1
|
Sukopp M, Frey J, Schwer J, Kalbitz M, Ignatius A, Seitz AM. Radial and longitudinal meniscus tears show different gapping patterns under stance phase conditions. J Orthop Res 2024; 42:1134-1144. [PMID: 37986646 DOI: 10.1002/jor.25743] [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: 04/13/2023] [Revised: 10/19/2023] [Accepted: 11/14/2023] [Indexed: 11/22/2023]
Abstract
Meniscal tearing can increase the contact pressure between the tibia and femur by causing gapping of torn meniscus tissue. The aim of this study was to quantify gapping behavior of radial and longitudinal tears and their impact on peak contact pressure and mean contact area. Twelve porcine knee joints underwent unicondylar, convertible osteotomy for exact tear application and consecutive suturing. Six tantalum marker beads were positioned along meniscus tears. The joints were preloaded with sinusoidal loading cycles ranging between 0 N and 350 N. Peak load was held constant and two synchronized Roentgen stereophotogrammetric analysis x-ray images were obtained to evaluate gapping, peak contact pressure and mean contact area in the native, torn and repaired states. There was no change in gapping or peak contact pressure in longitudinal tear. By contrast, the radial tear led to a significant gapping when compared to the native state, while the inside-out suture was able to restore gapping in parts of the meniscus. An increase in contact pressure after radial tear was detected, which was again normalized after suturing. The most important finding of the study is that longitudinal tears did not gap under pure axial loading, whereas radial tears tended to separate the tear interfaces.
Collapse
Affiliation(s)
- Matthias Sukopp
- Institute of Orthopaedic Research and Biomechanics, Ulm University Medical Centre, Ulm, Germany
| | - Julian Frey
- Institute of Orthopaedic Research and Biomechanics, Ulm University Medical Centre, Ulm, Germany
| | - Jonas Schwer
- Institute of Orthopaedic Research and Biomechanics, Ulm University Medical Centre, Ulm, Germany
| | - Miriam Kalbitz
- Department of Trauma and Orthopedic Surgery, University Hospital Erlangen, Erlangen, Germany
| | - Anita Ignatius
- Institute of Orthopaedic Research and Biomechanics, Ulm University Medical Centre, Ulm, Germany
| | - Andreas Martin Seitz
- Institute of Orthopaedic Research and Biomechanics, Ulm University Medical Centre, Ulm, Germany
| |
Collapse
|
2
|
Peña-Trabalon A, Perez-Blanca A, Moreno-Vegas S, Estebanez Campos MB, Prado-Novoa M. Age influence on resistance and deformation of the human sutured meniscal horn in the immediate postoperative period. Front Bioeng Biotechnol 2024; 11:1249982. [PMID: 38249802 PMCID: PMC10796521 DOI: 10.3389/fbioe.2023.1249982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 12/18/2023] [Indexed: 01/23/2024] Open
Abstract
Introduction: To preserve knee function, surgical repair is indicated when a meniscal root disinsertion occurs. However, this surgery has not yet achieved complete recovery of the joint´s natural biomechanics, with the meniscus-suture interface identified as a potentially determining factor. Knowing the deformation and resistance behavior of the sutured meniscal horn and whether these properties are preserved as the patient ages could greatly contribute to improving repair outcomes. Methods: A cadaveric experimental study was conducted on human sutured menisci classified into three n = 22 age groups (young ≤55; 55 < middle-aged ≤75; 75 < old) were subjected to load-to-failure test by suture pulling. Meniscal thickness at the suture hole was measured and the applied traction force and tissue deformation in the suture area in the direction of traction were recorded during the test. The traction load that initiated the meniscal cut-out, F c , maximum load borne by the meniscus, F u , tissue stress at the cut-out initiation, S c , and equivalent stiffness modulus at the suture area, m s , were calculated. Results: At the tissue level, the resistance in terms of S c decrease with age (young: 47.2 MPa; middle-aged: 44.7 MPa; old: 33.8 MPa) being significantly different between the young and the old group (p = 0.015). Mean meniscal thickness increased with age (young: 2.50 mm; middle-aged: 2.92 mm; old: 3.38 mm; p = 0.001). Probably due to thickening, no differences in resistance were found at the specimen level, i.e., in F c (overall mean 58.2 N) and F u (overall mean 73.6 N). As for elasticity, m s was lower in the old group than in the young group (57.5 MPa vs. 113.6 MPa, p = 0.02) and the middle-aged one (57.5 MPa vs. 108.0 MPa, p = 0.04). Conclusion: Regarding the influence of age on the sutured meniscal horn tissue, in vitro experimentation revealed that meniscal horn specimens older than 75 years old had a more elastic tissue which was less resistant to cut-out than younger menisci at the suture hole area. However, a thickening of the meniscal horns with age, which was also found, leveled out the difference in the force that initiated the tear, as well as in the maximum force borne by the meniscus in the load-to-failure test.
