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Pasurka M, Falck T, Kubach J, Simon M, Söllner S, Strobel D, Perl M, Betsch M. Comparison of In Vivo Stiffness of Tendons Commonly Used for Anterior Cruciate Ligament Reconstruction - A Shear Wave Elastography Study. Acad Radiol 2024; 31:3297-3305. [PMID: 38378326 DOI: 10.1016/j.acra.2024.01.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 01/25/2024] [Accepted: 01/27/2024] [Indexed: 02/22/2024]
Abstract
RATIONALE AND OBJECTIVES There are currently no studies investigating the in vivo stiffness of the most commonly used autografts for anterior cruciate ligament reconstruction (ACLR) using Shear wave elastography (SWE). We hypothesize that there are differences regarding the elastic properties between the three tendons commonly used for ACLR and that they are influenced by patient-related factors. MATERIALS AND METHODS 80 healthy subjects (25 females, 55 males, age: 25.33 ± 4.76 years, BMI: 23.76 ± 3.14 kg/m2, 40 semiprofessional athletes, athlete group [AG], age: 25.51 [19-29]; 40 healthy controls, control group [CG], age: 25.50 [20-29]) were recruited as participants. In addition to patient reported outcome scores, every participant underwent a standardized multimodal ultrasound protocol consisting of B-mode-ultrasound (B-US), Color Doppler-ultrasound (CD-US) and a SWE examination of the bilateral quadriceps tendon (QT), patellar tendon (PT) and semitendinosus tendon (ST). RESULTS The highest shear wave velocity (SWV) were observed in ST (4.88 (4.35-5.52) m/s, ST vs QT, p = 0.005; ST vs PT, p < 0.001) followed by QT (4.61 (4.13-5.26) m/s, QT vs PT, p < 0.001) and PT (3.73 (3.30-4.68) m/s). Median QT, PT and ST stiffness was significantly higher in AG compared to CG. Male subjects tend to have stiffer QT and PT than female subjects. Positive correlation with SWV was obtained for age and activity level. CONCLUSION There are significant differences regarding in vivo tendon stiffness between the most frequently used autograft tendon options for ACLR. The quantitative information obtained by SWE could be of particular interest for graft choice for ACLR.
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Affiliation(s)
- Mario Pasurka
- Department of Orthopaedics and Trauma Surgery, University Hospital of Erlangen, Friedrich-Alexander-University Erlangen-Nuremberg, Krankenhausstrasse 12, 91054 Erlangen, Germany.
| | - Theo Falck
- Department of Orthopaedics and Trauma Surgery, University Hospital of Erlangen, Friedrich-Alexander-University Erlangen-Nuremberg, Krankenhausstrasse 12, 91054 Erlangen, Germany
| | - Joshua Kubach
- Department of Orthopaedics and Trauma Surgery, University Hospital of Erlangen, Friedrich-Alexander-University Erlangen-Nuremberg, Krankenhausstrasse 12, 91054 Erlangen, Germany
| | - Michael Simon
- Department of Orthopaedics and Trauma Surgery, University Hospital of Erlangen, Friedrich-Alexander-University Erlangen-Nuremberg, Krankenhausstrasse 12, 91054 Erlangen, Germany
| | - Stefan Söllner
- Department of Orthopaedics and Trauma Surgery, University Hospital of Erlangen, Friedrich-Alexander-University Erlangen-Nuremberg, Krankenhausstrasse 12, 91054 Erlangen, Germany
| | - Deike Strobel
- Department of Medicine 1, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nuremberg, Ulmenweg 18, 91054 Erlangen, Germany
| | - Mario Perl
- Department of Orthopaedics and Trauma Surgery, University Hospital of Erlangen, Friedrich-Alexander-University Erlangen-Nuremberg, Krankenhausstrasse 12, 91054 Erlangen, Germany
| | - Marcel Betsch
- Department of Orthopaedics and Trauma Surgery, University Hospital of Erlangen, Friedrich-Alexander-University Erlangen-Nuremberg, Krankenhausstrasse 12, 91054 Erlangen, Germany
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Hoffer AJ, Peck GK, Leith J, McConkey M, Lodhia P. Single bundle hamstrings autograft preparation techniques for anterior cruciate ligament reconstruction: current concepts. Arch Orthop Trauma Surg 2024; 144:3185-3196. [PMID: 38953941 DOI: 10.1007/s00402-024-05412-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Accepted: 06/21/2024] [Indexed: 07/04/2024]
Abstract
Anterior cruciate ligament reconstruction (ACLR) is one of the most common orthopedic procedures, and huge variation exists in the surgical technique. Single bundle hamstrings autograft reconstruction is a common method and has good clinical outcomes. A criticism of the hamstrings autograft is a small graft diameter, often less than 8-mm, which has been associated with increased re-rupture rates. Several graft preparation techniques for single bundle hamstrings autograft exist. Perioperative decisions include the number of tendons utilized, number of graft strands, graft configuration, and femoral and tibial fixation methods. Awareness of the minimum tendon and graft length required to produce each graft variation is necessary to avoid common pitfalls. However, intraoperative graft modification is possible to maximize graft diameter, and obtain proper fixation. The objective of this current concepts review is to describe the indications, surgical anatomy, technique, intraoperative tips, clinical outcomes, and complications for single bundle hamstrings autograft preparation techniques in ACLR.
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Affiliation(s)
- Alexander J Hoffer
- Department of Surgery, University of Western Ontario, 1151 Richmond St, London, ON, N6A 3K7, Canada
| | - Gina K Peck
- Department of Orthopaedics, University of British Columbia, Gordon and Leslie Diamond Health Care Centre 11th floor - 2775 Laurel Street, Vancouver, BC, V5Z 1M9, Canada
| | - Jordan Leith
- Department of Orthopaedics, University of British Columbia, Gordon and Leslie Diamond Health Care Centre 11th floor - 2775 Laurel Street, Vancouver, BC, V5Z 1M9, Canada
| | - Mark McConkey
- Department of Orthopaedics, University of British Columbia, Gordon and Leslie Diamond Health Care Centre 11th floor - 2775 Laurel Street, Vancouver, BC, V5Z 1M9, Canada
| | - Parth Lodhia
- Department of Orthopaedics, University of British Columbia, Gordon and Leslie Diamond Health Care Centre 11th floor - 2775 Laurel Street, Vancouver, BC, V5Z 1M9, Canada.
- Fraser Orthopaedic Institute, 403-233 Nelson's Crescent, New Westminster, BC, V3L 0E4, Canada.
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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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Henkelman E, Ayres JM, Prô SL. MRI Accurately Predicts Quadrupled Semitendinosus Autograft Size Using Posterior Hamstring Harvest for ACL Reconstruction. Arthrosc Sports Med Rehabil 2024; 6:100844. [PMID: 38706973 PMCID: PMC11065659 DOI: 10.1016/j.asmr.2023.100844] [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: 05/11/2023] [Accepted: 11/07/2023] [Indexed: 05/07/2024] Open
Abstract
Purpose To determine the effectiveness of preoperative magnetic resonance imaging (MRI) measurements of the cross-sectional area (CSA) of the semitendinosus tendon in predicting the intraoperative quadrupled semitendinosus graft diameter of a posteriorly harvested hamstring autograft for anterior cruciate ligament (ACL) reconstruction. Methods A retrospective review of patients who underwent ACL reconstruction with autograft using a posterior hamstring harvest was performed. Patient demographics and operative reports were reviewed, and measurements of the CSA of the semitendinosus on MRI were performed. Multiple linear regression was used to analyze the predictors for graft diameter. A P value < .05 was considered statistically significant. Interrater and intrarater reliability were calculated. Results 280 patients were included. Patient height (P < .0001), and CSA of the semitendinosus (P < .0001) were significant predictors. Patients shorter than 63 inches had an average graft diameter of 7.89 mm compared to 8.69 mm for patients above 63 in (P < .001). The formula for the model is as follows: Graft diameter (mm2) = 2.74 + .067·Height (in) + .00009 · Weight (lbs) + .0018 · Age (years) +.12·Gender (1 if M, 0 if F) + 8.56 · CSA (cm2). The R2 for the model (0.5620), was greater than models using only height (R2 = .4092) or only CSA Semitendinosus (R2 = .3932). None of the interaction terms between covariates (e.g., height, weight, age, gender) were significant. Age (P =.6400), weight (P = .9970), and gender (P = .6700) were not significant predictors. Both intraclass (ICC = 0.864, 95% CI=[0.791, 0.912]) and interclass correlation (ICC=0.827, 95% CI=[0.715, 0.894]) showed good reliability. Conclusion CSA semitendinosus tendon and patient height independently perform similarly as predictors of graft diameter. When used together, CSA and height accurately predict the graft diameter. In particular, for patients under 63 in tall who demonstrated an average graft diameter below the minimum 8 mm, as suggested by the literature, this may be a useful tool for preoperative planning of patients intending to undergo ACL reconstruction with posterior hamstring harvest. Level of Evidence Level III, diagnostic: retrospective cohort study.
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Affiliation(s)
- Erik Henkelman
- University of Kansas Medical Center, Kansas City, Kansas, U.S.A
| | - Jack M. Ayres
- University of Kansas Medical Center, Kansas City, Kansas, U.S.A
- Prisma Health/University of South Carolina School of Medicine, Columbia, South Carolina, U.S.A
| | - Stephan L. Prô
- University of Kansas Medical Center, Kansas City, Kansas, U.S.A
- OrthoKansas, Lawrence Memorial Hospital, Lawrence, Kansas, U.S.A
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Klein B, Bartlett LE, Huyke-Hernandez FA, Tauro TM, Landman F, Cohn RM, Sgaglione NA. Analysis of Changing Practice Trends in Anterior Cruciate Ligament Reconstruction: A Multicenter, Single-Institution Database Analysis. Arthroscopy 2024:S0749-8063(24)00169-5. [PMID: 38447628 DOI: 10.1016/j.arthro.2024.02.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 02/24/2024] [Accepted: 02/24/2024] [Indexed: 03/08/2024]
Abstract
PURPOSE To identify trends in anterior cruciate ligament reconstruction (ACLR), including graft choice, femoral tunnel drilling techniques, and augmentation techniques, and to assess how various surgeon factors impact these trends. METHODS A retrospective review of primary ACLRs performed between 2014 and 2022 was completed using a multicenter institutional database. Patient demographic characteristics, graft type, femoral drilling technique, use of extra-articular tenodesis, and use of suture augmentation were recorded from the medical record. Surgeon fellowship training (sports trained vs non-sports trained), experience (high [minimum of 15 years in practice] vs low), and volume (high [minimum of 15 ACLRs/year] vs low) were used to stratify technique utilization. The z test for proportions was used to compare categorical variables. Pearson correlation analyses identified trends and assessed statistical significance, defined as P < .05. RESULTS Our cohort consisted of 2,032 ACLRs performed in 2,006 patients. The average patient age was 28.3 ± 11.6 years, with more procedures performed in male patients (67.3%). The average length of surgeon experience was 19.7 ± 11.4 years, with an average annual procedural volume of 4.0 ± 5.4 ACLRs. Most surgeons were sports trained (n = 55, 64.7%), high experience (n = 44, 57.1%), and low volume (n = 80, 94.1%). There was an increasing annual proportion of ACLRs performed by sports-trained surgeons (R = 0.748, P = .020) and low-experience surgeons (R = 0.940, P < .001). Autograft reconstructions were most often performed by sports-trained (71.2%), low-experience (66.1%), and high-volume (76.9%) surgeons. There was an increasing proportion of autograft ACLRs that used quadriceps tendon among sports-trained (R = 0.739, P = .023), high-experience (R = 0.768, P = .016), and low-volume (R = 0.785, P = .012) surgeons. Independent drilling techniques were used in an increasing proportion of ACLRs performed by non-sports-trained (R = 0.860, P = .003) and high-volume (R = 0.864, P = .003) surgeons. Augmentation of ACLR with concomitant suture augmentation (n = 24, 1.2%) or extra-articular tenodesis (n = 6, 0.3%) was rarely performed. CONCLUSIONS In our multicenter institution, the quadriceps tendon autograft has been increasingly used in ACLR by sports-trained, low-volume, and high-experience surgeons. Independent drilling techniques have been increasingly used by non-sports-trained and high-volume surgeons. CLINICAL RELEVANCE Surgeons must stay current with the literature that affects their procedures to ensure that evidence-based medicine is being practiced.
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Affiliation(s)
- Brandon Klein
- Department of Orthopaedic Surgery, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell Health, Huntington, New York, U.S.A..
| | - Lucas E Bartlett
- Rowan-Virtua School of Osteopathic Medicine, Stratford, New Jersey, U.S.A
| | | | - Tracy M Tauro
- Rowan-Virtua School of Osteopathic Medicine, Stratford, New Jersey, U.S.A
| | - Francis Landman
- Mount Sinai South Nassau, Department of Internal Medicine, Oceanside, New York, U.S.A
| | - Randy M Cohn
- Department of Orthopaedic Surgery, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell Health, Huntington, New York, U.S.A
| | - Nicholas A Sgaglione
- Department of Orthopaedic Surgery, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell Health, Huntington, New York, U.S.A
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Itoh M, Itou J, Okazaki K, Iwasaki K. Estimation Failure Risk by 0.5-mm Differences in Autologous Hamstring Graft Diameter in Anterior Cruciate Ligament Reconstruction: A Meta-analysis. Am J Sports Med 2024; 52:535-543. [PMID: 36876736 DOI: 10.1177/03635465221150654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
Abstract
BACKGROUND Because grafts are made in 0.5-mm increments clinically for anterior cruciate ligament (ACL) reconstruction, it is important to clarify how the failure rate decreases as the diameter increases. Moreover, it is important to know whether even a slight increase in the graft diameter decreases the risk of failure. HYPOTHESIS The risk of failure decreases significantly with each 0.5-mm increase in hamstring graft diameter. STUDY DESIGN Meta-analysis; Level of evidence, 4. METHODS The systematic review and meta-analysis have estimated the diameter-specific failure risk for each 0.5-mm increase in ACL reconstruction using autologous hamstring grafts. We searched for studies describing the relationship between graft diameter and failure rate published before December 1, 2021, in leading databases, such as PubMed, EMBASE, Cochrane Library, and Web of Science, according to the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines. We included studies using single-bundle autologous hamstring grafts to investigate the relationship between failure rate and graft diameter of 0.5-mm intervals with >1-year follow-up. Then, we calculated the failure risk caused by 0.5-mm differences in autologous hamstring graft diameter. Assuming Poisson distribution for the statistical model, we employed an extended linear mixed-effects model in the meta-analyses. RESULTS Five studies containing 19,333 cases were eligible. The meta-analysis revealed that the estimated value of the coefficient of diameter in the Poisson model was -0.2357 with a 95% CI of -0.2743 to -0.1971 (P < .0001). With every 1.0-mm increase in diameter, the failure rate decreased by 0.79 (0.76-0.82) times. In contrast, the failure rate increased by 1.27 (1.22-1.32) times for each 1.0-mm decrease in diameter. The failure rate significantly decreased with each 0.5-mm increase in graft diameter in the range of <7.0 to >9.0 mm from 3.63% to 1.79%. CONCLUSION The risk of failure decreased correspondingly with each 0.5-mm increase in graft diameter in the range of <7.0 to >9.0 mm. Failure is multifactorial; however, increasing the graft diameter as much as possible to match each patient's anatomic space without overstuffing is an effective precaution that surgeons can take to reduce failures.
