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Gokaraju K, Mahmoud A, Williams D, Duke PFR, Ross M. Scapulothoracic tenodesis using hamstring tendon graft for treatment of problematic scapula winging: A new surgical technique. Shoulder Elbow 2024; 16:274-284. [PMID: 38818097 PMCID: PMC11135188 DOI: 10.1177/17585732231174178] [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: 07/17/2022] [Revised: 03/29/2023] [Accepted: 04/01/2023] [Indexed: 06/01/2024]
Abstract
Introduction Winging of the scapula occurs due to dysfunction of its stabilising muscles, most commonly serratus anterior and/or trapezius, for example in facioscapulohumeral muscular dystrophy. Resultant loss of scapular control and abnormal kinematics can decrease shoulder function due to glenohumeral joint instability, loss of range of motion and pain. Previously described treatment for cases resistant to physiotherapy includes scapulothoracic arthrodesis which involves risk of non-union and metalwork failure, as well as reduced respiratory function due to immobilisation of a segment of the adjacent chest wall. Technique We present a novel surgical approach to the management of problematic scapular winging by using hamstring graft to achieve a scapulothoracic tenodesis. Discussion We believe this technique provides an adequately stable scapula for improved shoulder movement and function, a sufficiently mobile chest wall for improved lung function and avoidance of complications specifically associated with arthrodesis.
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Affiliation(s)
- Kishan Gokaraju
- Brisbane Hand and Upper Limb Research Institute, Brisbane, Queensland, Australia
- Orthopaedic Department, Princess Alexandra Hospital, Brisbane, Australia
| | - Ahmed Mahmoud
- Brisbane Hand and Upper Limb Research Institute, Brisbane, Queensland, Australia
- Orthopaedic Department, Princess Alexandra Hospital, Brisbane, Australia
- School of Medicine, The University of Queensland, St Lucia, Queensland, Australia
| | - Daniel Williams
- Brisbane Hand and Upper Limb Research Institute, Brisbane, Queensland, Australia
- Orthopaedic Department, Princess Alexandra Hospital, Brisbane, Australia
| | - Phillip FR Duke
- Brisbane Hand and Upper Limb Research Institute, Brisbane, Queensland, Australia
- Orthopaedic Department, Princess Alexandra Hospital, Brisbane, Australia
| | - Mark Ross
- Brisbane Hand and Upper Limb Research Institute, Brisbane, Queensland, Australia
- Orthopaedic Department, Princess Alexandra Hospital, Brisbane, Australia
- School of Medicine, The University of Queensland, St Lucia, Queensland, Australia
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Cristiani R, Forssblad M, Edman G, Eriksson K, Stålman A. The Addition of the Gracilis Tendon to a Semitendinosus Tendon Autograft Is Not Associated With Knee Muscle Strength, Subjective Knee Function, or Revision Surgery After Anterior Cruciate Ligament Reconstruction. Arthroscopy 2024; 40:1824-1832. [PMID: 38008759 DOI: 10.1016/j.arthro.2023.10.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 10/16/2023] [Accepted: 10/21/2023] [Indexed: 11/28/2023]
Abstract
PURPOSE To evaluate and compare isokinetic knee muscle (extension and flexion) strength, single-leg hop (SLH) test performance, anterior knee laxity, subjective knee function, and the 2-year revision surgery risk between patients who underwent anterior cruciate ligament reconstruction (ACLR) with semitendinosus tendon (ST) autografts and patients who underwent ACLR with ST and gracilis tendon (ST-G) autografts. METHODS We identified patients aged 16 years or older who underwent primary ACLR with hamstring tendon autografts at our institution from January 2005 to December 2020 and had no associated ligament injuries. Isokinetic knee muscle strength and SLH test performance were assessed 6 months postoperatively. Anterior knee laxity (KT-1000 arthrometer, 134 N) was assessed preoperatively and 6 months postoperatively. The Knee Injury and Osteoarthritis Outcome Score (KOOS) was collected preoperatively and 1 and 2 years postoperatively. Patients who underwent revision ACLR at any institution in Sweden within 2 years of primary surgery were identified through the Swedish National Knee Ligament Registry. RESULTS A total of 6,974 patients (5,479 with ST and 1,495 with ST-G) were included. There were no significant differences in extension and flexion strength or SLH test performance between the groups. Preoperatively, there was no significant difference in knee laxity between the ST and ST-G groups. Postoperatively, the ST-G group had significantly increased mean side-to-side (STS) laxity (2.1 ± 2.3 mm vs 1.7 ± 2.2 mm, P < .001) and showed a trend toward increased STS laxity according to the International Knee Documentation Committee form, with significantly fewer patients with STS laxity of 2 mm or less (58.4% vs 65.8%) and significantly more patients with STS laxity between 3 and 5 mm (35.0% vs 29.9%) or greater than 5 mm (6.6% vs 4.3%) (P < .001). The only significant difference in subjective knee function was for the KOOS Quality of Life subscale score in favor of the ST group preoperatively (37.3 ± 21.4 vs 35.1 ± 19.9, P = .001). No other significant differences between the groups were found preoperatively and 1 and 2 years postoperatively for any of the KOOS subscales. The overall revision ACLR rate within 2 years of primary surgery was 2.0% (138 of 6,974 patients). The revision ACLR risk in the ST-G group (1.7%, 25 of 1,495 patients) was not significantly different from that in the ST group (2.1%, 113 of 5,479 patients) (hazard ratio, 0.80; 95% confidence interval, 0.50-1.24; P = .32). CONCLUSIONS The addition of the gracilis tendon to an ST autograft was not associated with knee muscle strength, SLH test performance, subjective knee function, or the risk of revision surgery after ACLR. LEVEL OF EVIDENCE Level III, retrospective comparative study.
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Affiliation(s)
- Riccardo Cristiani
- Department of Molecular Medicine and Surgery, Stockholm Sports Trauma Research Center, Karolinska Institutet, Stockholm, Sweden; Capio Artro Clinic, FIFA Medical Centre of Excellence, Sophiahemmet Hospital, Stockholm, Sweden.