Collapse
Affiliation(s)
- Alejandro Peña-Trabalon
- Clinical Biomechanics Laboratory of Andalusia (BIOCLINA), University of Malaga, Málaga, Spain
| | | | | | | | | |
Collapse
|
3
|
Wu D, Zhao X, Wu B, Zhou L, Luo Y, Huang X, Xu W, Wang S. Subregional analysis of joint stiffness facilitates insight into ligamentous laxity after ACL injury. Front Bioeng Biotechnol 2023; 11:1298402. [PMID: 38188490 PMCID: PMC10771831 DOI: 10.3389/fbioe.2023.1298402] [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: 09/21/2023] [Accepted: 12/13/2023] [Indexed: 01/09/2024] Open
Abstract
Purpose: Increased incidence of anterior cruciate ligament injuries has amplified the need for quantitative research in clinical and academic settings. We used a novel digital arthrometer to measure knee laxity in healthy people and patients with anterior cruciate ligament injuries. Changes in stiffness were also assessed to develop new indicators for detecting anterior cruciate ligament injury. The purpose of this study was to use arthrometer to measure the quantitative indicator of knee laxity, bringing clinicians a new perspective on how to identify injury to the ACL. Methods: In this cross-sectional study, anterior tibial displacement under continuous loading was measured using a novel digital arthrometer in 30 patients with unilateral anterior cruciate ligament injury and 30 healthy controls. Load-displacement curves were plotted, using real-time load and displacement changes. Stiffness was defined by the slope of the applied load to tibial displacement. Anterior tibial displacement and instantaneous stiffness values under different loads were compared. The restricting contribution of the anterior cruciate ligament transformed the displacement-stiffness curve from a sharp decrease to a stable increase, resulting in a minimum stiffness value. Using the minimum stiffness as the turning point, the load-displacement curve was divided into regions 1 and 2. The two regions' stiffness changes were compared. Based on the findings, receiver operating characteristic curves were plotted and the area under the curve was calculated to estimate the diagnostic accuracy. Results: Anterior tibial displacement was significantly greater in the anterior cruciate ligament injury group than in the controls under each 10-N increase load (p < 0.05). In the anterior cruciate ligament injury group, instantaneous stiffness was significantly lower on the injured side than on the healthy side (p < 0.05). In the two regions of the load-displacement curve, stiffness was significantly lower in the anterior cruciate ligament injury group than in the control group (all, p < 0.05). Receiver operating characteristic curves were plotted, using changes in stiffness under the two regions in both groups. Stiffness in region 2 had the largest area under the curve (0.94; 95% CI, 0.88-0.99). Using the cut-off value of 9.62 N/mm to detect ACL injury, the sensitivity and specificity were 93% and 82%, respectively. Conclusion: Our investigation of ligament stiffness provides novel insights into the properties of knee laxity. Stiffness in the later stages of increased loading <9.62 N/mm could be a valid indicator for identifying knee laxity.
