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Scampa M, Mégevand V, Martineau J, Schaefer DJ, Kalbermatten DF, Oranges CM. Medial Femoral Condyle Free Flap: A Systematic Review and Proportional Meta-analysis of Applications and Surgical Outcomes. PLASTIC AND RECONSTRUCTIVE SURGERY-GLOBAL OPEN 2024; 12:e5708. [PMID: 38596574 PMCID: PMC11000773 DOI: 10.1097/gox.0000000000005708] [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: 10/09/2023] [Accepted: 02/12/2024] [Indexed: 04/11/2024]
Abstract
Background Recalcitrant bone nonunion and osseous defect treatment is challenging and often requires vascularized bone transfer. The medial femoral condyle flap has become an increasingly popular option for reconstruction. The study aims at reviewing its different applications and synthesizing its surgical outcomes. Method A systematic review including all studies assessing surgical outcomes of free medial femoral condyle flap for bone reconstruction in adults was conducted on January 31, 2023. Flap failure and postoperative complications were synthesized with a proportional meta-analysis. Results Forty articles describing bony reconstruction in the head and neck, upper limb, and lower limb areas were selected. Indications ranged from bony nonunion and bone defects to avascular bone necrosis. Multiple flaps were raised as either pure periosteal, cortico-periosteal, cortico-cancellous-periosteal, or cortico-chondro-periosteal. A minority of composite flaps were reported. Overall failure rate was 1% [95% confidence interval (CI), 0.00-0.08] in head & neck applications, 4% in the lower limb (95% CI, 0.00-0.16), 2% in the upper limb (95% CI, 0.00-0.06), and 1% in articles analyzing various locations simultaneously (95% CI, 0.00-0.04). Overall donor site complication rate was 4% (95% CI, 0.01-0.06). Major reported complications were: femoral fractures (n = 3), superficial femoral artery injury (n = 1), medial collateral ligament injury (n = 1), and septic shock due to pace-maker colonization (n = 1). Conclusion The medial femoral condyle flap is a versatile option for bone reconstruction with high success rates and low donor site morbidity.
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Affiliation(s)
- Matteo Scampa
- From the Department of Plastic, Reconstructive, and Aesthetic Surgery, Geneva University Hospitals, Geneva University, Geneva, Switzerland
| | - Vladimir Mégevand
- From the Department of Plastic, Reconstructive, and Aesthetic Surgery, Geneva University Hospitals, Geneva University, Geneva, Switzerland
- Department of Plastic surgery, Guy’s and St Thomas’ NHS Foundation Trust, St Thomas’ Hospital, London, United Kingdom
| | - Jérôme Martineau
- From the Department of Plastic, Reconstructive, and Aesthetic Surgery, Geneva University Hospitals, Geneva University, Geneva, Switzerland
| | - Dirk J. Schaefer
- Department of Plastic, Reconstructive, Aesthetic, and Hand Surgery, Basel University Hospital, Basel, Switzerland
| | - Daniel F. Kalbermatten
- From the Department of Plastic, Reconstructive, and Aesthetic Surgery, Geneva University Hospitals, Geneva University, Geneva, Switzerland
| | - Carlo M. Oranges
- From the Department of Plastic, Reconstructive, and Aesthetic Surgery, Geneva University Hospitals, Geneva University, Geneva, Switzerland
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Karunaratne YG, Romeo PB. Vascularized Reconstruction of Recalcitrant Clavicular Nonunion with the Medial Femoral Condyle Free Flap: A Systematic Review of the Literature. J Hand Microsurg 2024; 16:100016. [PMID: 38854380 PMCID: PMC11127545 DOI: 10.1055/s-0043-1760767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023] Open
Abstract
Recalcitrant clavicular nonunion is an uncommon but challenging problem. Vascularized bone reconstruction is not first-line therapy due to complexity and donor morbidity, though it has utility in select cases. A systematic review of Embase and Medline databases was undertaken for cases of medial femoral condyle reconstruction for clavicle nonunion. Ten studies met inclusion, encompassing 26 patients. Mean age was 38.9 years. Ten patients were male and 16 female. Mean time of nonunion was 37.79 months prior to intervention; mean time to union following medial femoral condyle flap was 7.60 months. Two patients did not achieve union. Of the 11 patients who previously had at least one failed fixation with bone graft, considered the current "gold standard", 9 patients (81.81%) went on to achieve union, while 2 patients (18.19%) did not. There were six reported complications in five patients. Medial femoral condyle flap is a valuable option in recalcitrant clavicle nonunion.
