Facial Plastic and Reconstructive Surgery Practice Questions

Q: A 28-year-old woman undergoes open rhinoplasty. On table, after osteotomies, significant asymmetry is noted with deviation of nasal bones to the right. Analysis reveals the right osteotomy is more lateral than the left. What is the best explanation for the persistent deviation?

Asymmetric osteotomy created unequal bone segments. ***Asymmetric osteotomy created unequal bone segments*** - Placing the **right lateral osteotomy** more laterally than the left results in a wider right **nasal bone segment**, preventing the pyramid from shifting into a midline position. - This geometric imbalance causes the **nasal dorsum** to remain deviated toward the side with the larger bone segment, necessitating **revision osteotomy** for symmetry. *Postoperative edema causing temporary deviation* - While **edema** can mask underlying symmetry, it does not explain significant intraoperative deviation immediately following **osteotomies**. - Intraoperative asymmetry is typically **structural** rather than a result of soft tissue swelling occurring at that moment. *Incomplete mobilization of nasal bones due to retained periosteum* - **Periosteal attachments** can resist movement, but the scenario specifically identifies a **technical error** in the placement of the osteotomy lines. - Even if mobilized, the **unequal width** of the segments would still cause a structural deviation rather than simple stiffness. *Septal deviation pulling the dorsum to right* - A **deviated septum** can certainly cause nasal deviation, but the analysis in this case specifically links the issue to the **asymmetric osteotomy** placement. - The **"open-roof"** or lateral bone segments effectively determine the dorsal position; fixing the septum won't correct the asymmetry of **unequal nasal bones**.

Q: Why is the nasolabial flap preferred for reconstruction of lateral nasal wall defects?

It has axial blood supply from facial artery. ***It has axial blood supply from facial artery*** - The nasolabial flap is an **axial pattern flap** primarily supplied by the **angular artery**, which is a terminal branch of the **facial artery**. - This robust blood supply allows for reliable healing and the ability to design longer flaps to reach **lateral nasal wall** and **ala** defects. *It matches skin color and texture perfectly* - While it provides a **good aesthetic match** due to its proximity, the primary reason it is preferred surgically is its vascular reliability. - Differences in **sebaceous gland density** between the cheek and nose mean the match is excellent but rarely "perfect." *It is a random pattern flap with good reach* - This is incorrect because the nasolabial flap is categorized as an **axial flap**, not a **random pattern flap**. - **Random flaps** rely on the subdermal plexus, whereas axial flaps like this one have a named vessel providing superior perfusion. *It provides cartilage support* - The nasolabial flap is a **pedicled skin/subcutaneous flap** and does not inherently contain **cartilage**. - For full-thickness defects requiring structural support, a separate **cartilage graft** must be placed beneath the flap.

Q: Which artery is the primary blood supply to the paramedian forehead flap used in nasal reconstruction?

Supratrochlear artery. ***Supratrochlear artery*** - The **supratrochlear artery** is the primary blood supply for the **paramedian forehead flap**, originating as a terminal branch of the **ophthalmic artery**. - This artery consistently emerges from the **supraorbital rim** approximately **1.7–2.2 cm lateral** to the midline, allowing for a robust **axial-pattern flap**. *Superficial temporal artery* - This artery supplies the lateral aspect of the scalp and forehead but is not the pedicle for a **paramedian** flap. - It is commonly used for **temporoparietal fascia flaps** rather than central nasal reconstruction. *Supraorbital artery* - The **supraorbital artery** is located more laterally than the supratrochlear and is not the primary axial supply for the **paramedian** design. - While it provides collateral circulation to the forehead, it lacks the specific **medial positioning** required for the gold-standard nasal flap. *Angular artery* - The **angular artery** is the terminal branch of the **facial artery** and supplies the lateral nasal wall and medial canthus. - It is used in **nasolabial flaps** [1] for smaller nasal defects, but it does not supply the tissues of the forehead.

Q: Which technique of facial fracture treatment involves purely closed reduction?