Collapse
Affiliation(s)
- Danni Wu
- Key Laboratory of Exercise and Health Sciences of Ministry of Education, Shanghai University of Sport, Shanghai, China
| | - Xuan Zhao
- Key Laboratory of Exercise and Health Sciences of Ministry of Education, Shanghai University of Sport, Shanghai, China
| | - Bin Wu
- Department of Orthopedics, Changhai Hospital, The Navy Medical University, Shanghai, China
| | - Lan Zhou
- Key Laboratory of Exercise and Health Sciences of Ministry of Education, Shanghai University of Sport, Shanghai, China
| | - Ye Luo
- Key Laboratory of Exercise and Health Sciences of Ministry of Education, Shanghai University of Sport, Shanghai, China
| | - Xiaofan Huang
- Key Laboratory of Exercise and Health Sciences of Ministry of Education, Shanghai University of Sport, Shanghai, China
| | - Weidong Xu
- Department of Orthopedics, Changhai Hospital, The Navy Medical University, Shanghai, China
| | - Shaobai Wang
- Key Laboratory of Exercise and Health Sciences of Ministry of Education, Shanghai University of Sport, Shanghai, China
| |
Collapse
|
4
|
Rocha de Faria JL, Santos APG, Pavão DM, Radulski M, Leal AC, More ADO, Mozella ADP, Guimarães JAM, LaPrade RF, Roesler CRDM, Salim R. Continuous Vertical Inside-Out Versus Traditional Vertical Inside-Out Meniscal Repair: A Biomechanical Comparison. Orthop J Sports Med 2023; 11:23259671231209951. [PMID: 38021309 PMCID: PMC10644761 DOI: 10.1177/23259671231209951] [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: 03/02/2023] [Accepted: 06/02/2023] [Indexed: 12/01/2023] Open
Abstract
Background Biomechanical assessment of meniscal repairs is essential for evaluating different meniscal suturing methods and techniques. The continuous meniscal suture technique is a newer method of meniscal repair that may have biomechanical differences compared with traditional techniques. Purpose To evaluate the displacement, stiffness after cyclical loading, and load to failure for a continuous vertical inside-out meniscal suture versus a traditional vertical inside-out meniscal suture in a porcine medial meniscus. Study Design Controlled laboratory study. Methods A total of 28 porcine knees were acquired and divided into 2 test groups of 14 medial meniscus each. A 2.0-cm longitudinal red-white zone cut was made in the body of the medial meniscus for each knee. The continuous suture (CS) group received 4 vertical stitches performed with a continuous vertical meniscal suture technique, and the inside-out suture (IO) group received a traditional vertical suture with 4 stitches. Two traction tapes were passed between the sutures and positioned in the biomechanical testing fixture device. Each specimen underwent load-to-failure testing at 5 mm/s, and displacement, system stiffness, and maximum load to failure were compared between the groups. Results The displacement after the cyclic test was 0.53 ± 0.12 and 0.48 ± 0.07 mm for the CS and IO groups, respectively. There was no significant difference between the groups (P = .2792). The stiffness at the ultimate load testing was 36.3 ± 1.9 and 35.3 ± 2.4 N/mm for groups CS and IO, respectively, with no significant difference between the groups (P = .2557). In the load-to-failure test, the ultimate load was 218.2 ± 63.9 and 238.3 ± 71.3 N in the CS and IO groups, respectively, with no significant group differences (P = .3062). Conclusion A continuous vertical meniscal suture created a configuration for treating longitudinal meniscal lesions that was beneficial and biomechanically similar to a traditional vertical suture technique. Clinical Relevance The study findings indicate that use of the continuous vertical inside-out meniscal suture technique is a possible therapeutic option.
