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Deep vein thrombosis after lower limb amputation.

B Burke¹, R Kumar, V Vickers

¹Department of Physical Medicine and Rehabilitation, Department of Veterans Affairs Medical Center, Los Angeles, California 90073, USA.

American Journal of Physical Medicine & Rehabilitation

|April 1, 2000

Summary

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Deep vein thrombosis (DVT) is common after below-knee amputation, with half of patients in this study showing evidence of DVT. Further research with larger sample sizes is needed to determine if routine screening ultrasounds are beneficial.

Area of Science:

Vascular Surgery
Thrombosis Research
Amputation Medicine

Background:

Below-knee amputation (BKA) can lead to complications like deep vein thrombosis (DVT).
The incidence and clinical significance of DVT in the residual limb after BKA require further investigation.

Purpose of the Study:

To prospectively document the incidence of deep vein thrombosis (DVT) in the residual limb following a below-knee amputation.

Main Methods:

Prospective study of 8 male patients post-BKA, excluding those on anticoagulants.
Doppler ultrasound of the residual limb at 2 and 4 weeks post-amputation.
Coagulation profiles and DVT risk factor assessments were performed.

Main Results:

Four out of eight patients (50%) demonstrated ultrasound evidence of DVT in the thigh.

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Two of the four patients with DVT had clinical signs or symptoms.

Laboratory values and risk factors did not significantly predict DVT occurrence in this small cohort.

Conclusions:

The study suggests a high incidence of DVT associated with below-knee amputation.
A larger sample size is necessary to establish the indication for routine screening ultrasounds post-BKA.