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Zhou Y, Li L, Chen R, Gong M. Double-bundle versus single-bundle anterior cruciate ligament reconstruction in preventing the progression of osteoarthritis: A protocol for systematic review and meta-analysis of randomized controlled trials. Medicine (Baltimore) 2022; 101:e31101. [PMID: 36626441 PMCID: PMC9750529 DOI: 10.1097/md.0000000000031101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND The knee has a high incidence of osteoarthritis (OA) following the anterior cruciate ligament (ACL) injury, which was reduced by ACL reconstruction including double-bundle (DB) techniques and single-bundle (SB) techniques. However, the effectiveness of preventing the progression of OA after the ACL reconstruction using DB and SB techniques is controversial. METHODS This meta-analysis was performed following the preferred reporting items for systematic reviews and meta-analyses guidelines. The databases, including PubMed, Embase, and Cochrane Library, were searched. Randomized controlled trials comparing DB with SB ACL reconstruction and reporting clinical outcomes of radiological OA were included. Quality of the included studies was assessed using the Cochrane Collaboration's risk of bias tool. The outcome was analyzed using the risk ratio (RR) and its corresponding 95% confidence interval (CI). RESULTS Ten Randomized controlled trials studies were included in this meta-analysis (accounting 1062 knees: 475 SB and 587 DB). The rate of radiological OA after the ACL reconstruction was 39% in SB group and 34% in DB group. The results of meta-analysis showed no difference in the occurrence of radiological OA between DB group and in SB group (RR, 1.05; 95% CI, 0.85-1.30, P = .63), including subgroup of radiological scores of OA (subgroup of Minimal OA: RR, 0.95; 95% CI, 0.61-1.48; P = .82; subgroup of Notable OA: RR, 1.16; 95% CI, 0.75-1.78; P = .51), subgroup of follow-up time in 5 years and more than 5 years (RR, 0.98; 95% CI, 0.80-1.20; P = .85), and subgroup of autograft graft for ACL (RR, 0.97; 95% CI, 0.79-1.19; P = .77). However, the DB group had less incidences of knee OA than the SB group in subgroup of less than 5 years (RR, 1.48; 95% CI, 1.13-1.92; P = .004) and subgroup of allograft type (RR, 1.42; 95% CI, 1.06-1.91; P = .02). CONCLUSION Overall, this meta-analysis showed that the DB technique was no more effective in preventing the progression of OA than the SB technique in ACL reconstruction at midterm follow-up.
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Affiliation(s)
- Yun Zhou
- People’s Hospital of Leshan, Leshan, Sichuan, China
| | - Linji Li
- Department of Anesthesiology, Nanchong Central Hospital, The Second Clinical Medical College, North Sichuan Medical College, Nanchong, China
| | - Ran Chen
- Department of Orthopaedics, West China Hospital, Sichuan University, Chengdu, China
| | - Min Gong
- Department of Orthopaedic Surgery, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
- * Correspondence: Min Gong, Department of Orthopaedics, the Hospital of Chengdu University of Traditional Chinese Medicine, No. 39 Shi’er Qiao Rd, Chengdu, Sichuan 610075, China (e-mail: )
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2
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Ng FDJ, Lie DTT, Yew A. Relooking at double-bundle versus single-bundle anterior cruciate ligament reconstruction: A biomechanical model to evaluate which can confer better rotatory stability. Clin Biomech (Bristol, Avon) 2022; 99:105758. [PMID: 36113193 DOI: 10.1016/j.clinbiomech.2022.105758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 05/04/2022] [Accepted: 08/30/2022] [Indexed: 02/07/2023]
Abstract
BACKGROUND To treat anterior cruciate ligament (ACL) injuries, double-bundle ACL reconstruction has been proposed as a more anatomical approach relative to single-bundle reconstruction. However, controversy remains over which technique is superior in addressing knee instability, particularly rotational laxity. We hypothesize that double-bundle reconstruction better restores rotational knee laxity, while both methods are similar in restoring anterior knee laxity, to intact knee levels. METHODS A controlled laboratory study. Eight cadaveric knees were tested accordingly: (1) static anterior laxity testing under 150 N-anterior tibial loading at 20°, 60° and 90° knee flexion using a material testing machine, followed by (2) dynamic simulated pivot-shift with knee-specific loading involving iliotibial band forces, valgus and internal rotation torques, while the knee was brought from extension to 90° flexion on a 6°-of-freedom custom-designed rig. Tibiofemoral kinematics were recorded using an electromagnetic tracking system for the ACL-intact, ACL-deficient, single-bundle and double-bundle ACL-reconstructed knee conditions. FINDINGS Double-bundle reconstruction reduced internal rotation under pivot-shift to levels not significantly different from ACL-intact conditions (P > .173), unlike single-bundle that remained significantly higher at 10-40° flexion (P < .05). For anterior laxity, there was no significant difference between double-bundle, single-bundle, and ACL-intact conditions under static testing (P > .175) or pivot-shift (P = .219). The maximum extent of knee envelope laxity was significantly reduced for double-bundle relative to single-bundle, particularly for the rotatory component (P = .012). INTERPRETATION Double-bundle was biomechanically superior to single-bundle in addressing envelope of rotation, while both techniques restored anterior knee laxity to ACL-intact levels.
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Affiliation(s)
| | - Denny Tjiauw Tjoen Lie
- Department of Orthopaedic Surgery, Singapore General Hospital, Outram Road, 169608, Singapore.
| | - Andy Yew
- Division of Musculoskeletal Sciences, Singapore General Hospital, Outram Road, 169608, Singapore.
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3
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Nakamura T, Marshall BD, Price TM, Mao Y, Linde MA, Koga H, Smolinski P, Fu FH. Arthroscopic Centralization for Lateral Meniscal Injuries Reduces Laxity in the Anterior Cruciate Ligament-Reconstructed Knee. Am J Sports Med 2021; 49:3528-3533. [PMID: 34524037 DOI: 10.1177/03635465211041747] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND A lateral meniscal (LM) disorder is one factor that causes rotational laxity after anterior cruciate ligament (ACL) reconstruction (ACLR). There are different types of irreparable meniscal disorders, one of which is a massive meniscal defect. HYPOTHESIS/PURPOSE The purpose of this study was to evaluate the kinematic effects of arthroscopic centralization on an irreparable LM defect. The hypothesis was that arthroscopic centralization for an irreparable LM defect with concomitant ACLR would improve knee rotational stability. STUDY DESIGN Controlled laboratory study. METHODS A total of 14 fresh-frozen human cadaveric knees were tested in 4 states: (1) intact ACL and intact lateral meniscus, (2) reconstructed ACL and intact lateral meniscus, (3) reconstructed ACL and lateral meniscus defect, and (4) reconstructed ACL and centralized lateral meniscus. Anatomic ACLR was performed using an 8 mm-diameter hamstring tendon graft. An LM defect (20% of the anteroposterior length) was created arthroscopically, and arthroscopic centralization was performed. Kinematics were analyzed using a 6 degrees of freedom robotic system under 4 knee loads: (1) an 89.0-N anterior tibial load, (2) a 5.0-N·m external rotation tibial torque, (3) a 5.0-N·m internal rotation tibial torque, and (4) a simulated pivot-shift load with a combined 7.0-N·m valgus and 5.0-N·m internal rotation tibial torque. RESULTS LM centralization reduced anterior tibial translation similar to that of the ACLR intact LM state under anterior tibial loading (~2 mm at 30° of flexion) and showed 40% to 100% of tibial displacement in the 4 knee states under simulated pivot-shift loading. The procedure overconstrained the knee under internal rotation tibial torque and simulated pivot-shift loading. CONCLUSION Arthroscopic centralization reduced knee laxity after ACLR for a massive LM defect in a cadaveric model. CLINICAL RELEVANCE In cases involving irreparable LM injuries during ACLR, consideration should be given to arthroscopic centralization for reducing knee laxity. However, the procedure may overconstrain the knee in certain motions.
