A recent Plastic Surgery digest,
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Study Type: Preclinical animal study (rabbit subcutaneous model, n=30)

Key Question: Does polycaprolactone (PCL) filler induce sustained, structurally normal collagen regeneration over a two-year period?

Key Findings:

• Collagen fibre network density increased by 79.2% at 12 months versus tissue without implant, then gradually declined thereafter.
• Neocollagenesis and improved fibre alignment/maturation were sustained throughout the full 24-month observation period.
• Regenerated collagen architecture was not significantly different from native tissue, indicating physiologically integrated remodelling rather than fibrotic scarring.

Clinical Relevance: Provides mechanistic, quantitative evidence supporting the durability and biological plausibility of PCL fillers (e.g., Ellansé) used in UK aesthetic practice, informing patient counselling on longevity and expected collagen-stimulating effects beyond simple volumisation.

Limitations: Findings derive from a rabbit model and may not directly translate to human facial tissue behaviour, ageing skin, or clinical outcomes.

Study Type: Systematic review and meta-analysis

Key Question: Does prophylactic botulinum toxin type A (BoNT-A) reduce postoperative scarring, and does timing, dose density, or anatomic site modify its effect?

Key Findings:

• Across 17 studies (656 sites, 456 patients), BoNT-A improved objective scar width (SMD −0.924, moderate certainty) and clinician composite scores (SMD −0.864, low certainty).
• Exploratory analyses suggested delayed injection outperformed immediate injection (SMD −1.240 vs −0.559), though direct comparative timing studies were conflicting.
• Timing and anatomic site explained 81% of heterogeneity (P=.0008); effects were largest for chest scars, smallest for fine facial sites; dose escalation (4–10 U/cm) showed no added benefit.

Clinical Relevance: For UK plastic surgeons managing high-tension scars (e.g., sternotomy, trunk wounds) within resource-limited NHS aesthetic/scar clinics, this supports selective prophylactic BoNT-A use but highlights that optimal timing and site-specific protocols remain unresolved.

Limitations: Evidence certainty is low-to-very-low for clinician-rated and patient-reported outcomes, with substantial heterogeneity and reliance on study-level (not patient-level) timing data.

Study Type: Multicentre prospective observational study (uncontrolled)

Key Question: Does an Elastic Double Arch Model-guided technique (thin cortical costal cartilage alar arch reinforcement plus tip ligamentous reconstruction) improve aesthetic, functional, and dynamic outcomes in East Asian primary and revision rhinoplasty?

Key Findings:

• 198 patients analysed (72 primary, 126 revision); at 36 months, VAS-cosmetic rose from 5.02→8.40 (primary) and 4.87→8.20 (revision); FACE-Q rose from 42.5→84.2 and 40.2→81.5 respectively.
• Functional scores (NOSE, VAS-functional) also improved in both groups.
• Nasal tip mobility was preserved in primary cases and notably restored in revision cases, with low complication rates.

Clinical Relevance: Offers UK rhinoplasty surgeons managing East Asian or revision cases a structural technique combining projection/support with preserved tip dynamism, relevant given increasing case complexity and patient expectations in NHS/private aesthetic practice.

Limitations: No control or comparator group, limiting causal attribution of outcomes to the technique itself.

Study Type: Prospective randomised controlled trial (single-centre, blinded assessment)

Key Question: Does asymmetric let-down osteotomy in preservation rhinoplasty achieve better correction of severe nasal axis deviation than conventional structural rhinoplasty with spreader flap/graft dorsal reconstruction?

Key Findings:

• Asymmetric bone impaction achieved 90±5.67% axis correction at 12 months post-operatively.
• No statistically significant recurrence between 1- and 12-month follow-up (p>0.05), suggesting durable correction.
• Study group (asymmetric let-down) showed significantly superior correction versus control group undergoing conventional structural rhinoplasty (p<0.01).

Clinical Relevance: For UK rhinoplasty surgeons managing crooked nose deformity—a notoriously recurrence-prone problem—this offers a reproducible preservation-based technique that may reduce reliance on complex grafting and revision rates within NHS aesthetic/reconstructive services.

Limitations: Abstract lacks detail on blinding methodology, outcome measurement tool validity, and long-term follow-up beyond 12 months, limiting assessment of durability and reproducibility.