Collapse
Affiliation(s)
- José Leonardo Rocha de Faria
- Knee Surgery Center, National Institute of Traumatology and Orthopedics (INTO), Rio de Janeiro, Brazil
- School of Medicine from University of São Paulo (USP), Ribeirão Preto, São Paulo, Brazil
| | - Arthur Paiva Grimaldi Santos
- Biomechanical Engineering Laboratory of Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Douglas Mello Pavão
- Knee Surgery Center, National Institute of Traumatology and Orthopedics (INTO), Rio de Janeiro, Brazil
- School of Medicine from University of São Paulo (USP), Ribeirão Preto, São Paulo, Brazil
| | - Mariana Radulski
- Medical School of Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Ana Carolina Leal
- Research Division, National Institute of Traumatology and Orthopedics (INTO), Rio de Janeiro, Brazil
| | - Ari Digiácomo Ocampo More
- Biomechanical Engineering Laboratory of Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
- Medical School of Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Alan de Paula Mozella
- Knee Surgery Center, National Institute of Traumatology and Orthopedics (INTO), Rio de Janeiro, Brazil
- School of Medicine from University of São Paulo (USP), Ribeirão Preto, São Paulo, Brazil
| | | | - Robert F LaPrade
- Twin Cities Orthopaedics, Edina, Minnesota, USA
- University of Minnesota Medical School, Minneapolis, Minnesota, USA
| | | | - Rodrigo Salim
- School of Medicine from University of São Paulo (USP), Ribeirão Preto, São Paulo, Brazil
| |
Collapse
|
5
|
Massey PA, Sampognaro G, Starnes E, Lowery MT, Duncan M, Sherman WF, Zhang AS. Improved Outcomes After Reinforced Radial Meniscus Repair Augmented With Bone Marrow Aspirate Concentrate. Arthrosc Sports Med Rehabil 2023; 5:e843-e851. [PMID: 37388894 PMCID: PMC10300602 DOI: 10.1016/j.asmr.2023.04.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 04/21/2023] [Indexed: 07/01/2023] Open
Abstract
Purpose To assess clinical outcomes of patients who have undergone surgical repair of radial meniscal tears with reinforced suture bar (rebar) technique augmented with bone marrow aspirate concentrate. Methods This is a retrospective study of a single fellowship-trained sports medicine surgeon's experience on all patients who underwent a reinforced repair (rebar) of a radial meniscus tear from November 2016 to 2018, with a minimum of 12-month follow-up. Lysholm scores, IKDC (International Knee Documentation Committee) Subjective Knee Form scores, and Tegner scale were collected postoperatively at periods for at least 1 year and retrospectively studied. Results Patients were followed for an average of 36.3 ± 25.0 months [range: 12.0-69.0 months]. Pain scores improved from 6.1 ± 2.1 to 0.4 ± 1.4 at 1 year (P < .001). IKDC Subjective Knee Form scores improved from 63 ± 26 to 90 ± 13 (P = .021). Lysholm scores improved from 64 ± 28 to 94 ± 9 (P = .025). Based on a calculated minimal clinical important difference (MCID) of 1.5, 100% of patients had improvement above the MCID. In addition, 88% of patients had a 1-year IKDC Subjective Knee Form score above the patient acceptable symptomatic state. Preoperative Tegner activity scale improved from 3 ± 1.5 to 8 ± 2.6 (P = .007). Patients returned to their preinjury activity with little difference in the Tegner activity scale when we compared preinjury and 1-year postoperative (8.1 ± 1.3 vs 8.0 ± 2.6 respectively, P = .317). Conclusions The rebar repair technique for radial meniscus tears, with bone marrow aspirate concentrate augmentation, showed improved outcomes in both pain and function at minimum follow-up of 12 months. Patients were able to return to a high preinjury activity level by 1 year, and 100% of patients had improvement above the MCID and 88% met patient acceptable symptomatic state. Level of Evidence Level IV, therapeutic case series.
Collapse
Affiliation(s)
- Patrick A. Massey
- Department of Orthopaedic Surgery, Louisiana State University Health Sciences Center, Shreveport, Louisiana, USA
| | - Gabriel Sampognaro
- Department of Orthopaedic Surgery, Louisiana State University Health Sciences Center, Shreveport, Louisiana, USA
| | - Ellie Starnes
- Louisiana State University School of Medicine, Louisiana State University Health Sciences Center, Shreveport, Louisiana, USA
| | - Michael Todd Lowery
- Department of Orthopaedic Surgery, Louisiana State University Health Sciences Center, Shreveport, Louisiana, USA
| | | | - William F. Sherman
- Department of Orthopaedic Surgery, Tulane University, New Orleans, Louisiana, USA
| | - Andrew S. Zhang
- Department of Orthopaedic Surgery, Louisiana State University Health Sciences Center, Shreveport, Louisiana, USA
| |
Collapse
|
6
|
Bansal S, Floyd ER, Kowalski MA, Aikman E, Elrod P, Burkey K, Chahla J, LaPrade RF, Maher SA, Robinson JL, Patel JM. Meniscal repair: The current state and recent advances in augmentation. J Orthop Res 2021; 39:1368-1382. [PMID: 33751642 PMCID: PMC8249336 DOI: 10.1002/jor.25021] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 02/04/2021] [Accepted: 03/02/2021] [Indexed: 02/04/2023]