| | - Magnus Forssblad
- Department of Molecular Medicine and Surgery, Stockholm Sports Trauma Research Center, Karolinska Institutet, Stockholm, Sweden
| | - Gunnar Edman
- Department of Molecular Medicine and Surgery, Stockholm Sports Trauma Research Center, Karolinska Institutet, Stockholm, Sweden
| | - Karl Eriksson
- Department of Orthopaedics, Stockholm South Hospital, Stockholm, Sweden; Karolinska Institutet, Stockholm, Sweden
| | - Anders Stålman
- Department of Molecular Medicine and Surgery, Stockholm Sports Trauma Research Center, Karolinska Institutet, Stockholm, Sweden; Capio Artro Clinic, FIFA Medical Centre of Excellence, Sophiahemmet Hospital, Stockholm, Sweden
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Yamasaki S, Hashimoto Y, Iida K, Han C, Kinoshita T, Nishino K, Nishida Y, Takigami J, Nakamura H. Quadriceps Tendon With Bone Autograft Has Better Stability and Magnetic Resonance Imaging Maturation Than Hamstring Tendon Autograft After Anterior Cruciate Ligament Reconstruction in Patients With Knee Hyperextension. Arthroscopy 2024; 40:1234-1244. [PMID: 37597704 DOI: 10.1016/j.arthro.2023.08.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 07/22/2023] [Accepted: 08/10/2023] [Indexed: 08/21/2023]
Abstract
PURPOSE To compare the clinical outcomes of anterior cruciate ligament (ACL) reconstruction between methods using quadriceps tendon with bone (QTB) and hamstring tendon (HT) in patients with hyperextension of the knee. METHODS The medical records of patients with knee hyperextension greater than 8° who underwent arthroscopic ACL reconstruction between October 2010 and October 2020 with follow-up for at least 2 years (median, 3 years; interquartile range [IQR], 2.0-4.6 years) were retrospectively reviewed. Side-to-side difference in anterior translation, pivot-shift test grade, Lysholm score, and graft intensity using the Howell grade on magnetic resonance imaging at final follow-up were compared between the QTB and HT groups. RESULTS The HT and QTB groups consisted of 42 patients and 21 patients, respectively. The overall mean age was 21.5 years (range, 14-48 years), and the median Tegner Activity Scale score was 6 (range, 3-9). Postoperatively, the median side-to-side difference in anterior translation was 1.75 mm (IQR, 1-3 mm) in the HT group and 1.0 mm (IQR, 0-1.75 mm) in the QTB group (P = .01). Pivot-shift testing showed grade 0 in 74.7%, grade 1 in 18.7%, and grade 2 in 6.6% of patients in the HT group and grade 0 in 85.7% and grade 1 in 14.3% of those in the QTB group (P = .03). The median postoperative Lysholm score was 99 in both groups. Graft signal intensity showed a significant between-group difference: grade I in 52%, grade II in 36%, and grade III in 12% of patients in the HT group versus grade I in 85.7%, grade II in 9.5%, and grade III in 4.8% of those in the QTB group (P = .03). CONCLUSIONS In patients who underwent ACL reconstruction for hyperextension of the knee, QTB yielded better clinical outcomes than HT with respect to anterior stability, rotational stability, and graft signal intensity on median 2-year follow-up magnetic resonance imaging. LEVEL OF EVIDENCE Level III, retrospective case-control study.
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Affiliation(s)
- Shinya Yamasaki
- Department of Orthopaedic Surgery, Osaka City General Hospital, Osaka, Japan.
| | - Yusuke Hashimoto
- Department of Orthopaedic Surgery, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Ken Iida
- Department of Orthopaedic Surgery, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Changhun Han
- Department of Orthopaedic Surgery, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Takuya Kinoshita
- Department of Orthopaedic Surgery, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Kazuya Nishino
- Department of Orthopaedic Surgery, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Yohei Nishida
- Department of Orthopaedic Surgery, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Junsei Takigami
- Department of Orthopaedic Surgery, Shimada Hospital, Osaka, Japan
| | - Hiroaki Nakamura
- Department of Orthopaedic Surgery, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
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Runer A, Keeling L, Wagala N, Nugraha H, Özbek EA, Hughes JD, Musahl V. Current trends in graft choice for anterior cruciate ligament reconstruction - part I: anatomy, biomechanics, graft incorporation and fixation. J Exp Orthop 2023; 10:37. [PMID: 37005974 PMCID: PMC10067784 DOI: 10.1186/s40634-023-00600-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Accepted: 03/22/2023] [Indexed: 04/04/2023] Open
Abstract
Graft selection in anterior cruciate ligament (ACL) reconstruction is critical, as it remains one of the most easily adjustable factors affecting graft rupture and reoperation rates. Commonly used autografts, including hamstring tendon, quadriceps tendon and bone-patellar-tendon-bone, are reported to be biomechanically equivalent or superior compared to the native ACL. Despite this, such grafts are unable to perfectly replicate the complex anatomical and histological characteristics of the native ACL. While there remains inconclusive evidence as to the superiority of one autograft in terms of graft incorporation and maturity, allografts appear to demonstrate slower incorporation and maturity compared to autografts. Graft fixation also affects graft properties and subsequent outcomes, with each technique having unique advantages and disadvantages that should be carefully considered during graft selection.
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Affiliation(s)
- Armin Runer
- Department of Orthopaedic Surgery, UPMC Freddie Fu Sports Medicine Center, University of Pittsburgh, Pittsburgh, PA, USA.
- Department for Sports Orthopaedics, Klinikum Rechts der Isar, Technical University of Munich, Munich, Germany.
| | - Laura Keeling
- Department of Orthopaedic Surgery, UPMC Freddie Fu Sports Medicine Center, University of Pittsburgh, Pittsburgh, PA, USA
| | - Nyaluma Wagala
- Department of Orthopaedic Surgery, UPMC Freddie Fu Sports Medicine Center, University of Pittsburgh, Pittsburgh, PA, USA
| | - Hans Nugraha
- Department of Orthopaedic and Traumatology, Faculty of Medicine, University of Udayana, / Prof. Dr. I.G.N.G. Ngoerah General Hospital, Denpasar, Bali, Indonesia
| | - Emre Anil Özbek
- Department of Orthopaedic Surgery, UPMC Freddie Fu Sports Medicine Center, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Orthopedics and Traumatology, Ankara University, Ankara, Turkey
| | - Jonathan D Hughes
- Department of Orthopaedic Surgery, UPMC Freddie Fu Sports Medicine Center, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Orthopaedics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Volker Musahl
- Department of Orthopaedic Surgery, UPMC Freddie Fu Sports Medicine Center, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Orthopaedics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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Wang Z, Tao HB, Wang Y, Liu B, Han WF, Xiang LB. Clinical application of modified Crain classification in the Design of Anterior Cruciate Ligament Reconstruction with remnant preservation. BMC Musculoskelet Disord 2022; 23:1066. [PMID: 36471273 PMCID: PMC9721086 DOI: 10.1186/s12891-022-05912-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 10/25/2022] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND To investigate the clinical application of modified Crain classification in anterior cruciate ligament (ACL) reconstruction (ACLR) with remnant preservation. METHODS The subjects were 70 patients with ACL injury who underwent ACLR from May 2016 to June 2018, and their general data were recorded. They were randomly divided into modified remnant-preserved ACLR group (group M, n = 35) and non remnant-preserved ACLR group (group N, n = 35). ACLR program with remnant preservation was designed based on modified Crain classification in group M, while ACL remnants were completely cleaned during ACLR in group N. Subsequently, the two groups were compared in terms of operation time, complications, as well as Lysholm score, international knee documentation committee (IKDC) score and positive rate of Lachman test of knee joint before operation and at 3, 6 and 12 months after operation. RESULTS Both the groups showed good postoperative efficacy, and none had complications like limited knee extension or cyclops lesion. The comparison results found that group M (72.49 ± 7.64 min) required longer operation time than group N (66.06 ± 6.37 min) (P < 0.05). Lysholm score and IKDC score at 3, 6 and 12 months after operation in the two groups were significantly higher than those before operation (P < 0.05); group M had higher Lysholm score and IKDC score at 3 months and 6 months after operation compared with group N (P < 0.05). Additionally, the positive rate of Lachman test at 3, 6 and 12 months after operation in both groups was significantly lower than that before operation (P < 0.05), but there was no significant difference between group M and group N. CONCLUSION With the modified Crain classification, many remnant-preserved reconstruction techniques can be rationally used to completely preserve the remnant ligament tissue during operation and improve knee joint function and joint stability with few complications.