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Affiliation(s)
- Tomomasa Nakamura
- Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Department of Joint Surgery and Sports Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Brandon D Marshall
- Department of Mechanical Engineering and Materials Science, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Taylor M Price
- Department of Mechanical Engineering and Materials Science, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Yongtao Mao
- Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Monica A Linde
- Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Hideyuki Koga
- Department of Joint Surgery and Sports Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Patrick Smolinski
- Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Department of Mechanical Engineering and Materials Science, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Freddie H Fu
- Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Department of Mechanical Engineering and Materials Science, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
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4
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Sasaki Y, Fujii M, Araki D, Marshall BD, Linde MA, Smolinski P, Fu FH. Effect of Percentage of Femoral Anterior Cruciate Ligament Insertion Site Reconstructed With Hamstring Tendon on Knee Kinematics and Graft Force. Am J Sports Med 2021; 49:1279-1285. [PMID: 33656943 DOI: 10.1177/0363546521995199] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Previous studies have stated that closely matching the size of the anterior cruciate ligament (ACL) insertion site footprint is important for biomechanical function and clinical stability after ACL reconstruction. However, the ACL varies widely regarding the area of femoral insertion, tibial insertion, and midsubstance of ACL, and reconstructing the insertion site area with a uniform diameter graft can result in a cross-sectional area that is greater than that of the midsubstance of the native ACL. Therefore, understanding the effect of relative graft size in ACL reconstruction on knee biomechanics is important for surgical planning. PURPOSE To assess how the percentage of femoral insertion site affects knee biomechanics in single- and double-bundle ACL reconstruction. STUDY DESIGN Controlled laboratory study. METHODS A total of 14 human cadaveric knees were scanned with magnetic resonance imaging and tested using a robotic system under an anterior tibial load and a combined rotational load. In total, 7 knee states were evaluated: intact ACL; deficient ACL; single-bundle ACL reconstruction with approximate graft sizes 25% (small), 50% (medium), and 75% (large) of the femoral insertion site; and double-bundle reconstruction of approximately 50% (medium) and 75% (large) of the femoral insertion site, based on the ratio of the cross-sectional area of the graft to the area of the femoral ACL insertion site determined by magnetic resonance imaging. RESULTS Anterior tibial translation was not significantly larger than the intact state in single-bundle and double-bundle medium graft reconstructions (P > .05) and was significantly greater in the single-bundle small graft reconstruction (P < .05). Anterior knee translation in single-bundle medium graft and large graft reconstructions was not statistically different (P > .05). In contrast, the anterior tibial translation for double-bundle large graft reconstruction was significantly smaller than for double-bundle medium graft reconstruction at low flexion angles (P < .05). The single-bundle small graft force was significantly different from the intact ACL in situ force (P < .05). The graft force with double-bundle large reconstruction was significantly greater than that with the double-bundle medium reconstruction (P < .05) but was not significantly different from that of the intact ACL (P > .05). CONCLUSION Knee biomechanics with a single-bundle small graft tended to be significantly different from those of the intact knee. In the kinematic and kinetic data for the single- and double-bundle medium graft reconstruction, only the anterior translation at full extension for the single-bundle reconstruction was significantly different (lower) from that of intact knee. This was a time zero study. CLINICAL RELEVANCE This study can provide surgeons with guidance in selecting the graft size for ACL reconstruction.
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Affiliation(s)
- Yusuke Sasaki
- Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Masataka Fujii
- Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Daisuke Araki
- Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Brandon D Marshall
- Department of Mechanical Engineering and Material Science, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Monica A Linde
- Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Patrick Smolinski
- Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Department of Mechanical Engineering and Material Science, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Freddie H Fu
- Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Department of Mechanical Engineering and Material Science, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
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Okazaki Y, Furumatsu T, Hiranaka T, Kintaka K, Kodama Y, Kamatsuki Y, Ozaki T. Steep posterior slope of the medial tibial plateau is associated with ramp lesions of the medial meniscus and a concomitant anterior cruciate ligament injury. ASIA-PACIFIC JOURNAL OF SPORT MEDICINE ARTHROSCOPY REHABILITATION AND TECHNOLOGY 2021; 24:23-28. [PMID: 33680859 PMCID: PMC7896126 DOI: 10.1016/j.asmart.2021.01.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 01/13/2021] [Accepted: 01/27/2021] [Indexed: 11/28/2022]
Abstract
Background Medial meniscus (MM) tears are associated with both acute and chronic anterior cruciate ligament (ACL) insufficiency and can lead to degenerative changes in the knee. ACL reconstruction (ACLR) combined with the meniscal repair was reported to result in decreased anterior knee joint laxity with evidence of improved patient-reported outcomes in the long term. However, a subtle tear of the MM posterior segment, also known as a ramp lesion, is difficult to detect on conventional magnetic resonance imaging (MRI) and is frequently missed in ACL-deficient knees. However, there are few studies about the associations between bone geometry and ramp lesion of the MM. This study aimed to compare sagittal medial tibial slope (MTS), medial tibial plateau depth (MTPD), and coronal tibial slope (CTS) between ACL-injured knees with and without ramp lesion of the MM. We hypothesised that patients with ramp lesion of the MM and a concomitant ACL injury have a steeper MTS and shallower MTPD than those without ramp lesion of the MM. Methods Twenty-seven patients who underwent ACLR (group A), and 15 patients with combined MM repair (group AM) were included in the study. Anterior tibial translation (ATT) was measured under general anaesthesia just before surgery using a knee arthrometer. MRI was performed in the 10°-knee-flexed position. The MTS and MTPD were measured on sagittal view, and the CTS was measured on coronal view. These parameters were compared between the groups. Differences in MRI measurements or patient demographics between the groups were evaluated using the Mann-Whitney U test. Results No significant difference was observed in demographic data and post-operative side-to-side difference in ATT between both groups. Pre-operative ATT was significantly higher in group AM than in group A (P < 0.05), whereas post-operative ATT was similar in both groups. Further, Pre-operative ATT was significantly higher in patients with MTS ≥5.0° than in those with MTS <5.0° (P < 0.05). In groups A and AM, the MTS were 3.6° ± 1.8° and 6.2° ± 2.9°, the MTPD were 2.0 ± 0.5 mm and 2.1 ± 0.6 mm, and the CTS were 2.5° ± 1.8° and 2.4° ± 1.6°, respectively. Patients in group AM had a significantly steeper MTS compared to those in group A (P < 0.01), whereas MTPD and CTS were nearly the same in both groups. When the MTS cut-off value was set at 5.0°, the sensitivity and specificity for ACL injury with concomitant ramp lesion of the MM were 0.73 and 0.76, respectively. Conclusion A steep posterior slope of the medial tibial plateau is a risk factor for ramp lesion of the MM associated with an ACL injury. Especially in patients with MTS ≥5.0°, an occult MM ramp lesion should be strongly suspected, and surgeons should prepare for MM repair in combination with ACLR.
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Affiliation(s)
- Yuki Okazaki
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikatacho, Kitaku, Okayama, 700-8558, Japan.,Department of Orthopaedic Surgery, Kosei Hospital, 3-8-35 Kosei-cho, Kita-ku, Okayama, 700-0985, Japan
| | - Takayuki Furumatsu
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikatacho, Kitaku, Okayama, 700-8558, Japan
| | - Takaaki Hiranaka
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikatacho, Kitaku, Okayama, 700-8558, Japan
| | - Keisuke Kintaka
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikatacho, Kitaku, Okayama, 700-8558, Japan
| | - Yuya Kodama
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikatacho, Kitaku, Okayama, 700-8558, Japan.,Department of Orthopaedic Surgery, University of Pittsburgh, 4200 Fifth Avenue, Pittsburgh, PA, 15260, USA
| | - Yusuke Kamatsuki
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikatacho, Kitaku, Okayama, 700-8558, Japan
| | - Toshifumi Ozaki
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikatacho, Kitaku, Okayama, 700-8558, Japan
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6
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Degree of Anterolateral Ligament Injury Impacts Outcomes After Double-Bundle Anterior Cruciate Ligament Reconstruction. Arthroscopy 2021; 37:222-230. [PMID: 32949631 DOI: 10.1016/j.arthro.2020.09.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Revised: 08/31/2020] [Accepted: 09/01/2020] [Indexed: 02/02/2023]
Abstract
PURPOSE To evaluate the effect of anterolateral ligament (ALL) injury identified on preoperative magnetic resonance imaging (MRI) on postoperative outcomes after double-bundle (DB) anterior cruciate ligament reconstruction (ACLR). METHODS For this retrospective study, the inclusion criteria were patients who were at least 3 years out of DB ACLR. Exclusion criteria included a delay in MRI over 4 weeks, delay in surgery over 6 months, single-bundle ACLR, and revision surgery. Enrolled patients were divided into 2 groups according to the ALL injury grade in preoperative MRI by a musculoskeletal radiologist who was blinded to the perioperative findings (the high-grade group with complete or nearly complete tear: n = 53 and the low-grade group with intact ALL or partial tear: n = 33). Knee laxity, clinical outcomes using the International Knee Documentation Committee (IKDC) examination form, and revision rates were compared at the last follow-up (8.1 ± 2.2 years). An independent t test was applied to compare continuous variables, and χ2 or Fisher exact test was used to compare the nominal variables. RESULTS The anterior translation was 3.2 ± 1.9 mm in the high-grade group and 1.6 ± 1.0 mm in the low-grade group (P < .001). The high-grade group showed 18 cases with a pivot-shift grade of 2 or 3 (40.0%); however, the low-grade group showed only 1 case with a pivot-shift grade 2 or 3 (3.0%) (P = .002). The high-grade group also showed inferior outcomes in the IKDC objective grade (grade A: 49.0%; grade B: 17.0%; grade C: 30.2%; grade D: 3.8% vs grade A: 90.9%; grade B: 6.1%; grade C: 3.0%; grade D: 0%, P = .001) and IKDC subjective score (87.5 ± 9.9 vs 93.9 ± 5.3, P < .001). In addition, the high-grade group showed a greater revision rate (11.3% vs 0%, P = .045). CONCLUSIONS DB ACLR for patients with high-grade ALL injury resulted in increased knee laxity, worse clinical outcomes, and higher revision rate compared to patients with low-grade ALL injury. LEVEL OF EVIDENCE Level III, retrospective comparative study.
