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Turati M, Anghilieri FM, Gatti SD, Courvoisier A, Rigamonti L, Zatti G, Nicolaou N, Bigoni M. Arthroscopic repair of proximal anterior cruciate ligament tears in children and adolescents: A systematic review. J Child Orthop 2024; 18:249-257. [PMID: 38831852 PMCID: PMC11144375 DOI: 10.1177/18632521241244626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 03/17/2024] [Indexed: 06/05/2024] Open
Abstract
Purpose Anterior cruciate ligament repair techniques are of growing interest because they allow for minimally invasive surgery that avoids harvesting of the transplant, without risking growth deficiencies in young patients. The aim of this study is to summarize the published evidence about arthroscopic repair of anterior cruciate ligament proximal tears in skeletally immature patients. Methods In total, four studies were included and processed for data extraction after screening for eligibility for this systematic review: one retrospective cohort study and three retrospective case series. Altogether, the four studies included in this review included 61 skeletally immature patients with a mean age of 12.1 years diagnosed with proximal anterior cruciate ligament tear who underwent arthroscopic repair with preservation of the native ligament. The mean follow-up period was 2.8 years. Results The most relevant and objective outcome that we considered was re-rupture rate. One study reports a cumulative incidence of graft failure in the first 3 years after surgery of 48.8% while the others report a 0%, 0% and 21.5% re-rupture rate. No growth disturbances were reported in the included studies. Conclusion Despite growing interest surrounding anterior cruciate ligament repair techniques, the presence of limited quality studies in the literature means repair cannot be strongly supported at present. Some encouraging data regarding the absence of growth disturbance and functional outcomes does exist, but studies with larger samples are required. Level of evidence level IV.
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Affiliation(s)
- Marco Turati
- Orthopedic Department, Fondazione IRCCS San Gerardo dei Tintori, Monza, Italy
- School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
- Transalpine Center of Pediatric Sports Medicine and Surgery, University of Milano-Bicocca - Hospital Couple Enfant, Monza (Italy), Grenoble, France
- Department of Paediatric Orthopedic Surgery, Hospital Couple Enfants, Grenoble Alpes University, Grenoble, France
| | | | - Simone Daniel Gatti
- Orthopedic Department, Fondazione IRCCS San Gerardo dei Tintori, Monza, Italy
- School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | - Aurelien Courvoisier
- Transalpine Center of Pediatric Sports Medicine and Surgery, University of Milano-Bicocca - Hospital Couple Enfant, Monza (Italy), Grenoble, France
- Department of Paediatric Orthopedic Surgery, Hospital Couple Enfants, Grenoble Alpes University, Grenoble, France
| | - Luca Rigamonti
- Department of Orthopedic Surgery, Policlinico San Pietro, Ponte San Pietro, Italy
| | - Giovanni Zatti
- Orthopedic Department, Fondazione IRCCS San Gerardo dei Tintori, Monza, Italy
- School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | - Nicolas Nicolaou
- Sheffield Children’s Hospital and Sheffield Children’s NHS Foundation Trust, Sheffield, UK
| | - Marco Bigoni
- School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
- Department of Orthopedic Surgery, Policlinico San Pietro, Ponte San Pietro, Italy
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Migliorini F, Pilone M, Memminger MK, Eschweiler J, Giorgino R, Maffulli N. All-epiphyseal anterior cruciate ligament reconstruction yields superior sports performances than the trans-epiphyseal technique in skeletally immature patients: a systematic review. J Orthop Traumatol 2024; 25:7. [PMID: 38376718 PMCID: PMC10879072 DOI: 10.1186/s10195-024-00751-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 01/13/2024] [Indexed: 02/21/2024] Open
Abstract
