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Inoue J, Kayaalp ME, Giusto JD, Nukuto K, Lesniak BP, Sprague AL, Irrgang JJ, Musahl V. Quadriceps tendon size does not affect postoperative strength recovery following quadriceps tendon anterior cruciate ligament reconstruction. J ISAKOS 2024; 9:100308. [PMID: 39154862 DOI: 10.1016/j.jisako.2024.100308] [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: 05/13/2024] [Revised: 08/09/2024] [Accepted: 08/10/2024] [Indexed: 08/20/2024]
Abstract
OBJECTIVE The influence of quadriceps tendon (QT) size on postoperative quadriceps strength following QT anterior cruciate ligament reconstruction (ACLR) is unclear. Therefore, this study aimed to determine the relationship between QT morphology and postoperative quadriceps strength recovery following primary ACLR using a QT autograft. METHODS Patients who underwent primary ACLR using QT autograft from 2014 to 2022 followed by a postoperative isometric strength measurement between 5 and 8 months were retrospectively reviewed. Using preoperative magnetic resonance imaging findings, the anterior-posterior (A-P) thickness, medial-lateral (M-L) width, and cross-sectional area (CSA) of the QT were measured. Postoperative residual CSA of QT was estimated based on the graft-harvest diameter. The quadriceps index (QI) was also calculated, which was determined by dividing the maximum isometric quadriceps torque on the involved side by the maximum quadriceps torque on the uninvolved side. Associations between the QI and QT morphology were assessed. Furthermore, multivariable logistic regression analysis with the addition of sex as a covariate was performed with the addition of each individual measure of QT morphology to determine the association with a QI ≥80%. RESULTS A total of 84 patients (mean age: 21.9 ± 7.3 years; 46 female) were included. Residual CSA showed a statistically significant positive correlation with the QI (r = 0.221, p = 0.043). There were no statistically significant correlations between QI and CSA, A-P thickness, or M-L width. Multivariable logistic analysis adjusting for sex demonstrated that each individual measure of QT morphology was not statistically significantly associated with a QI ≥80%. CONCLUSION A statistically significant correlation between measures of preoperative QT size and postoperative quadriceps strength were not detected in patients undergoing primary QT autograft ACLR. A smaller residual QT CSA based on QT harvest diameter was weakly associated with decreased quadriceps strength 5-8 months postoperatively, but this association was not independent of sex. Future studies examining the impact of QT morphology on quadriceps strength at longer follow-up intervals are needed. LEVEL OF EVIDENCE IV.
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Affiliation(s)
- Jumpei Inoue
- UPMC Freddie Fu Sports Medicine Center, Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, 3200 S Water St, Pittsburgh, PA, 15203, USA; Department of Orthopaedic Surgery, University of Pittsburgh, 3200 S Water St, Pittsburgh, PA, 15203, USA; Department of Orthopaedic Surgery, Nagoya City University Graduate School of Medical Science, 1 Kawasumi Mizuhocho, Mizuhoku, Nagoya, Aichi, 467-8602, Japan.
| | - M Enes Kayaalp
- UPMC Freddie Fu Sports Medicine Center, Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, 3200 S Water St, Pittsburgh, PA, 15203, USA; Department of Orthopaedic Surgery, University of Pittsburgh, 3200 S Water St, Pittsburgh, PA, 15203, USA; Department for Orthopaedics and Traumatology, Istanbul Kartal Dr. Lutfi Kirdar Training and Research Hospital, Cevizli, D-100 Güney Yanyol, Cevizli Mevkii No:47, 34865, Kartal/İstanbul, Turkey
| | - Joseph D Giusto
- UPMC Freddie Fu Sports Medicine Center, Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, 3200 S Water St, Pittsburgh, PA, 15203, USA; Department of Orthopaedic Surgery, University of Pittsburgh, 3200 S Water St, Pittsburgh, PA, 15203, USA
| | - Koji Nukuto
- UPMC Freddie Fu Sports Medicine Center, Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, 3200 S Water St, Pittsburgh, PA, 15203, USA; Department of Orthopaedic Surgery, University of Pittsburgh, 3200 S Water St, Pittsburgh, PA, 15203, USA; Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunokicho, Chuouku, Kobe, Hyogo, 650-0017, Japan
| | - Bryson P Lesniak
- UPMC Freddie Fu Sports Medicine Center, Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, 3200 S Water St, Pittsburgh, PA, 15203, USA; Department of Orthopaedic Surgery, University of Pittsburgh, 3200 S Water St, Pittsburgh, PA, 15203, USA
| | - Andrew L Sprague
- UPMC Freddie Fu Sports Medicine Center, Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, 3200 S Water St, Pittsburgh, PA, 15203, USA; Department of Physical Therapy, School of Health and Rehabilitation Sciences, University of Pittsburgh, Pittsburgh, PA, USA
| | - James J Irrgang
- UPMC Freddie Fu Sports Medicine Center, Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, 3200 S Water St, Pittsburgh, PA, 15203, USA; Department of Orthopaedic Surgery, University of Pittsburgh, 3200 S Water St, Pittsburgh, PA, 15203, USA; Department of Physical Therapy, School of Health and Rehabilitation Sciences, University of Pittsburgh, Pittsburgh, PA, USA
| | - Volker Musahl
- UPMC Freddie Fu Sports Medicine Center, Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, 3200 S Water St, Pittsburgh, PA, 15203, USA; Department of Orthopaedic Surgery, University of Pittsburgh, 3200 S Water St, Pittsburgh, PA, 15203, USA
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Herman ZJ, Greiner JJ, Kaarre J, Drain NP, Hughes JD, Lesniak BP, Irrgang JJ, Musahl V. 'Real world' clinical implementation of blood flow restriction therapy does not increase quadriceps strength after quadriceps tendon autograft ACL reconstruction. Knee Surg Sports Traumatol Arthrosc 2024; 32:1953-1960. [PMID: 38686588 DOI: 10.1002/ksa.12217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 01/02/2024] [Accepted: 04/09/2024] [Indexed: 05/02/2024]
Abstract
PURPOSE To retrospectively compare strength outcomes of individuals undergoing postoperative rehabilitation following quadriceps tendon (QT) autograft anterior cruciate ligament reconstruction (ACLR) with and without blood flow restriction therapy. METHODS A retrospective review of consecutive patients undergoing ACLR with QT autograft with a minimum of two quantitative postoperative isometric strength assessments via an electromechanical dynamometer (Biodex) was included. Demographics, surgical variables and strength measurement outcomes were compared between patients undergoing blood flow restriction therapy as part of postoperative rehabilitation versus those who did not. RESULTS Eighty-one (81) patients met the inclusion criteria. No differences were found in demographic and surgical characteristics between those who received blood flow restriction compared with those who did not. While both groups had improvements in quadriceps peak torque and limb symmetry index (LSI; defined as peak torque of the operative limb divided by the peak torque of the nonoperative limb) over the study period, the blood flow restriction group had significantly lower mean peak torque of the operative limb at first Biodex strength measurement (95.6 vs. 111.2 Nm; p = 0.03). Additionally, the blood flow restriction group had a significantly lower mean LSI than those with no blood flow restriction at the second Biodex measurement timepoint (81% vs. 90%; p = 0.02). No other significant differences were found between the strength outcomes measured. CONCLUSIONS Results of this study show that the 'real world' clinical implementation of blood flow restriction therapy to the postoperative rehabilitation protocol following QT autograft ACLR did not result in an increase in absolute or longitudinal changes in quadriceps strength measurements. A better understanding and standardisation of the use of blood flow restriction therapy in the rehabilitation setting is necessary to delineate the true effects of this modality on strength recovery after QT autograft ACLR. LEVEL OF EVIDENCE Level III.
