Deep Plane Facelift Complications: Rates, Risks and What to Watch For

Complication Rates: Deep Plane Facelift Overview

Hematoma: Still the Most Common Serious Complication

Hematoma — a collection of blood beneath the skin flap — is the most frequently reported significant complication¹ across all facelift techniques⁴, including deep plane. Published rates for deep plane are approximately 1–5%.

The deep plane dissection itself does not fundamentally change the hematoma risk mechanism. Risk factors are the same as for all facelift types: male sex, uncontrolled hypertension,⁵ blood-thinning medications or supplements not stopped before surgery, smoking, and post-operative vomiting (straining increases blood pressure). Most hematomas present within the first 6–24 hours after surgery.

Signs requiring prompt contact with your surgeon: rapidly increasing swelling on one side, tightness that is worsening rather than stable, skin discolouration over the swelling, or disproportionate pain. Hematomas identified promptly are drained surgically and do not cause lasting harm.

Nerve Injury: Understanding the Anatomy

The facial nerve (cranial nerve VII) controls facial movement. Deep plane facelift involves dissection at a tissue level closer to the facial nerve branches than superficial SMAS techniques. This is the specific technical aspect that makes deep plane more technique-dependent — and why surgeon experience matters more for this procedure than for less complex techniques.

What the Deep Plane Actually Involves Anatomically

In deep plane facelift, the dissection takes place below the SMAS layer, at the level of the deep plane³ — beneath which the facial nerve branches travel. The surgeon releases the retaining ligaments (zygomatic, masseteric) that hold facial tissues in position. This requires precise knowledge of where the facial nerve branches are and the ability to work safely at this depth.

Experienced deep plane surgeons do this by working in the correct sub-SMAS plane, where the facial nerve lies predictably and can be avoided. The risk increases substantially when the plane of dissection is incorrect — either too superficial (not achieving the deep plane) or too deep (entering the region of the nerve).

Rates and Recovery

Temporary motor nerve weakness (most commonly the marginal mandibular branch, affecting the lower lip) occurs in approximately 0.5–2.6% of cases. This typically resolves within weeks to months in the majority of cases. Permanent motor nerve injury is rare in experienced hands — pooled rates are below 1%² in specialist series, though it is important to note that rates vary depending on how "permanent" is defined and the length of follow-up reported.

Skin Loss (Necrosis)

The elevated skin flap in deep plane facelift requires an intact blood supply to survive. Factors that compromise this supply — particularly smoking — significantly increase the risk of skin necrosis (skin loss at the flap edges). The mechanism is the same as in SMAS facelift, though some surgeons argue that deep plane's inherent tension reduction on the skin (because tension is transferred to the deeper tissues) may slightly reduce this risk compared to skin-based techniques.

Rates are approximately 1% in published series, with the large majority of cases associated with smoking or highly elevated blood pressure. Stopping smoking at least 4 weeks before surgery (ideally 6–8 weeks) is the most important preventive step.

Deep Plane vs. SMAS Facelift: How Do the Risks Compare?

This is the question many patients considering deep plane surgery want answered. The honest evidence-based answer:

The overall complication profiles are similar between experienced surgeons performing each technique. The important difference is that deep plane is more technique-dependent — risk is more sensitive to surgeon experience and anatomical knowledge. A poorly performed deep plane carries meaningfully higher nerve injury risk than a well-performed SMAS; a well-performed deep plane by a specialist has a similar risk profile to SMAS in experienced hands.

Warning Signs After Deep Plane Facelift

The following are normal symptoms and do not require urgent contact:

• Widespread facial swelling and bruising — expected, peaks days 2–4
• Tightness and pressure across the face — normal healing sensation
• Numbness and altered sensation — expected, resolves over weeks to months
• Occasional shooting or tingling sensations — nerve regeneration
• Some asymmetry in swelling — one side often resolves faster

The following require prompt contact with your surgeon:

• Rapidly increasing asymmetric swelling on one side — possible hematoma
• Skin discolouration developing quickly — possible tissue perfusion concern
• Fever above 38°C (100.4°F) — possible infection
• Wound opening or discharge that looks infected
• Inability to fully close one eye — requires motor nerve assessment
• Progressive weakness affecting facial expression — beyond what was present at discharge

How Risks Are Minimised

The most important risk-reduction factors for deep plane facelift patients:

• Surgeon selection: Choose a surgeon with specific deep plane facelift training and a high volume of these procedures. Ask how many they perform annually and whether deep plane is their primary facelift technique.
• Stop smoking: At minimum 4 weeks before surgery; ideally permanently. This is the most impactful modifiable risk factor for skin necrosis.
• Blood pressure control: Hypertension significantly increases hematoma risk. Ensure blood pressure is well-controlled in the weeks leading up to surgery.
• Stop blood-thinning medications: Aspirin, NSAIDs, and supplements that affect coagulation should be stopped as directed by your surgeon.
• Choose an accredited facility: JCI or TEMOS accreditation means protocols for emergency management are in place.
• Follow post-operative instructions precisely: Head elevation, activity restrictions, and wound care all reduce complication risk.

For the full picture on facelift risks across techniques, see facelift risks and complications guide.

Questions to Ask Your Surgeon About Risk

Before committing to deep plane facelift, ask your surgeon these specific questions:

• "How many deep plane facelifts do you perform per year?" — Volume is a meaningful proxy for proficiency with this specific technique
• "What is your personal complication rate for hematoma and nerve injury?" — A transparent surgeon will share their data
• "What is your protocol if a hematoma or nerve issue develops?" — You want to know they have a clear plan, not an improvised response
• "What is your revision rate?" — This tells you about both complication management and aesthetic outcomes
• "Is your facility equipped to manage surgical emergencies?" — Important for outpatient settings

A surgeon who is uncomfortable answering these questions is not the right surgeon for a technique-dependent procedure like deep plane facelift.