BACKGROUND Anterior cruciate ligament (ACL) tears in skeletally immature patients are increasingly common. Evidence comparing the outcomes of all-epiphyseal versus trans-epiphyseal ACL reconstruction in skeletally immature patients is limited, and the current literature could benefit from a comprehensive systematic review. The present study compared all-epiphyseal versus trans-epiphyseal ACL reconstruction in skeletally immature patients. The outcomes of interest were to compare joint laxity, patient-reported outcome measures (PROMs), return to sport, and complications. METHODS This study was conducted according to the 2020 Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement. In November 2023, the following databases were accessed: PubMed, Web of Science, Google Scholar, and Embase. No additional filters were used in the database search. All the clinical studies investigating ACL reconstruction in skeletally immature patients were accessed. Only articles that clearly stated the surgical technique (all- or trans-epiphyseal) were eligible. Only articles with a minimum of 6 months of follow-up were included. Only articles that clearly stated that surgeries were conducted in children with open physis were eligible. RESULTS Data from 1489 patients (1493 procedures) were collected, of which 32% (490 of 1489 patients) were female. The mean length of follow-up was 46.6 months. The mean age of the patients was 12.7 years. No difference was found in joint laxity (Table 3): positive pivot shift (P = 0.4), positive Lachman test (P = 0.3), and mean arthrometer laxity (P = 0.1). No difference was found in PROMs (Table 4): International Knee Documentation Committee (IKDC) (P = 0.3), Lysholm (P = 0.4), and Tegner (P = 0.7). The trans-epiphyseal technique was associated with a greater rate of patients unable to return to sports (1% versus 7%, P = 0.0001) and with a longer time to return to sports (7.7 versus 8.6 months, P = 0.01). Though the trans-epiphyseal technique was associated with a lower rate of return to sport, this difference was not statistically significant (P = 0.8). No difference was evidenced in the rate of patients who had reduced their league or level of sports activity (P = 0.6) or in the rate of patients who had returned to their previous league or level of sports activity (P = 0.7). No difference was found in the rate of complication: re-tear (P = 0.8), reoperation (P = 0.7), increased laxity (P = 0.9), and persistent instability sensation (P = 0.3). CONCLUSION Trans-epiphyseal ACL reconstruction was associated with a greater rate of patients unable to return to sport and with a longer time to return to sport compared with the all-epiphyseal technique in skeletally immature patients. Level of evidence Level III, systematic review.
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Affiliation(s)
- Filippo Migliorini
- Department of Orthopaedic, Trauma, and Reconstructive Surgery, RWTH University Hospital, Pauwelsstraße 30, 52074, Aachen, Germany.
- Department of Orthopaedics and Trauma Surgery, Academic Hospital of Bolzano (SABES-ASDAA), 39100, Bolzano, Italy.
| | - Marco Pilone
- Residency Program in Orthopedics and Traumatology, University of Milan, Milan, Italy
| | - Michael Kurt Memminger
- Department of Orthopaedics and Trauma Surgery, Academic Hospital of Bolzano (SABES-ASDAA), 39100, Bolzano, Italy
| | - Jörg Eschweiler
- Department of Orthopaedic, Trauma, and Reconstructive Surgery, RWTH University Hospital, Pauwelsstraße 30, 52074, Aachen, Germany
- Department of Trauma and Reconstructive Surgery, BG Hospital Bergmannstrost, Halle, Germany
| | - Riccardo Giorgino
- Residency Program in Orthopedics and Traumatology, University of Milan, Milan, Italy
| | - Nicola Maffulli
- Department of Medicine and Psychology, University of Rome "La Sapienza", Rome, Italy
- School of Pharmacy and Bioengineering, Faculty of Medicine, Keele University, ST4 7QB, Stoke on Trent, England
- Barts and the London School of Medicine and Dentistry, Centre for Sports and Exercise Medicine, Queen Mary University of London, Mile End Hospital, E1 4DG, London, England
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Migliorini F, Cocconi F, Schäfer L, Memminger MK, Giorgino R, Maffulli N. Anterior cruciate ligament reconstruction in skeletally immature patients is effective: A systematic review. Knee Surg Sports Traumatol Arthrosc 2024; 32:418-431. [PMID: 38258963 DOI: 10.1002/ksa.12048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Accepted: 12/28/2023] [Indexed: 01/24/2024]
Abstract
PURPOSE The present study evaluated the outcomes of anterior cruciate ligament (ACL) reconstruction in children with open physes. The outcomes of interest were to compare the increase in joint laxity and PROMs from baseline to the last follow-up, the rate and features of the return to sport and the rate of complications. METHODS This study was conducted according to the 2020 PRISMA guidelines. In October 2023, the following databases were accessed: PubMed, Web of Science, Google Scholar and Embase. All the clinical studies investigating ACL reconstruction in skeletally immature patients were accessed. Only articles which clearly stated that surgeries were conducted in children with open physis were eligible. RESULTS Data from 53 studies (1691 procedures) were collected. 