Study details outcomes for omocervical axial pattern flaps: full analysis

A new Journal of Small Animal Practice case series offers one of the more recent clinical looks at omocervical axial pattern flaps in companion animals, describing six cases, four dogs and two cats, managed from 2016 through 2024. The headline finding is clear: postoperative complications occurred in every case, yet most were minor and manageable without another surgery, and the flap still proved useful for closing defects in the orofacial, cervical, shoulder, and axillary regions. (pubmed.ncbi.nlm.nih.gov)

That matters because the omocervical flap is not a new concept, but published clinical outcome data remain limited. The technique traces back at least to classic canine work published in 1981, which described the omocervical, thoracodorsal, and deep circumflex iliac axial pattern flaps as options for restoring extensive cutaneous defects in the face, neck, shoulder, forelimb, axillary area, and thorax. In other words, surgeons have had an anatomic roadmap for decades, but modern case-based outcome reporting is still relatively sparse. (pubmed.ncbi.nlm.nih.gov)

In the new report, indications included closure after mass removal in three of six cases, plus one case each involving scar revision, chronic inflammation, and trauma. Minor complications, reported in 83% of patients, included skin irritation, hematoma, dehiscence, infection, and necrosis. One patient, representing 16% of the series, had major flap necrosis that required revision surgery. Even with that complication profile, the authors say the flap was effective overall for selected regional defects. (pubmed.ncbi.nlm.nih.gov)

The broader reconstructive literature helps put those findings in context. Axial pattern flaps are generally favored over random subdermal plexus flaps when anatomy allows because they incorporate a direct cutaneous vessel and therefore offer more reliable perfusion to distal tissue. But reliability is not the same as complication-free healing, especially in regions with tension, motion, contamination, prior surgery, or compromised local tissue beds. That pattern is consistent with the new omocervical series, where complication management appears to have been part of the expected postoperative course rather than proof of outright failure. Comparable feline data point in the same direction: in a retrospective Veterinary Surgery series of 14 cats treated with lateral caudal axial pattern flaps for caudodorsal trunk defects, postoperative complications occurred in 50%, most commonly partial flap dehiscence, seroma, and edema, yet 57.1% healed without complications and the remainder had only minor complications. Most of those feline flaps were used after tumor excision, and the authors concluded the technique remained a reliable and effective option for that region. (pubmed.ncbi.nlm.nih.gov)

One notable adjacent development is the growing interest in perfusion imaging. A 2024 Veterinary Surgery study evaluated near-infrared fluorescence angiography with indocyanine green for canine axial pattern flaps, including omocervical flaps, and found the technology could visualize vascular patterns and influence flap-dimension planning. However, surgeon agreement on fluorescence grading for omocervical flaps was only intermediate, suggesting the tool is promising but not yet a simple fix for planning uncertainty in this flap type. (pubmed.ncbi.nlm.nih.gov)

Why it matters: For veterinary surgeons and referral teams, the practical takeaway is to treat omocervical axial pattern flaps as a useful option with a high likelihood of postoperative management needs. That affects informed consent, bandage and drain planning, recheck scheduling, and conversations with pet parents about what counts as an expected bump in healing versus a true reconstructive setback. It also reinforces the value of careful defect selection: the flap may still be worth choosing in the right anatomic region, even when the odds of minor complications are high. The feline lateral caudal flap series adds a useful comparative reminder that this tradeoff is not unique to omocervical reconstruction; across axial pattern flap techniques, acceptable outcomes often coexist with frequent but manageable short-term complications. (pubmed.ncbi.nlm.nih.gov)

For general practitioners, the study is also a reminder that these cases may look worse before they look better. Minor dehiscence, localized irritation, or limited necrosis after referral surgery may not automatically signal flap failure, but they do require close communication with the operating team. In oncology and trauma settings especially, where defects after mass removal or tissue injury can be difficult to close, having realistic expectations around complication management may support earlier referral and better continuity of care. That message is reinforced by feline reconstructive data, where most lateral caudal axial pattern flaps used after tumor excision still achieved acceptable healing despite a 50% postoperative complication rate. (pubmed.ncbi.nlm.nih.gov)

What to watch: The next step is better evidence, ideally larger multicenter datasets that compare omocervical flaps with other reconstructive options, define predictors of major necrosis, and test whether intraoperative perfusion imaging can improve planning and outcomes in real-world patients. More cross-species reporting would also help clinicians judge whether complication patterns seen in small omocervical series are unusual or simply part of the expected performance of axial pattern flaps in practice. (pubmed.ncbi.nlm.nih.gov)