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Affiliation(s)
- Yasiru Gehan Karunaratne
- Department of Plastic and Reconstructive Surgery, Bankstown-Lidcombe Hospital, Sydney, NSW, Australia
| | - Pascalino Bruno Romeo
- Department of Plastic and Reconstructive Surgery, Nepean Hospital, Sydney, NSW, Australia
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Cha SM, Pai A, Lee HJ, Shin HD. Non-vascularised corticocancellous (tricortical) iliac bone graft longer than 3 cm for non-union after failed surgical treatment. J Plast Reconstr Aesthet Surg 2024; 88:37-44. [PMID: 37950990 DOI: 10.1016/j.bjps.2023.10.069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 09/03/2023] [Accepted: 10/07/2023] [Indexed: 11/13/2023]
Abstract
PURPOSE We hypothesised that traditional iliac tricortical bone grafts (no vascularised) still have a reasonable role in promoting satisfactory bony healing in non-union defects of certain sizes. Here, we report the clinical/radiological outcomes through a retrospective case series. METHODS We screened 74 patients with definitive non-union in the long bones of the upper extremities who visited the outpatient department from 2008 to 2018. Among these patients, 25 who met our inclusion/exclusion criteria were investigated. RESULTS The mean age was 51.92 years, and there were 12, 9, 1, and 3 lesions of the radius, ulna, clavicle, and humerus, respectively. The tools for primary fixations were plate and intramedullary nails in 24 and 1 patients, respectively. Six patients presented with atrophic non-union. The mean period from a previous surgery was 6.84 months. The mean defective bone sizes were 1.81 and 3.50 cm pre-debridement and post-debridement, respectively. All devices had locking plates longer than the previous plate, and the graft was concurrently fixed by screws in three patients. At a mean of 15.92 weeks after the revision surgery, all patients experienced union. At the final follow-up, the clinical outcomes were satisfactory. No significant differences in clinical outcomes were found according to the lesion, type of non-union, period from the previous surgery, or harvest length of the iliac bone. CONCLUSIONS If the proper indications and some technical aspects are considered, a non-vascularised iliac bone graft longer than 3 cm could still be a reasonable option for treating diaphyseal non-union of the upper extremities. LEVEL OF EVIDENCE Level IV, retrospective case series.
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Affiliation(s)
- Soo Min Cha
- Department of Orthopedic Surgery, Regional Rheumatoid and Degenerative Arthritis Centre, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, South Korea
| | - Ashwin Pai
- Department of Plastic Surgery, West Suffolk NHS Foundation Trust, United Kingdom
| | - Hyun Jong Lee
- Department of Orthopedic Surgery, Regional Rheumatoid and Degenerative Arthritis Centre, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, South Korea
| | - Hyun Dae Shin
- Department of Orthopedic Surgery, Regional Rheumatoid and Degenerative Arthritis Centre, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, South Korea.