35% (597 out of 1691 patients) were women. The mean length of the follow-up was 44.7 ± 31.3 months. The mean age of the patients was 12.7 ± 1.1 years old. All PROMs significantly improved from the baseline values to those at the last follow-up. The mean time to return to sport was 8.3 ± 1.9 months. 89% (690 out of 771 patients) returned to sports, 15% (109 out of 721 patients) reduced their level of sports activity or league, and 84% (651 out of 771 patients) returned to their previous level of sport. 9% (112 out of 1213) of patients experienced re-tear of the reconstructed ACL, and 11% (75 out of 660) of patients underwent a further ACL reoperation. No patients (0 out of 83) demonstrated increased laxity at the last follow-up, and persistent sensation of instability was reported by 5% (11 out of 235) of patients. CONCLUSION ACL reconstruction in skeletally immature patients is effective and safe, and is associated with fast recovery and a high rate of return to sport. LEVEL OF EVIDENCE Level IV.
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Affiliation(s)
- Filippo Migliorini
- Department of Orthopaedic, Trauma, and Reconstructive Surgery, RWTH University Medical Centre, Aachen, Germany
- Department of Orthopedics and Trauma Surgery, Academic Hospital of Bolzano (SABES-ASDAA), Bolzano, Italy
| | - Federico Cocconi
- Department of Orthopedics and Trauma Surgery, Academic Hospital of Bolzano (SABES-ASDAA), Bolzano, Italy
| | - Luise Schäfer
- Department of Orthopaedic, Trauma, and Reconstructive Surgery, RWTH University Medical Centre, Aachen, Germany
| | - Michael Kurt Memminger
- Department of Orthopedics and Trauma Surgery, Academic Hospital of Bolzano (SABES-ASDAA), Bolzano, Italy
| | - Riccardo Giorgino
- Residency Program in Orthopaedic and Traumatology, University of Milan, Milan, Italy
| | - Nicola Maffulli
- Department of Medicine and Psychology, University of Rome "La Sapienza", Rome, Italy
- School of Pharmacy and Bioengineering, Keele University Faculty of Medicine, Stoke-on-Trent, UK
- Centre for Sports and Exercise Medicine, Barts and the London School of Medicine and Dentistry, Mile End Hospital, Queen Mary University of London, London, UK
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Verhagen S, Dietvorst M, Delvaux E, van der Steen MC, Janssen R. Clinical outcomes of different autografts used for all-epiphyseal, partial epiphyseal or transphyseal anterior cruciate ligament reconstruction in skeletally immature patients - a systematic review. BMC Musculoskelet Disord 2023; 24:630. [PMID: 37537529 PMCID: PMC10401849 DOI: 10.1186/s12891-023-06749-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 07/24/2023] [Indexed: 08/05/2023] Open
Abstract
BACKGROUND Different types of grafts can be used for anterior cruciate ligament reconstruction (ACLR). There is little published data regarding skeletally immature patients. The purpose of this systematic review was to assess the clinical outcomes and complications for different autograft types used in all-epiphyseal, transphyseal and partial epiphyseal/hybrid ACLR in skeletally immature children and adolescents. METHODS PubMed, Embase and Cochrane databases were systematically searched for literature regarding ACLR using hamstrings, quadriceps or bone-patellar-tendon-bone (BPTB) autografts in skeletally immature patients. Studies were included if they examined at least one of the following outcomes: graft failure, return to sport(s), growth disturbance, arthrofibrosis or patient reported outcomes and had a minimum follow-up of 1 year. Case reports, conference abstracts and studies examining allografts and extra-articular or over-the-top ACL reconstruction techniques were excluded. Graft failure rates were pooled for each graft type using the quality effects model of MetaXL. A qualitative synthesis of secondary outcomes was performed. RESULTS The database search identified 242 studies. In total 31 studies were included in this review, comprising of 1358 patients. Most patients (81%) were treated using hamstring autograft. The most common used surgical technique was transphyseal. The weighted, pooled failure rate for each graft type was 12% for hamstring tendon autografts, 8% for quadriceps tendon autografts and 6% for BPTB autografts. Confidence intervals were overlapping. The variability in time to graft failure was high. The qualitative analysis of the secondary outcomes showed similar results with good clinical outcomes and low complication rates across all graft types. CONCLUSIONS Based on this review it is not possible to determine a superior graft type for ACLR in skeletally immature. Of the included studies, the most common graft type used was the hamstring tendon. Overall, graft failure rates are low, and most studies show good clinical outcomes with high return to sports rates.
