Histo-morphological effects on equine synovium after arthroscopic synovectomy using two different motorized synovial resectors and two different intensities.
Abstract: The purpose of the study was to determine the histo-morphological effects on villous synovium after synovectomy using two different motorized synovial resectors and two different intensities ex-vivo. Thirty-three (n=33) equine metacarpophalangeal/metatarsophalangeal joints were used. Synovectomy was performed along the dorsomedial/dorsolateral synovium (n=66) using two motorized synovial resectors (aggressive full radius resector, AFRR, used at two intensities: single treatment, n= 24 vs. triple treatment, n= 21 vs. aggressive meniscus side cutter, AMSC, n=21). Arthroscopic images were evaluated blindly for resector type and intensity. Histological images were evaluated descriptive for synovial morphology and the extent of tissue loss using a microscopic scale. Scanning electron microscopy described the synovial morphology. The synovectomized areas were specific for each resector used and distinguishable from arthroscopic images. The AFRR demonstrated a clear demarcation between treated and non-treated areas and removed the stratum synoviale completely including parts of the underlying stratum fibrosum. In contrast, the AMSC showed less clear demarcation, villous scaffolds and no involvement of the stratum fibrosum. Triple intense treated AFFR samples resulted in significantly deeper lesions compared to single treatments (p=0.037) but could not be distinguished on arthroscopic images. The morphological effects on villous synovium differ according to the resector type used. The extent of synovial tissue loss cannot be estimated from arthroscopic images but histologically. The type and use of motorized synovial resector determines the morphological alterations of the treated synovium. Arthroscopic control is considered unsuitable to control synovectomy depth.
Copyright © 2023. Published by Elsevier Inc.
Publication Date: 2023-12-27 PubMed ID: 38157949DOI: 10.1016/j.jevs.2023.104988Google Scholar: Lookup
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- Journal Article
Summary
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The study aimed to evaluate the effects various resectors and intensities have on equine synovium post-synovectomy. It was found that the type and use of motorised synovial resector had varying impacts on the synovium morphology, and the level of synovial tissue loss could only be determined histologically.
Research Methodology
- The research utilized a total of 33 equine metacarpophalangeal/metatarsophalangeal joints.
- They conducted synovectomy (surgical removal of inflamed joint lining) on the dorsomedial/dorsolateral synovium using two types of motorized synovial resectors: aggressive full radius resector (AFRR) and aggressive meniscus side cutter (AMSC).
- They also altered the intensity levels at which the resectors were used for comparison.
- The resection results were evaluated through arthroscopic images and histological observations.
Findings
- The research found distinct differences in how the two resectors affected synovium.
- The AFRR, which provided a clear demarcation between treated and untouched areas, completely removed the stratum synoviale and portions of the underlying stratum fibrosum.
- On the other hand, the AMSC resulted in a less distinct demarcation, left behind villous scaffolds, and didn’t affect the stratum fibrosum.
- Triple intense treatment via AFRR resulted in significantly deeper lesions than single treatments.
- Such differences caused by varying intensity levels were not distinguished from arthroscopic images.
Conclusions
- Each of the resectors tested had distinct effects on the morphology of the villous synovium.
- The extent of synovial tissue loss could not be estimated from arthroscopic images, instead required histologic evaluations.
- The type and use of motorized resector played a pivotal role in shaping the morphological alterations on the treated synovium.
- The study concluded that arthroscopic control is unsuitable for controlling synovectomy depth, suggesting the need for more accurate measures.
Cite This Article
APA
Troillet A, Hildebrand J, Stoffel MH, Schwabe S, Winter K, Brehm W.
(2023).
Histo-morphological effects on equine synovium after arthroscopic synovectomy using two different motorized synovial resectors and two different intensities.
J Equine Vet Sci, 104988.
https://doi.org/10.1016/j.jevs.2023.104988 Publication
Researcher Affiliations
- Department for Horses, Faculty of Veterinary Medicine, University of Leipzig, An den Tierkliniken 21, Leipzig 04103, Germany. Electronic address: troillet@vetmed.uni-leipzig.de.
- Equine Clinic, VetSuisse Faculty, University of Berne, Länggassstrasse 124, Berne 3012, Switzerland.
- Institute for Veterinary Anatomy, VetSuisse Faculty, University of Berne, Länggassstrasse 120, Berne 3001, Switzerland.
- Institute for Veterinary Anatomy, VetSuisse Faculty, University of Berne, Länggassstrasse 120, Berne 3001, Switzerland.
- Institute of Anatomy, Medical Faculty, University of Leipzig, Liebigstrasse 12, Leipzig 04103, Germany.
- Department for Horses, Faculty of Veterinary Medicine, University of Leipzig, An den Tierkliniken 21, Leipzig 04103, Germany.
Conflict of Interest Statement
Declaration of Competing Interest None of the authors has any financial or personal relationships that could inappropriately influence or bias the content of the paper.
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