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Affiliation(s)
- Zachary J Herman
- Department of Orthopaedic Surgery, UPMC Freddie Fu Sports Medicine Center, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | | | - Janina Kaarre
- Department of Orthopaedic Surgery, UPMC Freddie Fu Sports Medicine Center, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
- Department of Orthopaedics, Institute of Clinical Sciences, Sahlgrenska Academy University of Gothenburg, Gothenburg, Sweden
| | - Nicholas P Drain
- Department of Orthopaedic Surgery, UPMC Freddie Fu Sports Medicine Center, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Jonathan D Hughes
- Department of Orthopaedic Surgery, UPMC Freddie Fu Sports Medicine Center, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Bryson P Lesniak
- Department of Orthopaedic Surgery, UPMC Freddie Fu Sports Medicine Center, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - James J Irrgang
- Department of Orthopaedic Surgery, UPMC Freddie Fu Sports Medicine Center, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
- Department of Physical Therapy, University of Pittsburgh School of Health and Rehabilitation Sciences, Pittsburgh, Pennsylvania, USA
| | - Volker Musahl
- Department of Orthopaedic Surgery, UPMC Freddie Fu Sports Medicine Center, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
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Hogg JA, Barger NB, Bruce JR, White CC, Myer GD, Diekfuss JA. Improved Quadriceps Torque Production With Optimized Biofeedback in Patients After Anterior Cruciate Ligament Reconstruction. J Strength Cond Res 2024:00124278-990000000-00510. [PMID: 39074249 DOI: 10.1519/jsc.0000000000004883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/31/2024]
Abstract
Abstract
Hogg, JA, Barger, NB, Bruce, JR, White, CC, Myer, GD, and Diekfuss, JA. Improved quadriceps torque production with optimized biofeedback in patients after anterior cruciate ligament reconstruction. J Strength Cond Res XX(X): 000–000, 2024—Optimizing performance through intrinsic motivation and attention for learning: prevention rehabilitation exercise play (OPTIMAL PREP) training strategies incorporate motor learning principles to enhance movement acquisition and retention. We aimed to use OPTIMAL PREP biofeedback to evaluate its potential to improve quadriceps and hamstring torque production in patients with anterior cruciate ligament reconstruction (ACL-R). Thirteen subjects 23 ± 19 months post ACL-R completed 5 concentric quadriceps/hamstrings repetitions on an isokinetic dynamometer for each limb and counterbalanced condition at 60°·s−1. For the control condition, subjects were instructed to perform the exercise “as hard and fast as possible.” For the OPTIMAL PREP condition, subjects were additionally told that “Research shows that if you focus on moving the line on the screen (external focus) you will exhibit greater quadriceps output (enhanced expectancies)” and were given the choice of graphical representation for the biofeedback (autonomy support). Quadriceps and hamstrings peak torque, rate of force development, and torque-angle waveforms were analyzed with 2 × 2 RMANOVAs (a priori
>0.06). The ACL-R limb demonstrated increased quadriceps peak torque in the OPTIMAL PREP condition than in the control condition (
= 0.13, interaction p = 0.21, pairwise Cohen's d = 0.63). Anterior cruciate ligament reconstruction limb quadriceps deficits remained near terminal extension (14–45°; peak Cohen's d = 0.57, p < 0.001). For hamstrings peak torque, we observed moderate effects for condition (OPTIMAL PREP greater;
= 0.10, p = 0.29) and limb (uninvolved greater;
= 0.13, p = 0.22). Easily implementable OPTIMAL PREP training strategies improved ACL-R limb quadriceps torque production, resulting in between-limb parity. However, asymmetries still existed near terminal extension.
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Affiliation(s)
- Jennifer A Hogg
- Department of Health and Human Performance, The University of Tennessee Chattanooga, Chattanooga, Tennessee
| | - Nathan B Barger
- Department of Athletics, The University of Tennessee Chattanooga, Chattanooga, Tennessee
| | - Jeremy R Bruce
- Department of Orthopaedic Surgery, University of Tennessee College of Medicine, Chattanooga, Tennessee
| | - Charles C White
- Department of Orthopaedic Surgery, University of Tennessee College of Medicine, Chattanooga, Tennessee
| | - Gregory D Myer
- Emory Sports Performance and Research Center (SPARC), Flowery Branch, Georgia
- Emory Sports Medicine Center, Atlanta, Georgia
- Department of Orthopaedics, Emory University School of Medicine, Atlanta, Georgia
- The Micheli Center for Sports Injury Prevention, Waltham, Massachusetts
- Youth Physical Development Center, Cardiff Metropolitan University, Wales, United Kingdom; and
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology & Emory University, Atlanta, Georgia
| | - Jed A Diekfuss
- Emory Sports Performance and Research Center (SPARC), Flowery Branch, Georgia
- Emory Sports Medicine Center, Atlanta, Georgia
- Department of Orthopaedics, Emory University School of Medicine, Atlanta, Georgia
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Knurr KA, Cobian DG, Kliethermes SA, Joachim MR, Heiderscheit BC. Effect of Running Speed on Knee Biomechanics in Collegiate Athletes Following Anterior Cruciate Ligament Reconstruction. Med Sci Sports Exerc 2024; 56:1233-1241. [PMID: 38377013 PMCID: PMC11178460 DOI: 10.1249/mss.0000000000003409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2024]
Abstract
INTRODUCTION Athletes after anterior cruciate ligament reconstruction (ACLR) demonstrate altered surgical knee running kinematics and kinetics compared with the nonsurgical limb and healthy controls. The effect of running speed on biomechanics has not been formally assessed in athletes post-ACLR. The purpose of this study was to characterize how knee biomechanics change with running speed between 3.5-7 (EARLY) and 8-13 (LATE) months post-ACLR. METHODS Fifty-five Division I collegiate athletes post-ACLR completed running analyses (EARLY: n = 40, LATE: n = 41, both: n = 26) at 2.68, 2.95, 3.35, 3.80, and 4.47 m·s -1 . Linear mixed-effects models assessed the influence of limb, speed, time post-ACLR, and their interactions on knee kinematics and kinetics. RESULTS A significant limb-speed interaction was detected for peak knee flexion, knee flexion excursion, and rate of knee extensor moment ( P < 0.02), controlling for time. From 3.35 to 4.47 m·s -1 , knee flexion excursion decreased by -2.3° (95% confidence interval, -3.6 to -1.0) in the nonsurgical limb and -1.0° (95% confidence interval, -2.3 to -0.3) in the surgical limb. Peak vertical ground reaction force, peak knee extensor moment, and knee negative work increased similarly with speed for both limbs ( P < 0.002). A significant limb-time interaction was detected for all variables ( P < 0.001). Accounting for running speed, improvements in all surgical limb biomechanics were observed from EARLY to LATE ( P < 0.001), except for knee flexion at initial contact ( P = 0.12), but between-limb differences remained ( P < 0.001). CONCLUSIONS Surgical and nonsurgical knee biomechanics increase similarly with speed in collegiate athletes at EARLY and LATE, with the exception of peak knee flexion, knee flexion excursion, and rate of knee extensor moment. Surgical knee biomechanics improved from EARLY and LATE, but significant between-limb differences persisted.