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7
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Diermeier T, Tisherman R, Hughes J, Tulman M, Baum Coffey E, Fink C, Lynch A, Fu FH, Musahl V. Quadriceps tendon anterior cruciate ligament reconstruction. Knee Surg Sports Traumatol Arthrosc 2020; 28:2644-2656. [PMID: 32072203 DOI: 10.1007/s00167-020-05902-z] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 02/03/2020] [Indexed: 12/17/2022]
Abstract
Quadriceps tendon is a promising alternative graft option for anterior cruciate ligament (ACL) reconstruction, which can be harvested with or without a bone block as well as a full or partial thickness graft. Therefore, quadriceps tendon graft could be used in primary and revision ACL reconstruction based on the requirements (tunnel size, tunnel position, etc.). The all soft tissue, partial thickness quadriceps tendon graft in detail and pitfalls of the harvest are described in the present review. After quadriceps tendon harvest, especially in soccer players, who need a strong quadriceps to strike a ball with power, the postoperative rehabilitation may need to be adapted. LEVEL OF EVIDENCE: V.
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Affiliation(s)
- Theresa Diermeier
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, UPMC Rooney Sports Complex, 3200 South Water Street, Pittsburgh, PA, 15203, USA.,Department of Orthopaedic Sport Medicine, Technical University Munich, Munich, Germany
| | - Rob Tisherman
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, UPMC Rooney Sports Complex, 3200 South Water Street, Pittsburgh, PA, 15203, USA.,Department of Orthopaedic Sport Medicine, Technical University Munich, Munich, Germany
| | - Jonathan Hughes
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, UPMC Rooney Sports Complex, 3200 South Water Street, Pittsburgh, PA, 15203, USA
| | - Michael Tulman
- Department of Physical Therapy, University of Pittsburgh, Pittsburgh, PA, USA
| | | | - Christian Fink
- Gelenkpunkt-Sports and Joint Surgery, Innsbruck, Austria.,Research Unit for Orthopedic Sports Medicine and Injury Prevention, UMIT Hall, Hall, Austria
| | - Andrew Lynch
- Department of Physical Therapy, University of Pittsburgh, Pittsburgh, PA, USA.,UPMC Centers for Rehab Services, Pittsburgh, PA, USA
| | - Freddie H Fu
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, UPMC Rooney Sports Complex, 3200 South Water Street, Pittsburgh, PA, 15203, USA
| | - Volker Musahl
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, UPMC Rooney Sports Complex, 3200 South Water Street, Pittsburgh, PA, 15203, USA.
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8
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Hoshikawa A, Hiraoka H, Monobe Y, Shiraki K, Sasaki Y, Nakamura H, Saita K, Sakai H. Midterm Clinical Results After All-Epiphyseal Double-Bundle Reconstruction of the Anterior Cruciate Ligament in Children With Open Physes. Orthop J Sports Med 2020; 8:2325967120910083. [PMID: 32270014 PMCID: PMC7093688 DOI: 10.1177/2325967120910083] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Accepted: 12/17/2019] [Indexed: 11/22/2022] Open
Affiliation(s)
- Atsuto Hoshikawa
- Department of Orthopaedic Surgery, Saitama Medical Center, Saitama
Medical University, Saitama, Japan
- Atsuto Hoshikawa, MD, Department of Orthopaedic Surgery, Saitama
Medical Center, Saitama Medical University, Kamoda 1981, Kawagoe-shi, Saitama
350-8550, Japan ()
| | - Hisatada Hiraoka
- Department of Orthopaedic Surgery, Tokyo Teishin Hospital, Tokyo,
Japan
| | - Yoshirou Monobe
- Department of Orthopaedic Surgery, Yokohama Rosai Hospital,
Yokohama, Kanagawa, Japan
| | - Katsuhiko Shiraki
- Department of Orthopaedic Surgery, Wakaba Hospital, Sakado-shi,
Saitama, Japan
| | - Yuuki Sasaki
- Department of Orthopaedic Surgery, Misu Clinic, Kasukabe-shi,
Saitama, Japan
| | - Haruhiko Nakamura
- Department of Orthopaedic Surgery, Saitama Medical Center, Saitama
Medical University, Saitama, Japan
| | - Kazuo Saita
- Department of Orthopaedic Surgery, Saitama Medical Center, Saitama
Medical University, Saitama, Japan
| | - Hiroya Sakai
- Center for University-wide Education, Saitama Prefectural
University, Koshigaya-shi, Saitama, Japan
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9
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Oh JY, Kim KT, Park YJ, Won HC, Yoo JI, Moon DK, Cho SH, Hwang SC. Biomechanical comparison of single-bundle versus double-bundle anterior cruciate ligament reconstruction: a meta-analysis. Knee Surg Relat Res 2020; 32:14. [PMID: 32660562 PMCID: PMC7219200 DOI: 10.1186/s43019-020-00033-8] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Accepted: 02/18/2020] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Of the many issues regarding surgical techniques related to anterior cruciate ligament reconstruction (ACLR), single-bundle (SB) or double-bundle (DB) ACLR is one of the most debated topics. However, it is unclear which of the techniques yields better outcomes after ACLR for ACL injury. The purpose of this meta-analysis was to compare the benefits of SB versus DB ACLR in terms of biomechanical outcomes. METHODS The electronic databases MEDLINE, Embase, the Cochrane Central Register of Controlled Trials, Web of Science, and Scopus were searched for relevant articles comparing the outcomes of SB-ACLR versus DB-ACLR that were published until November 2019. RESULTS Seventeen biomechanical studies were included. The anterior laxity measured using the anterior drawer test showed significantly better results in DB-ACLR when compared with SB-ACLR. In addition, outcomes of the anterior tibial translation test under a simulated pivot shift presented with better results at low flexion and 30° in DB-ACLR, compared with SB-ACLR. However, there were no significant biomechanical differences between the groups in internal rotation. CONCLUSIONS The present study demonstrated that both techniques for ACLR are associated with restoration of normal knee kinematics. DB-ACLR is superior to SB-ACLR in terms of restoration of anteroposterior stability. However, which technique yields better improvement in internal rotation laxity, and internal rotation laxity under a simulated pivot shift at a specific angle, remains unclear. LEVEL OF EVIDENCE This is a level II meta-analysis.
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Affiliation(s)
- Jin-Young Oh
- Department of Orthopaedic Surgery, Gyeongsang National University School of Medicine and Gyeongsang National University Hospital, 15, Jinju-daero 816 beon-gil, Jinju-si, Gyeongsangnam-do, Republic of Korea, 660-751
| | - Kun-Tae Kim
- Department of Orthopaedic Surgery, Gyeongsang National University School of Medicine and Gyeongsang National University Hospital, 15, Jinju-daero 816 beon-gil, Jinju-si, Gyeongsangnam-do, Republic of Korea, 660-751
| | - Young-Jin Park
- Department of Orthopaedic Surgery, Gyeongsang National University School of Medicine and Gyeongsang National University Hospital, 15, Jinju-daero 816 beon-gil, Jinju-si, Gyeongsangnam-do, Republic of Korea, 660-751
| | - Hee-Chan Won
- Department of Orthopaedic Surgery, Gyeongsang National University School of Medicine and Gyeongsang National University Hospital, 15, Jinju-daero 816 beon-gil, Jinju-si, Gyeongsangnam-do, Republic of Korea, 660-751
| | - Jun-Il Yoo
- Department of Orthopaedic Surgery, Gyeongsang National University School of Medicine and Gyeongsang National University Hospital, 15, Jinju-daero 816 beon-gil, Jinju-si, Gyeongsangnam-do, Republic of Korea, 660-751
| | - Dong-Kyu Moon
- Department of Orthopaedic Surgery, Gyeongsang National University School of Medicine and Gyeongsang National University Hospital, 15, Jinju-daero 816 beon-gil, Jinju-si, Gyeongsangnam-do, Republic of Korea, 660-751
| | - Sung-Hee Cho
- Department of Orthopaedic Surgery, Gyeongsang National University School of Medicine and Gyeongsang National University Hospital, 15, Jinju-daero 816 beon-gil, Jinju-si, Gyeongsangnam-do, Republic of Korea, 660-751
| | - Sun-Chul Hwang
- Department of Orthopaedic Surgery, Gyeongsang National University School of Medicine and Gyeongsang National University Hospital, 15, Jinju-daero 816 beon-gil, Jinju-si, Gyeongsangnam-do, Republic of Korea, 660-751.
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Urchek R, Karas S. Biomechanical Comparison of Quadriceps and 6-Strand Hamstring Tendon Grafts in Anterior Cruciate Ligament Reconstruction. Orthop J Sports Med 2019; 7:2325967119879113. [PMID: 31667197 PMCID: PMC6801897 DOI: 10.1177/2325967119879113] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Background: The quadriceps tendon is becoming a popular graft option for anterior
cruciate ligament (ACL) reconstruction. Few studies have examined the
biomechanics of the quadriceps tendon compared with more commonly used graft
choices. Due to the risk associated with small-diameter hamstring tendon
grafts, various modifications of hamstring tendon preparation techniques
have been described—specifically, a tripled, 6-strand hamstring tendon
construct. This is the first study to directly compare the biomechanical
properties of quadriceps tendon and hamstring tendon grafts. Purpose/Hypothesis: The purpose of this study was to quantify the biomechanical properties of the
quadriceps tendon and 6-strand hamstring tendon grafts, specifically
evaluating ultimate load to failure, load at 3 mm of displacement, and
stiffness. These parameters characterize the time zero, in vitro, static
tensile properties of these graft options. Our hypothesis was that for
grafts of similar size, there would not be a significant difference in the
biomechanical properties. Study Design: Controlled laboratory study. Methods: Quadriceps and hamstring tendon grafts were harvested from 6 human cadaveric
knees (mean age, 61.17 ± 10.38 years). These matched grafts were prepared
and biomechanically tested using an all-electric dynamic test load system.