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Affiliation(s)
- Zheng Wang
- Department of orthopedics, General Hospital of Northern Theater Command, Shenyang, 110016 China
| | - Hai-bing Tao
- Department of orthopedics, General Hospital of Northern Theater Command, Shenyang, 110016 China
| | - Yu Wang
- Department of orthopedics, General Hospital of Northern Theater Command, Shenyang, 110016 China
| | - Bin Liu
- Department of orthopedics, General Hospital of Northern Theater Command, Shenyang, 110016 China
| | - Wen-feng Han
- Department of orthopedics, General Hospital of Northern Theater Command, Shenyang, 110016 China
| | - Liang-bi Xiang
- Department of orthopedics, General Hospital of Northern Theater Command, Shenyang, 110016 China
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Uquillas JA, Spierings J, van der Lande A, Eren AD, Bertrand M, Yuan H, Yuan H, van Groningen B, Janssen R, Ito K, de Boer J, Foolen J. An off-the-shelf decellularized and sterilized human bone-ACL-bone allograft for anterior cruciate ligament reconstruction. J Mech Behav Biomed Mater 2022; 135:105452. [PMID: 36122497 DOI: 10.1016/j.jmbbm.2022.105452] [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: 07/07/2022] [Revised: 08/31/2022] [Accepted: 09/03/2022] [Indexed: 11/16/2022]
Abstract
Approximately 1% of active individuals participating in sports rupture their anterior cruciate ligaments (ACL) every year, which is currently reconstructed using tendon autografts. Upon reconstruction, clinical issues of concern are ACL graft rupture, persistent knee instability, limited return to sports, and early onset of osteoarthritis (OA). This happens because tendon autografts do not have the same compositional, structural, and mechanical properties as a native ACL. To overcome these problems, we propose to use decellularized bone-ACL-bone allografts in ACL reconstruction (ACLR) as a mechanically robust, biocompatible, and immunologically safe alternative to autografts. Here, a decellularization protocol combined with sterilization using supercritical carbon dioxide (scCO2) was used to thoroughly decellularize porcine and human ACLs attached to tibial and femoral bone blocks. The specimens were named ultrACLean and their compositional, structural, and mechanical properties were determined. Our results indicate that: 1) decellularization of ultrACLean allografts leads to the removal of nearly 97% of donor cells, 2) ultrACLean has mechanical properties which are not different to native ACL, 3) ultrACLean maintained similar collagen content and decreased GAG content compared to native ACL, and 4) ultrACLean is not cytotoxic to seeded tendon-derived cells in vitro. Results from an in vivo pilot experiment showed that ultrACLean is biocompatible and elicits a moderate immunological response. In summary, ultrACLean has proven to be a mechanically competent and biocompatible graft with the potential to be used in ACLR surgery.
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Affiliation(s)
- Jorge Alfredo Uquillas
- Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, the Netherlands; Institute of Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, the Netherlands
| | - Janne Spierings
- Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, the Netherlands; Institute of Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, the Netherlands
| | - Antonio van der Lande
- Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, the Netherlands
| | - Aysegul Dede Eren
- Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, the Netherlands; Institute of Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, the Netherlands
| | - Manon Bertrand
- Hightech Contract Manufacturing Medical, Nijmegen, the Netherlands
| | - Hao Yuan
- Huipin Yuan's Lab, Sichuan, China
| | | | - Bart van Groningen
- Department of Orthopaedic Surgery, Maxima Medical Centre Eindhoven/Veldhoven, the Netherlands
| | - Rob Janssen
- Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, the Netherlands; Department of Orthopaedic Surgery, Maxima Medical Centre Eindhoven/Veldhoven, the Netherlands; Health Innovations and Technology, Department of Paramedical Sciences, Fontys University of Applied Sciences, Eindhoven, the Netherlands
| | - Keita Ito
- Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, the Netherlands; Eindhoven MedTech Innovation Center, Eindhoven University of Technology, Eindhoven, the Netherlands
| | - Jan de Boer
- Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, the Netherlands; Institute of Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, the Netherlands
| | - Jasper Foolen
- Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, the Netherlands; Institute of Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, the Netherlands.
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Marchiori G, Berni M, Cassiolas G, Vivarelli L, Lopomo NF, Fini M, Dallari D, Govoni M. Extra-Corporeal Membrane Oxygenation Cadaver Donors: What about Tissues Used as Allografts? MEMBRANES 2021; 11:membranes11070545. [PMID: 34357195 PMCID: PMC8307999 DOI: 10.3390/membranes11070545] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 07/15/2021] [Accepted: 07/16/2021] [Indexed: 01/16/2023]
Abstract
Several studies demonstrated the efficacy of post-mortem extracorporeal membrane oxygenation (ECMO) on donors in preserving organ function addressing organ transplantation. Nevertheless, no common and shared evidence was reached about the possibility of using ECMO donors in tissue harvesting. Therefore, this work aimed first to review the current scientific literature about ECMO donors, and then to focus on the use of ECMO tissues as allografts, mainly addressing musculoskeletal tissues, which are of the most interest for reconstruction. A search was conducted on the current scientific literature, focusing on the keywords "ECMO" and "Donor". Several online databases were used, including PubMed, Scopus, and Web of Science. From the preliminary search, 478 articles were obtained, out of which 173 specifically reported the use of ECMO for donation and transplantation purposes. Literature reported extensive analyses of ECMO organs-overall from the abdomen-both in pre- and post-transplantation studies. On the other hand, ECMO tissues were explanted only in a very limited number of cases; moreover, no information was referred about their status and use. A revision of the current scientific literature highlighted the lack of information concerning ECMO tissues and the necessity to perform preclinical, ex vivo studies to compare allografts from ECMO donors, with respect to standard donors, and, thus, to verify whether they can be harvested and implanted safely and with efficacy.
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Affiliation(s)
- Gregorio Marchiori
- Surgical Sciences and Technologies Complex Structure, IRCCS Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, 40136 Bologna, Italy; (G.M.); (M.F.)
| | - Matteo Berni
- Medical Technology Laboratory Complex Structure, IRCCS Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, 40136 Bologna, Italy;
| | - Giorgio Cassiolas
- Department of Information Engineering, University of Brescia, Via Branze 38, 25123 Brescia, Italy; (G.C.); (N.F.L.)
| | - Leonardo Vivarelli
- Reconstructive Orthopaedic Surgery and Innovative Techniques—Musculoskeletal Tissue Bank, IRCCS Istituto Ortopedico Rizzoli, Via G.C. Pupilli 1, 40136 Bologna, Italy; (D.D.); (M.G.)
- Correspondence:
| | - Nicola Francesco Lopomo
- Department of Information Engineering, University of Brescia, Via Branze 38, 25123 Brescia, Italy; (G.C.); (N.F.L.)
| | - Milena Fini
- Surgical Sciences and Technologies Complex Structure, IRCCS Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, 40136 Bologna, Italy; (G.M.); (M.F.)
| | - Dante Dallari
- Reconstructive Orthopaedic Surgery and Innovative Techniques—Musculoskeletal Tissue Bank, IRCCS Istituto Ortopedico Rizzoli, Via G.C. Pupilli 1, 40136 Bologna, Italy; (D.D.); (M.G.)
| | - Marco Govoni
- Reconstructive Orthopaedic Surgery and Innovative Techniques—Musculoskeletal Tissue Bank, IRCCS Istituto Ortopedico Rizzoli, Via G.C. Pupilli 1, 40136 Bologna, Italy; (D.D.); (M.G.)