Maxillo-mandibular fixation. **Explanation:** The management of facial fractures is broadly categorized into **Closed Reduction** (non-surgical manipulation without direct visualization of the bone) and **Open Reduction with Internal Fixation (ORIF)** (surgical exposure of the fracture site). **Why Maxillo-mandibular fixation (MMF) is correct:** MMF (also known as intermaxillary fixation) involves stabilizing the fracture by wiring the upper and lower teeth together using arch bars or eyelet wires. This technique relies on the patient’s own occlusion to align the bone fragments. Because the fracture site is not surgically opened and no hardware is placed directly onto the bone, it is considered a **purely closed reduction** technique. **Why the other options are incorrect:** * **A & B (Miniplates and Dynamic Compression Plating):** These are forms of **Rigid Internal Fixation**. They require a surgical incision to expose the bone and the application of screws and plates directly across the fracture line. * **D (Wire Osteosynthesis):** While an older technique, it involves drilling holes into the bone ends and "sewing" them together with stainless steel wire. This requires surgical exposure (Open Reduction). **Clinical Pearls for NEET-PG:** * **Gold Standard:** ORIF with miniplates is currently the gold standard for most displaced facial fractures as it allows for early mobilization. * **MMF Duration:** When used as primary treatment, MMF is typically maintained for 4–6 weeks. * **Gunning Splints:** Used for MMF in **edentulous** (toothless) patients. * **Indications for Closed Reduction:** Minimally displaced fractures, fractures in children (to avoid damaging permanent tooth buds), or when the patient is medically unfit for surgery.

Q: What is commonly referred to as a Tripod fracture?

Zygomatic fracture. A **Tripod fracture**, also known as a **Zygomaticomaxillary Complex (ZMC) fracture**, is one of the most common facial fractures encountered in clinical practice. It is called a "tripod" fracture because it involves the disruption of the three primary attachments of the zygoma to the rest of the facial skeleton. ### Why Zygomatic fracture is correct: The term refers to the separation of the zygomatic bone at its three major suture lines: 1. **Zygomaticofrontal suture** (superiorly) 2. **Zygomaticotemporal suture** (laterally at the zygomatic arch) 3. **Zygomaticomaxillary suture** (inferiorly, involving the infraorbital rim and the anterior/lateral walls of the maxillary sinus) *Note: Modern anatomy often refers to this as a "quadripod" fracture as it also involves the sphenozygomatic suture.* ### Why other options are incorrect: * **Maxillary fracture:** These are typically classified under the **Le Fort classification** (I, II, and III). While a ZMC fracture involves the maxilla, a pure maxillary fracture does not follow the tripod pattern. * **Mandibular fracture:** These are classified by anatomical location (symphysis, body, angle, ramus, condyle) and do not involve the zygomatic complex. * **Temporal fracture:** These involve the petrous or squamous portions of the temporal bone and are usually associated with base of skull trauma and hearing loss, not malar flattening. ### High-Yield Clinical Pearls for NEET-PG: * **Clinical Presentation:** Flattening of the cheek (malar prominence), infraorbital nerve anesthesia (numbness of the upper lip/cheek), and trismus (due to impingement on the coronoid process of the mandible). * **Radiology:** The **Water’s View** (occipitomental) is the best conventional X-ray to visualize ZMC fractures. Look for the "hanging drop" sign if the orbital floor is involved. * **Complication:** Diplopia may occur due to entrapment of the inferior rectus muscle or orbital fat.

Q: A patient presents with enophthalmos and periorbital ecchymosis after being hit by a ball. What is the most likely diagnosis?

Orbital blowout fracture. ***Orbital blowout fracture*** - The clinical presentation of **periorbital ecchymosis** (bruising around the eye) and **enophthalmos** (posterior displacement of the eyeball) following blunt trauma from an object like a ball is classic for an orbital blowout fracture. - This injury often involves the thin orbital floor, leading to herniation of orbital contents into the maxillary sinus and potential entrapment of the **inferior rectus muscle**, which can cause **diplopia** (double vision) on upward gaze. *Zygomatic fracture* - A zygomatic (cheekbone) fracture typically causes facial flattening, a palpable **step-off deformity** along the orbital rim, and numbness over the cheek due to **infraorbital nerve** injury. - While it can be associated with an orbital floor fracture, isolated **enophthalmos** is not its primary presenting sign; facial asymmetry is more prominent. *Nasal bone fracture* - This is the most common facial fracture and presents with localized pain, swelling, deformity of the nasal bridge, and **epistaxis** (nosebleed). - **Enophthalmos** is not a feature of an isolated nasal bone fracture, although periorbital ecchymosis can be present. *Le Fort I fracture* - This is a horizontal fracture of the maxilla, resulting in a **"floating palate"** where the entire upper dental arch is mobile. - It is characterized by **dental malocclusion** and does not typically cause the isolated orbital signs of **enophthalmos** seen in this case.

Q: Cosmetic reconstruction of this defect is best done at? (Recent NEET Pattern 2016-17)

6-10 years. ***6-10 years of age*** - Ear reconstruction for **microtia**, as seen in the image, is typically recommended between 6 and 10 years of age. This allows for sufficient growth of the **contralateral ear** to serve as a template and for the child's **rib cartilage** to be large enough for grafting. - At this age, children are also better able to **cooperate** with the multi-stage surgical process and are old enough to understand the procedure, which is crucial for emotional well-being.