The mean diameter, stiffness, ultimate load to failure, and load to 3 mm of
displacement were evaluated and analyzed. Results: The mean diameters of the 6-strand hamstring and quadriceps tendons were
11.33 and 10.16 mm, respectively (P = .03). Despite these
significantly different diameters, no differences were found in graft
ultimate load to failure or load at 3 mm of displacement. The 6-strand
hamstring tendon graft was significantly stiffer compared with the
quadriceps tendon (1147.65 vs 808.65 N/mm; P = .04). Conclusion: The 6-strand hamstring tendon and quadriceps tendon graft had similar
biomechanical properties with respect to ultimate load to failure and load
at 3 mm of displacement in 6 matched cadaveric specimens. Both grafts were
significantly stiffer than the native ACL, and the hamstring tendon
construct was significantly stiffer than the quadriceps tendon. Clinical Relevance: The quadriceps tendon graft is a reliable alternative to a 6-strand hamstring
tendon graft for ACL reconstruction.
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Affiliation(s)
- Ryan Urchek
- Crystal Clinic Orthopaedic Center, Akron, Ohio, USA
| | - Spero Karas
- Emory University, Orthopaedic Sports Medicine, Atlanta, Georgia, USA
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Grassi A, Signorelli C, Lucidi GA, Raggi F, Macchiarola L, Roberti Di Sarsina T, Marcheggiani Muccioli GM, Filardo G, Zaffagnini S. ACL reconstruction with lateral plasty reduces translational and rotatory laxity compared to anatomical single bundle and non-anatomical double bundle surgery: An in vivo kinematic evaluation with navigation system. Clin Biomech (Bristol, Avon) 2019; 69:1-8. [PMID: 31260843 DOI: 10.1016/j.clinbiomech.2019.06.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Revised: 05/24/2019] [Accepted: 06/13/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND Significantly better stability may be achieved with a Single Bundle Lateral Plasty (SBLP) reconstruction compared with the Single Bundle (SB) and Double Bundle (DB) procedures. METHODS The study included 42 patients who underwent ACL reconstruction. Patients were randomly selected for one of the following surgical procedure defining three study groups: Single-Bundle-Lateral-Plasty, Single-Bundle and Double-Bundle procedures. Laxity evaluation was performed with an intraoperative navigation system. Lachman test (AP30), Drawer test (AP90), Varus-Valgus stress test at 0° and 30° knee flexion (VV0, VV30), Internal-External rotation (IE30, IE90), and pivot shift (PS) test are the clinical test executed for the laxity evaluation. Laxity reduction was defined as the difference between laxity before the fixation of the graft used for the reconstruction and the laxity just after its fixation. FINDINGS For all the analyzed surgical techniques, the pre-reconstruction laxity values were statistically higher (P < 0.05) than the post-reconstruction values for all the analyzed tests. The analysis of the Drawer test and Internal-External rotation at 30° and 90° of knee flexion, highlighted a significant difference at time zero after surgery among the three study groups. The results showed that the SBLP technique had the highest reduction values compared to SB (PIE90 = 0.001) and DB (PAP90 = 0.012; PIE30 = 0.021; PIE90 = 0.003) techniques. INTERPRETATION SBLP technique showed significantly superior results in terms of antero-posterior and internal-external laxity reduction at time-zero after ACL reconstruction.
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Affiliation(s)
- Alberto Grassi
- IRCCS Istituto Ortopedico Rizzoli, Laboratorio di Biomeccanica e Innovazione Tecnologica, Via Di Barbiano 1/10, 40136 Bologna, BO, Italy; IRCCS Istituto Ortopedico Rizzoli, Clinica Ortopedica e Traumatologica I, Via Pupilli 1, 40136 Bologna, BO, Italy; Università di Bologna, Dipartimento di Scienze Biomediche e NeuroMotorie (DIBINEM), Via Foscolo 7, 40123 Bologna, BO, Italy.
| | - Cecilia Signorelli
- IRCCS Istituto Ortopedico Rizzoli, Laboratorio di Biomeccanica e Innovazione Tecnologica, Via Di Barbiano 1/10, 40136 Bologna, BO, Italy.
| | - Gian Andrea Lucidi
- IRCCS Istituto Ortopedico Rizzoli, Clinica Ortopedica e Traumatologica I, Via Pupilli 1, 40136 Bologna, BO, Italy.
| | - Federico Raggi
- IRCCS Istituto Ortopedico Rizzoli, Laboratorio di Biomeccanica e Innovazione Tecnologica, Via Di Barbiano 1/10, 40136 Bologna, BO, Italy; IRCCS Istituto Ortopedico Rizzoli, Clinica Ortopedica e Traumatologica I, Via Pupilli 1, 40136 Bologna, BO, Italy; Università di Bologna, Dipartimento di Scienze Biomediche e NeuroMotorie (DIBINEM), Via Foscolo 7, 40123 Bologna, BO, Italy
| | - Luca Macchiarola
- IRCCS Istituto Ortopedico Rizzoli, Laboratorio di Biomeccanica e Innovazione Tecnologica, Via Di Barbiano 1/10, 40136 Bologna, BO, Italy; IRCCS Istituto Ortopedico Rizzoli, Clinica Ortopedica e Traumatologica I, Via Pupilli 1, 40136 Bologna, BO, Italy; Università di Bologna, Dipartimento di Scienze Biomediche e NeuroMotorie (DIBINEM), Via Foscolo 7, 40123 Bologna, BO, Italy
| | - Tommaso Roberti Di Sarsina
- IRCCS Istituto Ortopedico Rizzoli, Laboratorio di Biomeccanica e Innovazione Tecnologica, Via Di Barbiano 1/10, 40136 Bologna, BO, Italy; IRCCS Istituto Ortopedico Rizzoli, Clinica Ortopedica e Traumatologica I, Via Pupilli 1, 40136 Bologna, BO, Italy; Università di Bologna, Dipartimento di Scienze Biomediche e NeuroMotorie (DIBINEM), Via Foscolo 7, 40123 Bologna, BO, Italy
| | - Giulio Maria Marcheggiani Muccioli
- IRCCS Istituto Ortopedico Rizzoli, Laboratorio di Biomeccanica e Innovazione Tecnologica, Via Di Barbiano 1/10, 40136 Bologna, BO, Italy; IRCCS Istituto Ortopedico Rizzoli, Clinica Ortopedica e Traumatologica I, Via Pupilli 1, 40136 Bologna, BO, Italy; Università di Bologna, Dipartimento di Scienze Biomediche e NeuroMotorie (DIBINEM), Via Foscolo 7, 40123 Bologna, BO, Italy
| | - Giuseppe Filardo
- IRCCS Istituto Ortopedico Rizzoli, Laboratorio di NanoBiotecnologie (NaBi), Via Di Barbiano 1/10, 40136 Bologna, BO, Italy.
| | - Stefano Zaffagnini
- IRCCS Istituto Ortopedico Rizzoli, Laboratorio di Biomeccanica e Innovazione Tecnologica, Via Di Barbiano 1/10, 40136 Bologna, BO, Italy; IRCCS Istituto Ortopedico Rizzoli, Clinica Ortopedica e Traumatologica I, Via Pupilli 1, 40136 Bologna, BO, Italy; Università di Bologna, Dipartimento di Scienze Biomediche e NeuroMotorie (DIBINEM), Via Foscolo 7, 40123 Bologna, BO, Italy.
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The Role of Fibers Within the Tibial Attachment of the Anterior Cruciate Ligament in Restraining Tibial Displacement. Arthroscopy 2019; 35:2101-2111. [PMID: 31272629 DOI: 10.1016/j.arthro.2019.01.058] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 01/29/2019] [Accepted: 01/29/2019] [Indexed: 02/02/2023]
Abstract
PURPOSE To evaluate the load-bearing functions of the fibers of the anterior cruciate ligament (ACL) tibial attachment in restraining tibial anterior translation, internal rotation, and combined anterior and internal rotation laxities in a simulated pivot-shift test. METHODS Twelve knees were tested using a robot. Laxities tested were: anterior tibial translation (ATT), internal rotation (IR), and coupled translations and rotations during a simulated pivot-shift. The kinematics of the intact knee was replayed after sequentially transecting 9 segments of the ACL attachment and fibers entering the lateral gutter, measuring their contributions to restraining laxity. The center of effort (COE) of the ACL force transmitted to the tibia was calculated. A blinded anatomic analysis identified the densest fiber area in the attachment of the ACL and thus its centroid (center of area). This centroid was compared with the biomechanical COE. RESULTS The anteromedial tibial fibers were the primary restraint of ATT (84% across 0° to 90° flexion) and IR (61%) during isolated and coupled displacements, except for the pivot-shift and ATT in extension. The lateral gutter resisted 28% of IR at 90° flexion. The anteromedial fibers showed significantly greater restraint of simulated pivot-shift rotations than the central and posterior fibers (P < .05). No significant differences (all <2 mm) were found between the anatomic centroid of the C-shaped attachment and the COE under most loadings. CONCLUSIONS The peripheral anteromedial fibers were the most important area of the ACL tibial attachment in the restraint of tibial anterior translation and internal rotation during isolated and coupled displacements. These mechanical results matched the C-shaped anteromedial attachment of the dense collagen fibers of the ACL. CLINICAL RELEVANCE The most important fibers in restraining tibial displacements attach to the C-shaped anteromedial area of the native ACL tibial attachment. This finding provides an objective rationale for ACL graft position to enable it to reproduce the physiological path of load transmission for tibial restraint.