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Yamasaki S, Hashimoto Y, Han C, Nishino K, Hidaka N, Nakamura H. Patients with a quadriceps tendon shorter than 60 mm require a patellar bone plug autograft in anterior cruciate ligament reconstruction. Knee Surg Sports Traumatol Arthrosc 2021; 29:1927-1935. [PMID: 32909058 DOI: 10.1007/s00167-020-06261-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 08/28/2020] [Indexed: 10/23/2022]
Abstract
PURPOSE To assess the length and thickness of the quadriceps tendon (QT) and anterior cruciate ligament (ACL) to predict the required QT length for individual ACL reconstruction. METHODS Thirty patients (9 females, 21 males; mean age 24.5 years; mean height 169.3 cm) who underwent ACL reconstruction using the QT with a bone plug autograft were enrolled. The length and thickness of the QT on preoperative magnetic resonance imaging (MRI) were compared with those measured under direct visualization. The ACL length was measured on preoperative MRI and three-dimensional computed tomography after ACL reconstruction. The QT length on MRI was compared with the required graft length, and the factors related to an adequate QT length were assessed. RESULTS The mean QT length on MRI was 60.8 ± 1.3 mm and was significantly positively correlated with the QT length under direct visualization (P < 0.01). On MRI, the mean ACL length was 30.8 ± 1.2 mm and the mean QT thickness was 6.3 ± 0.2 mm. Although the mean QT was 0.1 mm longer than the mean required graft length, the QT on MRI was shorter than the required graft length in 37% of patients (11/30). Adequate QT length was related to a QT length of more than 60 mm, but not to age, sex, height, or ACL length. CONCLUSION Although preoperative MRI predicted the required QT length for ACL reconstruction, 37% of patients lacked an adequate QT length, and a QT shorter than 60 mm required the addition of patellar bone. LEVEL OF EVIDENCE III.
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Affiliation(s)
- Shinya Yamasaki
- Department of Orthopaedics Surgery, Osaka City General Hospital, 2-13-22, Miyakojima-hondori, Miyakojima-ku, Osaka, 534-0021, Japan. .,Department of Orthopaedics Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan.
| | - Yusuke Hashimoto
- Department of Orthopaedics Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Changhun Han
- Department of Orthopaedics Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Kazuya Nishino
- Department of Orthopaedics Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Noriaki Hidaka
- Department of Orthopaedics Surgery, Osaka City General Hospital, 2-13-22, Miyakojima-hondori, Miyakojima-ku, Osaka, 534-0021, Japan
| | - Hiroaki Nakamura
- Department of Orthopaedics Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan
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Marchiori G, Lopomo NF, Bologna E, Spadaro D, Camarda L, Berni M, Visani A, Zito M, Zaffagnini S, Zingales M. How preconditioning and pretensioning of grafts used in ACLigaments surgical reconstruction are influenced by their mechanical time-dependent characteristics: Can we optimize their initial loading state? Clin Biomech (Bristol, Avon) 2021; 83:105294. [PMID: 33667940 DOI: 10.1016/j.clinbiomech.2021.105294] [Citation(s) in RCA: 3] [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: 05/07/2020] [Revised: 02/08/2021] [Accepted: 02/12/2021] [Indexed: 02/07/2023]
Abstract
PURPOSE Consensus about a pre-implant preparation protocol adaptable to any graft used in Anterior Cruciate Ligament reconstruction is still lacking. In fact, there is not agreement on reliable metrics that consider both specific graft dimensional characteristics, such as its diameter, and the inherent properties of its constitutive material, i.e. ligaments or tendons. Aim of the present study was to investigate and propose the applied engineering stress as a possible metrics. METHODS Preconditioning and pretensioning protocol involved groups of grafts with different section (10 or 32 mm2) and materials (i.e. human patellar and hamstring tendons, and synthetic grafts). A 140 N load was applied to the grafts and maintained for 100 s. Initial stress and following stress-relaxation (a mechanical characteristic that can be related to knee laxity) were specifically analysed. FINDINGS Initial stress, ranging between 4 and 12 MPa, was affected primarily by the graft cross-section area and secondarily by the choice of the graft material. In terms of loss of the initial stress, stress-relaxation behaviour varied instead on a narrower range, namely 13-17%. INTERPRETATION Engineering stress can be identified as the correct metrics to optimize the initial state of each graft to avoid excessive stiffness, laxity or fatigue rupture phenomena.
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Affiliation(s)
- Gregorio Marchiori
- IRCCS Istituto Ortopedico Rizzoli, Laboratorio di Scienze e Tecnologie Chirurgiche, Via di Barbiano 1/10, 40136 Bologna, Italy
| | - Nicola Francesco Lopomo
- IRCCS Istituto Ortopedico Rizzoli, Laboratorio di Scienze e Tecnologie Chirurgiche, Via di Barbiano 1/10, 40136 Bologna, Italy; Department of Information Engineering, University of Brescia, Via Branze 38, 25123, Brescia, Italy
| | - Emanuela Bologna
- Engineering Department, University of Palermo, Viale delle Scienze ed.8, 90100 Palermo, Italy; Bio/NanoMechanics for Medical Sciences Laboratory, ATeN-Center, University of Palermo, Viale delle Scienze ed.8, 90100 Palermo, Italy
| | - Doriana Spadaro
- Fallprotec SA, 43-45 ZA Op Zaemer, 4959 Bascharage, Luxembourg
| | - Lawrence Camarda
- Department of Discipline Surgical, Oncology and Dentistry, University of Palermo, Via Liborio Giuffrè, 5, 90127, Palermo, Italy
| | - Matteo Berni
- IRCCS Istituto Ortopedico Rizzoli, Laboratorio di Tecnologia Medica, Via di Barbiano 1/10, 40136 Bologna, Italy
| | - Andrea Visani
- IRCCS Istituto Ortopedico Rizzoli, Laboratorio di Scienze e Tecnologie Chirurgiche, Via di Barbiano 1/10, 40136 Bologna, Italy
| | - Marianna Zito
- Engineering Department, University of Palermo, Viale delle Scienze ed.8, 90100 Palermo, Italy
| | - Stefano Zaffagnini
- IRCCS Istituto Ortopedico Rizzoli, IIa Clinica Ortopedica e Traumatologica, Via Pupilli 1/10, 40136 Bologna, Italy
| | - Massimiliano Zingales
- Engineering Department, University of Palermo, Viale delle Scienze ed.8, 90100 Palermo, Italy; Bio/NanoMechanics for Medical Sciences Laboratory, ATeN-Center, University of Palermo, Viale delle Scienze ed.8, 90100 Palermo, Italy.
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Cardona-Ramirez S, Stoker AM, Cook JL, Ma R. Fibroblasts From Common Anterior Cruciate Ligament Tendon Grafts Exhibit Different Biologic Responses to Mechanical Strain. Am J Sports Med 2021; 49:215-225. [PMID: 33259232 DOI: 10.1177/0363546520971852] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Different tendons are chosen for anterior cruciate ligament (ACL) reconstruction based on perceived advantages and disadvantages, yet there is a relative paucity of information regarding biologic responsiveness of commonly used tendon grafts to mechanical strain. PURPOSE To evaluate the in vitro responses of graft fibroblasts derived from tendons used for ACL reconstruction to clinically relevant strain levels. STUDY DESIGN Controlled laboratory study. METHODS Twelve quadriceps tendons (QTs), 12 patellar tendons (PTs), and 9 hamstring tendons (HTs) were harvested from skeletally mature dogs (n = 16). Tendon fibroblasts were isolated and seeded onto BioFlex plates (1 × 105 cells/well). Cells were subjected to 3 strain conditions (stress deprivation, 0%; physiologic, 4%; high, 10%) for 5 days. Media were collected for proinflammatory and metabolic assays. RNA was extracted for gene expression analysis using real-time reverse transcription polymerase chain reaction. RESULTS Stress deprivation elicited significantly higher metabolic activity from HT and PT cells than from QT cells (P < .001 and P = .001, respectively). There were no differences in metabolic activity among all 3 graft fibroblasts at physiologic and high strain. COL-1 expression was significantly higher in PT versus HT during physiologic strain (P = .007). No significant differences with COL-3 expression were seen. TIMP-1 (P = .01) expression was higher in PT versus HT under physiologic strain. Scleraxis expression was higher in PT versus HT (P = .007) under physiologic strain. A strain-dependent increase in PGE2 levels occurred for all grafts. At physiologic strain conditions, HT produced significantly higher levels of PGE2 versus QT (P < .001) and PT (P = .005). CONCLUSION Fibroblasts from common ACL graft tissues exhibited different metabolic responses to mechanical strain. On the basis of these data, we conclude that early production of extracellular matrix and proinflammatory responses from ACL grafts are dependent on mechanical loading and graft source. CLINICAL RELEVANCE Graft-specific differences in ACL reconstruction outcomes are known to exist. Our results suggest that there are differences in the biologic responsiveness of cells from the tendon grafts used in ACL reconstruction, which are dependent on strain levels and graft source. The biologic properties of the tissue used for ACL reconstruction should be considered when selecting graft source.