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Kohlhauser M, Vasilyeva A, Kamolz LP, Bürger HK, Schintler M. Metacarpophalangeal Joint Reconstruction of a Complex Hand Injury with a Vascularized Lateral Femoral Condyle Flap Using an Individualized 3D Printed Model-A Case Report. J Pers Med 2023; 13:1570. [PMID: 38003885 PMCID: PMC10671979 DOI: 10.3390/jpm13111570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 10/22/2023] [Accepted: 10/29/2023] [Indexed: 11/26/2023] Open
Abstract
This case report describes the surgical management of a patient with a complex hand trauma. This injury included tendon, vascular, and nerve injuries, a partial amputation of the index finger, fractures of the third proximal phalanx, and destruction of the metacarpophalangeal joint of the fifth finger. Firstly, the acute treatment of a complex hand injury is described. Secondly, the planning and execution of a joint reconstruction using a vascularized lateral femoral condylar flap, assisted by an individual 3D model, is illustrated. Precise reconstruction of the affected structures resulted in good revascularization as well as an anatomical bone consolidation. Intensive physical therapy, including autonomous proprioceptive range-of-motion exercises by the patient, resulted in significant functional improvement of the hand in daily life. Overall, we report on the successful reconstruction of a metacarpophalangeal joint by using a vascularized flap from the lateral femoral condyle. Furthermore, this case report highlights the efficacy of integrating individualized 3D printing technology to plan complex reconstructions, opening up promising opportunities for personalized and optimized interventions.
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Affiliation(s)
- Michael Kohlhauser
- Division of Plastic, Aesthetic and Reconstructive Surgery, Department of Surgery, Medical University of Graz, 8036 Graz, Austria
| | - Anna Vasilyeva
- Division of Plastic, Aesthetic and Reconstructive Surgery, Department of Surgery, Medical University of Graz, 8036 Graz, Austria
| | - Lars-Peter Kamolz
- Division of Plastic, Aesthetic and Reconstructive Surgery, Department of Surgery, Medical University of Graz, 8036 Graz, Austria
- COREMED—Cooperative Centre for Regenerative Medicine, Joanneum Research Forschungsgesellschaft mbH, 8010 Graz, Austria
| | - Heinz K. Bürger
- Division of Plastic, Aesthetic and Reconstructive Surgery, Department of Surgery, Medical University of Graz, 8036 Graz, Austria
- Division of Hand Surgery, Private Hospital Maria Hilf, 9020 Klagenfurt am Wörthersee, Austria
| | - Michael Schintler
- Division of Plastic, Aesthetic and Reconstructive Surgery, Department of Surgery, Medical University of Graz, 8036 Graz, Austria
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Sliepen J, Hoekstra H, Onsea J, Bessems L, Depypere M, Noppe N, Herteleer M, Sermon A, Nijs S, Vranckx JJ, Metsemakers WJ. Treatment and outcome of fracture-related infection of the clavicle. Injury 2023; 54:110910. [PMID: 37421837 DOI: 10.1016/j.injury.2023.110910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 05/16/2023] [Accepted: 06/18/2023] [Indexed: 07/10/2023]
Abstract
INTRODUCTION The number of operatively treated clavicle fractures has increased over the past decades. Consequently, this has led to an increase in secondary procedures required to treat complications such as fracture-related infection (FRI). The primary objective of this study was to assess the clinical and functional outcome of patients treated for FRI of the clavicle. The secondary objectives were to evaluate the healthcare costs and propose a standardized protocol for the surgical management of this complication. METHODS All patients with a clavicle fracture who underwent open reduction and internal fixation (ORIF) between 1 January 2015 and 1 March 2022 were retrospectively evaluated. This study included patients with an FRI who were diagnosed and treated according to the recommendations of a multidisciplinary team at the University Hospitals Leuven, Belgium. RESULTS We evaluated 626 patients with 630 clavicle fractures who underwent ORIF. In total, 28 patients were diagnosed with an FRI. Of these, eight (29%) underwent definitive implant removal, five (18%) underwent debridement, antimicrobial treatment and implant retention, and fourteen patients (50%) had their implant exchanged in either a single-stage procedure, a two-stage procedure or after multiple revisions. One patient (3.6%) underwent resection of the clavicle. Twelve patients (43%) underwent autologous bone grafting (tricortical iliac crest bone graft (n = 6), free vascularized fibular graft (n = 5), cancellous bone graft (n = 1)) to reconstruct the bone defect. The median follow-up was 32.3 (P25-P75: 23.9-51.1) months. Two patients (7.1%) experienced a recurrence of infection. The functional outcome was satisfactory, with 26 out of 28 patients (93%) having full range of motion. The median healthcare cost was € 11.506 (P25-P75: € 7.953-23.798) per patient. CONCLUSION FRI is a serious complication that can occur after the surgical treatment of clavicle fractures. In our opinion, when treated adequately using a multidisciplinary patient-specific approach, the outcome of patients with an FRI of the clavicle is good. The median healthcare costs of these patients are up to 3.5 times higher compared to non-infected operatively treated clavicle fractures. Although not studied individually, we consider factors such as the size of the bone defect, condition of the soft tissue, and patient demand important when it comes to guiding our surgical decision making in cases of osseous defects.