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Affiliation(s)
- S Verhagen
- Department of Orthopaedic Surgery & Trauma, PO box, Máxima, Eindhoven, 5600 PD, MC, The Netherlands.
| | - M Dietvorst
- Department of Orthopaedic Surgery & Trauma, PO box, Máxima, Eindhoven, 5600 PD, MC, The Netherlands
| | - Ejlg Delvaux
- MMC Academy, Máxima, Veldhoven, MC, The Netherlands
| | - M C van der Steen
- Department of Orthopaedic Surgery & Trauma, PO box, Máxima, Eindhoven, 5600 PD, MC, The Netherlands
- Department of Orthopaedic Surgery & Trauma, Catharina Hospital Eindhoven, PO box 1350, Eindhoven, 5602 ZA, The Netherlands
| | - Rpa Janssen
- Department of Orthopaedic Surgery & Trauma, PO box, Máxima, Eindhoven, 5600 PD, MC, The Netherlands
- Orthopaedic Biomechanics, Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands
- Chair Value‑Based Health Care, Department of Paramedical Sciences, Fontys University of Applied Sciences, Eindhoven, The Netherlands
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Tang C, Kwaees TA, Accadbled F, Turati M, Green DW, Nicolaou N. Surgical techniques in the management of pediatric anterior cruciate ligament tears: Current concepts. J Child Orthop 2023; 17:12-21. [PMID: 36755552 PMCID: PMC9900020 DOI: 10.1177/18632521221149059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 12/14/2022] [Indexed: 01/16/2023] Open
Abstract
Background Anterior cruciate ligament injury in the child and adolescent patient remains a controversial topic when considering management, especially regarding surgical choices. Treatment variations are seen not just when comparing different countries but also within nations. This arises partly as contemporary treatment is mostly inferred from the adult population who physiologically and in terms of outcomes differ significantly from children. There is an increasing body of evidence for this cohort of patients who have specific challenges and difficulties when determining the optimum treatment. Methods Within this article, we will summarize the current evidence for surgical management of anterior cruciate ligament injury for the pediatric patient. Results and Conclusions There remain many controversies and gaps inthe treatment of Paediatric Anterior cruciate ligament reconstruction and this high risk cohort continues to cause difficulty in identifying the best mode of surgical management. Level of evidence level IV.