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Okazaki Y, Furumatsu T, Miyazawa S, Kodama Y, Kamatsuki Y, Hino T, Masuda S, Ozaki T. Meniscal repair concurrent with anterior cruciate ligament reconstruction restores posterior shift of the medial meniscus in the knee-flexed position. Knee Surg Sports Traumatol Arthrosc 2019; 27:361-368. [PMID: 30251100 DOI: 10.1007/s00167-018-5157-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Accepted: 09/17/2018] [Indexed: 01/08/2023]
Abstract
PURPOSE The purpose of this study was to evaluate the shape and shift of the medial meniscus before and after meniscal repair concurrent with anterior cruciate ligament (ACL) reconstruction using magnetic resonance imaging (MRI) at 90° of knee flexion. METHODS This study included 18 patients with ACL-deficient knees without meniscus tears (group A), 11 patients with medial meniscus tears alone (group M), and 15 patients with ACL-deficient knees complicated with medial meniscus tears (group AM). The posterior segment shape was evaluated using open MRI at 90° of knee flexion preoperatively and at 3 months postoperatively. The length, height, width, and posterior extrusion of the medial meniscus and posterior tibiofemoral distance were measured. These measurements were compared between the three groups. RESULTS On preoperative MRI, a significant difference was observed in the posterior extrusion of the medial meniscus (group A, 1.2 ± 0.5 mm; group M, 1.7 ± 0.3 mm; group AM, 4.1 ± 1.5 mm, p < 0.001). All parameters did not differ between the three groups on postoperative MRI. In addition, the posterior width and extrusion of the medial meniscus were decreased significantly after meniscal repair concurrent with ACL reconstruction. CONCLUSIONS This study demonstrated that the medial meniscus shifted posteriorly at 90° of knee flexion in ACL-deficient knees complicated with medial meniscus tears. Medial meniscal repair concurrent with ACL reconstruction improved the deformed morphology and posterior extrusion. MRI measurements of the posterior extrusion at the knee-flexed position may be clinically useful to assess the functional improvement of the medial meniscus following meniscal repair combined with ACL reconstruction. LEVEL OF EVIDENCE III.
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Affiliation(s)
- Yoshiki Okazaki
- Department of Orthopaedic Surgery, Okayama University Graduate School, 2-5-1 Shikata-cho, Kitaku, Okayama, 700-8558, Japan
| | - Takayuki Furumatsu
- Department of Orthopaedic Surgery, Okayama University Graduate School, 2-5-1 Shikata-cho, Kitaku, Okayama, 700-8558, Japan.
| | - Shinichi Miyazawa
- Department of Orthopaedic Surgery, Okayama University Graduate School, 2-5-1 Shikata-cho, Kitaku, Okayama, 700-8558, Japan
| | - Yuya Kodama
- Department of Orthopaedic Surgery, Okayama University Graduate School, 2-5-1 Shikata-cho, Kitaku, Okayama, 700-8558, Japan
| | - Yusuke Kamatsuki
- Department of Orthopaedic Surgery, Okayama University Graduate School, 2-5-1 Shikata-cho, Kitaku, Okayama, 700-8558, Japan
| | - Tomohito Hino
- Department of Orthopaedic Surgery, Okayama University Graduate School, 2-5-1 Shikata-cho, Kitaku, Okayama, 700-8558, Japan
| | - Shin Masuda
- Department of Orthopaedic Surgery, Okayama University Graduate School, 2-5-1 Shikata-cho, Kitaku, Okayama, 700-8558, Japan
| | - Toshifumi Ozaki
- Department of Orthopaedic Surgery, Okayama University Graduate School, 2-5-1 Shikata-cho, Kitaku, Okayama, 700-8558, Japan
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Calcium phosphate-hybridized tendon grafts reduce femoral bone tunnel enlargement in anatomic single-bundle ACL reconstruction. Knee Surg Sports Traumatol Arthrosc 2018; 26:500-507. [PMID: 28748492 DOI: 10.1007/s00167-017-4657-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Accepted: 07/24/2017] [Indexed: 10/19/2022]
Abstract
PURPOSE This study aimed to clarify the effect of calcium phosphate (CaP)-hybridized tendon grafting versus unhybridized tendon grafting on the morphological changes to the bone tunnels at the aperture 1 year after anatomic single-bundle anterior cruciate ligament (ACL) reconstruction. METHODS Seventy-three patients were randomized to undergo the CaP (n = 37) or the conventional method (n = 36). All patients underwent computed tomography (CT) evaluation 1 week and 1 year post-operatively. The femoral and tibial tunnels at the aperture were evaluated on reconstructed 3D CT images. Changes in the cross-sectional area (CSA) and diameters of the femur and the tibia, and the translation rate of the tunnel walls and the morphological changes of both tunnels were assessed. RESULTS There was a significant reduction in the increase in the CSA and the anterior-posterior and proximal-distal tunnel diameters on the femoral side in the CaP group as compared with the conventional group. On the femoral side, the translation rate of the posterior wall was significantly larger in the CaP group than in the conventional group, whereas the translation rate of the distal wall was significantly smaller in the CaP group than in the conventional group. CONCLUSIONS As compared with the conventional method, the CaP-hybridized tendon graft reduced bone tunnel enlargement on the femoral side 1 year after anatomic single-bundle ACL reconstruction due to an anterior shift of the posterior wall and reduced distal shift in the femoral bone tunnel. Clinically, the CaP-hybridized tendon grafts can prevent femoral bone tunnel enlargement in anatomic single-bundle ACL reconstruction. LEVEL OF EVIDENCE I.
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15
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Tanaka Y, Kita K, Takao R, Amano H, Uchida R, Shiozaki Y, Yonetani Y, Kinugasa K, Mae T, Horibe S. Chronicity of Anterior Cruciate Ligament Deficiency, Part 1: Effects on the Tibiofemoral Relationship Before and Immediately After Anatomic ACL Reconstruction With Autologous Hamstring Grafts. Orthop J Sports Med 2018; 6:2325967117750813. [PMID: 29383322 PMCID: PMC5784495 DOI: 10.1177/2325967117750813] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Background: It remains unclear whether the tibiofemoral relationship in the sagittal plane is
restored after anatomic anterior cruciate ligament (ACL) reconstruction, particularly in
cases of chronic ACL deficiency (ACLD). Hypothesis: Patients with long-term ACLD will exhibit an anteriorly subluxed tibia both
preoperatively and immediately postoperatively, even after anatomic reconstruction. Study Design: Cohort study; Level of evidence, 2. Methods: In total, 358 patients who had undergone anatomic ACL reconstruction with autologous
semitendinosus grafts were divided into 5 groups based on chronicity of ACLD: (1) 0 to 6
months, (2) 6 months to 1 year, (3) 1 to 2 years, (4) 2 to 5 years, and (5) longer than
5 years. Preoperatively and immediately postoperatively, all patients underwent lateral
radiography in extension to evaluate the tibiofemoral relationship, specifically with
regard to anterior tibial subluxation (ATS), space for the ACL (sACL), and extension
angle. Demographic and radiographic factors were compared among the 5 groups. Results: Preoperative ATS values in groups 4 (mean ± SD, 2.9 ± 2.1 mm) and 5 (2.6 ± 1.9 mm) were
significantly greater than in group 1 (1.6 ± 1.9 mm). Postoperatively, the tibia was
posteriorly overconstrained in all groups, and there was no difference in immediately
postoperative ATS among the 5 groups. Further evaluation of the tibiofemoral
relationship in the sagittal plane revealed that the mean preoperative side-to-side
difference in sACL (sACL-SSD) was greater in groups 4 (2.5 ± 1.6 mm) and 5 (2.2 ± 1.7
mm) than in group 1 (1.2 ± 1.5 mm). Immediately after ACL reconstruction, however, there
were no group-dependent differences in sACL-SSD. No significant group-dependent
differences were found for extension deficit. Conclusion: Chronicity of ACLD had an effect on the preoperative tibiofemoral relationship in the
sagittal plane, including ATS and sACL-SSD, especially in patients with ACLD longer than
2 years. However, preoperative extension deficit was not influenced by chronicity.
Immediately postoperatively, chronicity did not affect the ability of anatomic ACL
reconstruction to reduce subluxation.