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Affiliation(s)
- Jonathan Sliepen
- University Medical Center Groningen, Department of Trauma Surgery, University of Groningen, 9713 GZ Groningen, The Netherlands; University Hospitals Leuven, Department of Trauma Surgery, 3000 Leuven, Belgium
| | - Harm Hoekstra
- University Hospitals Leuven, Department of Trauma Surgery, 3000 Leuven, Belgium; KU Leuven, University of Leuven, Department of Development and Regeneration, 3000 Leuven, Belgium
| | - Jolien Onsea
- University Hospitals Leuven, Department of Trauma Surgery, 3000 Leuven, Belgium; KU Leuven, University of Leuven, Department of Development and Regeneration, 3000 Leuven, Belgium
| | - Laura Bessems
- University Hospitals Leuven, Department of Trauma Surgery, 3000 Leuven, Belgium; KU Leuven, University of Leuven, Department of Development and Regeneration, 3000 Leuven, Belgium
| | - Melissa Depypere
- University Hospitals Leuven, Department of Laboratory Medicine, 3000 Leuven, Belgium
| | - Nathalie Noppe
- University Hospitals Leuven, Department of Radiology, 3000 Leuven, Belgium
| | - Michiel Herteleer
- University Hospitals Leuven, Department of Trauma Surgery, 3000 Leuven, Belgium; KU Leuven, University of Leuven, Department of Development and Regeneration, 3000 Leuven, Belgium
| | - An Sermon
- University Hospitals Leuven, Department of Trauma Surgery, 3000 Leuven, Belgium; KU Leuven, University of Leuven, Department of Development and Regeneration, 3000 Leuven, Belgium
| | - Stefaan Nijs
- University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands
| | - Jan J Vranckx
- University Hospitals Leuven, Department of Plastic and Reconstructive Surgery, 3000 Leuven, Belgium
| | - Willem-Jan Metsemakers
- University Hospitals Leuven, Department of Trauma Surgery, 3000 Leuven, Belgium; KU Leuven, University of Leuven, Department of Development and Regeneration, 3000 Leuven, Belgium.
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Chappell AG, Ramsey MD, Dabestani PJ, Ko JH. Vascularized Bone Graft Reconstruction for Upper Extremity Defects: A Review. Arch Plast Surg 2023; 50:82-95. [PMID: 36755653 PMCID: PMC9902088 DOI: 10.1055/s-0042-1758639] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Accepted: 08/04/2022] [Indexed: 02/09/2023] Open
Abstract
Upper extremity reconstruction may pose clinical challenges for surgeons due to the often-critical, complex functional demands of the damaged and/or missing structures. The advent of vascularized bone grafts (VBGs) has aided in reconstruction of upper extremity (UE) defects due to their superior regenerative properties compared with nonvascularized bone grafts, ability to reconstruct large bony defects, and multiple donor site options. VBGs may be pedicled or free transfers and have the potential for composite tissue transfers when bone and soft tissue are needed. This article provides a comprehensive up-to-date review of VBGs, the commonly reported donor sites, and their indications for the treatment of specific UE defects.