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Affiliation(s)
- Chun Tang
- Department of Paediatric Orthopaedics and Spinal Surgery, Sheffield Children’s Hospital, Sheffield Children’s NHS Foundation Trust, Sheffield, UK
| | - Tariq Adam Kwaees
- Department of Paediatric Orthopaedics and Spinal Surgery, Sheffield Children’s Hospital, Sheffield Children’s NHS Foundation Trust, Sheffield, UK
| | - Franck Accadbled
- Department of Orthopaedics, Children’s Hospital, CHU de Toulouse, Toulouse, France
| | - Marco Turati
- School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
- Transalpine Center of Pediatric Sports Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
- Orthopedic Department, Fondazione IRCCS San Gerardo dei Tintori, Monza, Italy
- Department of Paediatric Orthopedic Surgery, Hospital Couple Enfant, Grenoble Alpes University, Grenoble, France
| | - Daniel W Green
- Department of Pediatric Orthopedics, Hospital for Special Surgery, New York, NY, USA
| | - Nicolas Nicolaou
- Department of Paediatric Orthopaedics and Spinal Surgery, Sheffield Children’s Hospital, Sheffield Children’s NHS Foundation Trust, Sheffield, UK
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Duart J, Rigamonti L, Bigoni M, Kocher MS. Pediatric anterior cruciate ligament tears and associated lesions: Epidemiology, diagnostic process, and imaging. J Child Orthop 2023; 17:4-11. [PMID: 36755555 PMCID: PMC9900013 DOI: 10.1177/18632521231153277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 01/11/2023] [Indexed: 02/10/2023] Open
Abstract
The incidence of anterior cruciate ligament injuries in skeletally immature patients has increased in recent years. The gold standard treatment of this type of trauma in children is not yet established. Conservative management may underestimate the risk of new meniscal and chondral tears; on the other hand, a more interventional approach may expose the patient to iatrogenic damage to the growth plate. A correct approach to the skeletally immature patient with knee trauma is therefore essential to guide the decision-making process. This review article aims to present an update on the epidemiology and diagnostic process of pediatric patients with anterior cruciate ligament tears and possible associated injuries. Level of Evidence: V.
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Affiliation(s)
- Julio Duart
- Department of Orthopedic Surgery, Hospital Universitario de Navarra, Pamplona, Spain
| | - Luca Rigamonti
- Department of Orthopedic Surgery, San Pietro Clinic, Ponte San Pietro, Italy
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA
- Transalpine Center of Pediatric Sports Medicine and Surgery, University of Milano-Bicocca—Hospital Couple Enfant, Monza, Italy
| | - Marco Bigoni
- Department of Orthopedic Surgery, San Pietro Clinic, Ponte San Pietro, Italy
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA
- Transalpine Center of Pediatric Sports Medicine and Surgery, University of Milano-Bicocca—Hospital Couple Enfant, Monza, Italy
| | - Mininder S Kocher
- Sports Medicine Division, Boston Children’s Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
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Characterization of microRNA Levels in Synovial Fluid from Knee Osteoarthritis and Anterior Cruciate Ligament Tears. Biomedicines 2022; 10:biomedicines10112909. [PMID: 36428476 PMCID: PMC9687202 DOI: 10.3390/biomedicines10112909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 10/07/2022] [Accepted: 11/10/2022] [Indexed: 11/16/2022] Open
Abstract
This study investigated modifications of microRNA expression profiles in knee synovial fluid of patients with osteoarthritis (OA) and rupture of the anterior cruciate ligament (ACL). Twelve microRNAs (26a-5p, 27a-3p, let7a-5p, 140-5p, 146-5p, 155-5p, 16-5p,186-5p, 199a-3p, 210-3p, 205-5p, and 30b-5p) were measured by real-time quantitative polymerase chain reaction (RT-qPCR) in synovial fluids obtained from 30 patients with ACL tear and 18 patients with knee OA. These 12 miRNAs were chosen on the basis of their involvement in pathological processes of bone and cartilage. Our results show that miR-26a-5p, miR-186-5p, and miR-30b-5p were expressed in the majority of OA and ACL tear samples, whereas miR-199a-3p, miR-210-3p, and miR-205-5p were detectable only in a few samples. Interestingly, miR-140-5p was expressed in only one sample of thirty in the ACL tear group. miR-140-5p has been proposed to modulate two genes (BGN and COL5A1100) that are involved in ligamentous homeostasis; their altered expression could be linked with ACL rupture susceptibility. The expression of miR-30b-5p was higher in OA and chronic ACL groups compared to acute ACL samples. We provide evidence that specific miRNAs could be detected not only in synovial fluid of patients with OA, but also in post-traumatic ACL tears.