Study Type: Retrospective cohort study (microbiome analysis of explanted devices)

Key Question: Does implant plane (subpectoral vs subglandular) or incision site (periareolar, IMF, transaxillary) influence the long-term microbiome composition of breast implants?

Key Findings:

• No significant differences between subpectoral (n=336) and subglandular (n=53) implants in alpha diversity (Shannon 1.7 vs 1.7, padj=0.62), beta diversity (PERMANOVA padj=0.46), or dominant genera abundance.
• Periareolar incisions (n=45) showed higher microbial richness and distinct community composition versus IMF (n=308; Bray-Curtis padj=0.004).
• No significant difference between IMF and transaxillary incisions (padj=0.12).

Clinical Relevance: Challenges the assumption that subglandular placement drives higher capsular contracture rates via increased bacterial exposure, instead implicating incision route—relevant to UK surgeons counselling patients on augmentation technique and contracture risk.

Limitations: Retrospective design with unequal group sizes (particularly small subglandular and periareolar subgroups) limits causal inference regarding contracture risk.

Study Type: Scoping review (PRISMA-ScR methodology; 40 studies, predominantly cross-sectional)

Key Question: What does the current evidence base show about objective morphometric standards and subjective preferences that define an "ideal" breast aesthetic?

Key Findings:

• Seven overlapping evidence domains identified: anthropometric, morphometric, eye-tracking, gender-related, cultural/geographic, lay perspective, and physician perspective studies.
• Recurrent determinants of perceived attractiveness included breast-to-body proportionality, upper-to-lower pole ratio, lower-pole contour, projection, NAC position/areolar dimensions, and symmetry.
• No single breast morphology was consistently preferred across populations; only 22.5% of studies addressed specific surgical contexts (augmentation, reconstruction/BCT, reduction).

Clinical Relevance: Offers UK plastic surgeons a structured, evidence-based framework of recurring aesthetic domains to guide patient-centred consultations and standardise outcome assessment in breast surgery, an area with no current UK consensus tool.

Limitations: Heterogeneous methodologies, image stimuli, and rating scales across included studies limit direct comparability and generalisability, with minimal 3D or validated patient-reported outcome data.

Study Type: Case report

Key Question: Can a temporally based orbicularis oculi myocutaneous (OOMC) flap effectively correct recurrent cicatricial lower eyelid ectropion in a paediatric patient following failed excision(s) of a congenital melanocytic nevus?

Key Findings:

• A single paediatric case with post-excisional cicatricial ectropion (after 2 prior local excisions) underwent reconstruction with a temporally based OOMC flap providing an upward traction vector and muscular support.
• Postoperative course showed stable flap perfusion, successful correction of ectropion, and maintained eyelid margin position with satisfactory symmetry on follow-up.

Clinical Relevance: Offers UK plastic surgeons a technique option for reconstructing anterior/middle lamellar lower eyelid defects with cicatricial traction, particularly relevant to paediatric nevus excision and revision ectropion surgery where recurrence after simple excision is common.

Limitations: Single case report with no comparative data, limiting generalisability and evidence strength.

Study Type: Retrospective population-based cohort study (national administrative data analysis)

Key Question: How has the incidence, demographic profile, and outcome burden of lower limb necrotising fasciitis in England changed over a 20-year period (2002–2022)?

Key Findings:

• Incidence rose seven-fold over the study period (0.1 to 0.8 per 100,000), predominantly affecting patients over 40 years.
• Over one-third of cases occurred in the most deprived socioeconomic quintile; 55% of patients had severe comorbidities.
• Substantial morbidity/mortality: 17% underwent limb amputation; mortality was 12.6% at 30 days, 17.4% at 90 days, and 24% at 1 year.

Clinical Relevance: These findings highlight rising case burden and persistently high mortality/amputation rates for a condition requiring urgent MDT input (plastics, orthopaedics, critical care), with clear socioeconomic inequalities relevant to NHS resource planning and public health strategy.

Limitations: Reliance on ICD-10/OPCS-4 coded administrative data risks misclassification and cannot fully capture case severity, causative organisms, or reasons behind the observed incidence rise (true increase vs. improved coding/reporting).