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Affiliation(s)
- Masafumi Itoh
- Department of Orthopedic Surgery, Tokyo Women's Medical University, Shinjuku, Tokyo, Japan
- Institute for Medical Regulatory Science, Comprehensive Research Organization, Waseda University, Shinjuku, Tokyo, Japan
- Cooperative Major in Advanced Biomedical Sciences, Joint Graduate School of Tokyo Women's Medical University and Waseda University, Shinjuku, Tokyo, Japan
| | - Junya Itou
- Department of Orthopedic Surgery, Tokyo Women's Medical University, Shinjuku, Tokyo, Japan
- Cooperative Major in Advanced Biomedical Sciences, Joint Graduate School of Tokyo Women's Medical University and Waseda University, Shinjuku, Tokyo, Japan
| | - Ken Okazaki
- Department of Orthopedic Surgery, Tokyo Women's Medical University, Shinjuku, Tokyo, Japan
| | - Kiyotaka Iwasaki
- Institute for Medical Regulatory Science, Comprehensive Research Organization, Waseda University, Shinjuku, Tokyo, Japan
- Cooperative Major in Advanced Biomedical Sciences, Joint Graduate School of Tokyo Women's Medical University and Waseda University, Shinjuku, Tokyo, Japan
- Department of Modern Mechanical Engineering, Waseda University, Shinjuku, Tokyo, Japan
- Department of Integrative Bioscience and Biomedical Engineering, Graduate School of Advanced Science and Engineering, Waseda University, Shinjuku, Tokyo, Japan
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Wallace GJ, Thompson JD, Diekfuss JA, Champagne AA, Myer GD, Kaiser J, Lamplot JD. Suture Augmentation of a Four-Strand Semitendinosus Graft Improves Time-Zero Biomechanical Properties. Arthroscopy 2024; 40:124-132. [PMID: 37355190 DOI: 10.1016/j.arthro.2023.06.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 04/05/2023] [Accepted: 06/12/2023] [Indexed: 06/26/2023]
Abstract
PURPOSE To compare the time-zero biomechanical properties of hamstring graft preparations with or without suture augmentation for anterior cruciate ligament reconstruction (ACLR) in a full-construct cadaveric model. METHODS Hamstring grafts were harvested from 24 fresh frozen human cadavers and prepared in 1 of 3 ways: quadrupled SemiTendinosus (SemiT), and quadrupled SemiT with suture augmentation (SemiT+2.0-mm tape or SemiT+1.3-mm tape; n = 8 per group). Adjustable loop suspensory implants and cortical buttons were used for fixation on a porcine tibia and acrylic block. Testing included force-controlled cyclic loading at 250 N and 400 N followed by load to failure. RESULTS The 2 suture augmentation groups had less total elongation and increased stiffness compared to the nonsuture-augmented group (P = .025). The SemiT+2.0-mm tape group had 36% less total elongation and 34% increased stiffness compared to SemiT+1.3mm tape (P < .001). CONCLUSIONS Suture augmentation improves construct biomechanics at time zero following hamstring tendon ACLR. Augmentation with 2.0-mm tape suture improves construct biomechanics compared to 1.3-mm tape suture. CLINICAL RELEVANCE Independent suture augmentation of a quadrupled SemiT graft improves ACLR construct biomechanics. Outcomes were improved with augmentation using 2.0-mm tape suture compared to 1.3-mm tape suture.
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Affiliation(s)
- Garrett J Wallace
- Department of Orthopaedics, Emory University School of Medicine, Atlanta, Georgia, USA
| | - J Daniel Thompson
- Department of Orthopaedics, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Jed A Diekfuss
- Department of Orthopaedics, Emory University School of Medicine, Atlanta, Georgia, USA; Emory Sports Performance and Research Center (SPARC), Flowery Branch, Georgia, U.S.A
| | - Allen A Champagne
- Department of Orthopedic Surgery, Queen's University, Kingston, Ontario, Canada; School of Medicine, Queen's University, Kingston, Ontario, Canada
| | - Gregory D Myer
- Department of Orthopaedics, Emory University School of Medicine, Atlanta, Georgia, USA; Emory Sports Performance and Research Center (SPARC), Flowery Branch, Georgia, U.S.A.; Emory Sports Medicine Center, Atlanta, Georgia, U.S.A.; The Micheli Center for Sports Injury Prevention, Waltham, Massachusetts, U.S.A
| | - Jarred Kaiser
- Department of Orthopaedics, Emory University School of Medicine, Atlanta, Georgia, USA
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Richards JA, Nyland J, Caborn DNM. Editorial Commentary: Proper Anterior Cruciate Ligament Graft Choice Mitigates Against the Need for Anterolateral Ligament Reconstruction. Arthroscopy 2023; 39:2525-2528. [PMID: 37981391 DOI: 10.1016/j.arthro.2023.06.010] [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: 06/02/2023] [Accepted: 06/04/2023] [Indexed: 11/21/2023]
Abstract
It is not coincidence that fervor surrounding anterolateral ligament (ALL) reconstruction increased as double-bundle anterior cruciate ligament reconstruction (ACLR) enthusiasm cooled. But perhaps we shifted our focus too soon, or perhaps we shifted our focus too much. But we must remember that the ACL is primary. Increases in ACL graft diameter by 1 or 2 mm can significantly increase graft strength and decrease revision rate. Biomechanical and clinical evidence suggests that quadriceps tendon ACLR and patellar tendon ACLR demonstrates less pivot shift phenomena than hamstring ACLR. In addition, As biologically active suture tapes become more mainstream, augmented allografts are an increasingly attractive option. Proper ACL graft choice mitigates against the need for ALL reconstruction. Risk factors for anterolateral rotatory instability may include low body mass index and lateral meniscal pathology, in addition to the well-known risks such as age, gender, activity level, and revision cases. Perhaps lateral extra-articular tenodesis should be reserved for high-risk cases.
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Affiliation(s)
- Jarod A Richards
- University of Louisville (J.A.R., D.N.M.Z.) and University of Missouri (J.A.R.)
| | - John Nyland
- University of Louisville (J.A.R., D.N.M.Z.) and University of Missouri (J.A.R.)
| | - David N M Caborn
- University of Louisville (J.A.R., D.N.M.Z.) and University of Missouri (J.A.R.)
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Bourgeault-Gagnon Y, Leang AK, Bédard S, Lebel K, Balg F, Vézina F. Estimated diameter increase from a 4S to a 6S hamstring graft configuration - A cadaveric study. SICOT J 2023; 9:34. [PMID: 38032265 PMCID: PMC10688256 DOI: 10.1051/sicotj/2023033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 11/05/2023] [Indexed: 12/01/2023] Open
Abstract
PURPOSE Graft diameter in anterior cruciate ligament reconstructions has been shown to influence the risk of failure. It is therefore important to be able to adjust the graft configuration to modify the diameter. To measure the impact of a 6-strand (6S) hamstring autograft configuration on graft diameter compared to the standard 4-strand (4S) configuration. METHODS Cadaveric study on 33 knees, using the usual hamstring graft harvesting technique. Semitendinosus and gracilis tendons were harvested and their length, width, and diameter were measured in 4S and 6S configurations separately by three evaluators. RESULTS 6S configuration leads to a median increase of 1.5 (range: 0.0-2.0) mm in diameter compared to 4S (p < 0.001). A graft diameter of more than 8 mm is attained in less than a third of 4S grafts within this population in comparison to 84% when the 6S configuration is used. DISCUSSION The 6S hamstring graft configuration increases the graft diameter by a median of 1.5 millimeters compared to the traditional 4S configuration. It can reliably be used to obtain an 8.5 mm graft diameter or more in cases where the semitendinosus measures at least 270.5 mm and the 4S configuration has a diameter of 7.5 mm or 8 mm. This information helps to better delineate the impact of a 6S configuration in a pre-operative or intra-operative setting to optimize the decisional process and surgical flow and to easily adapt the graft diameter. LEVEL OF EVIDENCE V (cadaveric study).
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Affiliation(s)
| | - Alexandre Keith Leang
- Sherbrooke University 3001 12th Avenue North Sherbooke QC J1H 5H4 Canada
- Centre Hospitalier Hôtel-Dieu-de-Sorel 400 Av. de l’Hôtel-Dieu Sorel-Tracy QC J3P 1N4 Canada
| | - Sonia Bédard
- Center for Research at the CHUS (CIUSSS de l’Estrie CHUS) 3001 12th Avenue North Sherbooke QC J1H 5H4 Canada
| | - Karina Lebel
- Research center on aging (CIUSSS de l’Estrie CHUS), 1036, rue Belvédère Sud Sherbooke QC J1H 4C4 Canada
- Department of Electrical Engineering and Computer Engineering, Université de Sherbrooke 2500, boulevard de l’Université, bureau C1-3050 Sherbrooke QC J1K 2R1 Canada
| | - Frédéric Balg
- Sherbrooke University 3001 12th Avenue North Sherbooke QC J1H 5H4 Canada
- Center for Research at the CHUS (CIUSSS de l’Estrie CHUS) 3001 12th Avenue North Sherbooke QC J1H 5H4 Canada
| | - François Vézina
- Sherbrooke University 3001 12th Avenue North Sherbooke QC J1H 5H4 Canada
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Amirouche F, Solitro GF, Gligor BZ, Hutchinson M, Koh J. Investigating the effect of autograft diameter for quadriceps and patellar tendons use in anterior cruciate ligament reconstruction: a biomechanical analysis using a simulated Lachman test. Front Surg 2023; 10:1122379. [PMID: 37886636 PMCID: PMC10598649 DOI: 10.3389/fsurg.2023.1122379] [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: 12/12/2022] [Accepted: 09/12/2023] [Indexed: 10/28/2023] Open
Abstract
Introduction Current clinical practice suggests using patellar and quadriceps tendon autografts with a 10 mm diameter for ACL reconstruction. This can be problematic for patients with smaller body frames. Our study objective was to determine the minimum diameter required for these grafts. We hypothesize that given the strength and stiffness of these respective tissues, they can withstand a significant decrease in diameter before demonstrating mechanical strength unviable for recreating the knee's stability. Methods We created a finite element model of the human knee with boundary conditions characteristic of the Lachman test, a passive accessory movement test of the knee performed to identify the integrity of the anterior cruciate ligament (ACL). The Mechanical properties of the model's grafts were directly obtained from cadaveric testing and the literature. Our model estimated the forces required to displace the tibia from the femur with varying graft diameters. Results The 7 mm diameter patellar and quadriceps tendon grafts could withstand 55-60 N of force before induced tibial displacement. However, grafts of 5.34- and 3.76-mm diameters could only withstand upwards of 47 N and 40 N, respectively. Additionally, at a graft diameter of 3.76 mm, the patellar tendon experienced 234% greater stiffness than the quadriceps tendon, with similar excesses of stiffness demonstrated for the 5.34- and 7-mm diameter grafts. Conclusions The patellar tendon provided a stronger graft for knee reconstruction at all diameter sizes. Additionally, it experienced higher maximum stress, meaning it dissociates force better across the graft than the quadriceps tendon. Significantly lower amounts of force were required to displace the tibia for the patellar and quadriceps tendon grafts at 3.76- and 5.34-mm graft diameters. Based on this point, we conclude that grafts below the 7 mm diameter have a higher chance of failure regardless of graft selection.
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Affiliation(s)
- Farid Amirouche
- Department of Orthopaedics, University of Illinois at Chicago College of Medicine, Chicago, IL, United States
- Department of Orthopaedics, Northshore University Health System, Evanston, IL, United States
| | - Giovanni Francesco Solitro
- Department of Orthopaedics, Louisiana State University College of Medicine, Shreveport, LA, United States
| | - Brandon Zachary Gligor
- Department of Orthopaedics, University of Illinois at Chicago College of Medicine, Chicago, IL, United States
| | - Mark Hutchinson
- Department of Orthopaedics, University of Illinois at Chicago College of Medicine, Chicago, IL, United States
| | - Jason Koh
- Department of Orthopaedics, Northshore University Health System, Evanston, IL, United States
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11
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Moran TE, Ramamurti P, Wells DK, Thompson X, Hart JM, Diduch DR, Brockmeier SF, Miller MD, Gwathmey WF, Werner BC. No Deficits in Functional Outcomes of the Contralateral Limb Are Seen When the Hamstring Is Harvested for Augmentation of Small Diameter Ipsilateral Hamstring Autograft. Arthrosc Sports Med Rehabil 2023; 5:100798. [PMID: 37771676 PMCID: PMC10523181 DOI: 10.1016/j.asmr.2023.100798] [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: 02/04/2023] [Accepted: 08/18/2023] [Indexed: 09/30/2023] Open
Abstract
Purpose To evaluate clinical outcomes of the contralateral, nonoperative limb in patients undergoing contralateral hamstring (HS) autograft harvest compared with patients undergoing ipsilateral HS autograft harvest alone. Methods This study included 96 patients who underwent isolated anterior cruciate ligament reconstruction (ACLR) using 4-stranded HS autograft (n = 85) or 4-stranded HS autograft augmented with contralateral HS (n = 13) due to inclusion of ipsilateral graft diameter <8 mm. Isokinetic flexion and extension strength and dynamic performance of the ipsilateral and contralateral limbs and limb symmetry index (LSI) were evaluated at 6 months' postoperatively. Rates of contralateral native ACL tear at minimum 2 years also were compared. For all comparisons, P < .05 was considered statistically significant. Results Normalized isokinetic knee flexion and extension strength of the contralateral limb did not differ between cohorts (P = .34; P = .21, respectively). LSI for knee extension peak torque and knee flexion peak torque did not differ between cohorts (P = .44; P = .67, respectively). No difference in LSI was seen for any dynamic performance testing (single leg hop, P = .97; triple leg hop, P = .14; 6-m timed hop, P = .99). No difference was observed in International Knee Documentation Committee (P = .99) or Knee Injury and Osteoarthritis Outcome Score subscale measures (P = .39-.86). No difference in rates of contralateral knee native ACL tears were seen between cohorts (HS autograft + contralateral HS augmentation, n = 2, 15.4%; HS autograft, n = 7, 8.4%; P = .26). Conclusions In this study, at the time of return to sport, we found no differences in contralateral limb functional performance or limb symmetry measurements between patients undergoing contralateral HS autograft harvest for augmentation of smaller (<8 mm) diameter HS autografts harvested from the injured extremity. Level of Evidence Level III, retrospective cohort study.
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Affiliation(s)
- Thomas E. Moran
- Department of Orthopaedic Surgery, University of Virginia Health System, Charlottesville, Virginia, U.S.A
| | - Pradip Ramamurti
- Department of Orthopaedic Surgery, University of Virginia Health System, Charlottesville, Virginia, U.S.A
| | - Douglas K. Wells
- Department of Orthopaedic Surgery, University of Virginia Health System, Charlottesville, Virginia, U.S.A
| | - Xavier Thompson
- Department of Orthopaedic Surgery, University of Virginia Health System, Charlottesville, Virginia, U.S.A
| | - Joseph M. Hart
- Department of Orthopaedic Surgery, University of Virginia Health System, Charlottesville, Virginia, U.S.A
| | - David R. Diduch
- Department of Orthopaedic Surgery, University of Virginia Health System, Charlottesville, Virginia, U.S.A
| | - Stephen F. Brockmeier
- Department of Orthopaedic Surgery, University of Virginia Health System, Charlottesville, Virginia, U.S.A
| | - Mark D. Miller
- Department of Orthopaedic Surgery, University of Virginia Health System, Charlottesville, Virginia, U.S.A
| | - Winston F. Gwathmey
- Department of Orthopaedic Surgery, University of Virginia Health System, Charlottesville, Virginia, U.S.A
| | - Brian C. Werner
- Department of Orthopaedic Surgery, University of Virginia Health System, Charlottesville, Virginia, U.S.A
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Ateş O, Bozkurt I, Uluyardimci E, Öçgüder DA, Uğurlu M. Relationship between graft failure following anterior cruciate ligament reconstruction and hamstring autograft diameter. Acta Orthop Belg 2023; 89:429-433. [PMID: 37935225 DOI: 10.52628/89.3.11518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2023]
Abstract
With the increase in the number of individuals participating in sports, anterior cruciate ligament (ACL) injuries are also increasing gradually and the number of patients requiring surgical treatment is increasing in parallel. The primary aim of this study was to investigate the relationship between the need for revision surgery and graft diameter following primary ACL reconstruction (ACLR) using hamstring autografts. The secondary aim of the study was to clarify relationships between anthropometric characteristics and graft diameter. Patients who underwent ACLR with hamstring autografts were included in this retrospective study. The age, body mass index, height, and weight of all patients were recorded preoperatively and the diameters of the grafts were recorded during surgery. The relationship between revision rate and graft diameter and the relationships between anthropometric measurements and graft diameter were investigated for these patients at least one year after surgery. This study included 58 people with graft diameters of ≤7 mm and 261 people with graft diameters of >7 mm. A statistically significant difference was found between the graft diameters of the group that needed revision surgery and the group that did not (p<0.001). A positive relationship was also found between the patient's height and graft diameter (r=0.168). In this study, it was found that the risk of ACL revision surgery increased by 5.5 times among patients with graft diameters of ≤7 mm. The positive relationship between the patient's height and graft diameter can make a significant difference in terms of the need for revision surgery.