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Affiliation(s)
- Yoshinari Tanaka
- Department of Sports Orthopedics, Osaka Rosai Hospital, Sakai, Japan
| | - Keisuke Kita
- Department of Sports Orthopedics, Osaka Rosai Hospital, Sakai, Japan
| | - Rikio Takao
- Faculty of Comprehensive Rehabilitation, Osaka Prefecture University, Habikino, Japan
| | - Hiroshi Amano
- Department of Sports Orthopedics, Osaka Rosai Hospital, Sakai, Japan
| | - Ryohei Uchida
- Department of Orthopedic Surgery, Seifu Hospital, Sakai, Japan
| | | | - Yasukazu Yonetani
- Department of Orthopedic Surgery, Hoshigaoka Medical Center, Hirakata, Japan
| | - Kazutaka Kinugasa
- Department of Sports Orthopedics, Osaka Rosai Hospital, Sakai, Japan
| | - Tatsuo Mae
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Shuji Horibe
- Faculty of Comprehensive Rehabilitation, Osaka Prefecture University, Habikino, Japan
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Choi CH, Kim SJ, Chun YM, Kim SH, Lee SK, Eom NK, Jung M. Influence of knee flexion angle and transverse drill angle on creation of femoral tunnels in double-bundle anterior cruciate ligament reconstruction using the transportal technique: Three-dimensional computed tomography simulation analysis. Knee 2018; 25:99-108. [PMID: 28978459 DOI: 10.1016/j.knee.2017.09.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Revised: 07/19/2017] [Accepted: 09/11/2017] [Indexed: 02/02/2023]
Abstract
BACKGROUND The purpose of this study was to find appropriate flexion angle and transverse drill angle for optimal femoral tunnels of anteromedial (AM) bundle and posterolateral (PL) bundle in double-bundle ACL reconstruction using transportal technique. METHODS Thirty three-dimensional knee models were reconstructed. Knee flexion angles were altered from 100° to 130° at intervals of 10°. Maximum transverse drill angle (MTA), MTA minus 10° and 20° were set up. Twelve different tunnels were determined by four flexion angles and three transverse drill angles for each bundle. Tunnel length, wall breakage, inter-tunnel communication and graft-bending angle were assessed. RESULTS Mean tunnel length of AM bundle was >30mm at 120° and 130° of flexion in all transverse drill angles. Mean tunnel length of PL bundle was >30mm during every condition. There were ≥1 cases of wall breakage except at 120° and 130° of flexion with MTA for AM bundle. There was no case of wall breakage for PL bundle. Considering inter-tunnel gap of >2mm without communication and obtuse graft-bending angle, 120° of flexion and MTA could be recommended as optimal condition for femoral tunnels of AM and PL bundles. CONCLUSION Flexion angle and transverse drill angle had combined effect on femoral tunnel in double-bundle ACL reconstruction using transportal technique. Achieving flexion angle of 120° and transverse drill angle close to the medial femoral condyle could be recommended as optimal condition for femoral tunnels of AM and PL bundles to avoid insufficient tunnel length, wall breakage, inter-tunnel communication and acute graft-bending angle.
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Affiliation(s)
- Chong Hyuk Choi
- Department of Orthopaedic Surgery, Arthroscopy and Joint Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Sung-Jae Kim
- Department of Orthopaedic Surgery, Arthroscopy and Joint Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Yong-Min Chun
- Department of Orthopaedic Surgery, Arthroscopy and Joint Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Sung-Hwan Kim
- Department of Orthopaedic Surgery, Arthroscopy and Joint Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Su-Keon Lee
- Department of Orthopaedic Surgery, Gwangmyung Sungae Hospital, Gyeonggi, Republic of Korea
| | - Nam-Kyu Eom
- Department of Orthopaedic Surgery, Arthroscopy and Joint Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Min Jung
- Department of Orthopaedic Surgery, Arthroscopy and Joint Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea.
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Tashiro Y, Sundaram V, Thorhauer E, Gale T, Anderst W, Irrgang JJ, Fu FH, Tashman S. In Vivo Analysis of Dynamic Graft Bending Angle in Anterior Cruciate Ligament-Reconstructed Knees During Downward Running and Level Walking: Comparison of Flexible and Rigid Drills for Transportal Technique. Arthroscopy 2017; 33:1393-1402. [PMID: 28343809 PMCID: PMC5495610 DOI: 10.1016/j.arthro.2017.01.041] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Revised: 01/25/2017] [Accepted: 01/26/2017] [Indexed: 02/07/2023]
Abstract
PURPOSE To determine the in vivo dynamic graft bending angle (GBA) in anterior cruciate ligament (ACL)-reconstructed knees, correlate the angle to tunnel positions and tunnel widening, and evaluate the effects of 2 femoral tunnel drilling techniques on GBA. METHODS Patients with an isolated ACL injury undergoing reconstruction from 2011 to 2012 were included. Transportal techniques were used to create femoral tunnels. Tunnel locations were determined by 3-dimensional computed tomography. Tibiofemoral kinematics during treadmill walking and running were assessed by dynamic stereo x-ray analysis 6 months and 2 years postoperatively. The GBA was calculated from the 3-dimensional angle between the graft and femoral tunnel vectors on each motion frame. The cross-sectional areas of femoral tunnels were measured at 6 months and compared with the initial size to assess tunnel widening. RESULTS A total of 54 patients were included. Use of flexible drills resulted in significantly higher GBAs during walking (80.6° ± 7.8°, P < .001) and running (80.5° ± 9.0°, P = .025) than rigid drills (walking, 67.5° ± 9.3°; running, 74.1° ± 9.6°). Their use led to greater tunnel widening of 113.9% ± 17.6%, as compared with 97.7% ± 17.5% for rigid drills (P = .003). The femoral and tibial apertures were located in similar anatomic positions in both groups, but the femoral tunnel exits were located more anteriorly (P < .001) in the flexible drill group. A higher GBA was highly correlated with anterior location of femoral exits (r = 0.63, P < .001) and moderately correlated with greater tunnel widening (r = 0.48, P < .001). CONCLUSIONS High GBAs were identified during dynamic activities after anatomic ACL reconstruction with a transportal femoral tunnel drilling technique. The GBA was greater when flexible drills were used. The high bending angle resulted from the more anterior location of the femoral tunnel exits, and it correlated with early bone tunnel widening at 6 months. These results suggest that a high GBA may increase stress at the bone-graft interface and contribute to greater tunnel widening after anatomic ACL reconstruction, although the clinical impact should be further investigated. LEVEL OF EVIDENCE Level III, retrospective comparative study.
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Affiliation(s)
- Ysutaka Tashiro
- Department of Orthopaedic Surgery, University of Pittsburgh, 3471 Fifth Avenue Pittsburgh, PA 15213, USA, Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Vani Sundaram
- Department of Orthopaedic Surgery, University of Pittsburgh, 3471 Fifth Avenue Pittsburgh, PA 15213, USA
| | - Eric Thorhauer
- Department of Orthopaedic Surgery, University of Pittsburgh, 3471 Fifth Avenue Pittsburgh, PA 15213, USA
| | - Tom Gale
- Department of Orthopaedic Surgery, University of Pittsburgh, 3471 Fifth Avenue Pittsburgh, PA 15213, USA
| | - William Anderst
- Department of Orthopaedic Surgery, University of Pittsburgh, 3471 Fifth Avenue Pittsburgh, PA 15213, USA
| | - James J. Irrgang
- Department of Orthopaedic Surgery, University of Pittsburgh, 3471 Fifth Avenue Pittsburgh, PA 15213, USA
| | - Freddie H. Fu
- Department of Orthopaedic Surgery, University of Pittsburgh, 3471 Fifth Avenue Pittsburgh, PA 15213, USA
| | - Scott Tashman
- Department of Orthopaedic Surgery, University of Pittsburgh, 3471 Fifth Avenue Pittsburgh, PA 15213, USA
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Femoral interference screw fixation of hamstring and quadriceps tendons for ACL reconstruction. Knee Surg Sports Traumatol Arthrosc 2017; 25:1241-1248. [PMID: 26818555 DOI: 10.1007/s00167-016-4001-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Accepted: 01/13/2016] [Indexed: 10/22/2022]
Abstract
PURPOSE This cadaveric study compares the biomechanical properties of femoral graft fixation in ACL reconstruction of either quadriceps or hamstring tendon grafts with four different interference screws. The hypothesis was that quadriceps tendon grafts provide at least equal results concerning gap formation during cyclic loading and ultimate failure load compared to hamstring tendon grafts with four different interference screws. METHODS Eighty porcine femora underwent interference screw fixation of human tendon grafts for ACL reconstruction. Either quadriceps (Q) or hamstring (H) tendon grafts and four different bioabsorbable interference (Wolf (W), Storz (S), Mitek (M), Arthrex (A)) screws were used, resulting in 8 groups with 10 specimens per groups (WQ, WH, SQ, SH, MQ, MH, AQ, AH). Biomechanical analysis included pretensioning the constructs with 60 N for 30 s, then cyclic loading of 500 cycles between 60 and 250 N at 1 Hz in a servohydraulic testing machine, with measurement of elongation and stiffness including video measurements. After this, ultimate failure load and failure mode analysis were performed. RESULTS No statistically significant difference could be noted between the groups regarding gap formation during cyclic loading [Cycles 21-500 (mm): WQ 3.6 ± 0.8, WH 3.9 ± 1.4, SQ 3.6 ± 0.8, SH 3.3 ± 1.5, MQ 4.3 ± 0.8, MH 4.6 ± 1.0, AQ 4.8 ± 0.8, AH 4.3 ± 1.5, n.s.], stiffness during cyclic loading [Cycles 21-500 (N/mm): WQ 72.9 ± 16.9, WH 71.6 ± 20.7, SQ 69.5 ± 23.9, SH 77.4 ± 25.1, MQ 59.6 ± 11.2, MH 48.4 ± 15.4, AQ 48.8 ± 12.7, AH 51.9 ± 22.2, n.s.], and ultimate failure load [(N): WQ 474.4 ± 88.0, WH 579.3 ± 124.2, SQ 493.9 ± 105.2, SH 576.0 ± 90.4, MQ 478.6 ± 59.0, MH 543.9 ± 119.7, AQ 480.2 ± 93.8, AH 497.8 ± 74.2, n.s.]. CONCLUSIONS Quadriceps tendon grafts yield comparable biomechanical results for femoral interference screw fixation in ACL reconstruction compared to hamstring tendon grafts. From a clinical perspective, quadriceps tendon grafts should therefore be considered as a good option in ACL reconstruction in the future.