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Affiliation(s)
- Sebastian Cardona-Ramirez
- Department of Orthopaedic Surgery, Thompson Laboratory for Regenerative Orthopaedics, University of Missouri, Columbia, Missouri, USA
| | - Aaron M Stoker
- Department of Orthopaedic Surgery, Thompson Laboratory for Regenerative Orthopaedics, University of Missouri, Columbia, Missouri, USA
| | - James L Cook
- Department of Orthopaedic Surgery, Thompson Laboratory for Regenerative Orthopaedics, University of Missouri, Columbia, Missouri, USA
| | - Richard Ma
- Department of Orthopaedic Surgery, Thompson Laboratory for Regenerative Orthopaedics, University of Missouri, Columbia, Missouri, USA
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11
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Kaku N, Shimada T, Tanaka A, Ando T, Tabata T, Tagomori H, Tsumura H. Ultrastructure and three-dimensional architecture of the anterior cruciate ligament in the knee joints of young and old monkeys. Med Mol Morphol 2019; 53:7-14. [PMID: 31104131 DOI: 10.1007/s00795-019-00224-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Accepted: 05/11/2019] [Indexed: 12/20/2022]
Abstract
We examined the ultrastructure of the anterior cruciate ligament and assessed age-related changes by comparing the ligaments of young and old monkeys. Ultrathin sections of the anterior cruciate ligament were observed by transmission electron microscopy. The three-dimensional architecture of collagen fibers in the ligament was examined by scanning electron microscopy after tissue specimens were treated with 2 N NaOH to digest the extracellular matrix. At the surface layer of the cruciate ligament in young monkeys, fusiform-shaped fibroblasts actively produced collagen fibrils. The ligament consisted of parallel bundles of dense collagen fibrils of approximately 200 nm in diameter. Collagen fibrils appeared to run linearly. Ligament fibrocytes in the deep layer had a stellate form. Ligament fibrocytes decreased in number and showed marked atrophy in old age. Collagen fibrils had a looser configuration in older monkeys. Despite atrophy of fibroblasts in the deep layer of the anterior cruciate ligament, the area with atrophic fibroblasts in the ligament expands with age, which can likely cause deterioration of and a reduction in collagen fibers. This information can be applied in studies on the cause of the low repair ability of and aging-related changes in the anterior cruciate ligament in humans.
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Affiliation(s)
- Nobuhiro Kaku
- Department of Orthopaedic Surgery, Faculty of Medicine, Oita University, 1-1 Idaigaoka Hasama-machi, Yufu, Oita, 879-5593, Japan.
| | - Tatsuo Shimada
- Oita College of Judo Therapy and Acupuncture-Moxibustion, 1-1 Chiyo machi, Oita, Oita, Japan
| | - Ai Tanaka
- Department of Orthopaedic Surgery, Faculty of Medicine, Oita University, 1-1 Idaigaoka Hasama-machi, Yufu, Oita, 879-5593, Japan
| | - Tetsuo Ando
- Oita College of Judo Therapy and Acupuncture-Moxibustion, 1-1 Chiyo machi, Oita, Oita, Japan
| | - Tomonori Tabata
- Department of Orthopaedic Surgery, Faculty of Medicine, Oita University, 1-1 Idaigaoka Hasama-machi, Yufu, Oita, 879-5593, Japan
| | - Hiroaki Tagomori
- Department of Orthopaedic Surgery, Faculty of Medicine, Oita University, 1-1 Idaigaoka Hasama-machi, Yufu, Oita, 879-5593, Japan
| | - Hiroshi Tsumura
- Department of Orthopaedic Surgery, Faculty of Medicine, Oita University, 1-1 Idaigaoka Hasama-machi, Yufu, Oita, 879-5593, Japan
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12
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Schmidt EC, Chin M, Aoyama JT, Ganley TJ, Shea KG, Hast MW. Mechanical and Microstructural Properties of Native Pediatric Posterior Cruciate and Collateral Ligaments. Orthop J Sports Med 2019; 7:2325967118824400. [PMID: 30775386 PMCID: PMC6362518 DOI: 10.1177/2325967118824400] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Although anterior cruciate ligament (ACL) tears have received the most attention, the medial collateral ligament (MCL) is thought to be the most commonly injured knee ligament overall. The lateral collateral ligament (LCL) and posterior collateral ligament (PCL) are less frequently compromised but can be involved in severe multiligament injuries. The paucity of information on the native properties of these ligaments in the pediatric population hinders the overall optimization of treatment for these injuries. PURPOSE To characterize the mechanical and microstructural properties of pediatric MCLs, LCLs, and PCLs using a rare cadaveric cohort (mean age, 9.2 years). STUDY DESIGN Descriptive laboratory study. METHODS MCLs, LCLs, and PCLs were harvested from 5 fresh-frozen pediatric knee specimens (3 male, 2 female) and were subjected to a tensile loading protocol. A subset of contralateral tissues from a single donor was analyzed using bright-field, polarized light, and transmission electron microscopy to measure collagen fiber morphology. RESULTS The pediatric MCL exhibited values for ultimate stress (11.7 ± 6.7 MPa), ultimate strain (18.2% ± 6.8%), and the Young modulus (93.7 ± 56.5 MPa) that were similar to values for the LCL (11.4 ± 11.5 MPa, 27.7% ± 12.9%, and 64.4 ± 76.6 MPa, respectively). The PCL demonstrated decreased ultimate stress (4.2 ± 1.8 MPa), increased ultimate strain (28.8% ± 11.9%), and a decreased Young modulus (19.8 ± 10.4 MPa) when compared with the MCL and LCL. All 3 ligaments had similar mean crimp wavelengths (MCL, 32.8 ± 3.6 µm; LCL, 27.2 ± 3.5 µm; PCL, 25.8 ± 3.5 µm) and collagen fibril diameters (MCL, 88.0 ± 26.0 nm; LCL, 93.3 ± 34.6 nm; PCL, 90.9 ± 34.0 nm); however, the fibril distribution profiles exhibited different modalities. CONCLUSION The pediatric MCL and LCL possessed similar mechanical properties, while the pediatric PCL was weaker but capable of withstanding higher amounts of strain. All 3 of these pediatric structures were weaker than what has been reported in studies with adult cohorts. CLINICAL RELEVANCE Results from this study can be considered preliminary mechanical and microstructural data for healthy pediatric collateral and posterior cruciate ligaments that can be used to guide further laboratory and clinical research.
