Abstract
Purpose
Gastrocnemius flaps provide reliable reconstructive solutions to soft-tissue loss of the knee and proximal tibia following orthopedic procedures. While this technique has been used and studied, little is known about its prophylactic application. Single-stage and delayed approaches were compared with respect to the timing of débridement, complications, and relationship between microorganisms and complications.
Methods
Gastrocnemius flaps for soft-tissue defects of the knee joint were retrospectively reviewed. Success of the flap procedure was defined as a healed soft-tissue envelope, no evidence of infection, a good blood supply to the flap, and adherence of the flap to its bed. Independent sample t test was used to compare the corresponding parameters (level of statistical significance was 0.05).
Results
Of 43 flaps (43 patients), 18 were performed during a single-stage procedure along with the orthopedic procedure and 25 were delayed. Success of the single-stage (100%) and delayed flaps (88%) was not significantly different (p = 0.083). Complication rate did not differ significantly for single-stage (11%) and delayed flaps (24%) (p = 0.272). We were unable to establish a relationship between complications and microorganisms.
Conclusion
Results indicate both approaches are reliable. Single-stage gastrocnemius flaps may eliminate the need for a second surgery.
Level of Evidence
Level III (Therapeutic, Retrospective cohort)
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Availability of data and material
Data available upon request.
Code availability
Not applicable.
References
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The authors thank Alvien Lee and Amanda E. Chase, MA, for their invaluable assistance with the manuscript.
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All authors contributed to the study conception and/or design. Data collection and analysis were performed by VH. The first draft of the manuscript was written by VH, and critical revisions were made to improve intellectual content by the other three authors. All authors commented on previous versions of the manuscript as well as read and approved the final manuscript.
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JDC is a consultant for Bonesupport, Smith + Nephew, and Zimmer Biomet; receives fellowship support from Biocomposites; and her spouse receives royalties from University of Florida. The following organizations supported the institution of JDC and CJD: Biocomposites, DePuy Synthes Companies, MHE Coalition, Orthofix, OrthoPediatrics, Pega Medical, Smith + Nephew, Stryker, and Zimmer Biomet. VH and HMA have nothing to disclose. CJD has nothing additional to disclose.
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The study was conducted in accordance with the ethical standards of the institutional review board, with the 1964 Helsinki Declaration and its later amendments, and with current national laws. An official exemption letter was obtained from our organization’s institutional review board. For this retrospective study, formal consent was not required.
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Hambardzumyan, V., Deter, C.J., Alrabai, H.M. et al. Comparison of single-stage and delayed gastrocnemius flap procedures for soft-tissue defects of the knee and proximal tibia. Eur J Orthop Surg Traumatol 32, 1081–1087 (2022). https://doi.org/10.1007/s00590-021-03058-1
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DOI: https://doi.org/10.1007/s00590-021-03058-1