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Haematology · Orthopaedics

TRiP(cast) Score calculator

Enter the published formula inputs below to calculate and interpret this score.

Clinical inputs

Trauma, most severe

Choose one row, the most severe injury.

Immobilization

Choose one cast or brace.

years

Allowed range: 0–110 years

Quick picks

Under 35 scores 0, 35 to under 55 scores 1, 55 to under 75 scores 2, and 75 or older scores 3.

Sex
kg/m2

Allowed range: 10–70 kg/m2

Quick picks

Under 25 scores 0, 25 to under 35 scores 1, and 35 or higher scores 2.

VTE in a first-degree relative
Personal VTE or known major thrombophilia
Current oral contraceptive or estrogen therapy
Cancer diagnosed within 5 years
Pregnancy or puerperium
Other immobility in the past 3 months

Hospital admission, bed rest, a flight longer than 6 hours, or lower-limb paralysis, besides the cast.

Surgery within 3 months
Comorbidity

Heart failure, rheumatoid arthritis, chronic kidney disease, chronic obstructive pulmonary disease, or inflammatory bowel disease. The group scores 1, not 1 per disease.

Chronic venous insufficiency

Result

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Clinical inputs

  • Trauma, most severe
  • Immobilization
  • Age (years)Accepted range: 0 to 110
  • Sex
  • Body mass index (kg/m2)Accepted range: 10 to 70
  • VTE in a first-degree relative
  • Personal VTE or known major thrombophilia
  • Current oral contraceptive or estrogen therapy
  • Cancer diagnosed within 5 years
  • Pregnancy or puerperium
  • Other immobility in the past 3 months
  • Surgery within 3 months
  • Comorbidity
  • Chronic venous insufficiency

Primary source

Nemeth B et al. Clinical risk assessment model to predict venous thromboembolism risk after immobilization for lower-limb trauma. EClinicalMedicine. DOI: 10.1016/j.eclinm.2020.100270. PMID: 32300734. Table 1: choose the most severe trauma (high 3, intermediate 2, low 1) and one cast (upper-leg 3, lower-leg 2, foot cast with the ankle free or semi-rigid without plantar support 1, other bracing with plantar support 0). Age under 35 is 0, 35 to under 55 is 1, 55 to under 75 is 2, and 75 or older is 3. Male sex 1. BMI 25 to under 35 is 1 and BMI 35 or higher is 2. Family history of VTE 2. Personal VTE or known major thrombophilia 4. Current oral contraceptive or estrogen therapy 4. Cancer diagnosis within 5 years 3. Pregnancy or puerperium 3. Other immobility within 3 months 2. Surgery within 3 months 2. Comorbidity 1. Chronic venous insufficiency 1. The paper defines low risk as under 7 points and high risk as 7 or higher. (2020)

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