Research AppraisalSystematic Review

Preservation rhinoplasty versus conventional structural reduction: a systematic review of aesthetic, functional, and patient-reported outcomes

Oral and maxillofacial surgeryZadeh, Amin Zaki, Naeini, Mina, Geranfar, Amirreza et al.2 May 2026DOI

Clinical Snapshot

75CEBM
Evidence: ModerateSystematic Review

PICO Framework

P — PopulationPatients undergoing rhinoplasty for dorsal hump reduction
I — InterventionDorsal preservation rhinoplasty
C — ComparatorConventional structural dorsal hump reduction
O — OutcomesAesthetic outcomes, functional outcomes (airway metrics), patient-reported outcomes (ROE, NOSE, SCHNOS), complications, and revision rates

Bottom Line

This systematic review of 20 studies suggests that dorsal preservation rhinoplasty achieves comparable aesthetic and functional outcomes to conventional structural reduction techniques. Patient-reported outcomes using validated instruments (ROE, NOSE, SCHNOS) showed consistent improvement in both approaches. Complication and revision rates were low (2-4%) across techniques. However, the evidence base is limited by heterogeneous study designs, minimal objective airway assessment, and lack of standardized outcome reporting. While preservation techniques may offer theoretical advantages in maintaining nasal anatomy, the current evidence does not demonstrate clear superiority over conventional approaches. Surgeons should select techniques based on patient anatomy, surgical experience, and individual case requirements rather than assuming one approach is universally superior.

Evidence: Moderate

Key Findings

  • P Value: Not reported

  • Effect Size: Not specified in abstract

  • Primary Outcome: Equivalent aesthetic and functional outcomes between preservation and conventional rhinoplasty

  • Nnt Or Sensitivity: Pooled complication and revision rates 2-4%

  • Confidence Interval: Not reported

Clinical Application

Requires specialized surgical training in preservation techniques Relevant to plastic surgeons and ENT surgeons performing rhinoplasty; technique selection should consider surgeon experience and patient anatomy Patients requiring dorsal hump reduction rhinoplasty with appropriate anatomical selection

Abstract

BACKGROUND: Dorsal preservation rhinoplasty aims to maintain the native dorsal roof while achieving aesthetic and functional goals comparable to structural dorsal hump reduction. This systematic review evaluates comparative outcomes, patient-reported measures, and complication patterns across techniques. METHODS: A systematic search of PubMed, Embase, Scopus, Web of Science, and Cochrane CENTRAL was performed from inception to November 1, 2025. Eligible studies included randomized trials, comparative cohorts, and case series with ≥ 10 patients and ≥ 6 months of follow-up. Two reviewers independently screened studies, extracted data, and assessed risk of bias using RoB 2 and ROBINS-I. Outcomes included validated PROs, objective airway metrics, aesthetic assessments, and complications. RESULTS: From 487 records identified, 20 studies met inclusion criteria. Across randomized and nonrandomized comparative studies, dorsal preservation demonstrated aesthetic and functional results equivalent to structural dorsal hump reduction at 6-12 months. Patient-reported improvement (ROE, NOSE, SCHNOS) was consistently favorable in both groups. The only comparative objective airway study showed no significant differences in cross-sectional area or nasal volume. Complication and revision rates were low overall, with pooled recurrence and revision typically between 2-4%. CONCLUSION: Current evidence indicates that dorsal preservation rhinoplasty provides outcomes comparable to structural reduction in appropriately selected patients. Standardized reporting and more objective physiologic evaluations are needed.

References

  1. 1.Zadeh, A. Z., Naeini, M., Geranfar, A., Keshtan, S. B., Padash, Y., Haddadian, M., Barghani, M. R. R., Adinevand, E., & Jahromi, M. K. (2026). Preservation rhinoplasty versus conventional structural reduction: a systematic review of aesthetic, functional, and patient-reported outcomes. Oral and Maxillofacial Surgery. https://doi.org/10.1007/s00266-025-05090-6
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