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13
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Zhao D, Pan JK, Lin FZ, Luo MH, Liang GH, Zeng LF, Huang HT, Han YH, Xu NJ, Yang WY, Liu J. Risk Factors for Revision or Rerupture After Anterior Cruciate Ligament Reconstruction: A Systematic Review and Meta-analysis. Am J Sports Med 2023; 51:3053-3075. [PMID: 36189967 DOI: 10.1177/03635465221119787] [Citation(s) in RCA: 26] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND The rerupture or need for revision after anterior cruciate ligament reconstruction (ACLR) is a serious complication. Preventive strategies that target the early identification of risk factors are important to reduce the incidence of additional surgery. PURPOSE To perform a systematic review and meta-analysis to investigate risk factors for revision or rerupture after ACLR. STUDY DESIGN Systematic review and meta-analysis; Level of evidence, 4. METHODS Literature searches were performed in PubMed, Embase, and Web of Science from database inception to November 2021 and updated in January 2022. Quantitative, original studies reporting potential adjusted risk factors were included. Odds ratios (ORs) were calculated for potential risk factors. RESULTS A total of 71 studies across 13 countries with a total sample size of 629,120 met the inclusion criteria. Fifteen factors were associated with an increase in the risk of revision or rerupture after ACLR: male sex (OR, 1.27; 95% CI, 1.14-1.41), younger age (OR, 1.07; 95% CI, 1.05-1.08), lower body mass index (BMI) (OR, 1.03; 95% CI, 1.00-1.06), family history (OR, 2.47; 95% CI, 1.50-4.08), White race (OR, 1.32; 95% CI, 1.08-1.60), higher posterolateral tibial slope (OR, 1.15; 95% CI, 1.05-1.26), preoperative high-grade anterior knee laxity (OR, 2.30; 95% CI, 1.46-3.64), higher baseline Marx activity level (OR, 1.07; 95% CI, 1.02-1.13), return to a high activity level/sport (OR, 2.03; 95% CI, 1.15-3.57), an ACLR within less than a year after injury (OR, 2.05; 95% CI, 1.81-2.32), a concomitant medial collateral ligament (MCL) injury (OR, 1.62; 95% CI, 1.31-2.00), an anteromedial portal or transportal technique (OR, 1.36; 95% CI, 1.22-1.51), hamstring tendon (HT) autografts (vs bone-patellar tendon-bone [BPTB] autografts) (OR, 1.60; 95% CI, 1.40-1.82), allografts (OR, 2.63; 95% CI, 1.65-4.19), and smaller graft diameter (OR, 1.21; 95% CI, 1.05-1.38). The other factors failed to show an association with an increased risk of revision or rerupture after ACLR. CONCLUSION Male sex, younger age, lower BMI, family history, White race, higher posterolateral tibial slope, preoperative high-grade anterior knee laxity, higher baseline Marx activity level, return to a high activity level/sport, an ACLR within less than a year from injury, a concomitant MCL injury, an anteromedial portal or transportal technique, HT autografts (vs BPTB autografts), allografts, and smaller graft diameter may increase the risk of revision or rerupture after ACLR. Raising awareness and implementing effective preventions/interventions for risk factors are priorities for clinical practitioners to reduce the incidence of revision or rerupture after ACLR.
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Affiliation(s)
- Di Zhao
- The Second Clinical School of Guangzhou University of Chinese Medicine, Guangzhou, China
- Bone and Joint Research Team of Degeneration and Injury, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, China
| | - Jian-Ke Pan
- Bone and Joint Research Team of Degeneration and Injury, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, China
- Department of Sports Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Fang-Zheng Lin
- The Second Clinical School of Guangzhou University of Chinese Medicine, Guangzhou, China
- Department of Sports Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Ming-Hui Luo
- Bone and Joint Research Team of Degeneration and Injury, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, China
- Department of Sports Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Gui-Hong Liang
- Bone and Joint Research Team of Degeneration and Injury, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, China
- Department of Sports Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Ling-Feng Zeng
- Bone and Joint Research Team of Degeneration and Injury, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, China
- Department of Sports Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - He-Tao Huang
- Bone and Joint Research Team of Degeneration and Injury, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, China
- Department of Sports Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yan-Hong Han
- Bone and Joint Research Team of Degeneration and Injury, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, China
- Department of Sports Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Nan-Jun Xu
- The Second Clinical School of Guangzhou University of Chinese Medicine, Guangzhou, China
- Department of Sports Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Wei-Yi Yang
- Bone and Joint Research Team of Degeneration and Injury, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, China
- Department of Sports Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jun Liu
- Department of Sports Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- Guangdong Second Traditional Chinese Medicine Hospital (Guangdong Province Engineering Technology Research Institute of Traditional Chinese Medicine), Guangzhou, China
- The Fifth Clinical Medical College of Guangzhou University of Chinese Medicine, Guangzhou, China
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Mert A, Cinaroglu S, Keleş H, Aydin M, Çiçek F. Evaluation of Autografts Used in Anterior Cruciate Ligament Reconstruction in Terms of Tensile Strength. Cureus 2023; 15:e39927. [PMID: 37409216 PMCID: PMC10318378 DOI: 10.7759/cureus.39927] [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] [Accepted: 06/03/2023] [Indexed: 07/07/2023] Open
Abstract
Introduction Anterior cruciate ligament (ACL) injuries increase the likelihood of chronic knee problems in later years, including early onset osteoarthritis. Therefore, ACL treatment is important in preventing knee problems from developing. The treatment of choice for ACL tears is surgery (ACL reconstruction), and the most popular tendons for ACL reconstruction are the patellar tendon, hamstring tendon (semitendinosus and gracilis tendons), and bone-patellar tendon-bone. The present study compares the tensile strength of autografts used in ACL reconstruction to identify the optimum autograft for ACL in terms of mechanical properties. Methods Cadavers were dissected, and the Achilles tendons, quadriceps tendons, hamstring tendons (semitendinosus and gracilis tendons), patellar tendon grafts, and ACLs were harvested. Tensile tests of each tendon graft were performed using a Shimadzu Autograph AG-IS 100 kN tester (Shimadzu, Kyoto, Japan). Results The mean difference in tensile strength between ACL and other grafts was lowest for the quadriceps in both males and females (p ˂ 0.001), meaning that ACL and quadriceps grafts are more compatible than other tendon grafts in terms of tensile strength. Conclusion The present study found the lowest mean difference in tensile strength to be between the ACL and the quadriceps tendon, suggesting that the use of the quadriceps tendon in ACL reconstruction will yield more positive outcomes.
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Affiliation(s)
- Ahmet Mert
- Department of Orthopedics and Traumatology, Niğde Ömer Halisdemir University Faculty of Medicine, Niğde, TUR
| | - Selim Cinaroglu
- Department of Anatomy, Niğde Ömer Halisdemir University Faculty of Medicine, Niğde, TUR
| | - Hacı Keleş
- Department of Anatomy, Niğde Ömer Halisdemir University Faculty of Medicine, Niğde, TUR
| | - Murat Aydin
- Department of Orthopedics and Traumatology, Niğde Ömer Halisdemir University Faculty of Medicine, Niğde, TUR
| | - Fatih Çiçek
- Department of Anatomy, Niğde Ömer Halisdemir University Faculty of Medicine, Niğde, TUR
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15
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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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16
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El-Azab H, Moursy M, Mohamed MA, Elsayed M. A comparison of the outcomes of anterior curciate ligament reconstruction with large-size graft versus reconstruction with average-size graft combined with extraarticular tenodesis. Injury 2023; 54:976-982. [PMID: 36720663 DOI: 10.1016/j.injury.2023.01.033] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 01/01/2023] [Accepted: 01/16/2023] [Indexed: 01/22/2023]
Abstract
INTRODUCTION Many patients who have had anterior cruciate ligament (ACL) reconstruction (R) complain of instability, inability to return to previous levels of sports activity, and possible ACL graft failure. Graft size was discovered to be an important factor in lowering ACL failure rates. Also, extraarticular tenodesis decreases recurrent instability, A comparative study was done to compare the effect of graft size and lateral external tenodesis on the recurrence of instability after ACL-R. PATIENTS AND METHODS A Prospective Blinded Randomized Controlled study included 100 consecutive patients who underwent ACL-R with hamstring tendon grafts in our Hospital. The patients were allocated into two groups (Group A and B) with randomization; group A received ACL-R with a large-size ACL-graft diameter of 6 strands, and group B received ACL-R of 4 strands combined with lateral extraarticular tenodesis (LET) (Modified Lemaire). Each group had fifty patients. The follow-up time was two years. They were examined for graft failure, anterolateral rotatory instability with the pivot shift test, and clinical outcomes, which were evaluated with the International Knee Documentation Committee score (IKDC) both subjective and objective. RESULTS In this study; group A, graft failure occurred in three (6.3%) patients, a positive pivot shift test grade I was detected in eight (17.8%) patients, grade II in three (6.7%) patients, and grade III in one (2.2%) patient. The subjective IKDC score was 87.9 (± 7.19) points. The objective IKDC score was normal or nearly normal in 43 (93.4%) patients. In group B, one (2.1%) patient had graft failure, five (10.9%) had a positive pivot shift test grade I, one (2.1%) had a grade II, and no patient had a grade III. The subjective IKDC score was 91.9 (± 8.9) points. The objective IKDC score was normal or nearly normal in 44 (95.6%) patients. As regard the subjective IKDC score, there was a non-significant difference between both groups (p value = 0.465). CONCLUSION Both groups showed a low ACL-graft failure rate, low anterolateral rotatory instability, and a good clinical outcome. Although there was no significant difference in subjective IKDC score between both groups, the failure rate and anterolateral rotatory instability were significantly lower in the ACL-R (4 strands) with LET combination group than in the group with the large-diameter (6 strands) graft. LEVEL OF EVIDENCE Level 1; Randomized Comparative Study.
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Affiliation(s)
- Hossam El-Azab
- Department of Orthopaedics and Traumatology, Sohag Faculty of Medicine, Sohag University, Egypt.
| | - Mohamed Moursy
- Department of Orthopedics and Traumatology, Paracelsus Medical University, Salzburg, Austria
| | - Mohamed A Mohamed
- Department of Orthopaedics and Traumatology, Sohag Faculty of Medicine, Sohag University, Egypt
| | - Moustafa Elsayed
- Department of Orthopaedics and Traumatology, Sohag Faculty of Medicine, Sohag University, Egypt
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Ignozzi AJ, Moran TE, Werner BC. No Difference Could Be Detected in Clinical Outcomes of 5-Strand and Quadruple Hamstring Autografts of Similar Diameter in Anterior Cruciate Ligament Reconstruction: A Retrospective Cohort Study. HSS J 2023; 19:62-68. [PMID: 36776516 PMCID: PMC9837399 DOI: 10.1177/15563316221109549] [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: 03/11/2022] [Accepted: 05/04/2022] [Indexed: 02/14/2023]
Abstract
Background: There are few studies examining the clinical outcomes of 5-strand autografts in anterior cruciate ligament reconstruction (ACL-R). Purpose: We aimed to compare the clinical outcomes of ACL-R using 5-strand (5HS) and 4-strand (4HS) hamstring autografts of similar graft diameter to study the potential effects of autograft strand number on clinical outcomes. Methods: Patients who underwent ACL-R from 2013 to 2018 at a single academic institution and received a 4HS or 5HS autograft were included. Exclusion criteria were less than 2-year follow-up and any additional ligamentous reconstruction. Revision ACL-R and cyclops lesions were assessed at a minimum 2 years of postoperative follow-up. Objective measures of ability to return to sport were assessed at 6 months. Results: The mean graft diameters for 4HS (n = 51) and 5HS (n = 23) autografts were 8.3 ± 0.7 mm and 8.4 ± 0.7 mm, respectively. The mean follow-up for the 4HS and 5HS cohorts was 3.0 ± 1.5 years and 3.3 ± 1.3 years, respectively. The 4HS and 5HS cohorts had revision ACL-R rates of 15.7% (8/51) and 8.7% (2/23), respectively. Cyclops lesions occurred in 5.9% of 4HS patients and 13.0% of 5HS patients. We found no statistically significant differences between groups on objective measures of ability to return to sport. Conclusion: This retrospective cohort study detected no difference in revision ACL-R rates, frequency of cyclops lesions, or objective measures of ability to return to sport in patients who received 4HS or 5HS autografts of similar diameter for ACL-R. Further comparative study with larger sample sizes is warranted.
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Affiliation(s)
- Anthony J. Ignozzi
- Department of Orthopaedic Surgery, University of Virginia Medical Center, Charlottesville, VA, USA
| | - Thomas E. Moran
- Department of Orthopaedic Surgery, University of Virginia Medical Center, Charlottesville, VA, USA
| | - Brian C. Werner
- Department of Orthopaedic Surgery, University of Virginia Medical Center, Charlottesville, VA, USA
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18
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Onishi S, Iseki T, Kanto R, Nakayama H, Oka S, Matsumoto A, Tachibana T, Yoshiya S, Yamaguchi M. Effect of Cross-sectional Area of the Hamstring Tendon Autograft on Failure Rate or Clinical Outcomes After Double-Bundle ACL Reconstruction: Tendon Autograft. Orthop J Sports Med 2023; 11:23259671221142857. [PMID: 36660344 PMCID: PMC9843636 DOI: 10.1177/23259671221142857] [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: 07/31/2022] [Accepted: 09/13/2022] [Indexed: 01/15/2023] Open
Abstract
Background In previous studies examining the relationship between graft size and failure rate after anterior cruciate ligament reconstruction (ACLR), graft size was determined as diameter of the bone tunnel, and graft failure was defined as revision surgery. Consequently, the correlation between graft size and postoperative recurrent instability could not be assessed. Purpose (1) To intraoperatively measure the cross-sectional area (CSA) of the hamstring tendon (HT) autograft and compare the CSA of the autograft with the bone tunnel and (2) to assess the effect of the graft CSA on postoperative graft failure among patients who underwent double-bundle ACLR. Study Design Case-control study; Level of evidence, 3. Methods The study included 129 patients who underwent double-bundle ACLR using an HT autograft (mean ± SD age, 16.7 ± 1.7 years; all with a Tegner activity level ≥6). All patients had a minimum follow-up of 2 years. During surgery, the graft CSA was measured using an area micrometer, combining the anteromedial (AM) and posterolateral (PL) grafts. The total area of the bone tunnel was defined as the combined CSAs of the AM and PL tunnels as calculated by the diameter of the drill. The relationship between the CSAs of the combined HT graft and the bone tunnel was statistically compared, as was the relationship between graft CSAs and graft failure, defined as reinjury, recurrent instability manifested as quantitative laxity measurement, or revision ACLR. Results The CSAs of the midsubstance of the combined AM and PL graft significantly correlated with those of the bone tunnels (femoral side, R 2 = 0.334, P < .0001; tibial side, R 2 = 0.421, P < .0001). As for the relationship between the graft CSA and ACLR failure, there was no significant difference in the graft CSAs between the groups with and without graft failure in any of the failure criteria (P = .188). Conclusion The graft CSA was not a predictor of early failure after double-bundle ACLR using an HT autograft in this patient population.
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Affiliation(s)
- Shintaro Onishi
- Department of Orthopaedic Surgery, Nishinomiya Kaisei Hospital, Nishinomiya, Japan.,Shintaro Onishi, MD, PhD, Department of Orthopaedic Surgery, Nishinomiya Kaisei Hospital, 1-4 Ohama Cho, Nishinomiya, Hyogo, Japan 662-0957 ()
| | - Tomoya Iseki
- Department of Orthopaedic Surgery, Hyogo Medical University, Nishinomiya, Japan
| | - Ryo Kanto
- Department of Orthopaedic Surgery, Hyogo Medical University, Nishinomiya, Japan
| | - Hiroshi Nakayama
- Department of Orthopaedic Surgery, Hyogo Medical University, Nishinomiya, Japan
| | - Shinya Oka
- Department of Orthopaedic Surgery, Meiwa Hospital, Nishinomiya, Japan
| | - Akio Matsumoto
- Department of Orthopaedic Surgery, Meiwa Hospital, Nishinomiya, Japan
| | - Toshiya Tachibana
- Department of Orthopaedic Surgery, Hyogo Medical University, Nishinomiya, Japan
| | - Shinichi Yoshiya
- Department of Orthopaedic Surgery, Nishinomiya Kaisei Hospital, Nishinomiya, Japan
| | - Motoi Yamaguchi
- Department of Orthopaedic Surgery, Meiwa Hospital, Nishinomiya, Japan
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Cao Y, Yang C, Xu Y, Hong Y, Xu X. Anatomic reconstruction of the lateral ligaments using allograft tendon and suspensory fixation for chronic lateral ankle instability with poor remnant quality: results and complications. Arch Orthop Trauma Surg 2022; 143:3231-3237. [PMID: 36334141 DOI: 10.1007/s00402-022-04680-2] [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: 06/12/2022] [Accepted: 10/25/2022] [Indexed: 11/06/2022]
Abstract
PURPOSE Treatment of chronic lateral ankle instability (CLAI) with poor remnant quality is challenging. The aim of the present study was to evaluate clinical results and complications of anatomic reconstruction of the lateral ligaments using allograft tendon and suspensory fixation in the treatment of such patients. METHODS One hundred and eight patients with CLAI, who were treated surgically using anatomic reconstruction with allograft tendon and suspensory fixation between April 2016 and January 2018 at our hospital, were retrospectively analysed. None of the patients had sufficient ligament remnants for the modified Broström procedure during the intraoperative evaluation. Eighteen patients were excluded. Seventeen patients were lost to follow-up and 73 patients completed the study. The mean duration of instability symptoms was 39.1 months (range, 6-480 months). The mean follow-up time was 57.5 months (range, 48-69 months). Clinical results were evaluated using the Karlsson scoring scale, American Orthopaedic Foot and Ankle Society-Ankle and Hindfoot (AOFAS-AH) score, visual analogue scale (VAS), patients' subjective satisfaction, and incidence of complications. Mechanical stability was evaluated using the varus talar tilt angle (TTA) and anterior talar displacement (ATD). RESULTS The AOFAS-AH scores significantly improved from 67.7 ± 8.5 points to 89.8 ± 9.5 (p < 0.001). The Karlsson scoring scales evolved from 58.8 ± 16.5 to 88.4 ± 11.2 (p < 0.001). VAS scores significantly decreased from 2.9 ± 1.3 to 1.1 ± 1.0 (p < 0.001). On stress radiographs, TTA decreased from 15.1 ± 2.5 degrees to 5.8 ± 2.1 degrees (p < 0.001), whereas ATD reduced from 13.4 ± 2.9 mm to 5.7 ± 1.5 mm (p < 0.001). Patients' subjective satisfaction indicated 46 excellent, 20 good, 5 fair, and 2 bad results. Postoperatively, 15 cases (20.5%) did not achieve complete relief of discomfort or swelling, 9 cases (12.3%) experienced joint stiffness or decreased range of motion, and 6 cases (8.2%) had soft tissue irritation. Residual instability and reoperation are rare. Allograft rejection or wound infection was not observed. CONCLUSION For the CLAI patients with poor remnant quality, anatomic reconstruction of the lateral ligaments using allograft tendon and suspensory fixation is an effective procedure, while the top three complications in incidence were residual discomfort, joint stiffness, and soft tissue irritation. LEVELS OF EVIDENCE Level IV, retrospective case series.