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Turati M, Caliandro M, Gaddi D, Piatti M, Rigamonti L, Zanchi N, Di Benedetto P, Boerci L, Catalano M, Zatti G, Ollivier M, Bigoni M. Clinical outcomes and complications after anterior cruciate ligament reconstruction with bone-patellar tendon-bone in patient Tanner 3 and 4: a systematic review. EUROPEAN JOURNAL OF ORTHOPAEDIC SURGERY & TRAUMATOLOGY : ORTHOPEDIE TRAUMATOLOGIE 2022:10.1007/s00590-022-03402-z. [PMID: 36307618 PMCID: PMC10368545 DOI: 10.1007/s00590-022-03402-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 09/28/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND Clinical outcomes and potential complications associated with Bone-Patellar Tendon-Bone (BPTB) graft in skeletally immature ACL reconstruction (ACLR) are poorly defined. Considering that in Tanner 1-2 patients this kind of graft is not recommended, we focused our systematic review on the evaluation of all the studies in the literature that reported clinical outcomes and rate of complications of the ACLR using BPTB graft in Tanner 3-4 patients. METHODS This review was conducted in accordance with the PRISMA statement. PubMed, Cochrane Library, EMBASE and Scopus were examined from 1965 to 2020 using different combinations of the following keywords: "ACL reconstruction", "skeletally immature", "young", "patellar tendon" and "BPTB". The database search yielded 742 studies, on which we performed a primary evaluation. After carrying out a full-text evaluation for the inclusion criteria, 4 studies were included in the final review and assessed using the Newcastle-Ottawa scale. Ninety-six cases with mean age of 14.2 years were reported. RESULTS Good stability and functional outcomes were reported with a mean follow-up of 49.5 months. Return to sport rate ranged from 91.7% to 100%. A KT-1000 side-to-side difference higher than 5 mm was observed in five patients (5.2%). No lower limb length discrepancy and angulation were reported. Graft rupture rate was 5.2%. CONCLUSION According to these results, BTPB graft could be a good choice in Tanner 3-4 patients who want to achieve their preinjury sport level with a low risk of growth disturbances and graft failure. Further investigations in a wider population are needed.
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Affiliation(s)
- Marco Turati
- Orthopedic Department, San Gerardo Hospital, Monza, Italy.
- School of Medicine and Surgery, University of Milano-Bicocca, Via Pergolesi 33, 20900, Monza, Italy.
- Transalpine Center of Pediatric Sports Medicine and Surgery, University of Milano-Bicocca - Hospital Couple Enfant, Monza (Italy), Grenoble, France.
- Department of Paediatric Orthopedic Surgery, Hospital Couple Enfants, Grenoble Alpes University, Grenoble, France.
| | - Marco Caliandro
- School of Medicine and Surgery, University of Milano-Bicocca, Via Pergolesi 33, 20900, Monza, Italy
- Transalpine Center of Pediatric Sports Medicine and Surgery, University of Milano-Bicocca - Hospital Couple Enfant, Monza (Italy), Grenoble, France
| | - Diego Gaddi
- Transalpine Center of Pediatric Sports Medicine and Surgery, University of Milano-Bicocca - Hospital Couple Enfant, Monza (Italy), Grenoble, France
- Department of Orthopaedic and Trauma, Policlinico San Pietro Hospital, Ponte San Pietro, Bg, Italy
| | - Massimiliano Piatti
- Transalpine Center of Pediatric Sports Medicine and Surgery, University of Milano-Bicocca - Hospital Couple Enfant, Monza (Italy), Grenoble, France
- Department of Orthopaedic and Trauma, Policlinico San Pietro Hospital, Ponte San Pietro, Bg, Italy
| | - Luca Rigamonti
- School of Medicine and Surgery, University of Milano-Bicocca, Via Pergolesi 33, 20900, Monza, Italy
- Transalpine Center of Pediatric Sports Medicine and Surgery, University of Milano-Bicocca - Hospital Couple Enfant, Monza (Italy), Grenoble, France
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA
| | - Nicolò Zanchi
- School of Medicine and Surgery, University of Milano-Bicocca, Via Pergolesi 33, 20900, Monza, Italy