Q: A nasal surgery was carried out with the incision shown in the image. What was the procedure likely carried out?

Open rhinoplasty. ***Open rhinoplasty*** - The image displays a **transcolumellar incision** (typically inverted V or W-shaped), which is the hallmark approach for **open rhinoplasty**. - This incision allows for direct visualization of the underlying nasal cartilages and bones, enabling precise reshaping of the nose. *Submucosal resection (SMR)* - SMR is a procedure to correct a **deviated nasal septum** by removing cartilage or bone from beneath the mucoperichondrial flaps. - It involves an **intranasal incision**, usually along the septal mucosa, not an external transcolumellar incision. *FESS (Functional Endoscopic Sinus Surgery)* - FESS is a minimally invasive procedure used to treat **chronic sinusitis** and other sinus conditions. - It is performed entirely **endoscopically through the nostrils**, with no external incisions on the nasal columella. *Caldwell-Luc's procedure* - This procedure accesses the **maxillary sinus** through an incision in the upper gum beneath the lip. - It is used for drainage of the maxillary sinus or removal of foreign bodies/tumors, and does not involve an external nasal incision.

Question 1

A 35-year-old woman underwent rhinoplasty 6 months ago and now presents with nasal valve collapse and breathing difficulty. Examination shows pinched nasal tip and alar retraction. Preoperative photos show she had thin skin and weak lower lateral cartilages. Evaluate the most likely cause and best preventive strategy.

Accepted Answer

Excessive cartilage resection; should have preserved structural support and used spreader grafts

Answer

Infection causing cartilage dissolution; prophylactic antibiotics would have prevented this

Answer

Keloid formation; preoperative steroid injection indicated

Answer

Normal healing process; no preventive strategy needed

Question 2

A 28-year-old woman undergoes open rhinoplasty. On table, after osteotomies, significant asymmetry is noted with deviation of nasal bones to the right. Analysis reveals the right osteotomy is more lateral than the left. What is the best explanation for the persistent deviation?

Accepted Answer

Asymmetric osteotomy created unequal bone segments

Answer

Postoperative edema causing temporary deviation

Answer

Incomplete mobilization of nasal bones due to retained periosteum

Answer

Septal deviation pulling the dorsum to right

Question 3

Why is the nasolabial flap preferred for reconstruction of lateral nasal wall defects?

Accepted Answer

It has axial blood supply from facial artery

Answer

It matches skin color and texture perfectly

Answer

It is a random pattern flap with good reach

Answer

It provides cartilage support

Question 4

Which artery is the primary blood supply to the paramedian forehead flap used in nasal reconstruction?

Accepted Answer

Supratrochlear artery

Answer

Superficial temporal artery

Answer

Supraorbital artery

Answer

Angular artery

Question 5

Le Fort II facial fracture implies which of the following?

Accepted Answer

Fracture running through the zygomatic process of the maxilla, floor of orbit, and root of nose on both sides

Answer

Fracture running through the alveolar ridge

Answer

Fracture running through the midline of the palate and zygomaticomaxillary suture

Answer

Fracture running through the zygomatic process of the maxilla, floor of orbit, and root of nose on one side only

Question 6

Which technique of facial fracture treatment involves purely closed reduction?

Accepted Answer

Maxillo-mandibular fixation

Answer

Application of miniplates

Answer

Dynamic compression plating

Answer

Use of wire osteosynthesis across fracture site

Question 7

What is commonly referred to as a Tripod fracture?

Accepted Answer

Zygomatic fracture

Answer

Maxillary fracture

Answer

Mandibular fracture

Answer

Temporal fracture

Question 8

A patient presents with enophthalmos and periorbital ecchymosis after being hit by a ball. What is the most likely diagnosis?

Accepted Answer

Orbital blowout fracture

Answer

Le Fort I fracture

Answer

Zygomatic fracture

Answer

Nasal bone fracture

Question 9

Cosmetic reconstruction of this defect is best done at? (Recent NEET Pattern 2016-17)

Accepted Answer

6-10 years

Answer

Birth to 2 years

Answer

3-5 years

Answer

After 12 years

Question 10

A nasal surgery was carried out with the incision shown in the image. What was the procedure likely carried out?

Accepted Answer

Open rhinoplasty

Answer

Submucosal resection (SMR)

Answer

FESS (Functional Endoscopic Sinus Surgery)

Answer

Caldwell-Luc's procedure

Facial Plastic and Reconstructive Surgery — MCQs

Facial Plastic and Reconstructive Surgery — MCQs

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