mFI-5

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General

  • Aka: Modified 5-Item Frailty Index
  • Used for elective 1- to 2-level posterior lumbar fusions.

Measurement

  1. Congestive heart failure (within 30 days of surgery)
  1. Diabetes mellitus (insulin dependent or noninsulin dependent)
  1. Chronic obstructive pulmonary disease or pneumonia
  1. Dependent functional health status (total or partial) at time of surgery
  1. Hypertension requiring medication

Outcome

  • Increasing mFI-5 score associated with (Score 0 vs score 5))
    • higher odds of any complication (OR 1.45)
    • 30-day readmissions (OR 1.46)
    • Nonhome discharge (OR 1.16)
  • Higher mFI-5 score was significantly associated with increased risks of
    • Superficial surgical site infection
    • Deep surgical site infection
    • Unplanned reoperation
    • Any medical complication
    • Pneumonia
    • Unplanned intubation
    • Postoperative ventilator use
    • Progressive renal insufficiency
    • Acute renal failure
    • Urinary tract infection
    • Stroke
    • Myocardial infarction
    • Bleeding requiring transfusion
    • Sepsis
    • Septic shock