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Affiliation(s)
- Yongxing Cao
- Department of Orthopedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No. 197, Ruijin Er Rd., 200025, Shanghai, China
| | - Chonglin Yang
- Department of Orthopedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No. 197, Ruijin Er Rd., 200025, Shanghai, China
| | - Yang Xu
- Department of Orthopedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No. 197, Ruijin Er Rd., 200025, Shanghai, China
| | - Yuan Hong
- Department of Orthopedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No. 197, Ruijin Er Rd., 200025, Shanghai, China
| | - Xiangyang Xu
- Department of Orthopedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No. 197, Ruijin Er Rd., 200025, Shanghai, China.
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20
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Lodhia P, Nazari G, Bryant D, Getgood A, McCormack R, Getgood AM, Bryant DM, Litchfield R, Willits K, Birmingham T, Hewison C, Firth AD, Wanlin S, Pinto R, Martindale A, O’Neill L, Jennings M, Daniluk M, McCormack RG, Boyer D, Zomar M, Moon K, Moon R, Fan B, Mohan B, Payne K, Heard M, Buchko GM, Hiemstra LA, Kerslake S, Tynedal J, MacDonald PB, Stranges G, Mcrae S, Gullett L, Brown H, Legary A, Longo A, Christian M, Ferguson C, Rezansoff A, Mohtadi N, Barber R, Chan D, Campbell C, Garven A, Pulsifer K, Mayer M, Peterson D, Simunovic N, Duong A, Robinson D, Levy D, Skelly M, Shanmugaraj A, Bardana D, Howells F, Tough M, Spalding T, Thompson P, Metcalfe A, Asplin L, Dube A, Clarkson L, Brown J, Bolsover A, Bradshaw C, Belgrove L, Milan F, Turner S, Verdugo S, Lowe J, Dunne D, McGowan K, Suddens CM, Verdonk PC, Declerq G, Vuylsteke K, Van Haver M. Performance of 5-Strand Hamstring Autograft Anterior Cruciate Ligament Reconstruction in the STABILITY Study: A Subgroup Analysis. Am J Sports Med 2022; 50:3502-3509. [PMID: 36260487 PMCID: PMC9630854 DOI: 10.1177/03635465221128581] [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] [Indexed: 01/31/2023]
Abstract
BACKGROUND Anterior cruciate ligament (ACL) reconstructions (ACLRs) with graft diameters <8mm have been shown to have higher revision rates. The 5-strand (5S) hamstring autograft configuration is a proposed option to increase graft diameter. PURPOSE To investigate the differences in clinical outcomes between 4-strand (4S) and 5S hamstring autografts for ACLR in patients who underwent ACLR alone or concomitantly with a lateral extra-articular tenodesis (LET) procedure. STUDY DESIGN Cohort study; Level of evidence, 2. METHODS Data from the STABILITY study were analyzed to compare a subgroup of patients undergoing ACLR alone or with a concomitant LET procedure (ACLR + LET) with a minimum graft diameter of 8mm that had either a 4S or 5S hamstring autograft configuration. The primary outcome was clinical failure, a composite of rotatory laxity and/or graft failure. The secondary outcome measures consisted of 2 patient-reported outcome scores (PROs)-namely, the ACL Quality of Life Questionnaire (ACL-QoL) and the International Knee Documentation Committee (IKDC) score at 24 months postoperatively. RESULTS Of the 618 patients randomized in the STABILITY study, 399 (228 male; 57%) fit the inclusion criteria for this study. Of these, 191 and 208 patients underwent 4S and 5S configurations of hamstring ACLR, respectively, with a minimum graft diameter of 8mm. Both groups had similar characteristics other than differences in anthropometric factors-namely, sex, height, and weight, and Beighton scores. The primary outcomes revealed no difference between the 2 groups in rotatory stability (odds ratio [OR], 1.19; 95% CI, 0.77-1.84; P = .42) or graft failure (OR, 1.13; 95% CI, 0.51-2.50; P = .76). There was no significant difference between the groups in Lachman (P = .46) and pivot-shift (P = .53) test results at 24 months postoperatively. The secondary outcomes revealed no differences in the ACL-QoL (P = .67) and IKDC (P = .83) scores between the 2 subgroups. CONCLUSION At the 24-month follow-up, there were no significant differences in clinical failure rates and PROs in an analysis of patients with 4S and 5S hamstring autografts of ≥8mm diameter for ACLR or ACLR + LET. The 5S hamstring graft configuration is a viable option to produce larger-diameter ACL grafts.
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Affiliation(s)
- Parth Lodhia
- Parth Lodhia, MD, University of British Columbia, 403-233
Nelson’s Crescent, New Westminster, V3L 0E4, Canada (
)
| | - Goris Nazari
- Canadian Institutes of Health Research, Ottawa,
Ontario, Canada
| | - Dianne Bryant
- The University of Western Ontario, London,
Ontario, Canada
| | - Alan Getgood
- Western Ontario University, London, Ontario,
Canada
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Michal Daniluk
- London Health Sciences Centre, Western
University, Fowler Kennedy Sport Medicine Clinic, London, Canada
| | | | | | | | | | | | | | | | - Kyrsten Payne
- Fraser Orthopaedic Institute, New Westminster,
Canada
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Michelle Mayer
- Sport Medicine Centre, University of Calgary,
Calgary, Canada
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Mieke Van Haver
- Antwerp Orthopaedic Center, Ghent,
Belgium,Investigation performed at University of
British Columbia, Vancouver, BC, Canada
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21
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Rees-Goddard R, Borsky K, Tessmann T, Wolf T, Boeker-Blum T, Borsky M. Influence of Anaesthesia on Harvesting the Semitendinosus Tendon for Anterior Cruciate Ligament Replacement. Cureus 2022; 14:e30791. [DOI: 10.7759/cureus.30791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/27/2022] [Indexed: 11/07/2022] Open
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22
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Bourgeault-Gagnon Y, Leang AK, Bédard S, Lebel K, Balg F, Vézina F. A Partial-Thickness Quadriceps Autograft Reliably Augments the Size of the Hamstring Graft During Anterior Cruciate Ligament Reconstruction. Arthrosc Sports Med Rehabil 2022; 4:e2005-e2009. [PMID: 36579052 PMCID: PMC9791862 DOI: 10.1016/j.asmr.2022.08.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 08/24/2022] [Indexed: 11/06/2022] Open
Abstract
Purpose To measure the increase in diameter resulting from the augmentation of a hamstring autograft with a partial width rectus femoris tendon band in anterior cruciate ligament reconstruction. Methods Thirty-three cadaveric knees were dissected to harvest semitendinosus and gracilis tendons (4S) along with a 6-mm wide tendon band from the rectus femoris. Harvesting was done according to the usual surgical techniques of both harvests. Measures of length and diameter in 4S and 4S augmented with the rectus femoris band (4S +Q) configurations were performed separately by 3 evaluators. Results The quadriceps augmentation led to an average increase of 1.49 mm (95% confidence interval 1.03-1.95 mm) in diameter of the 4-strand hamstring grafts. The previously demonstrated threshold diameter of 8.5 mm was attained in only 30% of 4S grafts within this population in comparison with 88% when augmented with a quadriceps band. Conclusions In conclusion, supplementing doubled hamstring graft (4S) with quadricipital tendon in anterior cruciate ligament reconstruction (ACLR) increases the graft diameter by an average of 1.49 mm. It has the physical potential to reliably augment hamstring grafts that measure 7.5 mm in diameter or more in order to obtain an 8.5 mm when necessitated. Clinical Relevance Increased graft diameter is associated with a decreased risk of graft failure after ACLR. Because of this, it is important to identify methods to increase the size of grafts. This study investigates the use of a partial-width rectus femoris tendon band as an option to reliably augment graft sizes during ACLR.
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Affiliation(s)
| | | | - Sonia Bédard
- Sherbrooke University, Sherbrooke, Québec, Canada,Center for Research at the CHUS (CIUSSS de l’Estrie CHUS), Sherbrooke, Québec, Canada
| | - Karina Lebel
- Sherbrooke University, Sherbrooke, Québec, Canada,Research center on aging (CIUSSS de l’Estrie CHUS), Sherbrooke, Québec, Canada
| | - Frédéric Balg
- Sherbrooke University, Sherbrooke, Québec, Canada,Center for Research at the CHUS (CIUSSS de l’Estrie CHUS), Sherbrooke, Québec, Canada
| | - François Vézina
- Sherbrooke University, Sherbrooke, Québec, Canada,Address correspondence to Dr, François Vézina. Sherbrooke University, 3001 12th Avenue North, Sherbrooke, J1H 5H4, (Quebec), Canada.
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23
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Brzezinski A, Nasra M, Pfaff W, Imbergamo C, Simon M, Tarapore R, Xavier J, Ghodbane S, Gatt C. Five-Strand Hamstring Grafts are Biomechanically Comparable to Four-Strand Grafts and Offer Greater Diameter for Anterior Cruciate Ligament Reconstruction. Arthrosc Sports Med Rehabil 2022; 4:e1731-e1738. [PMID: 36312720 PMCID: PMC9596886 DOI: 10.1016/j.asmr.2022.06.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 06/28/2022] [Indexed: 11/29/2022] Open
Abstract
Purpose The purpose of this study was to compare the biomechanics of 4-strand and 5-strand hamstring constructs for anterior cruciate ligament grafts. Methods Thirty-six human cadaveric hamstring grafts were tested in 3 different conditions: (1) graft femoral fixation complex, (2) graft femoral and tibial fixation (GFTF) complex using a human model, and (3) GFTF complex using a porcine model. Grafts were tested on a tensile testing machine. Four-stranded grafts served as the control group, and 5-stranded grafts served as the experimental group. Cyclic elongation, ultimate load to failure, stiffness, and diameter of the grafts were analyzed. Results Average 4-strand graft diameter was 7.96 mm compared to 9.32 mm for the 5-strand graft (P = .00017). Average stiffness of grafts ≥8 mm was 105.04 N/mm compared to 85.05 N/mm for grafts <8 mm (P = .04988). There was a positive correlation between graft diameter and stiffness (13.4 N/mm per every 1 mm increase in diameter, r2 value of 13.1%, and F-significance of 0.02778). There were no significant differences in terms of ultimate load to failure, cyclic elongation, or stiffness between the experimental groups. Conclusion Five-strand hamstring grafts offer greater diameter and are biomechanically comparable to 4-strand equivalents at time 0. Grafts >8 mm offer significantly greater stiffness compared to grafts sized <8 mm. There is a weak positive correlation between graft diameter and stiffness. Clinical Relevance A potential drawback to hamstring grafts is their variability in size. Five-strand hamstring grafts provide increased diameter in comparison to 4-strand equivalents and might be used when quadrupled graft diameter is <8 mm.
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Affiliation(s)
| | - Matthew Nasra
- Lenox Hill Hospital, New York, New York
- Address correspondence to Matthew Nasra, 135 Somerset Street, New Brunswick, NJ, 08901.
| | - William Pfaff
- Rutgers-Robert Wood Johnson Medical School, New Brunswick, New Jersey
| | | | - Michael Simon
- Rutgers-Robert Wood Johnson Medical School, New Brunswick, New Jersey
| | - Rae Tarapore
- MedStar Union Memorial Hospital, Baltimore, Maryland
| | - Jorden Xavier
- Rutgers-Robert Wood Johnson Medical School, New Brunswick, New Jersey
| | - Salim Ghodbane
- Rutgers-Robert Wood Johnson Medical School, New Brunswick, New Jersey
| | - Charles Gatt
- Rutgers-Robert Wood Johnson Medical School, New Brunswick, New Jersey
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24
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Huard M, Hustin L, Detrembleur C, Letartre R. Are running stitches needed in DT4 Single Anteromedial Bundle Biological Augmentation transplant preparation? Acta Orthop Belg 2022; 88:355-358. [DOI: 10.52628/88.2.8982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Partial running whipstitches are commonly used in DT4 SAMBBA (Single Anteromedial Bundle Biological Augmentation) transplant preparation. We wanted to determine whether or not running whipstitches all over the graft affected the risk of iterative rupture and the overall outcome of the procedure. Two groups of 32 patients comparable in terms of sex, age, sport level and type of sport practiced were recruited in this prospective cohort study. DT4 SAMBBA was performed for all patients by a single surgeon. One cohort was treated with a full length running whipstitches during SAMBBA DT4 transplant preparation (F), the other had a classical SAMBBA DT4 graft preparation (NO F). The ACL RSI, subjective IKDC and KOOS scores were established preoperatively and with a 4 years follow-up. Complication rates (iterative rupture, cyclops syndrome) as well as pre and postoperative score variations were calculated.
No statistically significant difference in terms of frequency of iterative rupture or complications could be demonstrated (NO F 9.3% vs F 3.1%, p = 0.61). There was no difference either on score variations compared pre and post operatively. Full running whipstitches of the DT4 SAMBBA transplant does not seem to influence the ligamentoplasty outcomes with a 4 years follow-up.
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25
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Anterior Cruciate Ligament Reconstruction with 4-Strand Hamstring Tendon Construct May be Biomechanically Superior to 5-Strand Hamstring Tendon Construct When Using Femoral Suspensory Fixation. Arthrosc Sports Med Rehabil 2022; 4:e1097-e1102. [PMID: 35747627 PMCID: PMC9210479 DOI: 10.1016/j.asmr.2022.03.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Accepted: 03/11/2022] [Indexed: 11/20/2022] Open
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26
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Malige A, Baghdadi S, Hast MW, Schmidt EC, Shea KG, Ganley TJ. Biomechanical properties of common graft choices for anterior cruciate ligament reconstruction: A systematic review. Clin Biomech (Bristol, Avon) 2022; 95:105636. [PMID: 35428007 DOI: 10.1016/j.clinbiomech.2022.105636] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Revised: 03/21/2022] [Accepted: 03/25/2022] [Indexed: 02/07/2023]
Abstract
BACKGROUND This systematic review explores the differences in the intrinsic biomechanical properties of different graft sources used in anterior cruciate ligament (ACL) reconstruction as tested in a laboratory setting. METHODS Following Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, two authors conducted a systematic review exploring the biomechanical properties of ACL graft sources (querying PubMed, Cochrane, and Embase databases). Using the keywords "anterior cruciate ligament graft," "biomechanics," and "biomechanical testing," relevant articles of any level of evidence were identified as eligible and included if they reported on the biomechanical properties of skeletally immature or mature ACL grafts solely and if the grafts were studied in vitro, in isolation, and under similar testing conditions. Studies were excluded if performed on both skeletally immature and mature or non-human grafts, or if the grafts were tested after fixation in a cadaveric knee. For each graft, failure load, stiffness, Young's modulus, maximum stress, and maximum strain were recorded. FINDINGS Twenty-six articles were included. Most studies reported equal or increased biomechanical failure load and stiffness of their tested bone-patellar tendon-bone, hamstring, quadriceps, peroneus longus, tibialis anterior and posterior, Achilles, tensor fascia lata, and iliotibial band grafts compared to the native ACL. All recorded biomechanical properties had similar values between graft types. INTERPRETATION Most grafts used for ACL reconstruction are biomechanically superior to the native ACL. Utilizing a proper graft, combined with a standard surgical technique and a rigorous rehabilitation before and after surgery, will improve outcomes of ACL reconstruction.