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Affiliation(s)
- Keith A. Knurr
- Department of Orthopedics & Rehabilitation, University of Wisconsin-Madison, Madison, WI
- Badger Athletic Performance Program, University of Wisconsin-Madison, Madison, WI
- Department of Medicine – Division of Geriatrics, University of Wisconsin-Madison, Madison, WI
| | - Daniel G. Cobian
- Department of Orthopedics & Rehabilitation, University of Wisconsin-Madison, Madison, WI
- Badger Athletic Performance Program, University of Wisconsin-Madison, Madison, WI
| | - Stephanie A. Kliethermes
- Department of Orthopedics & Rehabilitation, University of Wisconsin-Madison, Madison, WI
- Badger Athletic Performance Program, University of Wisconsin-Madison, Madison, WI
| | - Mikel R. Joachim
- Department of Orthopedics & Rehabilitation, University of Wisconsin-Madison, Madison, WI
- Badger Athletic Performance Program, University of Wisconsin-Madison, Madison, WI
| | - Bryan C. Heiderscheit
- Department of Orthopedics & Rehabilitation, University of Wisconsin-Madison, Madison, WI
- Badger Athletic Performance Program, University of Wisconsin-Madison, Madison, WI
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI
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Cobian DG, Oppenheim ZR, Roehl TJ, Joachim MR, Heiderscheit BC. Knee Extensor Torque Steadiness and Quadriceps Activation Variability in Collegiate Athletes 4, 6, and 12 Months After ACL Reconstruction. Orthop J Sports Med 2024; 12:23259671241253843. [PMID: 38867919 PMCID: PMC11168251 DOI: 10.1177/23259671241253843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 11/16/2023] [Indexed: 06/14/2024] Open
Abstract
Background Quadriceps performance after anterior cruciate ligament reconstruction (ACLR) is typically characterized by peak force/torque, but the ability to generate consistent knee extensor torque may be clinically meaningful. Purpose/Hypothesis The purpose of this study was to evaluate knee extensor torque steadiness and quadriceps activation variability in collegiate athletes 4 to 12 months after ACLR. It was hypothesized that between-limb asymmetries in torque steadiness and activation variability would be observed and that steadiness would be associated with activation variability and peak knee extensor torque symmetry. Study Design Case-control study; Level of evidence, 3. Methods A total of 30 National Collegiate Athletic Association Division I athletes completed maximal voluntary isometric contractions 4, 6, and 12 months after ACLR. Torque and surface electromyography of the superficial quadriceps were recorded. Torque steadiness was calculated as the mean difference between initial and low-pass filtered torque signals and was expressed as a percentage of peak torque. Quadriceps activation variability was calculated similarly and was expressed as a percentage of peak electromyography. Linear mixed models were used to assess change in torque steadiness and activation variability over time. Associations between torque steadiness of the operated limb, activation variability, and quadriceps strength symmetry were evaluated using the Spearman correlation coefficient. Results Limb-by-time interactions were detected for torque steadiness and activation variability (P < .001), with reductions (improvements) in limb steadiness and activation variability observed with increasing time since surgery. Between-limb differences in torque steadiness and activation variability were observed at 4 and 6 months postoperatively (P < .05). Significant associations between operated limb torque steadiness and quadriceps activation variability were observed at 4 months (P < .001) and 6 months (P < .01). Torque steadiness of the operated limb was associated with peak knee extensor torque symmetry at 4 months (r S = -0.49; P < .01) and 6 months (r S = -0.49; P < .01). Conclusion In collegiate athletes, impaired knee extensor torque steadiness of the operated limb and associated abnormal quadriceps activation patterns were observed 4 to 12 months after ACLR, and the consistency of knee extensor torque production was associated with greater quadriceps strength asymmetries, particularly 4 to 6 months after surgery. Operated limb torque steadiness and activation variability improved from 4 to 12 months after ACLR. Clinical assessment of knee extensor torque steadiness after ACLR may improve prognosis and specificity of rehabilitation efforts.