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Miller RM, Rahnemai-Azar AA, Sürer L, Arilla FV, Fu FH, Debski RE, Musahl V. Tensile properties of a split quadriceps graft for ACL reconstruction. Knee Surg Sports Traumatol Arthrosc 2017; 25:1249-1254. [PMID: 26869030 DOI: 10.1007/s00167-016-4019-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Accepted: 01/20/2016] [Indexed: 01/14/2023]
Abstract
PURPOSE Anatomic double-bundle ACL reconstruction can be performed using different grafts, such as quadriceps tendon. Grafts can be split in either coronal or sagittal planes to approximate the two bundles of the native ACL, but it is unknown whether a difference exists in the graft tensile properties depending on splitting plane. The purpose of this study was to evaluate the tensile properties of split human quadriceps tendon-bone grafts. METHODS Twenty full-thickness quadriceps tendon-bone grafts were prepared to mimic grafts for double-bundle ACL reconstruction. Ten grafts were split in the sagittal plane, and ten were split in the coronal plane. Each graft underwent cyclic creep testing and load-to-failure testing to compare creep, ultimate load, ultimate elongation, stiffness, and tangent modulus between splitting planes. All parameters were compared between splitting groups (significance p < 0.05). RESULTS Lateral halves of grafts split in the sagittal plane exhibited a percent creep of 42.5 ± 12.4 %, ultimate load of 445 ± 210 N, ultimate elongation of 7.3 ± 1.9 mm, stiffness of 75.7 ± 19.9 N/mm, and tangent modulus of 174.0 ± 99.8 MPa. No differences were found between halves within split tendons or between splitting planes (n.s.). CONCLUSIONS Overall, splitting quadriceps tendon grafts for anatomic double-bundle ACL reconstruction results in similar tensile properties regardless of splitting plane. Surgeons can split quadriceps tendon in either splitting plane, but should take care to preserve fibres as much as possible. This study provides data that support the use of both coronal and sagittal splits of quadriceps tendons for anatomic double-bundle ACL reconstruction.
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Affiliation(s)
- R Matthew Miller
- Orthopaedic Robotics Laboratory, University of Pittsburgh, 408 Center for Bioengineering, 300 Technology Drive, 306 CNBIO, Pittsburgh, PA, 15219, USA
- Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, 300 Technology Drive, 306 CNBIO, Pittsburgh, PA, 15219, USA
| | - Amir Ata Rahnemai-Azar
- Orthopaedic Robotics Laboratory, University of Pittsburgh, 408 Center for Bioengineering, 300 Technology Drive, 306 CNBIO, Pittsburgh, PA, 15219, USA
- Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, 300 Technology Drive, 306 CNBIO, Pittsburgh, PA, 15219, USA
- Department of Orthopaedic Surgery, University of Pittsburgh, 3471 Fifth Avenue, 1010 Kaufmann Building, Pittsburgh, PA, 15213, USA
| | - Levent Sürer
- Orthopaedic Robotics Laboratory, University of Pittsburgh, 408 Center for Bioengineering, 300 Technology Drive, 306 CNBIO, Pittsburgh, PA, 15219, USA
- Department of Orthopaedic Surgery, University of Pittsburgh, 3471 Fifth Avenue, 1010 Kaufmann Building, Pittsburgh, PA, 15213, USA
| | - Fabio V Arilla
- Orthopaedic Robotics Laboratory, University of Pittsburgh, 408 Center for Bioengineering, 300 Technology Drive, 306 CNBIO, Pittsburgh, PA, 15219, USA
- Department of Orthopaedic Surgery, University of Pittsburgh, 3471 Fifth Avenue, 1010 Kaufmann Building, Pittsburgh, PA, 15213, USA
| | - Freddie H Fu
- Orthopaedic Robotics Laboratory, University of Pittsburgh, 408 Center for Bioengineering, 300 Technology Drive, 306 CNBIO, Pittsburgh, PA, 15219, USA
- Department of Orthopaedic Surgery, University of Pittsburgh, 3471 Fifth Avenue, 1010 Kaufmann Building, Pittsburgh, PA, 15213, USA
| | - Richard E Debski
- Orthopaedic Robotics Laboratory, University of Pittsburgh, 408 Center for Bioengineering, 300 Technology Drive, 306 CNBIO, Pittsburgh, PA, 15219, USA.
- Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, 300 Technology Drive, 306 CNBIO, Pittsburgh, PA, 15219, USA.
- Department of Orthopaedic Surgery, University of Pittsburgh, 3471 Fifth Avenue, 1010 Kaufmann Building, Pittsburgh, PA, 15213, USA.
| | - Volker Musahl
- Orthopaedic Robotics Laboratory, University of Pittsburgh, 408 Center for Bioengineering, 300 Technology Drive, 306 CNBIO, Pittsburgh, PA, 15219, USA
- Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, 300 Technology Drive, 306 CNBIO, Pittsburgh, PA, 15219, USA
- Department of Orthopaedic Surgery, University of Pittsburgh, 3471 Fifth Avenue, 1010 Kaufmann Building, Pittsburgh, PA, 15213, USA
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Kraeutler MJ, Wolsky RM, Vidal AF, Bravman JT. Anatomy and Biomechanics of the Native and Reconstructed Anterior Cruciate Ligament: Surgical Implications. J Bone Joint Surg Am 2017; 99:438-445. [PMID: 28244915 DOI: 10.2106/jbjs.16.00754] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Matthew J Kraeutler
- 1Department of Orthopedics, University of Colorado School of Medicine, Aurora, Colorado
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Ho-Eckart LK, Seki M, Luizza LM, Kearney MT, Lopez MJ. Joint stability after canine cranial cruciate ligament graft reconstruction varies among femoral fixation sites. Vet Surg 2017; 46:213-225. [PMID: 28075493 DOI: 10.1111/vsu.12609] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Accepted: 09/29/2016] [Indexed: 12/30/2022]
Abstract
OBJECTIVE To quantify stability in cranial cruciate ligament (CrCL) deficient canine stifles with hamstring grafts affixed at 3 femoral locations. STUDY DESIGN Canine stifle motion study using a multi-cohort, repeated measures design. SAMPLE POPULATION 27 canine cadaver stifles. METHODS Hamstring grafts (HG) were affixed at the gracilis-semitendinosus insertion and on the lateral femur (1) proximal trochlear ridge (TR), (2) craniodistal to fabella (F), or (3) condyle center (CC). Total, cranial, and caudal tibial translation and total, medial, and lateral angular displacement, with and without translational load, were quantified with the CrCL intact, transected, and reconstructed. Angular displacement was quantified from points on the distal femur and proximal tibia. Graft strain was calculated from tissue displacement measured at joint angles of 30°, 60°, 90°, and 120°. RESULTS Tibial translation was lowest in F constructs, which also achieved the least difference in tibial translation from intact stifles. Tibial translation was lower in intact stifles than in CrCL transected or reconstructed stifles. Less angular displacement of the proximal tibia was detected in the medial than in the lateral direction, and tibial displacement was lower in the cranial than the caudal direction. Angular displacement was lowest in the F treatment group. F constructs had the lowest graft strain at joint angles greater than 30°. CONCLUSIONS Femoral fixation of a canine hamstring graft craniodistal to the lateral fabella conferred the best joint stability and lowest graft strain in vitro. No fixation method restored joint stability of the intact CrCL.
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Affiliation(s)
- Louisa K Ho-Eckart
- Laboratory for Equine and Comparative Orthopedic Research, Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, Louisiana
| | - Masahiro Seki
- Laboratory for Equine and Comparative Orthopedic Research, Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, Louisiana
| | - Lindsey M Luizza
- School of Medicine, New Orleans Health Sciences Center, Louisiana State University, Baton Rouge, Louisiana
| | - Michael T Kearney
- Statistical Services Unit, Department of Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, Louisiana
| | - Mandi J Lopez
- Laboratory for Equine and Comparative Orthopedic Research, Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, Louisiana
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Lord BR, El-Daou H, Sabnis BM, Gupte CM, Wilson AM, Amis AA. Biomechanical comparison of graft structures in anterior cruciate ligament reconstruction. Knee Surg Sports Traumatol Arthrosc 2017; 25:559-568. [PMID: 27637854 PMCID: PMC5331106 DOI: 10.1007/s00167-016-4316-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Accepted: 09/01/2016] [Indexed: 12/31/2022]
Abstract
PURPOSE Double-bundle (DB) anterior cruciate ligament (ACL) reconstruction may offer kinematic restoration superior to anatomic single bundle (SB), but it remains technically challenging. The femoral attachment site has the most effect on ACL graft isometry, so a simplified three-socket (3S) construct which still uses two sockets to cover the femoral ACL attachment is attractive. It was hypothesised that ACL reconstruction using three- and four-socket techniques would more closely restore native knee kinematics compared to anatomic two-socket (SB) surgery. METHODS Nine cadaveric knees were used to evaluate the kinematics of ACL-intact, ACL-deficient, anatomic SB, three-socket, and DB arthroscopic ACL reconstructions. Suspensory fixation was used, and grafts were tensioned to match the anterior draw of the intact knee at 20°. A six-degree-of-freedom robotic system measured knee laxity under 90 N anterior tibial force and rotational laxity under 5 N-m torque. Combined moments were applied to simulate the pivot-shift subluxation: 4 N-m internal rotation and 8 N-m valgus. RESULTS Significant differences between reconstructions were not found during anterior tibial loading, apart from SB being more lax than DB at 60° flexion. All reconstructions produced comparable laxity to the intact state, apart from SB at 60°. Significant differences between reconstructions were not found at any flexion angle during tibial internal/external applied torques. Under combined loading, DB produced significantly less laxity than SB constructs apart from anterior tibial translation at 0° and internal rotation at 45°. 3S and DB were comparable to the native knee throughout. CONCLUSION Although 3S restored laxities to a similar extent to DB, significant superiority over SB surgery was not observed. Although statistically significant differences were found between SB and DB surgery during anterior tibial and simulated pivot-shift loading, both remained similar to the native knee. The clinical relevance is that this study did not support an ACL graft construct more complex than an anatomic single bundle.