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Affiliation(s)
- Ajith Malige
- St. Luke's University Health Network, Department of Orthopaedic Surgery, 801 Ostrum Street, Bethlehem, PA 18015, USA.
| | - Soroush Baghdadi
- Children's Hospital of Philadelphia Department of Orthopaedic Surgery 3401 Civic Center Boulevard, Philadelphia, PA 19104, USA
| | - Michael W Hast
- Biedermann Laboratory for Orthopaedic Research, University of Pennsylvania Department of Orthopaedic Surgery, 3737 Market Street 10th Floor, Suite 1050, Philadelphia, PA 19104, USA
| | - Elaine C Schmidt
- Biedermann Laboratory for Orthopaedic Research, University of Pennsylvania Department of Orthopaedic Surgery, 3737 Market Street 10th Floor, Suite 1050, Philadelphia, PA 19104, USA
| | - Kevin G Shea
- Stanford University Department of Orthopaedic Surgery 450 Broadway, Redwood City, CA 94063, USA
| | - Theodore J Ganley
- Children's Hospital of Philadelphia Department of Orthopaedic Surgery 3401 Civic Center Boulevard, Philadelphia, PA 19104, USA
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27
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Sherman WF, Flick TR, Weintraub MJ, Dranoff CS, Ross BJ, Patel AH, Ross AJ, Heard WM, Savoie FH, Penton JL. Addition of the Sartorius Tendon Improves Biomechanics of a Four-Strand Hamstring Anterior Cruciate Ligament Autograft. Arthroscopy 2022; 38:1584-1594. [PMID: 34715276 DOI: 10.1016/j.arthro.2021.10.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 10/13/2021] [Accepted: 10/16/2021] [Indexed: 02/02/2023]
Abstract
PURPOSE The purpose of this study was to quantify and compare the biomechanical properties and change in graft size when adding the sartorius tendon as a fifth strand to a four-strand ST-G hamstring autograft. Additionally, the sartorius tendon was tested individually to quantify its independent biomechanical properties. METHODS Four-strand and five-strand hamstring tendon grafts were harvested from matched cadaveric knees (mean age: 81.6 ± 9.8). These matched grafts were biomechanically tested using a MTS servohydraulic test system at a rate of testing representative of physiologic tears. The mean diameter, cross-sectional area, and ultimate load to failure were quantified and compared with a one-sided, paired Student's t-test. A P < .05 was considered statistically significant. RESULTS The mean diameter of the five-strand graft was significantly larger than the four-strand graft (9.30 ± .84 mm vs 8.10 ± .42 mm; P = .002). The average ultimate load to failure of the five-strand graft was 65.3% higher than the four-strand graft (2984.05 ± 1085.11 N vs. 1805.03 ± 557.69 N; P = .009) and added 14.8% to the diameter of the four strand ST-G autograft. CONCLUSIONS The addition of the sartorius tendon to a four-strand hamstring autograft significantly increased ultimate load to failure by 65%, graft cross-sectional area by 32%, and graft diameter by 15% compared to a traditional four-strand ST-G autograft. This information can be helpful to surgeons who wish to improve the strength of a four-strand ST-G autograft and for undersized grafts as an alternative to allograft supplementation. CLINICAL RELEVANCE The addition of the sartorius to the four-strand ST-G hamstring autograft significantly increases the ultimate load to failure and overall graft diameter, which can be particularly helpful in undersized autografts as an alternative to allograft supplementation.
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Affiliation(s)
- William F Sherman
- Department of Orthopaedic Surgery, Tulane University School of Medicine, New Orleans, Louisiana, U.S.A..
| | - Travis R Flick
- Department of Orthopaedic Surgery, Tulane University School of Medicine, New Orleans, Louisiana, U.S.A
| | - Matthew J Weintraub
- Tulane University School of Science and Engineering, New Orleans, Louisiana, U.S.A
| | - Charles S Dranoff
- Tulane University School of Science and Engineering, New Orleans, Louisiana, U.S.A
| | - Bailey J Ross
- Department of Orthopaedic Surgery, Tulane University School of Medicine, New Orleans, Louisiana, U.S.A
| | - Akshar H Patel
- Department of Orthopaedic Surgery, Tulane University School of Medicine, New Orleans, Louisiana, U.S.A
| | - Austin J Ross
- Department of Orthopaedic Surgery, Tulane University School of Medicine, New Orleans, Louisiana, U.S.A
| | - Wendell M Heard
- Department of Orthopaedic Surgery, Tulane University School of Medicine, New Orleans, Louisiana, U.S.A
| | - Felix H Savoie
- Department of Orthopaedic Surgery, Tulane University School of Medicine, New Orleans, Louisiana, U.S.A
| | - Judson L Penton
- Louisiana Orthopaedic Specialists, Lafayette, Louisiana, U.S.A
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28
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Biomechanics of hamstring tendon, quadriceps tendon, and bone-patellar tendon-bone grafts for anterior cruciate ligament reconstruction: a cadaveric study. EUROPEAN JOURNAL OF ORTHOPAEDIC SURGERY AND TRAUMATOLOGY 2022; 33:1067-1074. [PMID: 35362777 DOI: 10.1007/s00590-022-03247-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 03/09/2022] [Indexed: 10/18/2022]
Abstract
PURPOSE The three most commonly used autografts for anterior cruciate ligament reconstruction (ACL) are: bone-patellar tendon-bone (BTB), hamstring tendons (HT), and quadriceps tendon (QT). A cadaveric study was performed to determine if there were any differences in mechanical and structural properties under biomechanical testing. METHODS Twenty-seven graft specimens were harvested from 9 human cadaveric legs. Mean donor age was 75.2 years (range 53-85 years). Twenty-two specimens (8 HT, 7 QT, and 7 BTB) completed cyclic preconditioning from 50 to 800 N for 200 cycles and a load to failure test at an extension rate of 1 mm/s. Structural and mechanical properties of BTB, HT, and QT grafts were compared using a one-way ANOVA and Tukey's honest significant difference. RESULTS There was no difference in the ultimate load to failure (N) across all 3 graft types (p = 0.951). Quadriceps tendon demonstrated greater cross-sectional area (mm2) when compared to both HT and BTB (p = 0.001) and was significantly stiffer (N/mm) than HT but not BTB (p = 0.004). Stress (N/mm2) of the HT at ultimate load was greater than QT but not BTB (p = 0.036). Elastic modulus (MPa) of HT was greater than both QT and BTB (p = 0.016). CONCLUSION There was no difference in the ultimate load to failure of BTB, HT, and QT grafts harvested from the same specimens. All 3 grafts had similar loads to failure with a significant increase in stiffness when compared to the native ACL. Furthermore, QT demonstrated more favourable structural properties compared to HT and BTB with greater cross-sectional area to both HT and BTB and greater stiffness compared to HT.
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29
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Assi C, Bonnel F, Mansour J, Daher J, Gerges B, Khoury A, Yammine K. The gracilis and semitendinosus muscles: a morphometric study on 18 specimens with clinical implications. Surg Radiol Anat 2022; 44:813-820. [PMID: 35314874 DOI: 10.1007/s00276-022-02925-8] [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: 11/18/2021] [Accepted: 03/07/2022] [Indexed: 11/28/2022]
Abstract
INTRODUCTION The pes anserinus consists of the sartorius, semitendinosus, and gracilis muscles. They coalesce together with the leg fascia to form the anserine plate. The semitendinosus and gracilis both form the deep layer of this plate and are clinically relevant for ligament reconstruction. The aim of the study is to report a detailed morphometric evaluation of the semitendinosus and gracilis muscles and assess their clinical implications. METHODS Using a rigorous dissection process on 18 cadaveric hips, measurements of both the semitendinosus and gracilis muscles with bone parameters were conducted. We measured the following: (a) total femur, femoral shaft, and neck lengths, (b) total muscle lengths, and (c) intra-muscular and extra-muscular (free) tendon lengths. Correlation values between bone variables, muscle variables, and in-between muscle variables were computed. RESULTS The total muscle and the distal intra-muscular tendon length of the St and Gr are correlated with the total femur length. When compared to gracilis, the total muscle and distal intra-muscular tendon lengths of the ST are much better correlated with the total femur length. The free distal tendon length for both muscles did not show a significant correlation with any of the femoral bone lengths. CONCLUSION The variability of tendon length of the ST/Gr poses a significant challenge to surgeons. This study reports a detailed morphometric evaluation of the ST/Gr hamstring muscle and tendons. It revealed a positive correlation between the femoral length and the ST/Gr graft lengths. This could help orthopedic surgeons in predicting the graft lengths pre-operatively and develop better planning for reconstructive surgeries.
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Affiliation(s)
- Chahine Assi
- Department of Orthopedic Surgery, Lebanese American University Medical Center-Rizk Hospital, Lebanese American University School of Medicine, Achrafieh, Lebanon.,Center for Evidence-Based Anatomy, Sport and Orthopedics Research, Beirut, Lebanon
| | - Francois Bonnel
- Anatomy Laboratory, School of Medicine, BD. Henri IV, 34000, Montpellier, France.,Department of Orthopedic Surgery, Clinique Beau Soleil, 119 Avenue de Lodeve, 34070, Montpellier, France
| | - Jad Mansour
- Department of Orthopedic Surgery, Lebanese American University Medical Center-Rizk Hospital, Lebanese American University School of Medicine, Achrafieh, Lebanon.,Center for Evidence-Based Anatomy, Sport and Orthopedics Research, Beirut, Lebanon
| | - Jimmy Daher
- Department of Orthopedic Surgery, Lebanese American University Medical Center-Rizk Hospital, Lebanese American University School of Medicine, Achrafieh, Lebanon.,Center for Evidence-Based Anatomy, Sport and Orthopedics Research, Beirut, Lebanon
| | - Bassam Gerges
- Department of Anesthesia, Lebanese American University Medical Center-Rizk Hospital, Lebanese American University School of Medicine, Achrafieh, Lebanon
| | - Alfred Khoury
- Department of Orthopedic Surgery, Lebanese American University Medical Center-Rizk Hospital, Lebanese American University School of Medicine, Achrafieh, Lebanon
| | - Kaissar Yammine
- Department of Orthopedic Surgery, Lebanese American University Medical Center-Rizk Hospital, Lebanese American University School of Medicine, Achrafieh, Lebanon. .,Center for Evidence-Based Anatomy, Sport and Orthopedics Research, Beirut, Lebanon.
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Cregar WM, Huddleston HP, Shewman EF, Cole BJ, Yanke AB. Lateral Translation of the Patella in MPFC Reconstruction: A Biomechanical Study of Three Approaches. J Knee Surg 2022; 36:622-630. [PMID: 35144302 DOI: 10.1055/s-0041-1741549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The purpose of this study was to investigate whether differences exist in preventing lateral patellar translation between three distinct medial patellofemoral complex (MPFC) reconstruction procedures at varying knee flexion angles. Six cadaveric knee specimens were dissected, potted, and placed in a customized jig for testing. Lateral patellar displacement was measured at intervals between 0 and 90 degrees of knee flexion using a tensile testing machine with a 20 N lateral force applied to the patella. Each specimen was tested with the MPFC intact, sectioned, and after each of the three reconstruction techniques: MPFL, hybrid, and medial quadriceps-tendon femoral (MQTFL) reconstructions. There was significantly increased lateral patellar displacement following MPFC sectioning when compared with the intact state in early degrees of flexion (10-30 degrees) (p < 0.05). All three reconstruction groups restored patella stability and reduced lateral patellar displacement following sectioning from 0 to 30 degrees of flexion (p < 0.05). When compared with the intact group, all three reconstruction groups demonstrated reduced patella translation at full knee extension, while the MPFL and hybrid reconstruction groups additionally demonstrated significant reduction in patella translation at 10 degrees of flexion (p < 0.05). No significant differences were observed between the three reconstruction groups. This biomechanical study demonstrates the efficacy of three MPFC reconstruction techniques in patella stabilization following sectioning. Our results suggest that MPFL reconstruction may provide the most robust patella stabilization, whereas MQTFL reconstruction may be the most forgiving construct. This study suggests that MQTFL and hybrid reconstructions provide adequate resistance to lateral translation and may be used as an alternative to MPFL reconstruction.
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Affiliation(s)
- William M Cregar
- Division of Orthopedic Sports Medicine, Rush University Medical Center, Chicago, Illinois
| | - Hailey P Huddleston
- Division of Orthopedic Sports Medicine, Rush University Medical Center, Chicago, Illinois
| | - Elizabeth F Shewman
- Division of Orthopedic Sports Medicine, Rush University Medical Center, Chicago, Illinois
| | - Brian J Cole
- Division of Orthopedic Sports Medicine, Rush University Medical Center, Chicago, Illinois
| | - Adam B Yanke
- Division of Orthopedic Sports Medicine, Rush University Medical Center, Chicago, Illinois
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Bachmaier S, Smith PA, Argintar EH, Chahla J, Higgins LD, Wijdicks CA. Independent Suture Augmentation With All-Inside Anterior Cruciate Ligament Reconstruction Reduces Peak Loads on Soft-Tissue Graft. A Biomechanical Full-Construct Study. Arthroscopy 2022; 38:88-98. [PMID: 34655766 DOI: 10.1016/j.arthro.2021.09.032] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 09/23/2021] [Accepted: 09/28/2021] [Indexed: 02/02/2023]
Abstract
PURPOSE To evaluate the effect of suture augmentation (SA) of 7-mm and 9-mm diameter graft on load sharing, elongation, stiffness, and load to failure for all-inside anterior cruciate ligament reconstruction (ACLR) in a biomechanical Study was funded by Arthrex ID: EMEA-16020. full-construct porcine model. METHODS Bovine tendon grafts, 7-mm and 9-mm diameter, with and without SA were tested using suspensory fixation (n = 8). The independent SA was looped over a femoral button and knotted on a tibial button. Preconditioned constructs were incrementally increased loaded (100N/1,000 cycles) from 100N to 400N for 4,000 cycles (0.75 Hz) with final pull to failure (50 mm/min). Isolated mechanical and optical measurements during construct loading of the SA allowed to quantify the load and elongation range during load sharing. Construct elongation, stiffness and ultimate strength were further assessed. RESULTS Load sharing in 7-mm grafts started earlier (200N) with a significant greater content than 9-mm grafts (300N) to transfer 31% (125N) and 20% (80N) of the final load (400N) over the SA. Peak load sharing with SA reduced total elongation for 7-mm (1.90 ± 0.27 mm vs 4.77 ± 1.08 mm, P < .001) and 9-mm grafts (1.50 ± 0.33 mm vs 3.57 ± 0.54 mm, P < .001) and adequately increased stiffness of 7-mm (113.4 ± 9.3 N/mm vs 195.9 ± 9.8 N/mm, P < .001) to the level of augmented 9-mm grafts (208.9 ± 13.7N/mm). Augmentation of 7-mm (835 ± 92N vs 1,435 ± 228N, P < .001) and 9-mm grafts (1,044 ± 49N vs 1,806 ± 157N, P < .001) significantly increased failure loads. CONCLUSIONS Load sharing with SA occurred earlier (200N vs 300N) in lower stiffness 7-mm grafts to carry 31% (7-mm) and 20% (9-mm) of the final load (400N). Loads until peak load sharing were transferred over the graft. Augmented constructs showed significantly lower construct elongation and increased stiffness without significance between variable grafts. Failure load of augmented grafts were significantly increased. CLINICAL RELEVANCE Suture tape ligament augmentation may potentially protect biological grafts from excessive peak loading and elongation, thus reducing the risk of graft tears.
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Affiliation(s)
- Samuel Bachmaier
- Department of Orthopedic Research, Arthrex Inc., Munich, Germany
| | | | | | - Jorge Chahla
- Rush University Medical Center, Chicago, Illinois, U.S.A
| | | | - Coen A Wijdicks
- Department of Orthopedic Research, Arthrex Inc., Munich, Germany.