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Affiliation(s)
- Daniel G. Cobian
- Orthopedics and Rehabilitation, University of Wisconsin–Madison, Madison, Wisconsin, USA
- Badger Athletic Performance Program, University of Wisconsin–Madison, Madison, Wisconsin, USA
- Doctor of Physical Therapy Program, University of Wisconsin–Madison, Madison, Wisconsin, USA
| | - Zachary R. Oppenheim
- Badger Athletic Performance Program, University of Wisconsin–Madison, Madison, Wisconsin, USA
- Department of Biomedical Engineering, University of Wisconsin–Madison, Madison, Wisconsin, USA
| | - Tyler J. Roehl
- Badger Athletic Performance Program, University of Wisconsin–Madison, Madison, Wisconsin, USA
- Doctor of Physical Therapy Program, University of Wisconsin–Madison, Madison, Wisconsin, USA
| | - Mikel R. Joachim
- Orthopedics and Rehabilitation, University of Wisconsin–Madison, Madison, Wisconsin, USA
- Badger Athletic Performance Program, University of Wisconsin–Madison, Madison, Wisconsin, USA
| | - Bryan C. Heiderscheit
- Orthopedics and Rehabilitation, University of Wisconsin–Madison, Madison, Wisconsin, USA
- Badger Athletic Performance Program, University of Wisconsin–Madison, Madison, Wisconsin, USA
- Department of Biomedical Engineering, University of Wisconsin–Madison, Madison, Wisconsin, USA
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Cobian DG, Knurr KA, Joachim MR, Bednarek AL, Broderick AM, Heiderscheit BC. Does It Matter? Isometric or Isokinetic Assessment of Quadriceps Strength Symmetry 9 Months After ACLR in Collegiate Athletes. Sports Health 2024:19417381241247819. [PMID: 38742396 DOI: 10.1177/19417381241247819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2024] Open
Abstract
BACKGROUND Greater quadriceps strength symmetry is associated with better outcomes after anterior cruciate ligament reconstruction (ACLR). Isometric and isokinetic assessments of quadriceps strength inform therapeutic exercise prescription and return-to-sport decisions. It is unclear whether isometric and isokinetic measures provide similar information post-ACLR. HYPOTHESIS Quadriceps strength symmetry is similar between isometric and isokinetic assessments. Isokinetic and isometric strength symmetries have similar associations to functional knee kinetics and self-reported knee function. STUDY DESIGN Cross-sectional study. LEVEL OF EVIDENCE Level 3. METHODS NCAA Division I athletes (N = 35), 8.9 ± 2.5 months post-ACLR completed isometric and isokinetic quadriceps strength assessments, countermovement jumps (CMJs), and treadmill running. Self-reported knee function was assessed using the International Knee Documentation Committee Subjective Knee Form (IKDC). Agreement between isometric and isokinetic strength symmetry was assessed using Bland-Altman analysis, with associations to functional knee kinetics and IKDC assessed using Pearson correlations and linear regressions. RESULTS Mean difference in quadriceps strength symmetry between isokinetic and isometric assessments was 1.0% (95% limits of agreement of -25.1% to 23.0%). Functional knee kinetics during running and CMJ were moderately to strongly associated with isometric strength symmetry (r = 0.64-0.80, P < 0.01) and moderately associated with isokinetic strength symmetry (r = 0.41-0.58, P < 0.01). IKDC scores were weakly to moderately associated with isometric (r = 0.39, P = 0.02) and isokinetic (r = 0.49, P < 0.01) strength symmetry. CONCLUSION Isokinetic and isometric assessments of quadriceps strength symmetry in collegiate athletes 9 months post-ACLR demonstrated strong agreement. Quadriceps strength symmetry is associated with functional knee kinetic symmetry post-ACLR. CLINICAL RELEVANCE Considerable individual variation suggests mode of contraction should be consistent throughout postoperative assessment. Isometric strength symmetry may be a better indicator of functional knee kinetic symmetry, while isokinetic strength symmetry may be associated more closely with patient-reported outcomes.
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Affiliation(s)
- Daniel G Cobian
- Department of Orthopedics and Rehabilitation, University of Wisconsin-Madison, Madison, Wisconsin
- Badger Athletic Performance Program, University of Wisconsin-Madison, Madison, Wisconsin
- Doctor of Physical Therapy Program, University of Wisconsin-Madison, Madison, Wisconsin
- Sports Rehabilitation, University of Wisconsin Hospital and Clinics, Madison, Wisconsin
| | - Keith A Knurr
- Department of Orthopedics and Rehabilitation, University of Wisconsin-Madison, Madison, Wisconsin
- Badger Athletic Performance Program, University of Wisconsin-Madison, Madison, Wisconsin
- Doctor of Physical Therapy Program, University of Wisconsin-Madison, Madison, Wisconsin
- Department of Medicine, Division of Geriatrics, University of Wisconsin-Madison, Madison, Wisconsin
| | - Mikel R Joachim
- Department of Orthopedics and Rehabilitation, University of Wisconsin-Madison, Madison, Wisconsin
- Badger Athletic Performance Program, University of Wisconsin-Madison, Madison, Wisconsin
| | - Amy L Bednarek
- Sports Rehabilitation, University of Wisconsin Hospital and Clinics, Madison, Wisconsin
| | - Andrew M Broderick
- Sports Rehabilitation, University of Wisconsin Hospital and Clinics, Madison, Wisconsin
| | - Bryan C Heiderscheit
- Department of Orthopedics and Rehabilitation, University of Wisconsin-Madison, Madison, Wisconsin
- Badger Athletic Performance Program, University of Wisconsin-Madison, Madison, Wisconsin
- Sports Rehabilitation, University of Wisconsin Hospital and Clinics, Madison, Wisconsin
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, Wisconsin
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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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Holmgren D, Noory S, Moström E, Grindem H, Stålman A, Wörner T. Weaker Quadriceps Muscle Strength With a Quadriceps Tendon Graft Compared With a Patellar or Hamstring Tendon Graft at 7 Months After Anterior Cruciate Ligament Reconstruction. Am J Sports Med 2024; 52:69-76. [PMID: 38164665 PMCID: PMC10762885 DOI: 10.1177/03635465231209442] [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: 03/15/2023] [Accepted: 09/06/2023] [Indexed: 01/03/2024]
Abstract
BACKGROUND Impaired quadriceps muscle strength after anterior cruciate ligament reconstruction (ACLR) is associated with worse clinical outcomes and a risk of reinjuries. Yet, we know little about quadriceps muscle strength in patients reconstructed with a quadriceps tendon (QT) graft, which is increasing in popularity worldwide. PURPOSE To describe and compare isokinetic quadriceps strength in patients undergoing ACLR with a QT, hamstring tendon (HT), or bone-patellar tendon-bone (BPTB) autograft. STUDY DESIGN Cross-sectional study; Level of evidence, 3. METHODS We included patients with QT grafts (n = 104) and matched them to patients with HT (n = 104) and BPTB (n = 104) grafts based on age, sex, and associated meniscal surgery. Data were collected through clinical strength testing at a mean of 7 ± 1 months postoperatively. Isokinetic strength was measured at 90 deg/s, and quadriceps strength was expressed as the limb symmetry index (LSI) for peak torque, total work, torque at 30° of knee flexion, and time to peak torque. RESULTS Patients with QT grafts had the most impaired isokinetic quadriceps strength, with the LSI ranging between 67.5% and 75.1%, followed by those with BPTB grafts (74.4%-81.5%) and HT grafts (84.0%-89.0%). Patients with QT grafts had a significantly lower LSI for all variables compared with patients with HT grafts (mean difference: peak torque: -17.4% [95% CI, -21.7 to -13.2], P < .001; total work: -15.9% [95% CI, -20.6 to -11.1], P < .001; torque at 30° of knee flexion: -8.8% [95% CI, -14.7 to -2.9], P = .001; time to peak torque: -17.7% [95% CI, -25.8 to -9.6], P < .001). Compared with patients with BPTB grafts, patients with QT grafts had a significantly lower LSI for all variables (mean difference: peak torque: -6.9% [95% CI, -11.2 to -2.7], P < .001; total work: -7.7% [95% CI, -12.4 to -2.9], P < .001; torque at 30° of knee flexion: -6.3% [95% CI, -12.2 to -0.5], P = .03; time to peak torque: -8.8% [95% CI, -16.9 to -0.7], P = .03). None of the graft groups reached a mean LSI of >90% for peak torque (QT: 67.5% [95% CI, 64.8-70.1]; HT: 84.9% [95% CI, 82.4-87.4]; BPTB: 74.4% [95% CI, 72.0-76.9]). CONCLUSION At 7 months after ACLR, patients with QT grafts had significantly worse isokinetic quadriceps strength than patients with HT and BPTB grafts. None of the 3 graft groups reached a mean LSI of >90% in quadriceps strength.
