Right flank laparotomy omentopexy is the standard open surgical approach for left displaced abomasum (LDA), performed with the cow standing via a right paralumbar fossa incision using an inverted-L block with 100 mL of 2% procaine. The abomasum is repositioned from the left to the right ventral abdomen, and omentopexy is performed approximately 4–6 cm caudal to the pylorus before routine closure.Journal of the…
Left flank laparotomy omentopexy uses the same standing approach but through the left paralumbar fossa. Both right and left flank laparotomy techniques produce a comparable peritoneal inflammatory response, with peritoneal fluid leukocyte counts rising to a median of 13.1 G/L (right flank) and 13.6 G/L (left flank) on day 1 after surgery — significantly lower than the 33.7 G/L seen after laparoscopic abomasopexy.Veterinary Reco… Both laparotomy approaches also cause an increase in blood and peritoneal fluid creatine kinase on day 1 postoperatively, whereas laparoscopy elevates peritoneal fluid creatine kinase only.Veterinary Reco…
The primary indication for right flank laparotomy omentopexy is LDA requiring open surgical correction, particularly when visualization of the abdominal cavity is needed, when concurrent disease requires manual exploration, or when percutaneous techniques are contraindicated.Frontiers in Ve… Percutaneous methods such as the blind-stitch and toggle-pin carry a high risk of complications including localized peritonitis, adhesions, and incorrect fixation, which may necessitate salvage right flank laparotomy omentopexy.Frontiers in Ve… The total cost of a failed blind-stitch followed by laparotomic rescue has been documented at 897 € for the second intervention alone, with associated lost milk revenue of 4,168 €.Frontiers in Ve…
Rolling followed by immediate right flank omentopexy is an accepted approach when the LDA is difficult to correct from the right side alone. Rolling induces right-sided abomasal displacement in 44% of cases, with the abomasum returning to a normal position in 54.1% of cases after rolling.Journal of Dair… Adverse events directly attributable to rolling include mesenteric root volvulus (3/268 cows), cecocolic volvulus (2/268), torsion (1/268), and uterine torsion (2/10 pregnant cows).Journal of Dair… Rolling as a standalone non-surgical treatment carries a low success and high relapse rate.The Veterinary…
Pyloro-omentopexy via right flank laparotomy reduces LDA recurrence compared to standard omentopexy alone. Omentopexy alone carries a 14% LDA recurrence rate, while pyloro-omentopexy carries a 0% recurrence rate; herd longevity (median 566 days in herd, range 24–1,838 days) and cull rates do not differ between the two techniques.Journal of the…
Postoperative abomasal emptying is slower after right flank laparotomy omentopexy than after laparoscopic abomasopexy. Mean time to maximal serum D-xylose concentration (T-max model) is 264 ± 94 minutes after right flank omentopexy versus 192 ± 51 minutes after laparoscopic abomasopexy, and rumen contraction rate and milk yield return faster after laparoscopy in the immediate postoperative period, though overall milk yield does not differ between techniques.Journal of the… Survival rate at 30 days is similar between laparoscopic and laparotomic approaches, with approximately 11% loss in both groups.Acta Veterinari…
In beef calves with LDA, right paramedian abomasopexy in dorsal recumbency is preferred over flank omentopexy because the omentum is thinner and more fragile in calves, making direct abomasopexy to the body wall more reliable.Journal of Vete… Rolling alone is not curative in calves and is associated with mesenteric volvulus; the abomasum redisplaced in 3 of 4 calves treated by rolling alone within 1 hour to 6 days.Journal of Vete…
Analgesia protocol for right flank laparotomy should include preoperative flunixin meglumine and consideration of dorsolumbar epidural anesthesia in addition to standard inverted-L block, as this combination reduces postoperative serum cortisol concentrations compared to inverted-L block alone.Journal of the… Postoperative flunixin meglumine at 1.1 mg/kg or 2.2 mg/kg IV once daily for 3 days does not significantly affect eating or rumination variables after omentopexy; normalization of these variables is attributable to surgical correction of the LDA itself.Schweizer Archi…
| Technique | Approach | Peritoneal Leukocytes Day 1 | Abomasal Emptying T-max | LDA Recurrence | Key Caveat |
|---|---|---|---|---|---|
| Right flank laparotomy omentopexy | Standing, right paralumbar fossa | 13.1 G/L (median)Veterinary Reco… | 264 ± 94 minJournal of the… | 14%Journal of the… | Standard open technique; pyloro-omentopexy reduces recurrence to 0%Journal of the… |
| Left flank laparotomy omentopexy | Standing, left paralumbar fossa | 13.6 G/L (median)Veterinary Reco… | Not reported | Not reported | Comparable inflammatory response to right flankVeterinary Reco… |
| Laparoscopic abomasopexy | Standing + dorsal recumbency | 33.7 G/L (median)Veterinary Reco… | 192 ± 51 minJournal of the… | Not reported | Faster emptying; higher peritoneal inflammation; no antibiotics required in uncomplicated casesJournal of Dair… |
| Right paramedian abomasopexy (calves) | Dorsal recumbency | Not reported | Not reported | 0/4 after surgeryJournal of Vete… | Preferred in calves due to fragile omentum; rolling alone not curativeJournal of Vete… |
Would you like to review the specific anesthesia protocols — including epidural technique and flunixin meglumine dosing — for right flank laparotomy in adult dairy cows?