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Alomar AZ, Nasser ASB, Kumar A, Kumar M, Das S, Mittal S. Hamstring graft diameter above 7 mm has a lower risk of failure following anterior cruciate ligament reconstruction. Knee Surg Sports Traumatol Arthrosc 2022; 30:288-297. [PMID: 33619635 DOI: 10.1007/s00167-021-06503-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 02/10/2021] [Indexed: 11/30/2022]
Abstract
PURPOSE Multi-stranded hamstring-tendon autografts have been widely used for anterior cruciate ligament reconstruction (ACLR) surgeries. Recently, smaller diameter hamstring autografts have been linked with the risk of failure or graft rupture. However, there is limited evidence concerning the optimal diameter of the hamstring autografts for ACLR. The current systematic review and meta-analysis analysed the association of ACLR failure with the diameter of hamstring autografts. METHODS A systematic search of three major scientific databases (Pubmed, EMBASE, and Cochrane library) was conducted to identify studies that presented ACLR failure-related outcomes with different diameters of hamstring autografts. The pooled data from the included studies were analysed to investigate the association between ACLR failure and the cut-off diameters of 6, 7, 8, and 9 mm. Subgroup analyses based on the level of evidence and follow-up duration were also performed at each cut-off diameter. RESULTS Of the 2282 studies screened, 16 reported failure rates with hamstring autografts of different diameters, 15 of which were included in the meta-analysis. A graft diameter ≥ 7 mm was associated with significantly lower ACLR failure rates than a graft diameter < 7 mm (p = 0.005), based on pooled data of 19,799 cases. Age < 20 years and higher physical activity were associated with significantly higher ACLR failure rates. CONCLUSION The current systematic review suggests that the hamstring graft diameter for ACLR should be more than 7 mm considering the significantly higher failure rates with graft diameters less than 7 mm. LEVEL OF EVIDENCE Level IV.
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Affiliation(s)
| | | | - Arvind Kumar
- Department of Orthopaedics, Hamdard Institute of Medical Sciences and Research, New Delhi, India.
| | - Mukesh Kumar
- Department of Orthopaedics, Hamdard Institute of Medical Sciences and Research, New Delhi, India
| | - Saubhik Das
- Department of Orthopaedics, Rajendra Institute of Medical Sciences (RIMS), Ranchi, India
| | - Samarth Mittal
- Department of Orthopaedics, JPNATC, AIIMS New Delhi, New Delhi, India
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Preoperative ultrasound predicts the intraoperative diameter of the quadriceps tendon autograft more accurately than preoperative magnetic resonance imaging for anterior cruciate ligament reconstruction. Knee Surg Sports Traumatol Arthrosc 2022; 30:52-60. [PMID: 33459834 DOI: 10.1007/s00167-020-06408-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 12/07/2020] [Indexed: 10/22/2022]
Abstract
PURPOSE Sizing of potential autografts is essential to match the native anterior cruciate ligament (ACL) dimensions when performing ACL reconstruction (ACLR). We aimed to investigate the accuracy and reliability of the thickness and cross-sectional area (CSA) assessments for the prediction of the intraoperative diameter of the QT autograft using preoperative ultrasound and MRI. METHODS Thirty patients (mean age ± standard deviation, 19.9 ± 5.0 years), who underwent ACLR using QT autograft, were included. The maximum thickness of the QT was assessed at 15 and 30 mm proximal using ultrasound with a long axis image, and at 15 mm proximal to the superior pole of the patella using MRI with a sagittal image. The CSA was assessed at the central 10 mm of the medial-lateral QT width at 30 mm proximal using ultrasound with a short axis image, and at 15 mm proximal to the superior pole of the patella using MRI with an axial image. Intraoperatively, QT autograft was harvested with a 10 mm width and the diameter was measured using a graft sizing device. RESULTS Intra- and inter-observer reliabilities of all measurements using ultrasound and MRI were good (Intra-class correlation coefficient, 0.720-0.941). Correlation coefficient with the intraoperative diameter of the QT autograft was higher in ultrasound (R = 0.738-0.791, P < 0.001) than MRI (R = 0.449-0.543, P = 0.002-0.013). CONCLUSIONS Preoperative ultrasound predicted the intraoperative diameter of the QT autograft more accurately than MRI. Ultrasound may be used clinically to assure a sufficiently large QT autograft diameter to match the diameter of the patient's native ACL. LEVEL OF EVIDENCE Level III.
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van Vijven M, van Groningen B, Janssen RPA, van der Steen MC, van Doeselaar M, Stefanoska D, van Donkelaar CC, Ito K, Foolen J. Local variations in mechanical properties of human hamstring tendon autografts for anterior cruciate ligament reconstruction do not translate to a mechanically inferior strand. J Mech Behav Biomed Mater 2021; 126:105010. [PMID: 34896765 DOI: 10.1016/j.jmbbm.2021.105010] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 11/17/2021] [Accepted: 11/25/2021] [Indexed: 11/25/2022]
Abstract
A ruptured anterior cruciate ligament (ACL) is often reconstructed with a multiple-strand autograft of a semitendinosus tendon alone or combined with a gracilis tendon. Up to 10% of patients experience graft rupture. This potentially results from excessive local tissue strains under physiological loading which could either result in direct mechanical failure of the graft or induce mechanobiological weakening. Since the original location in the hamstring tendon cannot be traced back from an autograft rupture site, this study explored whether clinical outcome could be further improved by avoiding specific locations or regions of human semitendinosus and/or gracilis tendons in ACL grafts due to potential mechanical or biochemical inferiority. Additionally, it examined numerically which clinically relevant graft configurations experience the lowest strains - and therefore the lowest rupture risk - when loaded with equal force. Remnant full-length gracilis tendons from human ACL reconstructions and full-length semitendinosus- and ipsilateral gracilis tendons of human cadaveric specimens were subjected to a stress-relaxation test. Locations at high risk of mechanical failure were identified using particle tracking to calculate local axial strains. As biochemical properties, the water-, collagen-, glycosaminoglycan- and DNA content per tissue region (representing graft strands) were determined. A viscoelastic lumped parameter model per tendon region was calculated. These models were applied in clinically relevant virtual graft configurations, which were exposed to physiological loading. Configurations that provided lower stiffness - i.e., experiencing higher strains under equal force - were assumed to be at higher risk of failure. Suitability of the gracilis tendon proper to replace semitendinosus muscle-tendon junction strands was examined. Deviations in local axial strains from the globally applied strain were of similar magnitude as the applied strain. Locations of maximum strains were uniformly distributed over tendon lengths. Biochemical compositions varied between tissue regions, but no trends were detected. Viscoelastic parameters were not significantly different between regions within a tendon, although semitendinosus tendons were stiffer than gracilis tendons. Virtual grafts with a full-length semitendinosus tendon alone or combined with a gracilis tendon displayed the lowest strains, whereas strains increased when gracilis tendon strands were tested for their suitability to replace semitendinosus muscle-tendon junction strands. Locations experiencing high local axial strains - which could increase risk of rupture - were present, but no specific region within any of the investigated graft configurations was found to be mechanically or biochemically deviant. Consequently, no specific tendon region could be indicated to provide a higher risk of rupture for mechanical or biochemical reasons. The semitendinosus tendon provided superior stiffness to a graft compared to the gracilis tendon. Therefore, based on our results it would be recommended to use the semitendinosus tendon, and use the gracilis tendon in cases where further reinforcement of the graft is needed to attain the desired length and cross-sectional area. All these data support current clinical standards.
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Affiliation(s)
- M van Vijven
- Regenerative Engineering & Materials, Department of Biomedical Engineering, Eindhoven University of Technology, PO Box 513, 5600, MB, Eindhoven, the Netherlands; Institute for Complex Molecular Systems, Eindhoven University of Technology, PO Box 513, 5600, MB, Eindhoven, the Netherlands
| | - B van Groningen
- Department of Orthopaedic Surgery & Trauma, Máxima MC: Dominee Theodor Fliednerstraat 1, 5631, BM, Eindhoven, the Netherlands
| | - R P A Janssen
- Regenerative Engineering & Materials, Department of Biomedical Engineering, Eindhoven University of Technology, PO Box 513, 5600, MB, Eindhoven, the Netherlands; Department of Orthopaedic Surgery & Trauma, Máxima MC: Dominee Theodor Fliednerstraat 1, 5631, BM, Eindhoven, the Netherlands; Value-Based Health Care, Department of Paramedical Sciences, Fontys University of Applied Sciences, Postbus 347, 5600, AH, Eindhoven, the Netherlands
| | - M C van der Steen
- Department of Orthopaedic Surgery & Trauma, Máxima MC: Dominee Theodor Fliednerstraat 1, 5631, BM, Eindhoven, the Netherlands; Department of Orthopaedic Surgery & Trauma, Catharina Hospital Eindhoven, Michelangelolaan 2, 5623, EJ, Eindhoven, the Netherlands
| | - M van Doeselaar
- Regenerative Engineering & Materials, Department of Biomedical Engineering, Eindhoven University of Technology, PO Box 513, 5600, MB, Eindhoven, the Netherlands
| | - D Stefanoska
- Regenerative Engineering & Materials, Department of Biomedical Engineering, Eindhoven University of Technology, PO Box 513, 5600, MB, Eindhoven, the Netherlands
| | - C C van Donkelaar
- Regenerative Engineering & Materials, Department of Biomedical Engineering, Eindhoven University of Technology, PO Box 513, 5600, MB, Eindhoven, the Netherlands; Institute for Complex Molecular Systems, Eindhoven University of Technology, PO Box 513, 5600, MB, Eindhoven, the Netherlands
| | - K Ito
- Regenerative Engineering & Materials, Department of Biomedical Engineering, Eindhoven University of Technology, PO Box 513, 5600, MB, Eindhoven, the Netherlands; Institute for Complex Molecular Systems, Eindhoven University of Technology, PO Box 513, 5600, MB, Eindhoven, the Netherlands
| | - J Foolen
- Regenerative Engineering & Materials, Department of Biomedical Engineering, Eindhoven University of Technology, PO Box 513, 5600, MB, Eindhoven, the Netherlands; Institute for Complex Molecular Systems, Eindhoven University of Technology, PO Box 513, 5600, MB, Eindhoven, the Netherlands.
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Looney AM, McCann JA, Serino J, Orman S, Rabe JL, Postma WF. Anterior Cruciate Ligament Reconstruction Graft Technique Reliably Yields Grafts With 8.0-mm Diameter or Larger. Orthopedics 2021; 44:e539-e545. [PMID: 34292809 DOI: 10.3928/01477447-20210618-14] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The significance of graft diameter in anterior cruciate ligament reconstruction (ACLR) with soft tissue grafts is well established, with a minimum graft diameter of 8.0 mm associated with lower rates of revision surgery. Consistently achieving grafts that meet or exceed the ideal diameter of 8.0 mm is still a concern with traditional tibial screw fixation, even with quadrupled hamstring autografts. The authors hypothesized that following a simple intraoperative algorithm selectively incorporating the gracilis tendon in an 8-stranded construct for all-inside ACLR with suspensory fixation on both ends of the graft would consistently achieve graft diameters of 8.0 mm or larger by allowing more of the graft material to contribute to increased diameter instead of increased length for screw fixation, with no allograft tissue required. A total of 113 eligible cases were identified, including 70 male patients and 43 female patients (mean±SD age, 25.92±6.47 years; range, 14-49 years). All 113 grafts (100%) were at least 8.0 mm in diameter. There were 8 grafts that were 8.0 mm. Overall mean±SD graft diameter was 9.32±0.71 mm (median, 9.5 mm; range, 8.0-11.0 mm). There were no cases in which allograft tissue was needed to increase graft size. An analysis of 113 cases of all-inside hamstring autograft ACLR with dual suspensory fixation showed that a graft diameter of at least 8.0 mm was achieved in every case, without the use of allograft tissue. These results suggest that this technique for ACLR is reliable in producing grafts that meet or exceed the recommended minimum diameter of 8.0 mm. [Orthopedics. 2021;44(4):e539-e545.].
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Lowenstein NA, Haber DB, Ostergaard PJ, Collins JE, Matzkin EG. All-Inside Anterior Cruciate Ligament Reconstruction Using Quadrupled Semitendinosus: Comparable 2-Year Outcomes in Male and Female Patients. Arthroscopy 2021; 37:3140-3148. [PMID: 33892073 DOI: 10.1016/j.arthro.2021.03.077] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 03/22/2021] [Accepted: 03/23/2021] [Indexed: 02/02/2023]
Abstract
PURPOSE To determine 2-year functional outcomes using an all-inside quadrupled semitendinosus anterior cruciate ligament (ACL) reconstruction technique in male and female patients. METHODS A total of 100 patients who underwent quadrupled semitendinosus all-inside hamstring ACL reconstruction by a single surgeon were enrolled. Patient-reported outcome scores collected preoperatively and postoperatively included visual analog scale, Veterans Rand 12-Item Health Survey (VR-12; Physical and Mental), Marx Activity Scale, Knee Injury and Osteoarthritis Outcome Scores (KOOS), and Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC). RESULTS A total of 100 ACL reconstructions comprising 62 female, and 38 male patients were included in this study. Mean graft diameter was 9.4 mm in female and 9.8 mm in male patients (range, 9-11). Outcome scores demonstrated improvement from preoperative to 2-year postoperative respectively: visual analog scale pain 3.18, 1.07, VR-12 physical 36.35, 52.64, VR-12 mental 53.96, 54.65, KOOS pain 59.17, 89.03, KOOS symptoms 52.64, 80.79, KOOS Activities of Daily Living 69.38, 95.4, KOOS Sport 28.97, 81.25, KOOS Quality of Life 27.54, 71.56, WOMAC Pain 71.56, 92.65, WOMAC Stiffness 60.55, 84.13, and WOMAC Function 69.38, 95.4. Marx activity score decreased from baseline (10.98) to 2 years' postoperatively (8.75). At 2 years, patient expectations were met or exceeded with regards to pain (94%), motion and strength (91%), normal function of daily living (95%), and return to sport (79%). CONCLUSIONS Anatomic all-inside quadrupled semitendinosus ACL reconstruction improves functional outcomes similarly to previous studies between baseline and clinical follow-up at 1-year and 2-years postoperatively and is comparable in both male and female patients. LEVEL OF EVIDENCE Level III, retrospective comparative study.
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Affiliation(s)
- Natalie A Lowenstein
- Department of Orthopedic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, U.S.A
| | - Daniel B Haber
- Department of Orthopedic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, U.S.A
| | - Peter J Ostergaard
- Department of Orthopedic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, U.S.A
| | - Jamie E Collins
- Department of Orthopedic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, U.S.A
| | - Elizabeth G Matzkin
- Department of Orthopedic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, U.S.A..
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Walczak BE, Hetzel SJ, Akoh CC, Baer GS. Intraoperative Conversion to Five-Strand Hamstring Autograft Configuration Significantly Increases Anterior Cruciate Ligament Graft Diameter Independent of Patient Characteristics. J Knee Surg 2021; 34:828-833. [PMID: 31841167 PMCID: PMC7266707 DOI: 10.1055/s-0039-3400955] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Intraoperative conversion of a four-strand hamstring autograft to a five-strand configuration during an anterior cruciate ligament (ACL) reconstruction has been reported. However, the expected change in graft size and the dependence on patient characteristics are currently not well described. The purpose of this study was to determine the effective change in hamstring graft diameter and reliance on patient characteristics when intraoperatively converting a four-strand hamstring autograft into a five-strand configuration during an ACL reconstruction. A prospective, paired cohort study design was used to measure individual hamstring autograft diameter intraoperatively using traditional four-strand configuration followed by a five-strand configuration. All hamstring tendons included were long enough to consider a five-strand configuration. Five-strand hamstring autograft increased graft diameter in all patients. Hamstring tendon graft diameter increased by an average of 0.99 mm (95% confidence interval [CI]: 0.84-1.11) in the five-strand configuration compared with the traditional four-strand configuration (mean: 7.8 mm). There was no significant difference in the average increase in graft diameter between males (1.04 mm) and females (0.92 mm) (p = 0.323). Eighty-three percent (95% CI: 57.8-95.6) of average graft diameters ≤ 8 mm in the four-strand configuration achieved an average graft diameter of >8 mm in the five-strand configuration, and 70% (95% CI: 35.4- 91.9) of four-strand configuration average diameters < 8 mm achieved an average graft diameter > 8.0 mm in the five-strand configuration. Five-strand hamstring autograft reliably increased intraoperative hamstring tendon autograft diameter, with an average of 1 mm, compared with traditional four-strand configuration. This increase in diameter is independent of sex and remained significant when controlling for age, laterality, body mass index, and semitendinosus length.