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Affiliation(s)
- Elaine C. Schmidt
- Biedermann Laboratory for Orthopaedic Research, Department of
Orthopaedic Surgery, University of Pennsylvania, Philadelphia, Pennsylvania,
USA
| | - Matthew Chin
- Biedermann Laboratory for Orthopaedic Research, Department of
Orthopaedic Surgery, University of Pennsylvania, Philadelphia, Pennsylvania,
USA
| | - Julien T. Aoyama
- Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania,
USA
| | | | - Kevin G. Shea
- Department of Orthopaedic Surgery, Stanford University, Stanford,
California, USA
| | - Michael W. Hast
- Biedermann Laboratory for Orthopaedic Research, Department of
Orthopaedic Surgery, University of Pennsylvania, Philadelphia, Pennsylvania,
USA
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Schmidt EC, Chin M, Aoyama JT, Ganley TJ, Shea KG, Hast MW. Mechanical and Microstructural Properties of Pediatric Anterior Cruciate Ligaments and Autograft Tendons Used for Reconstruction. Orthop J Sports Med 2019; 7:2325967118821667. [PMID: 30719479 PMCID: PMC6348523 DOI: 10.1177/2325967118821667] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Over the past several decades, there has been a steady increase in pediatric anterior cruciate ligament (ACL) tears, particularly in young female basketball and soccer players. Because allograft tissue for pediatric ACL reconstruction (ACLR) has shown high rates of failure, autograft tissue may be the best option for ACLR in this population. However, differences in the structure and mechanical behavior of these tissues are not clear. PURPOSE To characterize the mechanical and microstructural properties in pediatric ACLs and autograft tissues using a rare cadaveric cohort (mean age, 9.2 years). STUDY DESIGN Descriptive laboratory study. METHODS ACLs, patellar tendons, quadriceps tendons, semitendinosus tendons, and iliotibial bands (ITBs) were harvested from 5 fresh-frozen pediatric knee specimens (3 male, 2 female) and subjected to a tensile loading protocol. A subset of contralateral tissues was analyzed using bright-field, polarized light, and transmission electron microscopy. RESULTS Patellar tendons exhibited values for ultimate stress (5.2 ± 3.1 MPa), ultimate strain (35.3% ± 12.5%), and the Young modulus (27.0 ± 8.8 MPa) that were most similar to the ACLs (5.2 ± 2.2 MPa, 31.4% ± 9.9%, and 23.6 ± 15.5 MPa, respectively). Semitendinosus tendons and ITBs were stronger but less compliant than the quadriceps or patellar tendons. ITBs exhibited crimp wavelengths (27.0 ± 2.9 μm) and collagen fibril diameters (67.5 ± 19.5 nm) that were most similar to the ACLs (24.4 ± 3.2 μm and 65.3 ± 19.9 nm, respectively). CONCLUSION The mechanical properties of the patellar tendon were almost identical to those of the ACL. The ITB exhibited increased strength and a similar microstructure to the native ACL. These findings are not entirely congruent with studies examining adult tissues. CLINICAL RELEVANCE These results can be used to inform further clinical research. In particular, they justify a further examination of the biomechanical and microstructural properties of the ITB in the context of its role as an autograft tissue in pediatric ACL reconstruction.
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Affiliation(s)
- Elaine C. Schmidt
- Biedermann Laboratory for Orthopaedic Research, Department of Orthopaedic Surgery, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Matthew Chin
- Biedermann Laboratory for Orthopaedic Research, Department of Orthopaedic Surgery, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Julien T. Aoyama
- Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | | | - Kevin G. Shea
- Department of Orthopaedic Surgery, Stanford University, Stanford, California, USA
| | - Michael W. Hast
- Biedermann Laboratory for Orthopaedic Research, Department of Orthopaedic Surgery, University of Pennsylvania, Philadelphia, Pennsylvania, USA
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Figueroa D, Martínez R, Calvo R, Scheu M, Gallegos M, Vaisman A, Martínez C, González A. Patrón de revascularización de injertos de tendones flexores rotos en reconstrucción de ligamento cruzado anterior: un estudio histológico. Rev Esp Cir Ortop Traumatol (Engl Ed) 2016; 60:372-377. [DOI: 10.1016/j.recot.2016.07.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2015] [Revised: 06/28/2016] [Accepted: 07/03/2016] [Indexed: 10/21/2022] Open
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15
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Revascularisation pattern of ruptured flexor tendon grafts in anterior cruciate ligament reconstruction: A histological study. Rev Esp Cir Ortop Traumatol (Engl Ed) 2016. [DOI: 10.1016/j.recote.2016.09.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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16
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Fabbri M, Monaco E, Lanzetti RM, Perugia D, Guzzini M, Labianca L, Ferretti A. Single harvesting in the all-inside graft-link technique: is the graft length crucial for success? A biomechanical study. J Orthop Traumatol 2016; 18:17-22. [PMID: 27435413 PMCID: PMC5310998 DOI: 10.1007/s10195-016-0420-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2015] [Accepted: 07/07/2016] [Indexed: 01/10/2023] Open
Abstract
Background The all-inside graft-link technique for anterior cruciate ligament reconstruction is performed with two cortical suspension devices with adjustable loops on both femur and tibia. This technique requires meticulous graft preparation. The aim of this study was to biomechanically test three different graft configurations resulting from differences in initial graft length. Materials and methods Thirty bovine digital extensor tendons were arranged in three different ways: “half-quadrupled”, “tripled” and “quadrupled”. The final graft length was 65–75 mm. The specimens were fixed vertical to the loading axis of a tensile testing machine. After a static pre-conditioning of 50 N for 5 min, a load to failure test was performed and data regarding the ultimate failure load (UFL), the stiffness and mode of failure were recorded. Results The evaluation of UFL showed a significant differences between group means as determined by one-way analysis of variance (F = 21.92, p = 0.002). Post hoc comparisons showed a significantly better UFL of “tripled” (p = 0.007) and “quadrupled” preparations (p = 0.014) compared to the “half-quadrupled” configuration, with no significant differences between “tripled” and “quadrupled” grafts (p = 0.061). No significant differences were found when evaluating the stiffness between the groups. Failure occurred by tendon slippage across the suture in all specimens. Conclusion The “quadrupled” tendon achieved the best UFL, with even the “tripled” configuration having sufficient biomechanical characteristics to withstand the loads experienced during early rehabilitation. For this reason, with a total semitendinosus length of less than 260 mm it could be better to “triple” instead of “half-quadruple” it to achieve better performance of the graft.
