Effects of a custom forelimb prosthesis on weight distribution, stability, and gait in a canine amputee : a multi-method approach

Muršec, Aljaž (author), Lampe, Tomaž (author), Sodja, Dolores (author), Erjavec, Vladimira (author), Fošnarič, Miha (author)

We aimed to evaluate whether the use of a custom prosthesis improves static stability and gait symmetry in a dog with a forelimb amputation. This study involved two therapy dogs owned by the same individual, both mixed breeds with similar physical characteristics. Dog with amputation had a full forelimb amputation and had been successfully using a prosthesis since 2022. Healthy dog served as a control in three different assessment methods evaluating prosthetic effectiveness. For static measurements, a four-scale method and a force plate were used; dynamic data were collected using a pressure-sensor mat. Dog with amputation distributed 21 % of its body weight onto the prosthesis, reducing the load on the contralateral limb from 49 % to 35 %. The total forelimb load increased from 49 % to 56 % with the prosthesis. Stabilometric analysis indicated improved stability with the prosthesis: significant reduction in sway path length, while changes in directional sway components and sway area were not statistically conclusive. Sensor-mat measurements on GAITRite showed that forelimb amputation substantially reduced step length (21.1 cm) and stride length (42.4 cm) on the amputated side, and increased traversal time to 2.4 s, reflecting pronounced gait asymmetry and impaired limb function. The use of a prosthesis improved step length (35.0 and 30.1 cm) and stride length (64.1 and 63.0 cm), and decreased traversal time to 2.2 s, indicating enhanced gait efficiency, although values did not fully reach those of the healthy dog (step length 46.8/44.6 cm; stride length 93.5/87.7 cm; time 1.5 s). These results demonstrate the functional benefits of prosthetic use in canine forelimb amputation.

• Language: English
• Keywords: dog, amputation, prosthetics, biomechanics, weight distribution
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: ZF - Faculty of Health Sciences; VF - Veterinary Faculty
• Publication status: Published
• Publication version: Version of Record
• Publication date: 01.01.2026
• Year: 2026
• Number of pages: 7 str.
• Numbering: Vol. 32, art. 100621
• PID: 20.500.12556/RUL-184300
• UDC: 636.7.09:616-089
• ISSN on article: 2451-943X
• DOI: 10.1016/j.vas.2026.100621
• COBISS.SI-ID: 271585027
• Publication date in RUL: 03.07.2026

Record is a part of a journal

• Title: Veterinary and animal science
• Publisher: Elsevier Ltd.
• ISSN: 2451-943X
• COBISS.SI-ID: 526790681

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

• Language: Slovenian
• Keywords: pes, amputacija, protetika, biomehanika, porazdelitev teže