Hip Fracture Risk Calculator

Hip Fracture Risk Calculator for Orthopedics. The total ranges from zero to ten and describes the model inputs. This implementation intentionally reports points without a 30-day mortality percentage because an appropriate calibrated model and population must be specified for that further step.

For shared guidance on choosing a tool and documenting results, read the clinical calculator workflow.

How this calculator works

The original Nottingham points give age 66-85 three and age 86 or older four. Male sex, hemoglobin at or below 10 g/dL, AMTS at or below six, institutional residence, at least two comorbidities and malignancy each add one.

When to use this calculator

Despite the navigation title, this is postoperative prognostic scoring in a patient already admitted with a hip fracture. It is not a prediction of developing a future fracture and must not be substituted for an osteoporosis assessment.

Inputs used

  • Adult admission age, original sex coefficient, hemoglobin g/dL, completed AMTS out of ten, residence, qualifying comorbidities and malignancy history.

Clinical interpretation

The total ranges from zero to ten and describes the model inputs. This implementation intentionally reports points without a 30-day mortality percentage because an appropriate calibrated model and population must be specified for that further step.

Worked example

An 80-year-old woman with hemoglobin 10.0 g/dL, AMTS seven, home residence, two qualifying comorbidities and no malignancy scores 3 + 1 + 1 = 5. Hemoglobin 10.1 instead produces four; the former 10.4 cutoff was incorrect.

Limitations and safety notes

Use the abbreviated mental test, not the 30-point MMSE, and the source comorbidity definitions. Malignancy refers to active disease within the preceding 20 years. Prognostic scoring alone cannot determine whether surgery should be withheld.

References

  • https://pubmed.ncbi.nlm.nih.gov/18723517/
  • https://pmc.ncbi.nlm.nih.gov/articles/PMC7497295/

Editorial review and citation methodology

Maintained by the Quick Medical Calculator Editorial Team. Content record date: September 9, 2026. A content date is not evidence of independent clinical review. Individual clinical sign-off is not recorded on this page.

  • Prefer original validation studies for scoring systems and prediction tools.
  • Use current specialty society guidance, transplant allocation policy, public health guidance, or regulator resources when they govern clinical use.
  • Include limitations and safety notes when a calculator is population-specific, context-dependent, or unsuitable as a standalone decision tool.

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