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Affiliation(s)
- Ava G. Chappell
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Matthew D. Ramsey
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Parinaz J. Dabestani
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Loyola University Medical Center, Maywood, Illinois
| | - Jason H. Ko
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois,Address for correspondence Jason H. Ko, MD, MBA, Associate Professor, Program Director Plastic Surgery Residency, Division of Plastic and Reconstructive SurgeryDepartment of Orthopedic Surgery, Northwestern University Feinberg School of MedicineChicago, IL 60611
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van der Burg FA, Baltes TP, Kloen P. Large segmental defects in midshaft clavicle nonunion treated with autologous tricortical iliac crest bone graft. Shoulder Elbow 2023; 15:45-53. [PMID: 36895606 PMCID: PMC9990112 DOI: 10.1177/17585732211064815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 11/05/2021] [Accepted: 11/07/2021] [Indexed: 11/16/2022]
Abstract
Background To evaluate the use of intercalary iliac crest bone graft in the treatment of clavicle nonunion with a large segmental bone defect (3-6 cm). Methods This retrospective study evaluated patients with large segmental bone defects (3-6 cm) after clavicle nonunion, treated with open reposition internal fixation and iliac crest bone graft between February 2003 and March 2021. At follow-up the Disabilities of the Arm, Shoulder and Hand (DASH) questionnaire was administered. A literature search was performed to provide an overview of commonly used graft types per defect size. Results We included five patients treated with open reposition internal fixation and iliac crest bone graft for clavicle nonunion with a median defect size of 3.3 cm (range 3-6 cm). Union was achieved in all five, and all pre-operative symptoms resolved. The median DASH score was 23 out of 100 (IQR 8-24). An extensive literature search revealed that there are no studies describing the use of an used iliac crest graft for defects larger than 3 cm. Instead, a vascularized graft was typically used to treat defects sizes between 2.5 and 8 cm. Discussion An autologous non-vascularized iliac crest bone graft can be safely used and is reproducible to treat a midshaft clavicle non-union with a bone defect between 3 and 6 cm.
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Affiliation(s)
- Fleur Ae van der Burg
- Department of Orthopaedic Surgery, Amsterdam UMC, University of Amsterdam, Amsterdam Movement Sciences, The Netherlands
| | - Thomas Pa Baltes
- Department of Orthopaedic Surgery, Amsterdam UMC, University of Amsterdam, Amsterdam Movement Sciences, The Netherlands
| | - Peter Kloen
- Department of Orthopaedic Surgery, Amsterdam UMC, University of Amsterdam, Amsterdam Movement Sciences, The Netherlands
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Zhang C, Ma T, Duan N, Huang Q, Lu Y, Lin H, Zhang K, Xu Y, Wang Q, Xue H, Wang C, Li Z. Clinical and radiographic outcomes of revision with autogenous "structured" bone grafting combined with superior plate for recalcitrant atrophic nonunion of clavicular midshaft: a retrospective study. INTERNATIONAL ORTHOPAEDICS 2022; 46:2585-2592. [PMID: 36048235 DOI: 10.1007/s00264-022-05564-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 08/05/2022] [Indexed: 06/15/2023]
Abstract
PURPOSE To assess the efficacy of autogenous "structured" bone grafting (ASBG), it was combined with superior plate (SP) revision operations for recalcitrant clavicular midshaft aseptic nonunion (CMAN). METHODS This retrospective study included 12 patients who suffered from failure of autologous cancellous bone grafting (ACBG) and SP fixation because of CMAN. Visual analogue scale (VAS) data for pain and disabilities of arm, shoulder, and hand (DASH) scores of patients who underwent these procedures from January 2019 to December 2020, obtained before surgery and at the final follow-up time, were analysed. RESULTS The average time between primitive fracture and this operative treatment was 29 months (15-38 months). The average duration of surgery was 153 minutes (range, 115-230 min), and the average blood loss was 560 ml (range, 350-860 ml). Complications occurred in two cases (16.67%): one was persistent pain at the donor site, and the other was a calf muscle vein thrombosis. No tissue infection was observed during follow-up. The mean follow-up time was 18 months (range, 12-30 months). All fractures progressed to osseous healing at a mean time of 14 weeks (range, 12-16 weeks). The mean pain VAS score significantly improved, from 4.8 ± 1.7 pre-operatively to 1.9 ± 1.1 at the final follow-up (P = 0.01). The mean DASH score improved significantly from 30.1 ± 11.2 pre-operatively to 7.8 ± 4. 2 at the final follow-up (P < 0.01). CONCLUSIONS ASBG combined with SP revision surgery achieved excellent clinical outcomes in patients with recalcitrant CMAN.