Abstract
Meniscal injuries represent one of the most common orthopedic injuries. The most frequent treatment is partial resection of the meniscus, or meniscectomy, which can affect joint mechanics and health. For this reason, the field has shifted gradually towards suture repair, with the intent of preservation of the tissue. "Save the Meniscus" is now a prolific theme in the field; however, meniscal repair can be challenging and ineffective in many scenarios. The objectives of this review are to present the current state of surgical management of meniscal injuries and to explore current approaches being developed to enhance meniscal repair. Through a systematic literature review, we identified meniscal tear classifications and prevalence, approaches being used to improve meniscal repair, and biological- and material-based systems being developed to promote meniscal healing. We found that biologic augmentation typically aims to improve cellular incorporation to the wound site, vascularization in the inner zones, matrix deposition, and inflammatory relief. Furthermore, materials can be used, both with and without contained biologics, to further support matrix deposition and tear integration, and novel tissue adhesives may provide the mechanical integrity that the meniscus requires. Altogether, evaluation of these approaches in relevant in vitro and in vivo models provides new insights into the mechanisms needed to salvage meniscal tissue, and along with regulatory considerations, may justify translation to the clinic. With the need to restore long-term function to injured menisci, biologists, engineers, and clinicians are developing novel approaches to enhance the future of robust and consistent meniscal reparative techniques.
Collapse
Affiliation(s)
- Sonia Bansal
- University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | | | | | | | | | - Kyley Burkey
- University of Kansas Medical Center, Kansas City, Kansas, USA
| | | | | | | | | | - Jay M. Patel
- Emory University, Atlanta, Georgia, USA
- Atlanta VA Medical Center, Decatur, Georgia, USA
| |
Collapse
|
7
|
Feltz K, Brown A, Hanish S, Gan Y, Ma R. An Arthroscopic-Assisted Radial Meniscal Tear Repair Using Reinforced Suture Tape Rebars and Suture Tapes. Arthrosc Tech 2021; 10:e1395-e1401. [PMID: 34141559 PMCID: PMC8185810 DOI: 10.1016/j.eats.2021.01.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 01/29/2021] [Indexed: 02/03/2023] Open
Abstract
A radial tear of the meniscus can lead to significant loss of meniscus function, resulting in deleterious cartilage changes. Repair of radial meniscus tears has several challenges, including suture pull-out, which can reduce healing success. We present an arthroscopic repair technique in a complete radial lateral meniscus tear using vertical reinforced bars (rebar) of suture tapes to reduce suture pull-out and approximate the radial tear.
Collapse
Affiliation(s)
- Kevin Feltz
- University of Missouri School of Medicine, Columbia, Missouri, U.S.A
| | - Aaron Brown
- University of Missouri School of Medicine, Columbia, Missouri, U.S.A
| | - Stefan Hanish
- University of Missouri School of Medicine, Columbia, Missouri, U.S.A
| | - Yudong Gan
- Qilu Hospital, Shandong University, Qingdao, China
| | - Richard Ma
- University of Missouri School of Medicine, Columbia, Missouri, U.S.A.,Missouri Orthopaedic Institute, Thompson Laboratory for Regenerative Orthopaedics, University of Missouri–Columbia, Columbia, Missouri, U.S.A.,Address correspondence to Richard Ma, M.D., Missouri Orthopaedic Institute, Thompson Laboratory for Regenerative Orthopaedics, University of Missouri – Columbia, 1100 Virginia Ave., DC953.00, Columbia, MO 65212.
| |
Collapse
|
8
|
Lin JS, Akers A, Miller TL. Updates and Advances in the Management of Lateral Meniscal Radial Tears: A Critical Analysis Review. JBJS Rev 2020; 8:e2000056. [PMID: 33186207 DOI: 10.2106/jbjs.rvw.20.00056] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Because of their increased mobility, lack of resistance to hoop stresses, and decreased blood supply, radial tears of the lateral meniscus are more troublesome to heal than vertical longitudinal tears. Given the success of meniscal root repairs, radial tears of the lateral meniscal body should be given strong consideration for repair because of a more reproducible ability to heal such lesions in young, active patients. Technique options that should be considered for the less common anterior radial tears of the lateral meniscus include outside-in repair, self-capturing suture-passing devices, and orthobiologic treatments to stimulate healing. Although a variety of suture techniques, including the double horizontal mattress and horizontal butterfly patterns, have demonstrated improvements in patient outcomes, evidence is still limited with regard to the ideal suture pattern for radial tears.