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Affiliation(s)
- David Holmgren
- Department of Molecular Medicine and Surgery, Stockholm Sports Trauma Research Center, Karolinska Institutet, Stockholm, Sweden
- Capio Artro Clinic, FIFA Medical Centre of Excellence, Sophiahemmet Hospital, Stockholm, Sweden
| | - Shiba Noory
- Department of Molecular Medicine and Surgery, Stockholm Sports Trauma Research Center, Karolinska Institutet, Stockholm, Sweden
| | - Eva Moström
- Department of Molecular Medicine and Surgery, Stockholm Sports Trauma Research Center, Karolinska Institutet, Stockholm, Sweden
- Capio Artro Clinic, FIFA Medical Centre of Excellence, Sophiahemmet Hospital, Stockholm, Sweden
| | - Hege Grindem
- Department of Molecular Medicine and Surgery, Stockholm Sports Trauma Research Center, Karolinska Institutet, Stockholm, Sweden
- Oslo Sports Trauma Research Center, Norwegian School of Sport Sciences, Oslo, Norway
| | - Anders Stålman
- Department of Molecular Medicine and Surgery, Stockholm Sports Trauma Research Center, Karolinska Institutet, Stockholm, Sweden
- Capio Artro Clinic, FIFA Medical Centre of Excellence, Sophiahemmet Hospital, Stockholm, Sweden
| | - Tobias Wörner
- Department of Molecular Medicine and Surgery, Stockholm Sports Trauma Research Center, Karolinska Institutet, Stockholm, Sweden
- Capio Artro Clinic, FIFA Medical Centre of Excellence, Sophiahemmet Hospital, Stockholm, Sweden
- Department of Health Sciences, Lund University, Lund, Sweden
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Ito N, Sigurðsson HB, Snyder-Mackler L, Grävare Silbernagel K. Time to treat the tendon rupture induced by surgery: early hypertrophy of the patellar tendon graft site predicts strong quadriceps after ACLR with bone-patellar tendon-bone autograft. Knee Surg Sports Traumatol Arthrosc 2023; 31:5791-5798. [PMID: 37934286 PMCID: PMC10842920 DOI: 10.1007/s00167-023-07657-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 10/25/2023] [Indexed: 11/08/2023]
Abstract
PURPOSE Quadriceps dysfunction is ubiquitous after anterior cruciate ligament reconstruction, especially when using bone-patellar tendon-bone (BPTB) autografts. The role of patellar tendon hypertrophy after graft harvest on knee extensor strength is unknown. The purpose of this study was to determine the predictive ability of patellar tendon (PT) and quadriceps muscle (Quad) cross-sectional area (CSA) on knee extensor strength 1-2 months after ACLR using BPTB autografts. METHODS This is a cross-sectional analysis of a cohort 1-2 months after ACLR using BPTB autograft. Peak knee extensor torque, and PT and Quad CSA measured using ultrasound imaging, were collected in 13 males and 14 females. Simple linear regressions compared quadriceps strength index (QI) against limb symmetry index (LSI) in PT and Quad CSA. Multiple linear regressions with sequential model comparisons predicting peak knee extensor torque were performed for each limb. The base model included demographics. Quad CSA was added in the first model, then PT CSA was added in the second model. RESULTS Both PT (p < 0.001, R2 = 0.693) and Quadriceps CSA (p = 0.013, R2 = 0.223) LSI had a positive linear relationship with QI. In the involved limb, addition of PT CSA significantly improved the model (R2 = 0.781, ΔR2 = 0.211, p for ΔR2 < 0.001). In the uninvolved limb, the addition of Quad CSA improved the model, but the addition of PT CSA did not. CONCLUSION PT LSI was more predictive of QI than Quad CSA LSI. Involved limb PT CSA mattered more in predicting peak knee extensor torque than did Quad CSA, but in the uninvolved limb, Quad CSA was the most important predictor of peak knee extensor torque. Graft site patellar tendon hypertrophy is key for strong quadriceps early after ACLR. Early targeted loading via exercise to promote healing of the graft site patellar tendon may bring patients a step closer to winning their battle against quadriceps dysfunction. LEVEL OF EVIDENCE Level I.
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Affiliation(s)
- Naoaki Ito
- Biomechanics and Movement Science Program, University of Delaware, 540 S. College Ave, Newark, DE, 19713, USA
- Department of Physical Therapy, University of Delaware, Newark, DE, USA
| | | | - Lynn Snyder-Mackler
- Biomechanics and Movement Science Program, University of Delaware, 540 S. College Ave, Newark, DE, 19713, USA
- Department of Physical Therapy, University of Delaware, Newark, DE, USA
| | - Karin Grävare Silbernagel
- Biomechanics and Movement Science Program, University of Delaware, 540 S. College Ave, Newark, DE, 19713, USA.
- Department of Physical Therapy, University of Delaware, Newark, DE, USA.
