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Patel NK, Tipps JA, Bartlett SP, Kovach SJ, Levin LS, Mendenhall SD. Expanding Indications of the Medial Femoral Condyle Free Flap: Systematic Review in Head and Neck Reconstruction. PLASTIC AND RECONSTRUCTIVE SURGERY-GLOBAL OPEN 2023; 11:e4925. [PMID: 37035122 PMCID: PMC10079347 DOI: 10.1097/gox.0000000000004925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Accepted: 02/14/2023] [Indexed: 04/11/2023]
Abstract
The medial femoral condyle free flap serves as an attractive reconstructive option for small- to intermediate-sized bony defects. It is commonly applied in the extremities with limited reports in the head and neck. Methods A systematic review of the literature was performed using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Results Seventeen articles met inclusion criteria, yielding 166 cases for analysis, with a majority of the cohort from a single study (n = 107; 64.4%). However, all included studies represented novel reconstructive sites and surgical indications. Flap components were described in 157 cases; periosteum was used only in four cases (2.5%), whereas all others are composed of cortical bone combined with periosteum, cancellous bone, and/or cartilage (97.5%). Additionally, a skin island was used in 43 cases (25.9%). Flap measurements were reported in 51 cases, averaging 4.5 ± 2.7 cm in length. Seven cases listed skin island dimensions, averaging 20.2 ± 12.8 cm2. The descending genicular artery was the primary pedicle employed (n = 162; 97.6%), while the superior medial genicular was used in the descending genicular artery's absence (n = 4; 2.4%). Descending genicular artery pedicle length from 15 reporting cases averaged 6.4 ± 1.2 cm. Successful reconstructions totaled 160 cases (96.4%). Recipient complications were seen in 16 cases (9.6%) with six constituting flap failures (3.6%). Donor site complications were minimal (n = 6; 3.6%); however, this included one major complication of femoral shaft fracture. Conclusion The medial femoral condyle free flap is an effective reconstructive option for the head and neck due to its versatile nature, low complication profile at both recipient and donor site, ease of harvest, and two-team approach.
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Affiliation(s)
- Niki K. Patel
- From the Division of Plastic, Reconstructive, and Oral Surgery, Children’s Hospital of Philadelphia, Philadelphia, Pa
| | - John A. Tipps
- From the Division of Plastic, Reconstructive, and Oral Surgery, Children’s Hospital of Philadelphia, Philadelphia, Pa
- Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pa
| | - Scott P. Bartlett
- From the Division of Plastic, Reconstructive, and Oral Surgery, Children’s Hospital of Philadelphia, Philadelphia, Pa
- Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pa
| | - Stephen J. Kovach
- Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pa
- Division of Plastic Surgery, Department of Surgery, Hospital of the University of Pennsylvania, Philadelphia, Pa
| | - L. Scott Levin
- Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pa
- Department of Orthopaedic Surgery, Hospital of the University of Pennsylvania, Philadelphia, Pa
| | - Shaun D. Mendenhall
- From the Division of Plastic, Reconstructive, and Oral Surgery, Children’s Hospital of Philadelphia, Philadelphia, Pa
- Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pa
- Division of Orthopaedic Surgery, Children’s Hospital of Philadelphia, Philadelphia, Pa
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Tsiklin IL, Shabunin AV, Kolsanov AV, Volova LT. In Vivo Bone Tissue Engineering Strategies: Advances and Prospects. Polymers (Basel) 2022; 14:polym14153222. [PMID: 35956735 PMCID: PMC9370883 DOI: 10.3390/polym14153222] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 07/25/2022] [Accepted: 08/04/2022] [Indexed: 12/12/2022] Open
Abstract
Reconstruction of critical-sized bone defects remains a tremendous challenge for surgeons worldwide. Despite the variety of surgical techniques, current clinical strategies for bone defect repair demonstrate significant limitations and drawbacks, including donor-site morbidity, poor anatomical match, insufficient bone volume, bone graft resorption, and rejection. Bone tissue engineering (BTE) has emerged as a novel approach to guided bone tissue regeneration. BTE focuses on in vitro manipulations with seed cells, growth factors and bioactive scaffolds using bioreactors. The successful clinical translation of BTE requires overcoming a number of significant challenges. Currently, insufficient vascularization is the critical limitation for viability of the bone tissue-engineered construct. Furthermore, efficacy and safety of the scaffolds cell-seeding and exogenous growth factors administration are still controversial. The in vivo bioreactor principle (IVB) is an exceptionally promising concept for the in vivo bone tissue regeneration in a predictable patient-specific manner. This concept is based on the self-regenerative capacity of the human body, and combines flap prefabrication and axial vascularization strategies. Multiple experimental studies on in vivo BTE strategies presented in this review demonstrate the efficacy of this approach. Routine clinical application of the in vivo bioreactor principle is the future direction of BTE; however, it requires further investigation for overcoming some significant limitations.
