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Complex ear lacerations involve irregular tissue injury or loss, exposed cartilage, or extension into the external auditory canal and commonly present in emergency and primary care settings. This course explores the unique management challenges posed by complex ear lacerations, given the ear’s intricate surface anatomy, tenuous cartilage blood supply, and functional and cosmetic importance, including successful repair, which requires a detailed understanding of auricular anatomy, vascular supply, and innervation, as well as timely decision-making regarding primary closure, delayed repair, or specialist referral. This activity reviews the evaluation of ear injuries, the selection of appropriate reconstructive techniques, when subspecialty consultation is warranted, and the prevention of complex ear laceration complications, such as infection, chondritis, hematoma formation, necrosis, and long-term deformity. Participants will also gain an understanding of auricular anatomy, indications for repair versus referral, anesthesia techniques, layered closure principles, and post repair management. This activity for healthcare professionals is designed to enhance the learner's competence in performing safe and effective repairs, recognizing high-risk injuries, preventing complications, optimizing functional and cosmetic outcomes, and implementing an appropriate interprofessional approach when managing cases of auricular trauma. Objectives: Identify key features of complex ear lacerations. Differentiate complex ear injuries appropriate for primary repair from those requiring delayed closure. Apply layered repair principles to achieve proper cartilage alignment while preserving cosmesis and function. Apply interprofessional team strategies to improve care coordination and outcomes in the management of complex ear lacerations. Access free multiple choice questions on this topic.

Complex ear lacerations are those that present with irregular tissue injury or loss, exposure of underlying cartilage, or involvement of the external auditory canal. These are often seen in various settings, including the emergency department and primary care.  The ear presents a unique challenge due to its intricate surface anatomy, composition, and function. The ears are particularly susceptible to lacerations, avulsions, and blunt trauma because they are positioned prominently over bony surfaces. Additionally, the pinna's unique composition and relatively tenuous blood supply pose specific challenges and considerations for ear laceration repair.

As with all lacerations, potential complications include scarring, infection, pain, and the need for additional repair. Chondritis and hematoma formation are complications specific to ear lacerations. Patients should be reevaluated 24 to 48 hours after the repair to assess for the development of these complications. These should be addressed immediately with medications or drainage and bolstering, respectively. Pseudomonas aeruginosa causes the vast majority of chondritis and should be treated with ciprofloxacin because of its excellent cartilage penetration; however, patients should be appropriately counseled on potential adverse effects, eg, tendon rupture.[19][20] Lacerations of the external auditory canal put the patient at risk for canal stenosis, conductive hearing loss, and acute otitis externa.

While ear lacerations may appear simple, the ear's unique anatomy and relative hypovascularity pose several challenges that the clinician must be familiar with. Thus, when patients present to the emergency department, having a very low threshold for consulting a plastic surgeon or an otolaryngologist is essential. The emergency department physician or mid-level provider may irrigate the wound and confirm tetanus status, but if there is any question about the wound's severity or the potential need for staged procedures, the wound should not be closed until evaluated by the specialist. A poorly repaired ear laceration can lead to hematoma formation, nerve damage, flap necrosis, and asymmetry or deformity that may be irreversible.[21][3][22] High-quality care relies on coordinated interprofessional practice. Physicians, general practitioners, and advanced practitioners must assess injury severity, select evidence-based repair techniques, and determine the need for referral. Nurses support wound preparation, patient education, pressure dressings, and early monitoring of complications. Pharmacists contribute by advising on appropriate antimicrobial use and counseling on medication risks. Additionally, effective interprofessional communication and coordinated teamwork have been shown to improve patient safety and clinical outcomes in the emergency care setting.[23] The emergency department depends on individuals with specialized skills and specific roles, which require collaboration. Managing complex ear lacerations requires teamwork among emergency clinicians, nurses, pharmacists, and consultants. Clear communication and timely consultation ensure appropriate management regarding wound assessment, antibiotic selection, and optimized closure technique.