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Sengoku T, Nakase J, Mizuno Y, Kanayama T, Ishida Y, Yanatori Y, Arima Y. Limited preoperative knee extension in anterior cruciate ligament reconstruction using a hamstring tendon affects improvement of postoperative knee extensor strength. Knee Surg Sports Traumatol Arthrosc 2023; 31:5621-5628. [PMID: 37857706 DOI: 10.1007/s00167-023-07620-8] [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: 06/23/2023] [Accepted: 10/02/2023] [Indexed: 10/21/2023]
Abstract
PURPOSE This study aimed to determine the factors affecting knee extensor strength 6 months after anterior cruciate ligament (ACL) reconstruction using autograft hamstring tendon. METHODS 144 patients who could undergo regular follow-up after ACL reconstruction were divided into 2 groups: those with greater than 90% (Group A: n = 95) and less than 85% (Group B: n = 49) isokinetic knee contraction at 60°/s 6 months post-ACL reconstruction. Basic information, injury status, limited preoperative knee extension, and knee extensor strength at 3 and 6 months postoperatively were compared between the groups. Multivariate logistic analysis was performed and included variables that showed statistically significant differences between the groups in the univariate analysis. In addition, the cut-off value for the limb symmetry index (LSI) at 3 months postoperatively needed to exceed an LSI of 90% at 6 months postoperatively was calculated using the receiver operating characteristics curve. RESULTS Age, preoperative waiting period, limited preoperative knee extension, and knee extensor strength at 3 months postoperatively were significantly different between the two groups. The multivariate logistic analysis showed that all the variables affected the improvement in knee extensor strength at 6 months postoperatively. Limited preoperative knee extension was the most significant factor (odds ratio: 15.1, 95% confidence interval: 2.57-118.56, p < 0.01). The LSI cut-off value at 3 months postoperatively was 72.0%. CONCLUSION Key factors in achieving the necessary knee extensor strength criteria for return to sports at 6 months post-ACL reconstruction include addressing limited preoperative knee extension and achieving an LSI ≥ 72% in knee extensor strength at 3 months postoperatively. LEVEL OF EVIDENCE Level III.
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Affiliation(s)
- Takuya Sengoku
- Section of Rehabilitation, Kanazawa University Hospital, 13-1 Takaramachi, Kanazawa, 920-8641, Japan
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, 13-1 Takaramachi, Kanazawa, 920-8641, Japan
| | - Junsuke Nakase
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, 13-1 Takaramachi, Kanazawa, 920-8641, Japan.
| | - Yushin Mizuno
- Section of Rehabilitation, Kanazawa University Hospital, 13-1 Takaramachi, Kanazawa, 920-8641, Japan
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, 13-1 Takaramachi, Kanazawa, 920-8641, Japan
| | - Tomoyuki Kanayama
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, 13-1 Takaramachi, Kanazawa, 920-8641, Japan
| | - Yoshihiro Ishida
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, 13-1 Takaramachi, Kanazawa, 920-8641, Japan
| | - Yusuke Yanatori
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, 13-1 Takaramachi, Kanazawa, 920-8641, Japan
| | - Yu Arima
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, 13-1 Takaramachi, Kanazawa, 920-8641, Japan
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11
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Sengoku T, Nakase J, Mizuno Y, Yoshimizu R, Kanayama T, Yanatori Y, Tsuchiya H. Outcome comparison of femoral nerve block and adductor canal block during anterior cruciate ligament reconstruction: adductor canal block may cause an unexpected decrease in knee flexor strength at 6 months postoperatively. Arch Orthop Trauma Surg 2023; 143:6305-6313. [PMID: 37432497 DOI: 10.1007/s00402-023-04980-1] [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: 10/05/2022] [Accepted: 07/02/2023] [Indexed: 07/12/2023]
Abstract
INTRODUCTION Peripheral nerve blocks are frequently used in anterior cruciate ligament (ACL) reconstruction. While femoral nerve block (FNB) has been associated with knee extensor strength reduction in the early postoperative period, no consistent view of knee extensor strength several months after ACL reconstruction exists. This study aimed to compare the impact of intraoperative FNB and adductor canal block (ACB) during ACL reconstruction on knee extensor strength at 3 and 6 months postoperatively. MATERIALS AND METHODS This retrospective study included 108 patients divided into FNB (70 patients) and ACB (38 patients) groups based on their postoperative pain management methods. Knee joint extensor and flexor strength were measured at 3 and 6 months postoperatively, using BIODEX at angular velocities of 60°/s and 180°/s. From these results, peak torque, limb symmetry index (LSI), peak knee extensor torque (time to peak torque and angle of peak torque), hamstrings-to-quadriceps (HQ) ratio, and amount of work were computed for two-group comparison. RESULTS There were no statistically significant differences in peak torque, LSI of knee extensor strength, HQ ratio, and amount of work between the two groups. However, maximum knee extension torque at 60°/s occurred significantly later in the FNB than in the ACB group at 3 months postoperatively. Additionally, the LSI of the knee flexor at 6 months postoperatively was significantly lower in the ACB group. CONCLUSIONS In ACL reconstruction, FNB may delay the time to peak torque for knee extension at 3 months postoperatively, which is likely to improve over the treatment course. In contrast, ACB may result in unexpected loss of knee flexor strength at 6 months postoperatively and should be considered with caution. LEVEL OF EVIDENCE Level III.
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Affiliation(s)
- Takuya Sengoku
- Section of Rehabilitation, Kanazawa University Hospital, 13-1 Takaramachi, Kanazawa, 920-8641, Japan
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, 13-1 Takaramachi, Kanazawa, 920-8641, Japan
| | - Junsuke Nakase
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, 13-1 Takaramachi, Kanazawa, 920-8641, Japan.