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Affiliation(s)
- Ilya L. Tsiklin
- Biotechnology Center “Biotech”, Samara State Medical University, 443079 Samara, Russia
- City Clinical Hospital Botkin, Moscow Healthcare Department, 125284 Moscow, Russia
- Correspondence: ; Tel.: +7-903-621-81-88
| | - Aleksey V. Shabunin
- City Clinical Hospital Botkin, Moscow Healthcare Department, 125284 Moscow, Russia
| | - Alexandr V. Kolsanov
- Biotechnology Center “Biotech”, Samara State Medical University, 443079 Samara, Russia
| | - Larisa T. Volova
- Biotechnology Center “Biotech”, Samara State Medical University, 443079 Samara, Russia
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Neuwirth M, Ziegler T, Benedikt S, Winter R, Kamolz LP, Schintler M, Rab M, Mueller-Eggenberger M, Mischitz M, Palle W, Hoenck K, Schoellnast H, Janek E, Borenich A, Buerger H. Donor site morbidity after the harvest of microvascular flaps from the medial and lateral femoral condyle region: Objective, radiologic, and patient-reported outcome of a multi-center trial. J Plast Reconstr Aesthet Surg 2021; 75:160-172. [PMID: 34635456 DOI: 10.1016/j.bjps.2021.08.028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 06/27/2021] [Accepted: 08/26/2021] [Indexed: 11/16/2022]
Abstract
BACKGROUND With the experience-based hypothesis of low donor site morbidity (DSM) for free flaps from the distal femur, this cohort study aimed to evaluate the DSM according to objective and reproducible criteria. METHODS One hundred and fifty-six patients who had a flap harvest from either the medial or lateral femoral condyle region between 2005 and 2017 were included. A retrospective chart review was performed for all patients. In total, 97 patients were available for a follow-up examination. Outcomes were assessed according to objective (Knee Society Score; Larson Knee Score; OAK Score; 0-100 points), patient-reported (IKDC Score; KOOS Score; 0-100 points), and radiologic criteria (Kellgren and Lawrence Score; MRI Osteoarthritis Knee Score). RESULTS The median follow-up time was 1,529 days (range: 248-4,810). The mean Knee Society Score (94.8 ± 10.1), Larson Knee Score (94.5 ± 10.1), and OAK Score (95.5 ± 6.6) showed nearly unimpaired knee function. The overall patient-reported DSM was low (IKDC Score: 86.7 ± 17.4; KOOS Score: 89.3 ± 17.1). Osteochondral (OC) flaps had a significantly higher DSM, regardless of the donor site. Bone flaps did not show any relevant radiologic morbidity in the Kellgren and Lawrence Score. Besides the procedure-associated cartilage lesions at the OC donor sites, MRI Osteoarthritis Knee Score did not show any significant presence of further knee pathologies in the bilateral MRI Scans. The obvious cartilage lesions did not have a relevant impact on the knee function of most patients. CONCLUSION The DSM for bone and soft-tissue flaps from the femoral condyle region is negligible. OC flaps are associated with a significantly higher DSM, although a clinically relevant impact on knee function was not evident in the majority of patients.
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Affiliation(s)
- Maximilian Neuwirth
- Division of Plastic, Aesthetic and Reconstructive Surgery, Department of Surgery, Medical University of Graz, Austria; Departement of Plastic, Aesthetic and Reconstructive Surgery, General Hospital Klagenfurt am Woerthersee, Feschnigstraße 11, Klagenfurt 9020, Austria.
| | - Thomas Ziegler
- Division of Plastic, Aesthetic and Reconstructive Surgery, Department of Surgery, Medical University of Graz, Austria
| | - Stefan Benedikt
- Division of Plastic, Aesthetic and Reconstructive Surgery, Department of Surgery, Medical University of Graz, Austria
| | - Raimund Winter
- Division of Plastic, Aesthetic and Reconstructive Surgery, Department of Surgery, Medical University of Graz, Austria
| | - Lars P Kamolz
- Division of Plastic, Aesthetic and Reconstructive Surgery, Department of Surgery, Medical University of Graz, Austria
| | - Michael Schintler
- Division of Plastic, Aesthetic and Reconstructive Surgery, Department of Surgery, Medical University of Graz, Austria
| | - Matthias Rab
- Departement of Plastic, Aesthetic and Reconstructive Surgery, General Hospital Klagenfurt am Woerthersee, Feschnigstraße 11, Klagenfurt 9020, Austria
| | - Michael Mueller-Eggenberger
- Departement of Plastic, Aesthetic and Reconstructive Surgery, General Hospital Klagenfurt am Woerthersee, Feschnigstraße 11, Klagenfurt 9020, Austria
| | - Madeleine Mischitz
- Departement of Plastic, Aesthetic and Reconstructive Surgery, General Hospital Klagenfurt am Woerthersee, Feschnigstraße 11, Klagenfurt 9020, Austria
| | - Wolfgang Palle
- Department of Trauma Surgery, Hospital Friesach, Austria
| | - Karina Hoenck
- Department of Trauma Surgery, Hospital Friesach, Austria
| | - Helmut Schoellnast
- Division of General Radiology, Department of Radiology, Medical University of Graz, Austria
| | - Elmar Janek
- Division of General Radiology, Department of Radiology, Medical University of Graz, Austria
| | - Andrea Borenich
- Institute for Medical Informatics, Statistics and Documentation, Medical University of Graz, Austria
| | - Heinz Buerger
- Division of Plastic, Aesthetic and Reconstructive Surgery, Department of Surgery, Medical University of Graz, Austria; Departement of Plastic, Aesthetic and Reconstructive Surgery, General Hospital Klagenfurt am Woerthersee, Feschnigstraße 11, Klagenfurt 9020, Austria; Division of Hand and Microsurgery, Private Hospital Maria Hilf, Austria
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