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Affiliation(s)
- Brian E. Walczak
- Department of Orthopedics and Rehabilitation, University of Wisconsin-Madison, 1685 Highland Avenue, Madison, WI 53792
| | - Scott J. Hetzel
- Department of Orthopedics and Rehabilitation, University of Wisconsin-Madison, 1685 Highland Avenue, Madison, WI 53792
| | - Craig Chike Akoh
- Department of Orthopedics and Rehabilitation, University of Wisconsin-Madison, 1685 Highland Avenue, Madison, WI 53792
| | - Geoffrey S. Baer
- Department of Orthopedics and Rehabilitation, University of Wisconsin-Madison, 1685 Highland Avenue, Madison, WI 53792
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Kumar S, Kumar H, Singh PP, Sharma P, Rai Sharma AK, Singh MK, Kumar R. Quadrupled Hamstring Graft Diameter Adequacy in Anterior Cruciate Ligament Reconstruction Using Patient Anthropometry: A Prospective Cohort Study in Indian Males. Cureus 2021; 13:e15920. [PMID: 34336424 PMCID: PMC8312770 DOI: 10.7759/cureus.15920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/25/2021] [Indexed: 11/05/2022] Open
Abstract
Background and aim The diameter of the graft used for the reconstruction of the anterior cruciate ligament (ACL) is an important determinant for the overall strength and future outcome of the operative procedure. Preoperative prediction of quadrupled hamstrings autograft (QHAG) diameter can prove to be of help in forecasting the need for augmentation or alternative grafts like quadriceps, bone-patellar tendon-bone autograft, and synthetic grafts. The relationship between the preoperatively assessed anthropometric parameters and the obtained quadrupled hamstrings graft diameter has not been extensively studied, especially in the population of Indian origin. This study aimed at investigating whether a correlation exists between the measured anthropometric parameters like age, weight, height, thigh circumference, and body mass index (BMI) and the intraoperatively obtained diameter of hamstring graft for ACL reconstruction in the study population of Indian male subjects. Study design A prospective cohort study conducted in a tertiary care center and teaching hospital in a district in central Uttar Pradesh, India. Methods The preoperative anthropometric data (age, height, weight, BMI, and thigh circumference of the injured side) of 73 Indian male subjects undergoing primary ACL reconstructive surgeries between May 2018 and August 2020 were prospectively collected, and their respective intraoperative QHAG diameters measured and recorded. Pearson's correlation test was employed to determine the correlation between the preoperative demographic and anthropometric data and the obtained corresponding graft diameters. Simple linear regression was performed to obtain the graphical plots and determine the relationship between the dependent and independent variables. Of these, the variables showing significant association were subjected to stepwise linear regression to identify and exclude the confounder(s) and obtain the predicted equation. Results The study comprised 73 male participants. The study participants' mean age was found to be 33.7 years, mean height was 173.1 cm, mean weight was 71.2 kg, mean BMI was 23.7 kg/m2, mean thigh circumference was 50.4 cm, and the obtained mean graft diameter was 8.0 mm. A strongly positive correlation was observed between height and the graft diameter (r=0.940, P=0.000) and thigh circumference and the graft diameter (r=0.769, P=0.000). In contrast, weight showed a moderately positive correlation with the graft diameter (r=0.514, P=0.000). A very weakly positive correlation was observed between the BMI of the subjects and the obtained graft diameters (r=0.236, P=0.045). However, no correlation was observed between the age and the final graft diameters (r=0.140, P=0.238). Subsequent linear regression analysis indicates that only height (R2=0.883, P=0.000; strong) and the thigh circumference (R2=0.591, P=0.000; moderate) share a significant predictive value for the obtained QHAG. Both height and thigh circumference together were good predictors for graft diameter as determined by multiple regression (F (2,70)=272.372, P<0.001), with an R2 of 0.886. Conclusion Certain anthropometric parameters depict a positive correlation with the QHAG diameter and can assist in preoperative planning, predicting the possible harvested graft diameter and the need for alternative grafts or augmentation during ACL reconstructive surgeries.
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Affiliation(s)
- Sunil Kumar
- Orthopaedics, Uttar Pradesh University of Medical Sciences, Etawah, IND
| | - Harish Kumar
- Orthopaedics, Uttar Pradesh University of Medical Sciences, Etawah, IND
| | - Prashant P Singh
- Orthopaedics, Uttar Pradesh University of Medical Sciences, Etawah, IND
| | - Pranav Sharma
- Orthopaedics, Uttar Pradesh University of Medical Sciences, Etawah, IND
| | - Amit K Rai Sharma
- Orthopaedics, Uttar Pradesh University of Medical Sciences, Etawah, IND
| | - Mohit K Singh
- Orthopaedics, Uttar Pradesh University of Medical Sciences, Etawah, IND
| | - Rajendra Kumar
- Orthopaedics, Uttar Pradesh University of Medical Sciences, Etawah, IND
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Does a combined screw and dowel construct improve tibial fixation during anterior cruciate ligament reconstruction? EUROPEAN JOURNAL OF ORTHOPAEDIC SURGERY AND TRAUMATOLOGY 2021; 32:759-765. [PMID: 34125380 DOI: 10.1007/s00590-021-03049-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Accepted: 04/28/2021] [Indexed: 10/21/2022]
Abstract
PURPOSE The aims of the present study were to compare the biomechanical properties of tibial fixation in hamstring-graft ACL reconstruction using interference screw and a novel combination interference screw and dowel construct. MATERIAL AND METHODS We compared the fixation of 30 (2- and 4-stranded gracilis and semitendinosis tendons) in 15 fresh-frozen porcine tibiae with a biocomposite resorbable interference screw (Group 1) and a screw and dowel construct (Group 2). Each graft was subjected to load-to-failure testing (50 mm/min) to determine maximum load, displacement at failure and pullout strength. RESULTS There were no significant differences between the biomechanical properties of the constructs. Multivariate analysis demonstrated that combination constructs (β = 140.20, p = 0.043), screw diameter (β = 185, p = 0.006) and 4-strand grafts (β = 51, p = 0.050) were associated with a significant increase in load at failure. Larger screw diameter was associated with increased construct stiffness (β = 20.15, p = 0.020). CONCLUSION The screw and dowel construct led to significantly increased fixation properties compared to interference screws alone in a porcine model. Increased screw diameter and utilization of 4-strand ACL grafts also led to improvement in load-to-failure of the construct. However, this is an in vitro study and additional investigations are needed to determine whether the results are reproducible in vivo. LEVEL OF EVIDENCE Level V; Biomechanical study.
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Iwaasa T, Tensho K, Koyama S, Shimodaira H, Horiuchi H, Saito N, Takahashi J. Clinical outcome of a new remnant augmentation technique with anatomical double-bundle anterior cruciate ligament reconstruction: Comparison among remnant preservation, resection, and absent groups. ASIA-PACIFIC JOURNAL OF SPORT MEDICINE ARTHROSCOPY REHABILITATION AND TECHNOLOGY 2021; 25:22-29. [PMID: 34141592 PMCID: PMC8167804 DOI: 10.1016/j.asmart.2021.05.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 03/21/2021] [Accepted: 05/10/2021] [Indexed: 11/16/2022]
Abstract
Purpose The aim of this study was to verify the effects of a new remnant augmentation technique with anatomical double-bundle anterior cruciate ligament (ACL) reconstruction for postoperative clinical scores, anterior stability and frequency of complications compared to remnant removal and cases with remnant defects. Methods The 105 patients who underwent anatomical double-bundle ACL reconstruction were divided into three groups. If the remnant was a Crain I-III type, remnant-preserving bone tunnel creation was attempted. After the creation of the bone tunnel, good continuity was maintained in 34 patients (preserved group). Due to lost continuity, the remnant was resected in 26 patients (resected group). No identifiable remnant continuity remained (Crain IV) in 45 patients (absent group). The Lysholm knee score, Tegner activity scale, International Knee Documentation Committee (IKDC) subjective score, anterior stability measured using the KT-1000 arthrometer at 2 years postoperatively, and frequency of complications were compared among the three groups. Univariate and multiple linear regression analysis were performed to clarify the factors affecting postoperative anterior stability. Results The Lysholm knee score, Tegner activity scale, IKDC subjective score, and frequency of complications were not significantly different among the groups. The mean side-to-side difference of anterior stability was significantly better in the preserved group (0.3 ± 1.6 mm) compared to the resected group (1.6 ± 2.3 mm, p = 0.003) and absent group (1.6 mm ± 1.7, p = 0.009). The multiple linear regression analysis showed remnant preservation significantly related to postoperative anterior stability. Conclusion Although there were no differences in clinical scores, the ACL reconstruction with new preservation technique showed good anterior stability and no difference in the frequency of complications.
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Affiliation(s)
- Tomoya Iwaasa
- Department of Orthopedic Surgery, Shinshu University School of Medicine, Asahi 3-1-1, Matsumoto, Nagano, 390-8621, Japan
| | - Keiji Tensho
- Department of Orthopedic Surgery, Shinshu University School of Medicine, Asahi 3-1-1, Matsumoto, Nagano, 390-8621, Japan
| | - Suguru Koyama
- Department of Orthopedic Surgery, Shinshu University School of Medicine, Asahi 3-1-1, Matsumoto, Nagano, 390-8621, Japan
| | - Hiroki Shimodaira
- Department of Orthopedic Surgery, Shinshu University School of Medicine, Asahi 3-1-1, Matsumoto, Nagano, 390-8621, Japan
| | - Hiroshi Horiuchi
- Department of Orthopedic Surgery, Shinshu University School of Medicine, Asahi 3-1-1, Matsumoto, Nagano, 390-8621, Japan
| | - Naoto Saito
- Institute for Biomedical Sciences, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University School of Medicine, Asahi 3-1-1, Matsumoto, Nagano, 390-8621, Japan
| | - Jun Takahashi
- Department of Orthopedic Surgery, Shinshu University School of Medicine, Asahi 3-1-1, Matsumoto, Nagano, 390-8621, Japan
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Shen X, Qin Y, Zuo J, Liu T, Xiao J. A Systematic Review of Risk Factors for Anterior Cruciate Ligament Reconstruction Failure. Int J Sports Med 2021; 42:682-693. [PMID: 33784786 DOI: 10.1055/a-1393-6282] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Although most studies have introduced risk factors related to anterior cruciate ligament reconstruction failure, studies on combinations of high-risk factors are rare. To provide a systematic review of the risk factors of anterior cruciate ligament reconstruction failure to guide surgeons through the decision-making process, an extensive literature search was performed of the Medline, Embase and Cochrane Library databases. Studies published between January 1, 2009, and September 19, 2019, regarding the existing evidence for risk factors of anterior cruciate ligament reconstruction failure or graft failure were included in this review. Study quality was evaluated with the quality index. Ultimately, 66 articles met our criteria. There were 46 cases classified as technical factors, 21 cases as patient-related risk factors, and 14 cases as status of the knee joint. Quality assessment scores ranged from 14 to 24. This systematic review provides a comprehensive summary of the risk factors for anterior cruciate ligament reconstruction failure, including technical factors, patient-related factors, and the factors associated with the status of the knee joint. Emphasis should be placed on avoiding these high-risk combinations or correcting modifiable risk factors during preoperative planning to reduce the rate of graft rupture and anterior cruciate ligament reconstruction failure.
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Affiliation(s)
- Xianyue Shen
- Department of Orthopedics,The Second Hospital of Jilin University, Changchun, China
| | - Yanguo Qin
- Department of Orthopedics,The Second Hospital of Jilin University, Changchun, China
| | - Jianlin Zuo
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Tong Liu
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Jianlin Xiao
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, Changchun, China
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Funchal LFZ, Ortiz R, Jimenez A, Funchal GDG, Cohen M, Astur DC. Remnant Muscle Preservation on Hamstring Tendon Autograft During ACL Reconstruction Promotes Volumetric Increase With Biological and Regenerative Potential. Orthop J Sports Med 2021; 9:2325967121990016. [PMID: 34250161 PMCID: PMC8239340 DOI: 10.1177/2325967121990016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Background The removal of all adherent muscle tissue from the hamstring graft during anterior cruciate ligament reconstruction (ACLR) is common practice. However, there is a paucity of research to justify this removal or evaluate its biological implications. Purpose/Hypothesis The purpose of this study was to (1) evaluate the histological characteristics of the myotendinous muscle tissue harvested from hamstring tendons, (2) compare the final diameter of the prepared graft before and after the removal of the remnant musculature, and (3) evaluate patients who were treated with and without preservation of the graft-adhered muscle. The hypothesis was that the adherent musculature of the graft would have cells that could contribute to graft incorporation and revascularization, assist in the proprioceptive capacity of the neoligament, and increase the graft's diameter. Study Design Cohort study; Level of evidence, 3. Methods We divided 84 patients into 2 groups: group 1 underwent ACLR using hamstring tendon autograft with adherent musculature, and group 2 underwent ACLR using hamstring tendon autograft stripped of its remnant muscle. All patients had minimum 2-year follow-up. The muscle harvested from the graft in group 2 was submitted for histological examination, and the graft diameter before and after muscle removal was compared. The Tegner activity scale and Lysholm scores were determined preoperatively and at 12 and 24 months postoperatively. Results There was a significant difference in graft diameter between groups. The evaluation of the graft diameter in group 2 showed a decrease of 11.52% after removal of muscle tissue from the tendon graft. Patients from group 1 had better Tegner and Lysholm scores (mean ± SD) after 12 months (Tegner, 8.03 vs 7 [P = .004]; Lysholm, 95.48 ± 1.2 vs 87.54 ± 3.21 [P = .002]) and better Lysholm scores after 24 months (95.76 ± 2.1 vs 89.32 ± 2.47; P = .002). The muscle tissue of the analyzed fragments presented a pattern with fibrous tissue beams, invaginating regularly and sequentially from the myotendinous junction into the muscles. Conclusion Preserving the muscle tissue on tendon grafts promoted a volumetric increase in the final autograft diameter and demonstrated biological and regenerative potential. Patients who underwent ACLR using the tendon with the muscle attached had better functional scores at 2-year follow-up as compared with patients treated using the tendon with the muscle removed.
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Affiliation(s)
| | | | | | | | - Moises Cohen
- Federal University of São Paulo, São Paulo, Brazil
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Takeuchi S, Rothrauff BB, Taguchi M, Kanto R, Onishi K, Fu FH. In situ cross-sectional area of the quadriceps tendon using preoperative magnetic resonance imaging significantly correlates with the intraoperative diameter of the quadriceps tendon autograft. Knee Surg Sports Traumatol Arthrosc 2021; 29:742-749. [PMID: 32333056 DOI: 10.1007/s00167-020-05993-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 04/07/2020] [Indexed: 01/22/2023]
Abstract
PURPOSE Preoperative assessment to determine the sizes of potential autografts is necessary for individualized anterior cruciate ligament reconstruction (ACLR). However, no study has investigated the prediction of the intraoperative diameter of the quadriceps tendon (QT) autograft based upon preoperative imaging. This study investigated the correlation between the intraoperative diameter of a QT autograft and in situ thickness or cross-sectional area (CSA) measured using preoperative MRI. METHODS Thirty-one knees of 31 patients (mean age 20.9 ± 5.0 years) who underwent individualized anatomic ACLR using all soft tissue QT autograft were included retrospectively. At 15 mm proximal to the superior pole of the patella, the maximum QT thickness was assessed in the sagittal plane and the CSA was assessed at the central 10 mm of the QT in the axial plane. The angle between the axial plane and a line perpendicular to the QT longitudinal axis was used to calculate an adjusted CSA using a cosine function. Intraoperatively, each QT autograft was harvested with 10 mm width and the diameter was measured using a graft sizing device. RESULTS Intra- and inter-observer reliabilities of all measurements using preoperative MRI were excellent (intra-class correlation coefficient, 0.833-0.970). Significant correlations were observed between the thickness, CSA, or adjusted CSA, and the intraoperative diameter (R = 0.434, 0.607, and 0.540, respectively; P < 0.05). CONCLUSIONS The CSA correlated most strongly with the QT autograft diameter. For individualized anatomic ACLR, measuring in situ CSA can be useful for preoperative planning of appropriate graft choices prior to surgery. LEVEL OF EVIDENCE III.