| | - Yushin Mizuno
- Section of Rehabilitation, Kanazawa University Hospital, 13-1 Takaramachi, Kanazawa, 920-8641, Japan
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, 13-1 Takaramachi, Kanazawa, 920-8641, Japan
| | - Rikuto Yoshimizu
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, 13-1 Takaramachi, Kanazawa, 920-8641, Japan
| | - Tomoyuki Kanayama
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, 13-1 Takaramachi, Kanazawa, 920-8641, Japan
| | - Yusuke Yanatori
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, 13-1 Takaramachi, Kanazawa, 920-8641, Japan
| | - Hiroyuki Tsuchiya
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, 13-1 Takaramachi, Kanazawa, 920-8641, Japan
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Sroufe MD, Sumpter AE, Thompson XD, Moran TE, Bruce Leicht AS, Diduch DR, Brockmeier SF, Miller MD, Gwathmey FW, Werner BC, Pietrosimone B, Hart JM. Comparison of Patient-Reported Outcomes, Strength, and Functional Performance in Primary Versus Revision Anterior Cruciate Ligament Reconstruction. Am J Sports Med 2023; 51:2057-2063. [PMID: 37212572 DOI: 10.1177/03635465231169535] [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: 05/23/2023]
Abstract
BACKGROUND Clinical outcomes after revision anterior cruciate ligament reconstruction (ACLR) are not well understood. HYPOTHESIS Patients undergoing revision ACLR would demonstrate worse patient-reported outcomes and worse limb symmetry compared with a cohort undergoing primary ACLR. STUDY DESIGN Cohort study; Level of evidence, 3. METHODS 672 participants (373 with primary ACLR, 111 with revision ACLR, and 188 uninjured) completed functional testing at a single academic medical center. Descriptive information, operative variables, and patient-reported outcomes (International Knee Documentation Committee score, Knee injury and Osteoarthritis Outcome Score, and Tegner Activity Scale score) were assessed for each patient. Quadriceps and hamstring strength tests were conducted using a Biodex System 3 Dynamometer. Single-leg hop for distance, triple hop test, and the 6-m timed hop test were also assessed. Limb symmetry index (LSI) between the ACLR limb and contralateral limb was calculated for strength and hop testing. Normalized peak torque (N·m/kg) was calculated for strength testing. RESULTS No differences were found in group characteristics, excluding body mass (P < .001), or in patient-reported outcomes. There were no interactions between revision status, graft type, and sex. Knee extension LSI was inferior (P < .001) in participants who had undergone primary (73.0% ± 15.0%) and revision (77.2% ± 19.1%) ACLR compared with healthy, uninjured participants (98.8% ± 10.4%). Knee flexion LSI was inferior (P = .04) in the primary group (97.4% ± 18.4%) compared with the revision group (101.9% ± 18.5%). Difference in knee flexion LSI between the uninjured and primary groups, as well as between the uninjured and revision groups, did not reach statistical significance. Hop LSI outcomes were significantly different across all groups (P < .001). Between-group differences in extension in the involved limb (P < .001) were noted, as the uninjured group exhibited stronger knee extension (2.16 ± 0.46 N·m/kg) than the primary group (1.67 ± 0.47 N·m/kg) and the revision group (1.78 ± 0.48 N·m/kg). As well, differences in flexion in the involved limb (P = .01) were found, as the revision group exhibited stronger knee flexion (1.06 ± 0.25 N·m/kg) than the primary group (0.97 ± 0.29 N·m/kg) and the uninjured group (0.98 ± 0.24 N·m/kg). CONCLUSION At 7 months postoperatively, patients who had undergone revision ACLR did not demonstrate inferior patient-reported outcomes, limb symmetry, strength, or functional performance compared with patients who had undergone primary ACLR. Patients who had undergone revision ACLR exhibited greater strength and LSI than their counterparts with primary ACLR, but these parameters were still inferior to those of uninjured controls.
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Affiliation(s)
- Madison D Sroufe
- Department of Orthopaedic Surgery, University of Virginia, Charlottesville, Virginia, USA
| | - Anna E Sumpter
- Department of Orthopaedic Surgery, University of Virginia, Charlottesville, Virginia, USA
| | - Xavier D Thompson
- Department of Kinesiology, University of Virginia, Charlottesville, Virginia, USA
| | - Thomas E Moran
- Department of Orthopaedic Surgery, University of Virginia, Charlottesville, Virginia, USA
| | | | - David R Diduch
- Department of Orthopaedic Surgery, University of Virginia, Charlottesville, Virginia, USA
| | - Stephen F Brockmeier
- Department of Orthopaedic Surgery, University of Virginia, Charlottesville, Virginia, USA
| | - Mark D Miller
- Department of Orthopaedic Surgery, University of Virginia, Charlottesville, Virginia, USA
| | - F Winston Gwathmey
- Department of Orthopaedic Surgery, University of Virginia, Charlottesville, Virginia, USA
| | - Brian C Werner
- Department of Orthopaedic Surgery, University of Virginia, Charlottesville, Virginia, USA
| | - Brian Pietrosimone
- Department of Exercise and Sport Science, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Joe M Hart
- Department of Orthopaedics, University of North Carolina, Chapel Hill, North Carolina, USA
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Marx RG, Hsu J, Fink C, Eriksson K, Vincent A, van der Merwe WM. Graft choices for paediatric anterior cruciate ligament reconstruction: State of the art. J ISAKOS 2023; 8:145-152. [PMID: 36646171 DOI: 10.1016/j.jisako.2023.01.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 11/15/2022] [Accepted: 01/03/2023] [Indexed: 01/15/2023]
Abstract
The paediatric population is at particularly high risk for anterior cruciate ligament (ACL) injuries due to high rates of sports participation. Other risk factors for ACL injuries in children include but are not limited to being female, generalised ligamentous laxity, a high body mass index (BMI), and poor neuromuscular control. ACL reconstruction (ACLR) is commonly done to treat ACL injuries and allow for return to sports and daily activities. ACL repair is another option with ongoing techniques being developed. The high rates of graft failure in children reported in recent publications on ACL repair are very concerning. Special consideration must be taken in ACLR in the skeletally immature patient due to the risk of growth-related complications, such as limb deformity or growth arrest, that can arise from drilling across or disrupting the physis. Graft choices for paediatric ACLR include iliotibial band (ITB) over the top and over the front, hamstring autograft, bone patellar tendon bone (BTB) autograft, quadriceps tendon autograft, and allograft. Factors for each graft choice to consider include graft size, graft failure rates, donor site morbidity, requirement for bony tunnels, the post-op rehabilitation process, and return to sport outcomes. Each graft has its benefits and disadvantages for the individual patient, depending on age, skeletal maturity, and goals for recovery. Lateral extra-articular tenodesis (LET) is another option to consider with paediatric ACLR because LET has been shown to decrease the re-rupture rate in adult ACLR. After surgery, patient follow-up until at least the growth plates are closed is important. This article aims to provide an overview and comparison of the various graft types to aid in the graft choice decision making process for paediatric ACLR.
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Affiliation(s)
- Robert G Marx
- Sports Medicine Institute, Hospital for Special Surgery, New York, 10021, USA; Department of Orthopaedic Surgery, Weill Cornell Medical College, New York, 10021, USA.
