Matz et al: Ex vivo comparison of different thoracoabdominal stapler sizes for typhlectomy in canine cadavers
Veterinary Surgery 4, 2022

🔍 Key Findings

• No significant difference in initial leak pressure (ILP) among TA 30 V3 2.5 mm, TA 60 3.5 mm, and TA 60 4.8 mm stapler sizes (P = .78).
• All stapler types exceeded the physiological intraluminal pressure threshold (~25 mmHg), suggesting acceptable leak resistance.
• Mean ILPs: TA 30 V3 (181.5 mmHg), TA 60 3.5 mm (112 mmHg), TA 60 4.8 mm (77.2 mmHg).
• Leakage occurred at the staple line in 23 of 24 specimens; only one had ileal wall rupture.
• No correlation found between ILP and cadaver weight, cecal wall thickness, or cecal length.
• Cecal wall thickness averaged 4.9 mm, yet staple heights ranged only from 1.0–2.0 mm.
• One specimen in each TA 60 group leaked near or below physiologic pressures, suggesting rare outliers.
• Study supports clinical viability of all tested stapler sizes for canine typhlectomy, but highlights need for in vivo data on healing and complications.