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Affiliation(s)
- Mattia Fabbri
- Orthopaedic Department and "Kirk Kilgour" Sports Injury Center, Sant' Andrea Hospital, "La Sapienza" University of Rome, via di grottarossa, 1035-1039, Rome, Italy.
| | - Edoardo Monaco
- Orthopaedic Department and "Kirk Kilgour" Sports Injury Center, Sant' Andrea Hospital, "La Sapienza" University of Rome, via di grottarossa, 1035-1039, Rome, Italy
| | - Riccardo Maria Lanzetti
- Orthopaedic Department and "Kirk Kilgour" Sports Injury Center, Sant' Andrea Hospital, "La Sapienza" University of Rome, via di grottarossa, 1035-1039, Rome, Italy
| | - Dario Perugia
- Orthopaedic Department and "Kirk Kilgour" Sports Injury Center, Sant' Andrea Hospital, "La Sapienza" University of Rome, via di grottarossa, 1035-1039, Rome, Italy
| | - Matteo Guzzini
- Orthopaedic Department and "Kirk Kilgour" Sports Injury Center, Sant' Andrea Hospital, "La Sapienza" University of Rome, via di grottarossa, 1035-1039, Rome, Italy
| | - Luca Labianca
- Orthopaedic Department and "Kirk Kilgour" Sports Injury Center, Sant' Andrea Hospital, "La Sapienza" University of Rome, via di grottarossa, 1035-1039, Rome, Italy
| | - Andrea Ferretti
- Orthopaedic Department and "Kirk Kilgour" Sports Injury Center, Sant' Andrea Hospital, "La Sapienza" University of Rome, via di grottarossa, 1035-1039, Rome, Italy
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17
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Suzuki D, Otsubo H, Watanabe T, Kamiya T, Nagoya S, Yamashita T, Shino K. Ultrastructure of the three anterior cruciate ligament bundles. Clin Anat 2015; 28:910-6. [DOI: 10.1002/ca.22586] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Revised: 06/05/2015] [Accepted: 06/06/2015] [Indexed: 12/17/2022]
Affiliation(s)
- Daisuke Suzuki
- Department of Musculoskeletal Biomechanics and Surgical Development; Sapporo Medical University; Sapporo Japan
| | - Hidenori Otsubo
- Department of Orthopaedic Surgery; Sapporo Medical University School of Medicine; Sapporo Japan
| | - Takafumi Watanabe
- Faculty of Agriculture; Shinshu University, Minami-minowa, Kami-ina; Nagano Japan
| | - Tomoaki Kamiya
- Department of Orthopaedic Surgery; Sapporo Medical University School of Medicine; Sapporo Japan
| | - Satoshi Nagoya
- Department of Musculoskeletal Biomechanics and Surgical Development; Sapporo Medical University; Sapporo Japan
| | - Toshihiko Yamashita
- Department of Orthopaedic Surgery; Sapporo Medical University School of Medicine; Sapporo Japan
| | - Konsei Shino
- Sports Orthopaedic Center, Yukioka Hospital; Osaka Japan
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18
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Kato S, Saito M, Funasaki H, Marumo K. Distinctive collagen maturation process in fibroblasts derived from rabbit anterior cruciate ligament, medial collateral ligament, and patellar tendon in vitro. Knee Surg Sports Traumatol Arthrosc 2015; 23:1384-1392. [PMID: 24221246 PMCID: PMC4555208 DOI: 10.1007/s00167-013-2773-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2013] [Accepted: 10/31/2013] [Indexed: 01/08/2023]
Abstract
PURPOSE Differences in the tissue-specific collagen maturation process between tendon and ligament are still unknown. Collagen cross-link formation is crucial for the collagen maturation process. The aim of this study is to examine collagen maturation processes of anterior cruciate ligament (ACL), medial collateral ligament (MCL), and patellar tendon (PT) in vitro, in order to determine the optimal cell source for tissue engineering of ligament. METHODS Cells derived from the ACL, MCL, and PT of New Zealand white rabbits were isolated. Each cell type was cultured for up to 4 weeks after reaching confluence. Cell-matrix layers were evaluated and compared for their morphology, collagen cross-links, and gene expression levels of lysine hydroxylase 1 and 2, lysyl oxidase (LOX), tenomodulin, collagen1A1 (Col1A1), and collagen3A1 (Col3A1). RESULTS Transmission electron microscopy photomicrographs verified that collagen fibrils were secreted from all three types of fibroblasts. A higher ratio of dihydroxylysinonorleucine/hydroxylysinonorleucine was evident in the ligament compared to the tendon, which was consistent with lysine hydroxylase 2/lysine hydroxylase 1 gene expression. The gene expression of LOX, which regulates the total amount of enzymatic cross-linking, and the gene expression levels of Col1A1 and Col3A1 were higher in the ACL matrix than in the MCL and PT matrices. CONCLUSION ACL, MCL, and PT cells have distinct collagen maturation processes at the cellular level. In addition, the collagen maturation of ACL cells is not necessarily inferior to that of MCL and PT cells in that all three cell types have a good ability to synthesize collagen and induce collagen maturation. This bioactivity of ACL cells in terms of ligament-specific mature collagen induction can be applied to tissue-engineered ACL reconstruction or remnant preserving procedure with ACL reconstruction.
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Affiliation(s)
- Soki Kato
- Department of Orthopaedic Surgery, The Jikei University School of Medicine, 3-25-8 Nishi-shinbashi, Minato-ku, Tokyo, 105-8461, Japan.
| | - Mitsuru Saito
- Department of Orthopaedic Surgery, The Jikei University School of Medicine, 3-25-8 Nishi-shinbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Hiroki Funasaki
- Department of Orthopaedic Surgery, The Jikei University School of Medicine, 3-25-8 Nishi-shinbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Keishi Marumo
- Department of Orthopaedic Surgery, The Jikei University School of Medicine, 3-25-8 Nishi-shinbashi, Minato-ku, Tokyo, 105-8461, Japan
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Abstract
Tears of the anterior cruciate ligament (ACL) are very frequent injuries, particularly in young and active people. Arthroscopic reconstruction using tendon auto- or allograft represents the gold-standard for the management of ACL tears. Interestingly, the ACL has the potential to heal upon intensive non-surgical rehabilitation procedures. Several biological factors influence this healing process as local intraligamentous cytokines and mainly cell repair mechanisms controlled by stem cells or progenitor cells. Understanding the mechanisms of this regeneration process and the cells involved may pave the way for novel, less invasive and biology-based strategies for ACL repair. This review aims to focus on the current knowledge on the mechanisms of ACL healing, the nature and potential of ligament derived stem/progenitor cells as well as on the potential and the limitations of using mesenchymal stem cells (MSCs) for treating injured ACL.
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20
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Little D, Thompson JW, Dubois LG, Ruch DS, Moseley MA, Guilak F. Proteomic differences between male and female anterior cruciate ligament and patellar tendon. PLoS One 2014; 9:e96526. [PMID: 24818782 PMCID: PMC4018326 DOI: 10.1371/journal.pone.0096526] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2013] [Accepted: 04/08/2014] [Indexed: 12/30/2022] Open
Abstract
The risk of anterior cruciate ligament (ACL) injury and re-injury is greater for women than men. Among other factors, compositional differences may play a role in this differential risk. Patellar tendon (PT) autografts are commonly used during reconstruction. The aim of the study was to compare protein expression in male and female ACL and PT. We hypothesized that there would be differences in key structural components between PT and ACL, and that components of the proteome critical for response to mechanical loading and response to injury would demonstrate significant differences between male and female. Two-dimensional liquid chromatography-tandem mass spectrometry and a label-free quantitative approach was used to identify proteomic differences between male and female PT and ACL. ACL contained less type I and more type III collagen than PT. There were tissue-specific differences in expression of proteoglycans, and ACL was enriched in elastin, tenascin C and X, cartilage oligomeric matrix protein, thrombospondin 4 and periostin. Between male and female donors, alcohol dehydrogenase 1B and complement component 9 were enriched in female compared to male. Myocilin was the major protein enriched in males compared to females. Important compositional differences between PT and ACL were identified, and we identified differences in pathways related to extracellular matrix regulation, complement, apoptosis, metabolism of advanced glycation end-products and response to mechanical loading between males and females. Identification of proteomic differences between male and female PT and ACL has identified novel pathways which may lead to improved understanding of differential ACL injury and re-injury risk between males and females.