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Affiliation(s)
- Congming Zhang
- Department of Orthopaedics and Traumatology, Xi'an, Jiaotong University College of Medicine, Honghui Hospital, 555 Youyi Road, Xi'an City, 710054, China
| | - Teng Ma
- Department of Orthopaedics and Traumatology, Xi'an, Jiaotong University College of Medicine, Honghui Hospital, 555 Youyi Road, Xi'an City, 710054, China
| | - Ning Duan
- Department of Orthopaedics and Traumatology, Xi'an, Jiaotong University College of Medicine, Honghui Hospital, 555 Youyi Road, Xi'an City, 710054, China
| | - Qiang Huang
- Department of Orthopaedics and Traumatology, Xi'an, Jiaotong University College of Medicine, Honghui Hospital, 555 Youyi Road, Xi'an City, 710054, China
| | - Yao Lu
- Department of Orthopaedics and Traumatology, Xi'an, Jiaotong University College of Medicine, Honghui Hospital, 555 Youyi Road, Xi'an City, 710054, China
| | - Hua Lin
- Department of Orthopaedics and Traumatology, Xi'an, Jiaotong University College of Medicine, Honghui Hospital, 555 Youyi Road, Xi'an City, 710054, China
| | - Kun Zhang
- Department of Orthopaedics and Traumatology, Xi'an, Jiaotong University College of Medicine, Honghui Hospital, 555 Youyi Road, Xi'an City, 710054, China
| | - Yibo Xu
- Department of Orthopaedics and Traumatology, Xi'an, Jiaotong University College of Medicine, Honghui Hospital, 555 Youyi Road, Xi'an City, 710054, China
| | - Qian Wang
- Department of Orthopaedics and Traumatology, Xi'an, Jiaotong University College of Medicine, Honghui Hospital, 555 Youyi Road, Xi'an City, 710054, China
| | - Hanzhong Xue
- Department of Orthopaedics and Traumatology, Xi'an, Jiaotong University College of Medicine, Honghui Hospital, 555 Youyi Road, Xi'an City, 710054, China
| | - Chaofeng Wang
- Department of Orthopaedics and Traumatology, Xi'an, Jiaotong University College of Medicine, Honghui Hospital, 555 Youyi Road, Xi'an City, 710054, China.
| | - Zhong Li
- Department of Orthopaedics and Traumatology, Xi'an, Jiaotong University College of Medicine, Honghui Hospital, 555 Youyi Road, Xi'an City, 710054, China.
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Zhang N, Hu L, Cao Z, Liu X, Pan J. Periosteal Skeletal Stem Cells and Their Response to Bone Injury. Front Cell Dev Biol 2022; 10:812094. [PMID: 35399528 PMCID: PMC8987235 DOI: 10.3389/fcell.2022.812094] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 01/24/2022] [Indexed: 12/21/2022] Open
Abstract
Bone exhibits remarkable self-repair ability without fibrous scars. It is believed that the robust regenerative capacity comes from tissue-resident stem cells, such as skeletal stem cells (SSCs). Roughly, SSC has two niches: bone marrow (BM) and periosteum. BM-SSCs have been extensively studied for years. In contrast, our knowledge about periosteal SSCs (P-SSCs) is quite limited. There is abundant clinical evidence for the presence of stem cell populations within the periosteum. Researchers have even successfully cultured “stem-like” cells from the periosteum in vitro. However, due to the lack of effective markers, it is difficult to evaluate the stemness of real P-SSCs in vivo. Recently, several research teams have developed strategies for the successful identification of P-SSCs. For the first time, we can assess the stemness of P-SSCs from visual evidence. BM-SSCs and P-SSCs not only have much in common but also share distinct properties. Here, we provide an updated review of P-SSCs and their particular responses to bone injury.
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