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Affiliation(s)
- Satoshi Takeuchi
- Department of Orthopaedic Surgery, University of Pittsburgh, Kaufman Medical Building, Suite 1011, 3941 Fifth Avenue, Pittsburgh, PA, 15203, USA
| | - Benjamin B Rothrauff
- Department of Orthopaedic Surgery, University of Pittsburgh, Kaufman Medical Building, Suite 1011, 3941 Fifth Avenue, Pittsburgh, PA, 15203, USA
| | - Masashi Taguchi
- Department of Orthopaedic Surgery, University of Pittsburgh, Kaufman Medical Building, Suite 1011, 3941 Fifth Avenue, Pittsburgh, PA, 15203, USA
| | - Ryo Kanto
- Department of Orthopaedic Surgery, University of Pittsburgh, Kaufman Medical Building, Suite 1011, 3941 Fifth Avenue, Pittsburgh, PA, 15203, USA
| | - Kentaro Onishi
- Department of Orthopaedic Surgery, University of Pittsburgh, Kaufman Medical Building, Suite 1011, 3941 Fifth Avenue, Pittsburgh, PA, 15203, USA
- Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, PA, USA
| | - Freddie H Fu
- Department of Orthopaedic Surgery, University of Pittsburgh, Kaufman Medical Building, Suite 1011, 3941 Fifth Avenue, Pittsburgh, PA, 15203, USA.
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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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Krishna L, Chan CX, Lokaiah L, Chinnasamy D, Goyal S, Wang M, Singh A. Five-Strand Versus Four-Strand Hamstring Autografts in Anterior Cruciate Ligament Reconstruction-A Prospective Randomized Controlled Study. Arthroscopy 2021; 37:579-585. [PMID: 32828934 DOI: 10.1016/j.arthro.2020.08.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 06/14/2020] [Accepted: 08/17/2020] [Indexed: 02/02/2023]
Abstract
PURPOSE To compare the clinical outcomes of the routine use of 5-strand hamstring grafts (where possible) with those of 4-strand grafts in primary anterior cruciate ligament (ACL) reconstruction. METHODS A total of 64 patients were enrolled in a prospective randomized controlled study comparing the use of 5-strand and 4-strand semitendinosus-gracilis autografts in single bundle ACL reconstruction (n = 32 in each group). Four participants in each group were lost to follow-up and were excluded from the outcome analysis. The outcomes of 28 patients in the 5-strand group and 28 patients in the 4-strand group were analyzed. The diameters of all grafts were measured intraoperatively. Patients were assessed postoperatively at 2 years with objective assessments (anterior knee laxity using the KT-2000 arthrometer, Lachman test, pivot-shift test, hop test) and patient-reported outcome scores (Lysholm knee score, Knee Injury and Osteoarthritis Outcome Score, International Knee Documentation Committee subjective knee score, SF-36 physical and mental components, Tegner activity scale). Postoperative graft ruptures were also noted. RESULTS There were improvements in all outcome measures postoperatively regardless of the number of graft strands. When we compared the study and control groups, there were no significant differences in all subjective and objective outcome measures except the Knee Injury and Osteoarthritis Outcome Score symptoms score (5-strand group 93.3 ± 9.2 vs 4-strand group 86.2 ± 14.7, P = .04). The KT-2000 side-to-side difference was 2.79 ± 2.11 mm in the 5-strand group and 2.54 ± 1.75 mm in the 4-strand group (P = .63). The 5-strand study group had 2 graft ruptures at 1 year, whereas the 4-strand control group had one partial graft rupture at 6 months. CONCLUSIONS At 2-year follow-up, the routine use of the 5-strand hamstring tendon autograft was not superior to that of the quadrupled or 4-strand graft in primary ACL reconstruction. LEVEL OF EVIDENCE Level I, prospective randomized controlled trial.
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Affiliation(s)
- Lingaraj Krishna
- Division of Sports Medicine and Surgery, Department of Orthopaedic Surgery, National University Hospital, National University Health System (NUHS), Singapore
| | - Chloe Xiaoyun Chan
- Division of Sports Medicine and Surgery, Department of Orthopaedic Surgery, National University Hospital, National University Health System (NUHS), Singapore.
| | - Lakshmipathi Lokaiah
- Department of Rehabilitation, National University Hospital, National University Health System (NUHS), Singapore
| | - Duraimurugan Chinnasamy
- Department of Rehabilitation, National University Hospital, National University Health System (NUHS), Singapore
| | - Saumitra Goyal
- Division of Sports Medicine and Surgery, Department of Orthopaedic Surgery, National University Hospital, National University Health System (NUHS), Singapore
| | - Mingchang Wang
- Division of Sports Medicine and Surgery, Department of Orthopaedic Surgery, National University Hospital, National University Health System (NUHS), Singapore
| | - Amritpal Singh
- Department of Orthopaedic Surgery, Ng Teng Fong General Hospital, Singapore
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Kumar R, Kumar S, Kumar A. Graft diameter as a predictor for functional outcome following arthroscopic anterior cruciate ligament reconstruction: A prospective study. JOURNAL OF ORTHOPAEDIC DISEASES AND TRAUMATOLOGY 2021. [DOI: 10.4103/jodp.jodp_9_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Rao AJ, Macknet DM, Stuhlman CR, Yeatts NC, Trofa DP, Odum SM, Saltzman BM, Fleischli JE. Allograft Augmentation of Hamstring Autograft in Anterior Cruciate Ligament Reconstruction Results in Equivalent Outcomes to Autograft Alone. Arthroscopy 2021; 37:173-182.e2. [PMID: 32679297 DOI: 10.1016/j.arthro.2020.07.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 07/03/2020] [Accepted: 07/03/2020] [Indexed: 02/02/2023]
Abstract
PURPOSE To examine allograft augmentation of undersized hamstring (HS) autograft tendons at the time of anterior cruciate ligament (ACL) reconstruction, compared with un-augmented autograft HS ACL reconstruction. METHODS Patients who underwent ACL reconstruction at our institution between 2005 and 2015 were reviewed. Inclusion criteria included patients who underwent (1) primary ACL reconstruction, (2) use of a hybrid HS autograft with allograft augmentation, and (3) had a minimum 2-year postoperative follow-up. Patients with revision ACL, multiligamentous injuries, all-epiphyseal fixation techniques, or additional procedures beyond chondroplasty or meniscal repair/debridement were excluded. Data collected included demographics, graft size, concomitant procedures, revision operation, revision ACL reconstruction, and patient-reported outcomes. RESULTS In total, 59 patients met criteria for inclusion into the hybrid group, and 80 patients were eligible for inclusion into the control group. The average age of the cohort was 22.9 (interquartile range Q1:17, Q3: 38.3), and 51.8% of the patients were female. Seven patients (11.9%) in the hybrid ACL group underwent revision ACL surgery versus 15 (18.8%) in the control group (P = .27). There was no difference in patient-reported outcomes between groups. CONCLUSIONS Augmenting an HS ACL autograft that is 8 mm or less with allograft tissue to increase the overall size of the ACL graft shows no difference in overall reoperation or revision of ACL failure. The hybrid autograft/allograft ACL reconstruction patients showed no clinically important difference between groups in patient-reported outcome measures. LEVEL OF EVIDENCE Level III, case-control comparative analysis.
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Affiliation(s)
- Allison J Rao
- OrthoCarolina Sports Medicine Center, Charlotte, North Carolina, U.S.A
| | - David M Macknet
- Department of Orthopaedic Surgery, Atrium Health, Charlotte, North Carolina, U.S.A.; Musculoskeletal Institute, Atrium Health, Charlotte, North Carolina, U.S.A
| | - Casey R Stuhlman
- OrthoCarolina Sports Medicine Center, Charlotte, North Carolina, U.S.A
| | - Nicholas C Yeatts
- OrthoCarolina Sports Medicine Center, Charlotte, North Carolina, U.S.A.; Musculoskeletal Institute, Atrium Health, Charlotte, North Carolina, U.S.A
| | - David P Trofa
- Department of Orthopaedics, Columbia University, New York, New York, U.S.A
| | - Susan M Odum
- Musculoskeletal Institute, Atrium Health, Charlotte, North Carolina, U.S.A.; OrthoCarolina Research Institute, Charlotte, North Carolina, U.S.A
| | - Bryan M Saltzman
- OrthoCarolina Sports Medicine Center, Charlotte, North Carolina, U.S.A.; Musculoskeletal Institute, Atrium Health, Charlotte, North Carolina, U.S.A..
| | - James E Fleischli
- OrthoCarolina Sports Medicine Center, Charlotte, North Carolina, U.S.A.; Department of Orthopaedic Surgery, Atrium Health, Charlotte, North Carolina, U.S.A.; Musculoskeletal Institute, Atrium Health, Charlotte, North Carolina, U.S.A
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Attia AK, Nasef H, ElSweify KH, Adam MA, AbuShaaban F, Arun K. Failure Rates of 5-Strand and 6-Strand vs Quadrupled Hamstring Autograft ACL Reconstruction: A Comparative Study of 413 Patients With a Minimum 2-Year Follow-up. Orthop J Sports Med 2020; 8:2325967120946326. [PMID: 32923507 PMCID: PMC7453462 DOI: 10.1177/2325967120946326] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 04/14/2020] [Indexed: 11/24/2022] Open
Abstract
Background: Anterior cruciate ligament reconstruction (ACLR) with hamstring autograft has gained popularity. However, an unpredictably small graft diameter has been a drawback of this technique. Smaller graft diameter has been associated with increased risk of revision, and increasing the number of strands has been reported as a successful technique to increase the graft diameter. Purpose: To compare failure rates of 5-strand (5HS) and 6-strand (6HS) hamstring autograft compared with conventional 4-strand (4HS) hamstring autograft. We describe the technique in detail, supplemented by photographs and illustrations, to provide a reproducible technique to avoid the variable and often insufficient 4HS graft diameter reported in the literature. Study Design: Cohort study; Level of evidence, 3. Methods: We retrospectively reviewed prospectively collected data of all primary hamstring autograft ACLRs performed at our institution with a minimum 2-year follow-up and 8.0-mm graft diameter. A total of 413 consecutive knees met the study inclusion and exclusion criteria. The study population was divided into 5HS and 6HS groups as well as a 4HS control group. The primary outcome was failure of ACLR, defined as persistent or recurrent instability and/or revision ACLR. Results: The analysis included 224, 156, and 33 knees in the 5HS, 6HS, and 4HS groups, respectively. The overall ACLR failure rate in this study was 11 cases (8%): 5 cases for 5HS, 3 cases for 6HS, and 3 cases for 4HS. No statistically significant differences were found among groups (P = .06). The mean graft diameter was 9 mm, and the mean follow-up was 44.27 months. Conclusion: The 5HS and 6HS constructs have similar failure rates to the conventional 4HS construct of 8.0-mm diameter and are therefore safe and reliable to increase the diameter of relatively smaller hamstring autografts. We strongly recommend using this technique when the length of the tendons permits to avoid failures reportedly associated with inadequate graft size.
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Affiliation(s)
| | - Hazem Nasef
- Department of Orthopedic Surgery, Hamad General Hospital, Doha, Qatar
| | | | - Mohammed A Adam
- Department of Orthopedic Surgery, Hamad General Hospital, Doha, Qatar
| | - Faris AbuShaaban
- Department of Orthopedic Surgery, AlKhor Hospital, AlKhor, Qatar
| | - Kariyal Arun
- Department of Orthopedic Surgery, AlKhor Hospital, AlKhor, Qatar
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Thwin L, Ho SW, Tan TJL, Lim WY, Lee KT. Pre-operative MRI measurements versus anthropometric data: Which is more accurate in predicting 4-stranded hamstring graft size in anterior cruciate ligament reconstruction? ASIA-PACIFIC JOURNAL OF SPORT MEDICINE ARTHROSCOPY REHABILITATION AND TECHNOLOGY 2020; 22:5-9. [PMID: 32642442 PMCID: PMC7321968 DOI: 10.1016/j.asmart.2020.05.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 05/18/2020] [Accepted: 05/25/2020] [Indexed: 01/12/2023]
Abstract
Background/objective Graft diameter has been shown to play an important role in anterior cruciate ligament (ACL) autograft failure rates. The roles of pre-operative MRI measurement of graft size and anthropometric data have been studied in the prediction of hamstring graft size. Pre-operative knowledge of hamstring graft diameter allows surgeons to perform better surgical planning and provides an opportunity to discuss with patients on alternative graft options such as allografts should the need arises. The purpose of this study was to compare the accuracy of pre-operative anthropometric data and MRI measurements in the prediction of 4-stranded hamstring autograft size in anterior cruciate ligament reconstruction. Method This was a cohort study involving 141 subjects (115 males and 26 females) who underwent a single bundle ACL reconstruction utilising a 4-stranded hamstring graft by a single surgeon from 2008 to 2012. Pre-operatively, the height, weight, body mass index (BMI), age, gender and smoking status was recorded. The MRI scans used for diagnosis were utilized to measure the gracilis (GT) and semi-tendinosus (ST) cross sectional area (CSA). Result We found the strongest correlation between Combined (ST + GT) CSA and intra-operative graft size (r = 0.596, p < 0.001). This was followed by ST CSA (r = 0.570,p < 0.001), Body surface area (r = 0.507,p < 0.001), and GT CSA (r = 0.460,p < 0.001). No significant correlation was found between 2 anthropometric data (Age and BMI). There was also no significant difference between different strengths of MRIs (1.5T vs 3.0T) in determining the intra-operative graft size (p = 0.438). Conclusion We conclude that pre-operative MRI is superior to anthropometric variables in predicting the size of 4-stranded hamstring autografts used in ACL reconstruction.
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Affiliation(s)
- Lynn Thwin
- Department of Orthopaedic Surgery, Tan Tock Seng Hospital, Singapore
| | - Sean Wl Ho
- Department of Orthopaedic Surgery, Tan Tock Seng Hospital, Singapore
| | | | - Wei Yang Lim
- Department of Diagnostic Radiology, Tan Tock Seng Hospital, Singapore
| | - Keng Thiam Lee
- Department of Orthopaedic Surgery, Tan Tock Seng Hospital, Singapore
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Smith PA, Cook CS, Bley JA. All-Inside Quadrupled Semitendinosus Autograft Shows Stability Equivalent to Patellar Tendon Autograft Anterior Cruciate Ligament Reconstruction: Randomized Controlled Trial in Athletes 24 Years or Younger. Arthroscopy 2020; 36:1629-1646. [PMID: 32059954 DOI: 10.1016/j.arthro.2020.01.048] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 12/20/2019] [Accepted: 01/18/2020] [Indexed: 02/02/2023]
Abstract
PURPOSE To compare clinical outcomes of knee anterior cruciate ligament (ACL) autograft reconstruction using all-inside quadrupled semitendinosus (AIST) versus bone-patellar tendon-bone (BPTB) in a high-risk athletic population 24 years or younger. METHODS Skeletally mature candidates younger than 24 years old with an ACL tear were randomized into either the AIST (n = 32) or BPTB (n = 32) group and were followed for 2 years. Magnetic resonance imaging scans were obtained at 1-year follow-up, and radiographs were obtained at 2-year follow-up. All surgeries were performed by a single surgeon using an anteromedial portal to establish the femoral tunnel. The primary outcome measure was KT-1000 stability testing. Secondary outcome measures included International Knee Documentation Committee (IKDC) Knee Evaluation Form, IKDC Subjective Form, Knee Injury and Osteoarthritis Outcome Score, Marx Activity Scale, visual analog pain scale, and SF-12 (Mental and Physical). RESULTS At 2-year follow-up, no statistical difference existed with KT-1000-measured side-to-side laxity between AIST (0.3 ± 0.7 mm, 95% confidence interval 0.0-1.0 mm) and BPTB (0.0 ± 0.8 mm, confidence interval CI -0.3 to 1.1 mm) (P = .197). In addition, no statistical differences between the groups were found for IKDC Subjective Form, Knee Injury and Osteoarthritis Outcome Score, Marx, SF-12 Mental, SF-12 Physical, or with regards to imaging findings. Patients with BPTB reported significantly greater postoperative pain scores at days 2 (P = .049), 3 (P = .004), and 7 (P = .015) and had significantly greater kneeling pain at 2 years (P < .019). A return to sport questionnaire at 2 years revealed no significant difference between the groups for returning to preoperative level of sport activity (83% AIST, 74% BPTB; P = .415). Two graft retears (7%; P = .222) occurred in the AIST group. Three patients in the BPTB group experienced ACL tears in the contralateral knee (9%; P = .239). CONCLUSIONS ACL reconstruction with an all-inside quadrupled semitendinosus autograft construct is equivalent to patellar BPTB autograft based on KT-1000 stability testing in athletes 24 years or younger. LEVEL OF EVIDENCE randomized controlled trial with 92% 2-year follow-up, Level I.
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Affiliation(s)
- Patrick A Smith
- Department of Orthopaedic Surgery, University of Missouri, Columbia, Missouri, U.S.A.; Columbia Orthopaedic Group, Columbia, Missouri, U.S.A..
| | - Corey S Cook
- Columbia Orthopaedic Group, Columbia, Missouri, U.S.A
| | - Jordan A Bley
- Columbia Orthopaedic Group, Columbia, Missouri, U.S.A
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