Bilateral elbow surgery in dogs linked to higher complication rates: full analysis

A new retrospective study in the Journal of Small Animal Practice suggests that bilateral simultaneous surgery for humeral intracondylar fissures and humeral condylar fractures in dogs carries a meaningfully higher risk of postoperative complications than unilateral treatment. In a cohort of 75 dogs, the authors reported complication rates up to 2.22-fold higher with bilateral procedures, and suggested that prophylactic surgery on the opposite limb may be better deferred until clinical signs develop. (pubmed.ncbi.nlm.nih.gov)

The finding matters because humeral intracondylar fissure, historically also discussed under incomplete ossification of the humeral condyle, has long posed a management dilemma. Many affected dogs, especially spaniels and French bulldogs, have bilateral disease or occult fissures in the contralateral limb, raising the question of whether surgeons should stabilize both sides preemptively. CT-based work in predisposed breeds has shown that humeral intracondylar fissures and intracondylar sclerosis are common in the limb opposite a humeral condylar fracture, reinforcing why prophylactic treatment enters the conversation so often. (pubmed.ncbi.nlm.nih.gov)

That conversation has been shaped by a surgical literature that is useful, but not especially reassuring on complications. A 2021 JSAP report on fluoroscopically guided transcondylar screw placement for humeral intracondylar fissure found a 45% postoperative complication rate, with 15% of cases requiring revision surgery. A 2019 study of a medial approach with a cannulated drill system reported an overall complication rate of 57%, while a 2024 report found a lower total complication rate of 17.5% in 57 elbows, suggesting outcomes may vary by technique, case selection, and experience. Long-term data on a humeral intracondylar repair system have also shown lower major complication rates than some traditional screw-based series, underscoring that implant strategy remains an active area of refinement. (pubmed.ncbi.nlm.nih.gov)

The new bilateral-surgery study fits into that broader pattern by focusing less on implant choice and more on timing and case strategy. That is notable because recent breed-specific fracture studies have produced mixed messages on fixation details. In French bulldogs, one 2025 retrospective study of 43 unicondylar fractures found no evidence that screw/plate fixation was superior to screw/pin fixation, while other earlier studies associated some constructs, particularly transcondylar screw plus K-wire repair, with more major complications. A separate multicenter cohort in French bulldogs found fixation method did not significantly affect complication rate, which suggests that factors beyond hardware alone, including bilateral surgical burden, may be clinically important. (pubmed.ncbi.nlm.nih.gov)

Direct outside commentary on this specific new paper was limited in the materials available, but the surrounding expert literature points in the same direction: these are technically demanding procedures with a narrow margin for error, and the profession is still working out how aggressive prophylactic treatment should be. Educational and referral-center reviews continue to describe historically high complication rates for humeral intracondylar fissure surgery, even as newer implants and modified approaches aim to improve outcomes. That makes the paper’s practical message less about abandoning surgery and more about being more selective about when both sides are addressed at once. (veterinary-practice.com)

Why it matters: For veterinary professionals, this study may change how bilateral elbow disease is framed during referral, imaging workups, and consent discussions. If the contralateral limb has a fissure on CT but no clinical signs, the new data support a more conservative conversation about immediate prophylactic stabilization, especially in dogs already facing a demanding fracture repair on the affected side. That could influence anesthesia planning, perioperative risk assessment, rehabilitation timelines, costs for pet parents, and expectations around revision surgery. It also reinforces the value of careful contralateral imaging and individualized decision-making rather than defaulting to one-stage bilateral intervention. (pubmed.ncbi.nlm.nih.gov)

The study also arrives as breed-associated risk remains front of mind. French bulldogs have been reported to be substantially overrepresented for humeral condylar fractures, including medial fracture patterns, and contralateral fissures are common in both French bulldogs and spaniel breeds. In that context, the temptation to “fix both while you’re there” is understandable. But if bilateral simultaneous surgery independently raises complication risk, surgeons may need to weigh the theoretical preventive benefit of prophylactic repair against the very real morbidity attached to these procedures. (pubmed.ncbi.nlm.nih.gov)

What to watch: The next step is likely more granular work on case selection: which dogs with bilateral imaging changes truly benefit from early prophylactic repair, whether staged surgery lowers total morbidity without increasing fracture risk in the opposite limb, and whether newer fixation systems can narrow the complication gap seen with bilateral treatment. Breed-specific analyses, especially in French bulldogs and spaniels, will be worth watching, as will any prospective studies that compare simultaneous versus staged approaches directly. (pubmed.ncbi.nlm.nih.gov)