Collapse
Affiliation(s)
- James S Lin
- Department of Orthopaedics, Wexner Medical Center, The Ohio State University, Columbus, Ohio
| | - Allison Akers
- College of Medicine and Public Health, The Ohio State University, Columbus, Ohio
| | - Timothy L Miller
- Department of Orthopaedics, Wexner Medical Center, The Ohio State University, Columbus, Ohio.,Jameson Crane Sports Medicine Institute, Wexner Medical Center, The Ohio State University, Columbus, Ohio
| |
Collapse
|
9
|
The all-inside all-suture technique demonstrated better biomechanical behaviors in meniscus radial tear repair. Knee Surg Sports Traumatol Arthrosc 2020; 28:3606-3612. [PMID: 32514843 DOI: 10.1007/s00167-020-06078-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Accepted: 05/20/2020] [Indexed: 10/24/2022]
Abstract
PURPOSE The purpose of this study was to evaluate the effectiveness of three constructs and techniques for repair of radial tears of the meniscus. METHODS Thirty fresh frozen porcine menisci were divided equally into three groups consisting of (1) inside-out repair group, (2) a commonly used all-inside suture with anchor hybrid repair construct (AISAH) (Meniscal Cinch™), and (3) an all-inside all-suture repair construct (AIAS) (Knee Scorpion™). Radial tears were created and repaired and then the menisci were secured to the materials testing machine. Both cyclic loading and load-to-failure testing were performed. The displacement, stiffness, response to cyclic loading, and mode of failure were recorded and analyzed statistically. RESULTS The displacement after cyclic loading (DACL) of the Cinch repair construct group was significantly higher than that of the inside-out repair construct group (p = 0.000) and AIAS repair construct (p = 0.000). There was not a statistical difference of DACL between inside-out and AIAS groups (n.s.). The inside-out construct failed at a significantly higher load than the AISAH repair construct (p = 0.000) and AIAS construct (p = 0.006). The AIAS construct failed at a significantly higher load than the AISAH repair construct (p = 0.009). The AIAS had a higher stiffness than AISAH (p = 0.047). The AIAS had a higher load at 3 mm protrusion than AISAH (p = 0.034). CONCLUSION The AIAS repair construct had better biomechanical behaviors than AISAH construct and inside-out repair technique. Inside-out sutures and AIAS repair construct had similar biomechanical responses to cyclic loading. The AIAS can be used for meniscus tear surgical repair with less damage to peri-meniscus tissues.
Collapse
|
10
|
Hang G, Yew AKS, Chou SM, Wong YR, Tay SC, Lie DTT. Biomechanical comparison of vertical suture techniques for repairing radial meniscus tear. J Exp Orthop 2020; 7:77. [PMID: 33025241 PMCID: PMC7538523 DOI: 10.1186/s40634-020-00296-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 09/24/2020] [Indexed: 02/07/2023] Open
Abstract
Purpose The aim of this study was to (1) develop suture techniques in repairing radial meniscal tear; (2) to compare the biomechanical properties of the proposed repair techniques with the conventional double horizontal technique. Methods Thirty-six fresh-frozen porcine medial menisci were randomly assigned into four groups and a complete tear was made at the midline of each meniscus. The menisci were subsequently repaired using four different repair techniques: double vertical (DV), double vertical cross (DVX), hybrid composing one vertical and one horizontal stitch, and conventional double horizontal (DH) suture technique with suturing parallel to the tibia plateau. The conventional double horizontal group was the control. The repaired menisci were subjected to cyclic loading followed by the load to failure testing. Gap formation and strength were measured, stiffness was calculated, and mode of failure was recorded. Results Group differences in gap formation were not statistically significant at 100 cycles (p = .42), 300 cycles (p = .68), and 500 cycles (p = .70). A trend was found toward higher load to failure in DVX (276.8 N, p < .001), DV (241.5 N, p < .001), and Hybrid (237.6 N, p < .001) compared with DH (148.5 N). Stiffness was also higher in DVX (60.7 N/mm, p < .001), DV (55.3 N/mm, p < .01), and Hybrid (52.1 N/mm, p < .01), than DH group (30.5 N/mm). Tissue failure was the only failure mode observed in all specimens. Conclusion Our two proposed vertical suture techniques, as well as the double vertical technique, had superior biomechanical properties than the conventional technique as demonstrated by higher stiffness and higher strength.
