splint: do not get it wet
Do not insert objects inside the cast
If the cast feels too tight or painful, loosen the elastic wrap immediately
If you cannot loosen the wrap, return to the emergency department right away
Warning signs — return to emergency department immediately
Worsening pain that is not controlled by your pain medications
Pain that is much worse than expected for your injury
Numbness or tingling in the foot or toes
Inability to move your toes or foot
Foot or leg feels very tight, hard, or swollen
Swelling that is rapidly worsening
Dark brown, tea-colored, or cola-colored urine
Decreased urination or no urine output
Fever greater than 38.5 C (101.3 F)
Skin changes over the leg: blistering, black discoloration, or open wound
Post-fasciotomy specific instructions
Your surgical wounds will be left open initially — this is intentional and necessary
Keep wound dressings clean and dry between dressing changes
Return to the operating room is planned at 48–72 hours — do not miss this appointment
Physical therapy and passive stretching will be needed to prevent contractures
References
Guidelines and key sources
American College of Surgeons guidelines
Davis ML, Della Rocca GJ, Brenner M, et al. Best Practices in the Management of Orthopaedic Trauma. American College of Surgeons, 2015
Primary source for four-compartment fasciotomy technique, delta P threshold, and positioning guidance
Bernard A, Oyler DR, Anglen JO, et al. Best Practices Guidelines for Acute Pain Management in Trauma Patients. American College of Surgeons, 2020
Landmark reviews
von Keudell AG, Weaver MJ, Appleton PT, et al. Diagnosis and Treatment of Acute Extremity Compartment Syndrome. Lancet 2015; doi:10.1016/S0140-6736(15)60827-7
Long B, Koyfman A, Gottlieb M. Evaluation and Management of Acute Compartment Syndrome in the Emergency Department. Journal of Emergency Medicine 2019; PMID 30685220
Mortensen SJ, Vora MM, Mohamadi A, et al. Diagnostic Modalities for Acute Compartment Syndrome of the Extremities: A Systematic Review. JAMA Surgery 2019; doi:10.1001/jamasurg.2019.1050
Surgical technique evidence
Neal M, Henebry A, Mamczak CN, Ruland R. The Efficacy of a Single-Incision Versus Two-Incision Four-Compartment Fasciotomy of the Leg: A Cadaveric Model. Journal of Orthopaedic Trauma 2016; PMID 26709816
Chang G, Fram B, Krieg JC. Single-Incision 4-Compartment Fasciotomy of the Lower Leg: Safe, Effective, and Advantageous. Orthopedics 2020; PMID 32271928
Outcomes and rhabdomyolysis data
Tsai WH, Huang ST, Liu WC, et al. High Risk of Rhabdomyolysis and Acute Kidney Injury After Traumatic Limb Compartment Syndrome. Annals of Plastic Surgery 2015; PMID 25785380
Fernandez JJ, Smith SR. Traumatic Rhabdomyolysis: Crush Syndrome, Compartment Syndrome, and the Found Down Patient. JAAOS 2024; PMID 38109720
Pharmacovigilance and specialized sources
Kong W, Shu Y, Tang J, Wan J, Yang X. Compartment Syndrome Associations With Drugs: A Pharmacovigilance Study of the FAERS. Expert Opinion on Drug Safety 2025; PMID 38966913
Walters TJ, Kottke MA, Hargens AR, Ryan KL. Noninvasive Diagnostics for Extremity Compartment Syndrome Following Traumatic Injury: A State-of-the-Art Review. Journal of Trauma and Acute Care Surgery 2019; PMID 31246908
Farah O, Farah G, Mumuni S, Volchenko E, Hutchinson MR. Acute Compartment Syndrome in the Athlete. Clinics in Sports Medicine 2023; PMID 37208063
Balogh ZJ, Butcher NE. Compartment Syndromes From Head to Toe. Critical Care Medicine 2010; PMID 20724877
SymptomDx is an educational tool for medical professionals. It does not replace clinical judgment. Verify all clinical data and drug dosages with authoritative sources.