Major lower extremity amputations – risk of re-amputation, time to re-amputation, and risk factors: a nationwide cohort study from Denmark

Abstract: Background and purpose:
Re-amputation after lower extremity amputation is frequent. The primary aim of our study was to investigate cumulative re-amputation risk after transtibial amputation (TTA), knee disarticulation (KD), and transfemoral amputation (TFA) and secondarily to investigate time to re-amputation, and risk factors.

Methods:
This observational cohort study was based on data from the Danish Nationwide Health registers. The population included first-time major lower extremity amputations (MLEA) performed in patients ≥ 50 years between 2010 and 2021. Both left and right sided MLEA from the same patient were included as index procedures.

Results:
11,743 index MLEAs on 10,052 patients were included. The overall cumulative risks for re-amputation were 29% (95% confidence interval [CI] 27–30), 30% (CI 26–35), and 11% (CI 10–12) for TTA, KD, and TFA, respectively. 58% of re-amputations were performed within 30 days after index MLEA. Risk factors for re-amputation within 30 days were dyslipidemia (hazard ratio [HR] 1.2, CI 1.0–1.3), renal insufficiency (HR 1.2, CI 1.1–1.4), and prior vascular surgery (HR 1.3, CI 1.2–1.5).

Conclusion:
The risk of re-amputation was more than twice as high after TTA (29%) and KD (30%) compared with TFA (11%). Most re-amputations were conducted within 30 days of the index MLEA. Dyslipidemia, renal insufficiency, and prior vascular surgery were associated with higher risk of re-amputation

Location
Deutsche Nationalbibliothek Frankfurt am Main
Extent
Online-Ressource
Language
Englisch
Notes
Acta orthopaedica. - 95 (2024) , 86-91, ISSN: 1745-3682

Classification
Medizin, Gesundheit

Event
Veröffentlichung
(where)
Freiburg
(who)
Universität
(when)
2024
Creator
Brix, Anna Trier Heiberg
Rubin, Katrine Hass
Nymark, Tine
Schmal, Hagen
Lindberg-Larsen, Martin

DOI
10.2340/17453674.2024.39963
URN
urn:nbn:de:bsz:25-freidok-2467017
Rights
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Last update
14.08.2025, 10:51 AM CEST

Data provider

This object is provided by:
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Associated

  • Brix, Anna Trier Heiberg
  • Rubin, Katrine Hass
  • Nymark, Tine
  • Schmal, Hagen
  • Lindberg-Larsen, Martin
  • Universität

Time of origin

  • 2024

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