Collapse
Affiliation(s)
- Guanqi Hang
- Department of Orthopaedic Surgery, Singapore General Hospital, 20 College Road, Singapore, 169865, Singapore.
| | - Andy Khye Soon Yew
- Department of Orthopaedic Surgery, Singapore General Hospital, 20 College Road, Singapore, 169865, Singapore
| | - Siaw Meng Chou
- School of Mechanical & Aerospace Engineering, College of Engineering, Nanyang Technological University, 50 Nanyang Ave, Singapore, 639798, Singapore
| | - Yoke Rung Wong
- Department of Hand Surgery, Singapore General Hospital, 20 College Road, Singapore, 169865, Singapore
| | - Shian Chao Tay
- Department of Hand Surgery, Singapore General Hospital, 20 College Road, Singapore, 169865, Singapore
| | - Denny Tijauw Tjoen Lie
- Department of Orthopaedic Surgery, Singapore General Hospital, 20 College Road, Singapore, 169865, Singapore
| |
Collapse
|
11
|
Zhang ZZ, Zhou YF, Luo H, Zhang HZ, Chen Z, Jiang C, Hou JY, Yang R, Song B, Li WP. A novel surgical technique for arthroscopic repair of type II posterior lateral meniscal root tear. Knee 2020; 27:1560-1566. [PMID: 33010774 DOI: 10.1016/j.knee.2020.07.100] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Revised: 07/17/2020] [Accepted: 07/30/2020] [Indexed: 02/02/2023]
Abstract
BACKGROUND Several suture repair techniques have been reported for radial tear close to the posterior lateral meniscal root (type II PLMRT). However, no study has evaluated the clinical results after repair using the FasT-Fix system. This paper describes a novel H-plasty surgical repair technique and reports its clinical results. METHODS From January 2015 to January 2017, 47 patients underwent repair of type II PLMRT with concomitant anterior cruciate ligament reconstruction and were included in this study. Assessments performed preoperatively and at final follow-up included the Lysholm score, subjective International Knee Documentation Committee (IKDC) score, and knee stability assessments (pivot-shift test, Lachman test, KNEELAX arthrometer side-to-side difference). Magnetic resonance imaging was used to compare the lateral meniscal extrusion pre- versus postoperatively. Second-look arthroscopy was performed to evaluate the meniscal healing in 38 cases. RESULTS Forty-seven patients were followed up for an average of 30.7 months (range 18-46 months). No patients experienced meniscal mechanical symptoms. At final follow-up, there were significant improvements in the Lysholm score, IKDC score, knee stability assessments, and lateral meniscal extrusion compared with the preoperative values. In the 38 of 47 patients that underwent second-look arthroscopy after an average of 17.5 months (range 14-19 months), all repairs (100%) were completely healed. CONCLUSIONS The novel H-plasty repair using the FasT-Fix system was an effective surgical treatment for type II PLMRT. Considering the satisfactory clinical results and the convenience of the surgery, H-plasty repair is recommended to be used preferentially.
Collapse
Affiliation(s)
- Zheng-Zheng Zhang
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, PR China.
| | - Yun-Feng Zhou
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, PR China
| | - Huan Luo
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, PR China; Department of Orthopedics, Jiangmen Central Hospital, Jiangmen 529030, PR China
| | - Hao-Zhi Zhang
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, PR China
| | - Zhong Chen
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, PR China
| | - Chuan Jiang
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, PR China
| | - Jing-Yi Hou
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, PR China
| | - Rui Yang
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, PR China
| | - Bin Song
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, PR China.
| | - Wei-Ping Li
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, PR China.