- Transalpine Center of Pediatric Sports Medicine and Surgery, University of Milano-Bicocca - Hospital Couple Enfant, Monza (Italy), Grenoble, France
- Department of Orthopaedics & Rehabilitation, College of Medicine, The Pennsylvania State University, University Park, PA, USA
| | - Paolo Di Benedetto
- Medical Department (DAME), University of Udine, Udine, Italy
- Clinic of Orthopaedics, Friuli Centrale Healthcare and University Trust (ASUFC), Udine, Italy
| | - Linda Boerci
- School of Medicine and Surgery, University of Milano-Bicocca, Via Pergolesi 33, 20900, Monza, Italy
- Transalpine Center of Pediatric Sports Medicine and Surgery, University of Milano-Bicocca - Hospital Couple Enfant, Monza (Italy), Grenoble, France
| | - Marcello Catalano
- School of Medicine and Surgery, University of Milano-Bicocca, Via Pergolesi 33, 20900, Monza, Italy
- Transalpine Center of Pediatric Sports Medicine and Surgery, University of Milano-Bicocca - Hospital Couple Enfant, Monza (Italy), Grenoble, France
- Department of Orthopedics and Traumatology, Clinica Ars Medica, Gravesano, Ticino, Switzerland
| | - Giovanni Zatti
- Orthopedic Department, San Gerardo Hospital, Monza, Italy
- School of Medicine and Surgery, University of Milano-Bicocca, Via Pergolesi 33, 20900, Monza, Italy
- Transalpine Center of Pediatric Sports Medicine and Surgery, University of Milano-Bicocca - Hospital Couple Enfant, Monza (Italy), Grenoble, France
| | - Matthieu Ollivier
- Department of Orthopedics and Traumatology, St. Marguerite Hospital, APHM, CNRS, ISM, Institute of Movement and Locomotion, Aix Marseille University, Marseille, France
| | - Marco Bigoni
- School of Medicine and Surgery, University of Milano-Bicocca, Via Pergolesi 33, 20900, Monza, Italy
- Transalpine Center of Pediatric Sports Medicine and Surgery, University of Milano-Bicocca - Hospital Couple Enfant, Monza (Italy), Grenoble, France
- Department of Orthopaedic and Trauma, Policlinico San Pietro Hospital, Ponte San Pietro, Bg, Italy
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Li Y. Research and Implementation of Indoor 3D Positioning Algorithm Based on LED Visible Light Communication and Corresponding Parameter Estimation. COMPUTATIONAL INTELLIGENCE AND NEUROSCIENCE 2022; 2022:2940558. [PMID: 36148418 PMCID: PMC9489345 DOI: 10.1155/2022/2940558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 06/23/2022] [Accepted: 07/01/2022] [Indexed: 11/17/2022]
Abstract
In the era of mobile Internet, the application of various positioning-based location service systems is becoming more and more common. In addition, the traditional radio positioning system is limited in the use of special environments such as mines, hospitals, and gas stations, and long-term electromagnetic radiation can cause potential damage to the human body. Compared with the traditional wireless positioning technology, VLC-based positioning technology has a good application prospect in the field of indoor wireless positioning. Compared with traditional radio positioning technology, the use of VLC technology to achieve indoor positioning is different in that the system design and layout need to consider the basic needs of indoor lighting; that is, the layout of multiple visible light sources in the room should meet the minimum illumination requirements of any area of the room. Since the layout structure of the light source that only considers the lighting requirements or only considers the positioning accuracy requirements is not the same, in the design process of the indoor visible light wireless positioning system, it is necessary to consider the overall optimization layout of multiple indoor visible light sources under the conditions of lighting and positioning constraints. This paper mainly optimizes indoor positioning from the aspects of light source layout, reflected light intensity distribution, and noise model.
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Affiliation(s)
- Yi Li
- School of Information Engineering, Xi'an University, Xi'an, Shaanxi, China
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