| | - Janet Hsu
- Sports Medicine Institute, Hospital for Special Surgery, New York, 10021, USA
| | - Christian Fink
- Gelenkpunkt-Sports and Joint Surgery, Innsbruck, 6020, Austria; Research Unit for Orthopaedic Sports Medicine and Injury Prevention (OSMI), UMIT, Hall in Tirol, 6060, Austria
| | - Karl Eriksson
- Orthopaedic Surgery, Stockholm South Hospital, Karolinska Institutet, Stockholm, 17177, Sweden
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Ishida T, Samukawa M, Koshino Y, Ino T, Kasahara S, Tohyama H. Interlimb Asymmetry in Knee Extension Moment During Double-Leg Squatting Is Associated With Persistent Quadriceps Weakness After ACL Reconstruction. Orthop J Sports Med 2023; 11:23259671231182105. [PMID: 37441507 PMCID: PMC10334007 DOI: 10.1177/23259671231182105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 03/31/2023] [Indexed: 07/15/2023] Open
Abstract
Background Although double-leg squatting is less dynamic and places less demand on the quadriceps compared with landing tasks, the relationship between double-leg squatting biomechanics and persistent quadriceps weakness after anterior cruciate ligament reconstruction (ACLR) is unknown. Purpose To clarify the relationships between asymmetries in quadriceps strength and lower limb biomechanics during double-leg squatting >1 year after ACLR. Study Design Controlled laboratory study. Methods A total of 26 participants (5.5 ± 3.8 years after ACLR) were enrolled. The limb symmetry index (LSI) of isokinetic quadriceps strength was used to divide participants into the high-quadriceps (HQ) group (LSI ≥90%; n = 18) and the low-quadriceps (LQ) group (LSI <90%; n = 8). The knee, hip, and ankle extension moment (relative to body weight and support moment [sum of knee, hip, and ankle moments]) and vertical ground-reaction force during double-leg squatting were analyzed using 3-dimensional motion analysis. The association of quadriceps strength and biomechanical variables was tested using 2-way analysis of variance and univariate regression analysis. Results A significant group-by-limb interaction was found for the peak knee extension moment and the ratios of knee and hip extension moment to support moment (P < .001, P = .015 and P < .001, respectively). The LQ group showed a significantly smaller peak knee extension moment and knee to support moment ratio but a larger hip to support moment ratio in the involved limb than in the uninvolved limb (95% CIs: knee extension moment, -0.273 to -0.088 N·m/kg; knee to support moment ratio, -10.7% to -2.2%; hip to support moment ratio, 3.2% to 8.5%). No interlimb difference was found for the HQ group. The LSI of quadriceps strength was significantly associated with the LSI of peak knee extension moment (R2 = 0.183), knee to support moment ratio (R2 = 0.256), and hip to support moment ratio (R2 = 0.233). The mean maximum isokinetic quadriceps strength and peak knee extension moment during squatting on the involved limb of the LQ group were 2.40 ± 0.39 and 0.90 ± 0.16 N·m/kg, respectively. Conclusion Asymmetrical biomechanics during double-leg squatting was associated with persistent quadriceps weakness after ACLR. The LQ group had reduced knee extensor moment on the involved side during squatting despite loading at approximately half the maximum strength. Clinical Relevance Quadriceps strengthening exercises, together with interventions to improve neuromuscular control, may reduce asymmetrical biomechanics during double-leg squatting.
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Affiliation(s)
- Tomoya Ishida
- Faculty of Health Sciences, Hokkaido
University, Sapporo, Japan
| | - Mina Samukawa
- Faculty of Health Sciences, Hokkaido
University, Sapporo, Japan
| | - Yuta Koshino
- Faculty of Health Sciences, Hokkaido
University, Sapporo, Japan
| | - Takumi Ino
- Faculty of Health Sciences, Hokkaido
University of Science, Sapporo, Japan
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Letter MI, Parrino RL, Adams W, Ripic Z, Baraga MG, Kaplan LD, Harrah T, Tremblay J, Luxenburg D, Conti J, Signorile JF. The Associations Between Quadriceps Tendon Graft Thickness and Isokinetic Performance. Am J Sports Med 2023; 51:942-948. [PMID: 36790220 DOI: 10.1177/03635465231152899] [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: 02/16/2023]
Abstract
BACKGROUND Anterior cruciate ligament reconstruction (ACLR) using the quadriceps tendon is an increasingly popular technique. Both partial-thickness quadriceps tendon (PT-Q) and full-thickness quadriceps tendon (FT-Q) graft depths are employed. HYPOTHESIS/PURPOSE This study was designed to assess isokinetic peak torque, average power, and total work during knee extension in patients with FT-Q or PT-Q grafts for ACLR. We hypothesized that both groups would show lower isokinetic values for the operated side, with greater deficits in the FT-Q group than in the PT-Q group. STUDY DESIGN Cohort study; Level of evidence, 3. METHODS A total of 26 patients who underwent ACLR with either an FT-Q or PT-Q graft were recruited between June 2021 and November 2021. Patients underwent isokinetic knee extension testing at > 1 year after surgery. Mixed repeated-measures analysis of covariance with least square difference post hoc testing was used to determine significant differences or interactions for all variables. RESULTS Peak torque was significantly lower for the operated limb than the nonoperated limb in the FT-Q group (mean difference [MD] ± standard error [SE], -38.6 ± 8.3 Nċm [95% CI, -55.7 to -21.5 Nċm]; P < .001; d = 0.90) but not in the PT-Q group (MD ± SE, -7.3 ± 7.7 Nċm [95% CI, -23.2 to 8.5 Nċm]; P = .348; d = 0.20). Similarly, average power for the operated limb was lower than that for the nonoperated limb in the FT-Q group (MD ± SE, -53.6 ± 13.4 W [95% CI, -81.3 to -26.9 W]; P < .001; d = 0.88) but not in the PT-Q group (MD ± SE, -4.1 ± 12.4 W [95% CI, -29.8 to 21.5 W]; P = .742; d = 0.07), and total work was lower for the operated limb compared with the nonoperated limb in the FT-Q group (MD ± SE, -118.2 ± 27.1 J [95% CI, -174.3 to -62.2 J]; P < .001; d = 0.96) but not in the PT-Q group (MD ± SE, -18.3 ± 25.1 J [95% CI, -70.2 to 33.6 J]; P = .472; d = 0.15). CONCLUSION The FT-Q group showed significant deficits in the operated limb compared with the nonoperated limb for all isokinetic variables. In contrast, no significant differences were found between the nonoperated and operated limbs for the PT-Q group.
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Affiliation(s)
- Michael I Letter
- University of Miami Sports Medicine Institute, Coral Gables, Florida, USA
- Max Orovitz Laboratory, University of Miami, Coral Gables, Florida, USA
| | - Rosalia L Parrino
- Max Orovitz Laboratory, University of Miami, Coral Gables, Florida, USA
| | - Will Adams
- Max Orovitz Laboratory, University of Miami, Coral Gables, Florida, USA
| | - Zachary Ripic
- Max Orovitz Laboratory, University of Miami, Coral Gables, Florida, USA
| | - Michael G Baraga
- University of Miami Sports Medicine Institute, Coral Gables, Florida, USA
| | - Lee D Kaplan
- University of Miami Sports Medicine Institute, Coral Gables, Florida, USA
| | - Tanner Harrah
- Valley Orthopedic Associates, San Dimas, California, USA
| | - Julien Tremblay
- Leonard M. Miller School of Medicine, University of Miami, Miami, Florida, USA
| | - Dylan Luxenburg
- Leonard M. Miller School of Medicine, University of Miami, Miami, Florida, USA
| | - Joseph Conti
- Max Orovitz Laboratory, University of Miami, Coral Gables, Florida, USA
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