Case 11 Ear Reconstruction



Dardan Beqiri and Albert S. Woo

Case 11 Ear Reconstruction

Case 11 A 70-year-old male presents with lesion of the left ear, which has been present for over a year.



11.1 Description




  • Fungating and ulcerative mass involving the upper two-thirds of the left ear, including the helix, scapha, and antihelix



  • Surrounding edema, induration, and discoloration of the skin



  • Lesion has high suspicion for malignancy



11.2 Work-Up



11.2.1 History




  • Length of time the lesion has been present



  • Associated symptoms: pain, itching, bleeding, and hyperkeratosis



  • History of sun exposure



  • Personal and family history of skin cancer



11.2.2 Physical Examination




  • Thorough examination of the ear, including size and shape of lesion



  • Characterize findings associated with skin lesion (if present): Size, color, shape of lesion, skin irregularity, and hyperkeratosis




    • Depth of lesion and likelihood for cartilaginous or full-thickness involvement.



  • Lymph node examination



  • Full body integument examination



11.2.3 Diagnostic Studies




  • If patient presents initially without resection, a biopsy should be performed at the time of evaluation to establish a diagnosis.



  • Full-thickness incisional versus excisional biopsies may be performed. Avoid shave biopsies.



  • When the likelihood of cancer is high, as in this case, take multiple biopsies along the periphery.



11.3 Patient Counseling




  • Attempts at reconstruction may result in ear deformities, including a smaller or less projecting ear



  • The poor blood supply of the auricular cartilage puts these cases at higher risk of infection, particularly chondritis



  • Patients must be made aware that with large malignant lesions, amputation may be a possibility



11.4 Treatment




  • For skin malignancies, consider Mohs surgery, if available (see Table 7.1)




    • Allows examination of complete surgical margins, resulting in highest cure rates



    • Board examiner may require that you excise it yourself



  • Excision (see Chapter 7 for margins required for different types of malignancies)



  • Reconstruction




    • Should be delayed until negative margins are confirmed on final pathology




      • Fresh frozen pathologic evaluation cannot ensure negative margins



    • Local wound care, Integra, or temporizing skin graft in interim



  • Antibiotic coverage




    • Sulfamylon (topical) and fluoroquinolones (systemic) have excellent cartilaginous penetration



11.4.1 Reconstructive Ladder




  • Primary closure +/– Tanzer’s excision patterns (Fig. 11-1)



  • Wedge resection: Defect <1.5cm



  • Skin grafts may be used for superficial defects




    • Usually harvested from contralateral posterior auricular ear



    • Skin graft cannot be placed on raw cartilage without overlying perichondrium



    • Exposed raw cartilage must be covered by flap or debrided



  • Helical rim advancement (Fig. 11-2)




    • Useful for defects of helical rim



    • Chondrocutaneous flaps are advanced into the defect



  • Antia-Buch flap (Fig. 11-3)




    • Useful for upper 1/3 helical defects



    • The base of the helix is advanced in V-Y fashion and coupled with helical rim advancement from below



    • May result in decrease in height of ear



  • Posterior auricular flap: Large flap of skin from behind the ear can be advanced to cover the posterior ear




    • Typically used in a staged fashion for initial coverage followed by additional release and further reconstruction, possibly with skin graft



  • Tubed pedicle flap from postauricular skin




    • Useful to reconstruct longer sections of missing helical rim



    • Must be divided in second stage



  • Banner flap: Skin flap based on anterosuperior auriculocephalic sulcus




    • Combine with contralateral auricular cartilage graft for larger (>2cm) defects



  • Chondrocutaneous transposition flaps: Often require grafting of donor site




    • Converse flap: Contralateral auricular cartilage graft tunneled under skin flap from mastoid, requires second stage (3 weeks) for division and inset



    • Orticochea procedure: Based laterally on helix



    • Davis flap: Based anteriorly on crus helicis, from conchal bowl



  • Temporoparietal fascia (TPF) flap




    • Thin flap of TPF may be harvested from scalp based on superficial temporal artery



    • Large flap (10×12 cm) may be elevated for complete coverage of the ear, if necessary



  • Total ear reconstruction (see Chapter 20)




    • Autologous rib cartilage framework covered with posterior auricular skin or TPF flap and skin graft



    • Medpor construct covered with TPF flap and skin graft



  • Complete amputation/avulsion: Replantation if viable blood supply is available (e.g., superficial temporal or posterior auricular artery)



  • External auditory canal




    • Maintenance of patency more important than choice of coverage



    • May use skin graft over vascularized bed



    • Requires use of stent or splint for 6 months

      Fig. 11.1 (a-d) Wedge resection and primary closure with excision of accessory triangles. (Source: Unit Defects. In: Day T, Farrior E, Frodel J et al., ed. Facial Plastic Surgery. The Essential Guide. Thieme; 2005.)
      Fig. 11.2 (a-d) Helical rim advancement. Incision is made in the scapha and a chondrocutaneous flap is advanced into the defect in the helical rim. (Source: Ears. In: Sherris D, Larrabee Jr W, ed. Principles of Facial Reconstruction. A Subunit Approach to Cutaneous Repair. 2nd Edition. Thieme; 2009.)
      Fig. 11.3 (a,b) Antia-Buch flap. The base of the helix is advanced posteriorly in a V-Y fashion.

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Jul 17, 2021 | Posted by in General Surgery | Comments Off on Case 11 Ear Reconstruction

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