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Affiliation(s)
- Dianne Little
- Department of Orthopaedic Surgery, Duke University Medical Center, Durham, North Carolina, United States of America
- * E-mail:
| | - J. Will Thompson
- Proteomics Core Facility, Institute for Genome Science & Policy, Duke University Medical Center, Durham, North Carolina, United States of America
| | - Laura G. Dubois
- Proteomics Core Facility, Institute for Genome Science & Policy, Duke University Medical Center, Durham, North Carolina, United States of America
| | - David S. Ruch
- Department of Orthopaedic Surgery, Duke University Medical Center, Durham, North Carolina, United States of America
| | - M. Arthur Moseley
- Proteomics Core Facility, Institute for Genome Science & Policy, Duke University Medical Center, Durham, North Carolina, United States of America
| | - Farshid Guilak
- Department of Orthopaedic Surgery, Duke University Medical Center, Durham, North Carolina, United States of America
- Department of Biomedical Engineering, Duke University Medical Center, Durham, North Carolina, United States of America
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Mizutani N, Kageyama S, Yamada M, Hasegawa M, Miyamoto K, Horiuchi T. The behavior of ligament cells cultured on elastin and collagen scaffolds. J Artif Organs 2013; 17:50-9. [PMID: 24141748 DOI: 10.1007/s10047-013-0736-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2013] [Accepted: 10/02/2013] [Indexed: 01/08/2023]
Abstract
The ruptured anterior cruciate ligament (ACL) does not heal spontaneously. Therefore, the development of new healing techniques employing tissue engineering is vital. One of the aspects related to tissue-engineered artificial ligaments is the type of cell to be used for the artificial ligament. In this study, ligament cells from the ACL and periodontal ligament (PDL) were evaluated. In addition, we prepared highly oriented extracellular matrix (ECM) fiber scaffolds that mimicked the structure of the ligament and examined the cellular responses to these scaffolds. Elastin-A and collagen were used as the ECM proteins. Although the cells from the PDL (PDL fibroblasts [PDLFs]) showed approximately 2.1-fold higher expression of alkaline phosphatase (ALP; marker of osteogenic differentiation) than the ACL cells, the expression of ligament-related genes (for type I collagen, type III collagen, and tenomodulin) did not differ between PDLFs and ACL cells. Furthermore, the cellular responses (expression pattern of ligament-related genes and ALP activity) to the ECM were similar between ACL cells and PDLFs. In particular, elastin-A upregulated ALP and downregulated tenomodulin (TeM; a ligament marker) in ligament cells. In contrast, collagen maintained TeM expression in ligament cells. These results suggest that elastin-A promotes the osteogenic differentiation of ligament cells and that collagen maintains the phenotype of ligament cells.
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Affiliation(s)
- Naoki Mizutani
- Division of Chemistry for Materials, Faculty of Engineering, Graduate School of Mie University, 1577 Kurima-Machiyacho, Tsu, Mie, 514-8507, Japan
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22
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Zhu J, Zhang X, Ma Y, Zhou C, Ao Y. Ultrastructural and morphological characteristics of human anterior cruciate ligament and hamstring tendons. Anat Rec (Hoboken) 2012; 295:1430-6. [PMID: 22807249 DOI: 10.1002/ar.22527] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2011] [Accepted: 06/14/2012] [Indexed: 01/12/2023]
Abstract
Hamstring tendons are a commonly used substitute for anterior cruciate ligament (ACL) reconstruction. Ligaments and tendons are similar in composition but the ACL is more complex than hamstring tendons in function and gross morphology, which are highly dependent on its structure and ultrastructure. The purpose of this study was to compare the morphology and ultrastructure of normal human ACL and hamstring tendons, including the cell type and arrangement, expression level of proteoglycans, diameter, and density of collagen fibrils. Twenty semitendinosus or gracilis tendons and 20 ACL specimens were harvested from patients with ACL rupture or osteoarthritis undergoing routine total knee arthroplasty. The specimens were examined histologically and the ultrastructure was observed using scanning and transmission electron microscopy. Semitendinosus and gracilis tendons showed a homogeneous arrangement of collagen fibers and cell type. They had lower fibril density and more widely distributed fibril diameters. In the ACL, there was a more complex arrangement of collagen fibers, distribution of proteoglycans and different cell types. Electronic microscopy demonstrated a combination of parallel, helical and nonlinear networks of ACL fibrils, and fibril diameters were smaller and more nonuniform. This study compared the anatomy of normal human ACL and hamstring tendons, which may provide a standard for evaluating hamstring tendons grafts after ACL reconstruction and may facilitate the application of hamstring tendons in clinical applications.
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Affiliation(s)
- Jingxian Zhu
- Institute of Sports Medicine, Third Hospital of Peking University, Beijing, People's Republic of China
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23
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Effects of additional gracilis tendon harvest on muscle torque, motor coordination, and knee laxity in ACL reconstruction. Knee Surg Sports Traumatol Arthrosc 2011; 19:1287-92. [PMID: 21298255 DOI: 10.1007/s00167-011-1412-5] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2010] [Accepted: 01/20/2011] [Indexed: 02/08/2023]
Abstract
PURPOSE To evaluate muscle torque, lower extremity coordination, and knee laxity after ACL reconstruction comparing patients operated on with semitendinosus graft (ST) and patients with combined semitendinosus and gracilis (STGR) grafts. METHODS Forty-six subjects who underwent ST (n = 23) or STGR harvest (n = 23) ACL reconstruction participated in this study. Quadriceps and hamstring torque were recorded using an isokinetic dynamometer. The anterior tibial translation was measured using the Kneelax 3 Arthrometer. The eccentric and concentric motor coordination was tested by multi-joint lower-limb tracking-trajectory test. All measurements were taken 12 months after surgery. Side-to-side differences were determined for all subjects. RESULTS Side-to-side differences in extensor peak torque at 180°/s and 60°/s did not differ between semitendinosus (ST) and semitendinosus + gracilis (STGR) groups (n.s.). However, side-to-side differences in flexor peak torque were significantly higher at 60°/s for the STGR group than the ST group (P = 0.002). Side-to-side differences in eccentric and concentric parts of tracking-trajectory test and anterior tibial translation did not differ between the STGR and the ST groups (n.s.). CONCLUSION The outcomes of this study suggested that additional harvest of gracilis did not influence lower extremity motor control, quadriceps muscle torque, and anterior tibial translation; however, it affected knee flexion isokinetic torque negatively at low angular velocity. This finding could be important for functional activity or sports with high demands on hamstring muscle strength. It is recommended that gracilis muscle should be preserved as possible during ACL reconstruction. LEVEL OF EVIDENCE Prospective comparative study, Level II.
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Nha KW, Shetty GM, Ahn JH, Lee YS, Chae DJ, Nam HW, Lee DH. Augmentation of autologous hamstring graft during anterior cruciate ligament reconstruction using the bone chip technique. Knee Surg Sports Traumatol Arthrosc 2010; 18:89-91. [PMID: 19629435 DOI: 10.1007/s00167-009-0880-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2009] [Accepted: 07/07/2009] [Indexed: 11/30/2022]
Abstract
The use of autologous quadrupled hamstring tendon graft is a well-known technique for anterior cruciate ligament reconstruction. In cases where the diameter of the graft is inadequate, the stability of graft fixation and subsequent bone to tendon healing may be compromised. We describe a new technique to augment the autologous double looped hamstring tendon graft during anterior cruciate ligament reconstruction using cancellous bone chips. This simple technique effectively enhances graft fixation and stability.
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Affiliation(s)
- Kyung Wook Nha
- Department of Orthopedic Surgery, Ilsanpaik Hospital, Inje University, Ilsan, Korea.
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