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Affiliation(s)
- Breck R. Lord
- 0000 0001 2113 8111grid.7445.2The Biomechanics Group, Department of Mechanical Engineering, Imperial College London, London, SW7 2AZ UK ,0000 0004 0400 7883grid.414262.7Basingstoke and North Hampshire Hospital, Basingstoke, UK
| | - Hadi El-Daou
- 0000 0001 2113 8111grid.7445.2The Biomechanics Group, Department of Mechanical Engineering, Imperial College London, London, SW7 2AZ UK
| | - Bhushan M. Sabnis
- 0000 0004 0400 7883grid.414262.7Basingstoke and North Hampshire Hospital, Basingstoke, UK
| | - Chinmay M. Gupte
- 0000 0001 2113 8111grid.7445.2Musculoskeletal Surgery Group, Department of Surgery and Cancer, Imperial College London School of Medicine, Charing Cross Hospital, London, UK
| | - Adrian M. Wilson
- 0000 0004 0400 7883grid.414262.7Basingstoke and North Hampshire Hospital, Basingstoke, UK
| | - Andrew A. Amis
- 0000 0001 2113 8111grid.7445.2The Biomechanics Group, Department of Mechanical Engineering, Imperial College London, London, SW7 2AZ UK ,0000 0001 2113 8111grid.7445.2Musculoskeletal Surgery Group, Department of Surgery and Cancer, Imperial College London School of Medicine, Charing Cross Hospital, London, UK
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Abstract
Anterior cruciate ligament (ACL) reconstruction aims to restore the translational and rotational motion to the knee joint that is lost after injury. However, despite technical advancements, clinical outcomes are less than ideal, particularly in return to previous activity level. A major issue is the inability to standardize treatment protocols due to variations in materials and approaches used to accomplish ACL reconstruction. These include surgical techniques such as the transtibial and anteromedial portal methods that are currently under use and the wide availability of graft types that will be used to reconstruct the ACL. In addition, concomitant soft tissue injuries to the menisci and capsule are frequently present after ACL injury and, if left unaddressed, can lead to persistent instability even after the ACL has been reconstructed. Advances in the field of biomechanics that help to objectively measure motion of the knee joint may provide more precise data than current subjective clinical measurements. These technologies include extra-articular motion capture systems that measure the movement of the tibia in relation to the femur. With data gathered from these devices, a threshold for satisfactory knee stability may be established in order to correctly identify a successful reconstruction following ACL injury.
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Abstract
Motion at the knee joint is a complex mechanical phenomenon. Stability is provided by a combination of static and dynamic structures that work in concert to prevent excessive movement or instability that is inherent in various knee injuries. The anterior cruciate ligament (ACL) is a main stabilizer of the knee, providing both translational and rotatory constraint. Despite the high volume of research directed at native ACL function, pathogenesis and surgical reconstruction of this structure, a gold standard for objective quantification of injury and subsequent repair, has not been demonstrated. Furthermore, recent studies have suggested that novel anatomic structures may play a significant role in knee stability. The use of biomechanical principles and testing techniques provides essential objective/quantitative information on the function of bone, ligaments, joint capsule, and other contributing soft tissues in response to various loading conditions. This review discusses the principles of biomechanics in relation to knee stability, with a focus on the objective quantification of knee stability, the individual contributions of specific knee structures to stability, and the most recent technological advances in the biomechanical evaluation of the knee joint.
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Affiliation(s)
- Jason P Zlotnicki
- Department of Orthopaedic Surgery, University of Pittsburgh, 3471 Fifth Avenue, Pittsburgh, PA, 15213, USA
- Orthopaedic Robotics Laboratory, University of Pittsburgh, 408 Center for Bioengineering, 300 Technology Drive, Pittsburgh, PA, 15219, USA
| | - Jan-Hendrik Naendrup
- Department of Orthopaedic Surgery, University of Pittsburgh, 3471 Fifth Avenue, Pittsburgh, PA, 15213, USA
- Orthopaedic Robotics Laboratory, University of Pittsburgh, 408 Center for Bioengineering, 300 Technology Drive, Pittsburgh, PA, 15219, USA
| | - Gerald A Ferrer
- Orthopaedic Robotics Laboratory, University of Pittsburgh, 408 Center for Bioengineering, 300 Technology Drive, Pittsburgh, PA, 15219, USA
- Department of Bioengineering, University of Pittsburgh, 300 Technology Drive, Pittsburgh, PA, 15219, USA
| | - Richard E Debski
- Orthopaedic Robotics Laboratory, University of Pittsburgh, 408 Center for Bioengineering, 300 Technology Drive, Pittsburgh, PA, 15219, USA.
- Department of Bioengineering, University of Pittsburgh, 300 Technology Drive, Pittsburgh, PA, 15219, USA.
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Karikis I, Desai N, Sernert N, Rostgard-Christensen L, Kartus J. Comparison of Anatomic Double- and Single-Bundle Techniques for Anterior Cruciate Ligament Reconstruction Using Hamstring Tendon Autografts: A Prospective Randomized Study With 5-Year Clinical and Radiographic Follow-up. Am J Sports Med 2016; 44:1225-36. [PMID: 26948548 DOI: 10.1177/0363546515626543] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND The aim of this prospective randomized study was to compare the outcomes of the anatomic double-bundle (DB) and anatomic single-bundle (SB) techniques 5 years after anterior cruciate ligament (ACL) reconstruction. Since more effective restoration of rotational laxity is considered the main advantage of the DB technique, the pivot-shift test was the primary outcome variable of the study. HYPOTHESIS Double-bundle ACL reconstruction will result in a better outcome in terms of the pivot-shift test. STUDY DESIGN Randomized controlled trial; Level of evidence, 1. METHODS A total of 105 patients (33 women, 72 men; median age, 27 years; range, 18-52 years) were randomized and underwent ACL reconstruction (DB group, n = 53; SB group, n = 52). All reconstructions were performed anatomically by identifying the ACL footprints, using the anteromedial portal for the femoral tunnel drilling, and utilizing interference screw for tibial and femoral fixation. A single blinded observer examined the patients preoperatively and at follow-up (median, 64 months; range, 55-75 months). Multiple subjective and objective clinical evaluation tests and radiographic assessments of osteoarthritis (OA) were performed using the Ahlbäck, Kellgren-Lawrence, and Fairbank grading systems at 6 weeks postoperatively and at the final follow-up evaluation. RESULTS Preoperatively, no differences were found between the study groups, apart from the preinjury Tegner activity level, which was lower in the DB group (SB: mean, 7.8 [range, 3-9]; DB: mean, 7.3 [range, 0-9]; P = .02). Eighty-seven patients (83%) were available for examination at the 5-year follow-up. Statistical differences could not be found between the groups in terms of the pivot-shift test, KT-1000 arthrometer laxity measurements, manual Lachman test, single-legged-hop test, square-hop test, range of motion, Lysholm knee scoring scale, Tegner activity scale, or Knee injury and Osteoarthritis Outcome Score. Correspondingly, no differences were found between the groups regarding the presence of OA at follow-up. However, a significant increase of OA was found within the DB group at the 5-year follow-up. Both groups improved at follow-up compared with the preoperative assessment in terms of the laxity tests, hop tests, and scoring scales. CONCLUSION At the 5-year follow-up of an unselected group of patients, anatomic DB reconstruction was not superior to anatomic SB reconstruction in terms of the pivot-shift test.
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Affiliation(s)
- Ioannis Karikis
- Department of Orthopaedics, NU-Hospital Group, Trollhättan/Uddevalla, Sweden Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Neel Desai
- Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden Department of Orthopaedics, Sahlgrenska University Hospital, Mölndal, Sweden
| | - Ninni Sernert
- Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden Department of Research and Development, NU-Hospital Group, Trollhättan, Sweden
| | | | - Jüri Kartus
- Department of Orthopaedics, NU-Hospital Group, Trollhättan/Uddevalla, Sweden Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden Department of Research and Development, NU-Hospital Group, Trollhättan, Sweden
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