| |
Collapse
|
12
|
Nakanishi Y, Hoshino Y, Nagamune K, Yamamoto T, Nagai K, Araki D, Kanzaki N, Matsushita T, Kuroda R. Radial Meniscal Tears Are Best Repaired by a Modified "Cross" Tie-Grip Suture Based on a Biomechanical Comparison of 4 Repair Techniques in a Porcine Model. Orthop J Sports Med 2020; 8:2325967120935810. [PMID: 32728592 PMCID: PMC7366409 DOI: 10.1177/2325967120935810] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Accepted: 12/23/2019] [Indexed: 11/16/2022] Open
Abstract
Background: The tie-grip suture can fix radial tears more rigidly than simple conventional sutures. However, one shortcoming is the residual gap at the central margin of the tear. The tie-grip suture was modified to address this issue and named the “cross tie-grip suture.” Purpose/Hypothesis: The purpose of this study was to compare the suture stability and strength among 4 suturing techniques: the original tie-grip, cross tie-grip, and 2 conventional sutures (double horizontal and cross). It was hypothesized that the cross tie-grip suture would show the least displacement and resist the greatest maximum load. Study Design: Controlled laboratory study. Methods: A total of 40 fresh-frozen porcine knees were dissected to acquire 80 menisci; 20 menisci were tested in each suture group. A radial tear was created at the middle third of the meniscal body. Repair was performed with the following: original tie-grip, cross tie-grip, double horizontal, and cross sutures. The mechanical strength of sutured menisci was evaluated using a tensile testing machine. All menisci underwent submaximal loading and load to failure. The gap distance and ultimate failure load were compared using analysis of variance. The failure mode was recorded after load-to-failure testing. Results: Displacement after 500 cycles was significantly smaller in the cross tie-grip group (0.4 ± 0.3 mm) compared with the tie-grip (0.9 ± 0.6 mm), double horizontal (1.2 ± 0.7 mm), and cross suture groups (1.4 ± 0.6 mm) (P < .05). The ultimate failure load was significantly greater in the cross tie-grip (154.9 ± 29.0 N) and tie-grip (145.2 ± 39.1 N) groups compared with the double horizontal (81.2 ± 19.9 N) and cross suture groups (87.3 ± 17.7 N) (P < .05). Tissue failure was the most common mode of failure in all groups. Conclusion: Upon repair of radial meniscal tears, the cross tie-grip suture showed less displacement compared with that of the tie-grip, double horizontal, and cross sutures and demonstrated equivalent load to failure to that of the tie-grip suture at time zero. Clinical Relevance: The cross tie-grip suture provided high resistance to displacement after repair of radial tears and may be advantageous in healing for radial meniscal tears.
Collapse
Affiliation(s)
- Yuta Nakanishi
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yuichi Hoshino
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Kouki Nagamune
- Department of Human and Artificial Intelligent Systems, Graduate School of Engineering, University of Fukui, Fukui, Japan
| | - Tetsuya Yamamoto
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Kanto Nagai
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Daisuke Araki
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Noriyuki Kanzaki
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takehiko Matsushita
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Ryosuke Kuroda
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| |
Collapse
|
13
|
Rebar Repair of Radial Meniscus Tears: A Reinforced Suture Technique. Arthrosc Tech 2020; 9:e953-e957. [PMID: 32714804 PMCID: PMC7372502 DOI: 10.1016/j.eats.2020.03.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Accepted: 03/14/2020] [Indexed: 02/03/2023] Open
Abstract
The purpose of this paper is to describe the rebar repair as a technique for repair of radial meniscus tears and compare the rebar technique with current techniques used for meniscus repairs. This technique consists of 4 sutures placed with the inside-out technique. First, the vertical mattress reinforcement sutures are placed anteriorly and posteriorly to the tear. Then, 2 parallel horizontal sutures are placed directly in juxtaposition to the vertical sutures, ensuring the needles pass on the side of the reinforcing stitch away from the tear. This technique is less technically challenging than other meniscus repair techniques that require drilling of a transtibial tunnel. Overall, the rebar technique offers a more optimal way for stabilizing the meniscus by using 2 reinforcement sutures that run with the circumferential fibers to help restore the natural hoop stress of the meniscus. Also, the placement of the vertical mattress sutures in the rebar technique offers more direct reinforcement to the horizontal mattress sutures as compared with other techniques, which reduces the risk of pull-out tears.
Collapse
|