Radial head subluxation in a chondrodystrophic cat: aetiology, surgical treatment and outcome

Katharina Lunde; Sorrel J Langley-Hobbs

doi:10.1177/20551169251366438

Radial head subluxation in a chondrodystrophic cat: aetiology, surgical treatment and outcome

Katharina Lunde^*, Sorrel J Langley-Hobbs

^*Corresponding author for this work

Bristol Veterinary School

Research output: Contribution to journal › Article (Academic Journal) › peer-review

Abstract

Case summary: A 10-month-old male neutered Dwelf cat with bilateral thoracic angular limb deformity secondary to chondrodystrophism presented with an acute onset of left thoracic lameness due to elbow subluxation and radial head displacement. Financial restrictions limited treatment to a single surgical procedure consisting of a left ulnar osteotomy, radioulnar polypropylene toggle placement and two temporary radioulnar transosseous K-wires. The lameness resolved but a degree of radial head subluxation persisted, radiographically similar in degree to the contralateral limb. Relevance and novel information: Chondrodystrophism is not common in cats. Inbreeding and chondrodystrophism is likely to result in the diagnosis of musculoskeletal diseases that have not previously been reported in this species. To the authors’ knowledge, this is the first case report of a developmental radial head subluxation in a chondrodystrophic cat.

Original language	English
Article number	20551169251366438
Number of pages	2
Journal	Journal of Feline Medicine and Surgery Open Reports
Volume	11
Issue number	2
DOIs	https://doi.org/10.1177/20551169251366438
Publication status	E-pub ahead of print - 19 Sept 2025

Bibliographical note

Publisher Copyright:
© The Author(s) 2025. This article is distributed under the terms of the Creative Commons Attribution 4.0 License (https://creativecommons.org/licenses/by/4.0/) which permits any use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).

Keywords

orthopaedic surgery
chondrodystrophy
ulnar osteotomy
radial head subluxation
Munchkin
Prolene toggle
Sphynx
Angular limb deformity
Dwelf
American Curl

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title = "Radial head subluxation in a chondrodystrophic cat: aetiology, surgical treatment and outcome",

abstract = "Case summary: A 10-month-old male neutered Dwelf cat with bilateral thoracic angular limb deformity secondary to chondrodystrophism presented with an acute onset of left thoracic lameness due to elbow subluxation and radial head displacement. Financial restrictions limited treatment to a single surgical procedure consisting of a left ulnar osteotomy, radioulnar polypropylene toggle placement and two temporary radioulnar transosseous K-wires. The lameness resolved but a degree of radial head subluxation persisted, radiographically similar in degree to the contralateral limb. Relevance and novel information: Chondrodystrophism is not common in cats. Inbreeding and chondrodystrophism is likely to result in the diagnosis of musculoskeletal diseases that have not previously been reported in this species. To the authors{\textquoteright} knowledge, this is the first case report of a developmental radial head subluxation in a chondrodystrophic cat.",

keywords = "orthopaedic surgery, chondrodystrophy, ulnar osteotomy, radial head subluxation, Munchkin, Prolene toggle, Sphynx, Angular limb deformity, Dwelf, American Curl",

author = "Katharina Lunde and Langley-Hobbs, \{Sorrel J\}",

note = "Publisher Copyright: {\textcopyright} The Author(s) 2025. This article is distributed under the terms of the Creative Commons Attribution 4.0 License (https://creativecommons.org/licenses/by/4.0/) which permits any use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).",

year = "2025",

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T1 - Radial head subluxation in a chondrodystrophic cat

T2 - aetiology, surgical treatment and outcome

AU - Lunde, Katharina

AU - Langley-Hobbs, Sorrel J

N1 - Publisher Copyright: © The Author(s) 2025. This article is distributed under the terms of the Creative Commons Attribution 4.0 License (https://creativecommons.org/licenses/by/4.0/) which permits any use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).

PY - 2025/9/19

Y1 - 2025/9/19

N2 - Case summary: A 10-month-old male neutered Dwelf cat with bilateral thoracic angular limb deformity secondary to chondrodystrophism presented with an acute onset of left thoracic lameness due to elbow subluxation and radial head displacement. Financial restrictions limited treatment to a single surgical procedure consisting of a left ulnar osteotomy, radioulnar polypropylene toggle placement and two temporary radioulnar transosseous K-wires. The lameness resolved but a degree of radial head subluxation persisted, radiographically similar in degree to the contralateral limb. Relevance and novel information: Chondrodystrophism is not common in cats. Inbreeding and chondrodystrophism is likely to result in the diagnosis of musculoskeletal diseases that have not previously been reported in this species. To the authors’ knowledge, this is the first case report of a developmental radial head subluxation in a chondrodystrophic cat.

AB - Case summary: A 10-month-old male neutered Dwelf cat with bilateral thoracic angular limb deformity secondary to chondrodystrophism presented with an acute onset of left thoracic lameness due to elbow subluxation and radial head displacement. Financial restrictions limited treatment to a single surgical procedure consisting of a left ulnar osteotomy, radioulnar polypropylene toggle placement and two temporary radioulnar transosseous K-wires. The lameness resolved but a degree of radial head subluxation persisted, radiographically similar in degree to the contralateral limb. Relevance and novel information: Chondrodystrophism is not common in cats. Inbreeding and chondrodystrophism is likely to result in the diagnosis of musculoskeletal diseases that have not previously been reported in this species. To the authors’ knowledge, this is the first case report of a developmental radial head subluxation in a chondrodystrophic cat.

KW - orthopaedic surgery

KW - chondrodystrophy

KW - ulnar osteotomy

KW - radial head subluxation

KW - Munchkin

KW - Prolene toggle

KW - Sphynx

KW - Angular limb deformity

KW - Dwelf

KW - American Curl

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DO - 10.1177/20551169251366438

M3 - Article (Academic Journal)

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SN - 2055-1169

VL - 11

JO - Journal of Feline Medicine and Surgery Open Reports

JF - Journal of Feline Medicine and Surgery Open Reports

IS - 2

M1 - 20551169251366438

ER -

Radial head subluxation in a chondrodystrophic cat: aetiology, surgical treatment and outcome

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