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Nukuto K, Gale T, Yamamoto T, Musahl V, Anderst W. Bone morphology features associated with knee kinematics may not be predictive of ACL elongation during high-demand activities. Knee Surg Sports Traumatol Arthrosc 2023; 31:5096-5103. [PMID: 37728761 DOI: 10.1007/s00167-023-07560-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 08/29/2023] [Indexed: 09/21/2023]
Abstract
PURPOSE Bony morphology has been proposed as a potential risk factor for anterior cruciate ligament (ACL) injury. The relationship between bony morphology, knee kinematics, and ACL elongation during high-demand activities remains unclear. The purpose of this study was to determine if bone morphology features that have been associated with ACL injury risk and knee kinematics are also predictive of ACL elongation during fast running and double-legged drop jump. METHODS Nineteen healthy athletes performed fast running and double-legged drop jump within a biplane radiography imaging system. Knee kinematics and ACL elongation were measured bilaterally after using a validated registration process to track bone motion in the radiographs and after identifying ACL attachment sites on magnetic resonance imaging (MRI). Bony morphological features of lateral posterior tibial slope (LPTS), medial tibial plateau (MTP) depth, and lateral femoral condyle anteroposterior width (LCAP)/lateral tibial plateau anteroposterior width (TPAP) were measured on MRI. Relationships between bony morphology and knee kinematics or ACL elongation were identified using multiple linear regression analysis. RESULTS No associations between bony morphology and knee kinematics or ACL elongation were observed during fast running. During double-legged drop jump, a greater range of tibiofemoral rotation was associated with a steeper LPTS (β = 0.382, p = 0.012) and a deeper MTP depth (β = 0.331, p = 0.028), and a greater range of anterior tibial translation was associated with a shallower MTP depth (β = - 0.352, p = 0.018) and a larger LCAP/ TPAP (β = 0.441, p = 0.005); however, greater ACL elongation was only associated with a deeper MTP depth (β = 0.456, p = 0.006) at toe-off. CONCLUSION These findings indicate that observed relationships between bony morphology and kinematics should not be extrapolated to imply a relationship also exists between those bone morphology features and ACL elongation during high-demand activities. These new findings deepen our understanding of the relationship between bony morphology and ACL elongation during high-demand activities. This knowledge can help identify high-risk patients for whom additional procedures during ACL reconstruction are most appropriate.
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Affiliation(s)
- Koji Nukuto
- Department of Orthopedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
- Biodynamics Laboratory, University of Pittsburgh, Rivertech Building Complex 3820 South Water Street, Pittsburgh, PA, 15203, USA
| | - Tom Gale
- Biodynamics Laboratory, University of Pittsburgh, Rivertech Building Complex 3820 South Water Street, Pittsburgh, PA, 15203, USA
| | - Tetsuya Yamamoto
- Department of Orthopedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
- Biodynamics Laboratory, University of Pittsburgh, Rivertech Building Complex 3820 South Water Street, Pittsburgh, PA, 15203, USA
| | - Volker Musahl
- Department of Orthopedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - William Anderst
- Biodynamics Laboratory, University of Pittsburgh, Rivertech Building Complex 3820 South Water Street, Pittsburgh, PA, 15203, USA.
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Tanaka T, Gale T, Nishida K, Xu C, Fu F, Anderst W. Posterior tibial slope and meniscal slope correlate with in vivo tibial internal rotation during running and drop jump. Knee Surg Sports Traumatol Arthrosc 2022; 31:2366-2373. [PMID: 36115904 DOI: 10.1007/s00167-022-07163-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 09/06/2022] [Indexed: 11/30/2022]
Abstract
PURPOSE The relationship between tibial bony and meniscus anatomy and knee kinematics during in vivo, high-impact activities remains unclear. This study aimed to determine if the posterior tibial slope (PTS) and meniscal slope (MS) are associated with in vivo anterior-posterior translation and internal tibia rotation during running and double-leg drop jumps in healthy knees. METHODS Nineteen collegiate athletes performed fast running at 5.0 m/s on an instrumented treadmill and double-leg drop jump from a 60 cm platform while biplane radiographs of the knee were acquired at 150 Hz. Tibiofemoral kinematics were determined using a validated model-based tracking process. Medial and lateral PTS and MS were measured using magnetic resonance imaging (MRI). RESULTS In fast running, more internal tibia rotation was associated with greater PTS (ρ = 0.336, P = 0.039) and MS (ρ = 0.405, P = 0.012) in the medial knee compartment. In the double-leg drop jump, more internal tibia rotation was associated with greater PTS (ρ = 0.431, P = 0.007) and MS (ρ = 0.323, P = 0.005) in the medial knee compartment, as well as a greater PTS in the lateral knee compartment (ρ = 0.445, P = 0.005). CONCLUSION These findings suggest that the medial and lateral PTS and medial MS are associated with the amount of knee rotation during high-impact activities. These in vivo findings improve our understanding of ACL injury risk by linking bone and meniscus morphology to dynamic kinematics.
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Affiliation(s)
- Toshikazu Tanaka
- UPMC Freddie Fu Sports Medicine Center, Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, USA.,Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan.,Biodynamics Laboratory, University of Pittsburgh, Rivertech Building Complex, 3820 South Water Street, Pittsburgh, PA, 15203, USA
| | - Tom Gale
- Biodynamics Laboratory, University of Pittsburgh, Rivertech Building Complex, 3820 South Water Street, Pittsburgh, PA, 15203, USA
| | - Kyohei Nishida
- UPMC Freddie Fu Sports Medicine Center, Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, USA.,Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan.,Biodynamics Laboratory, University of Pittsburgh, Rivertech Building Complex, 3820 South Water Street, Pittsburgh, PA, 15203, USA
| | - Caiqi Xu
- UPMC Freddie Fu Sports Medicine Center, Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, USA.,Biodynamics Laboratory, University of Pittsburgh, Rivertech Building Complex, 3820 South Water Street, Pittsburgh, PA, 15203, USA.,Department of Sports Medicine, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University, Shanghai, China
| | - Freddie Fu
- UPMC Freddie Fu Sports Medicine Center, Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, USA
| | - William Anderst
- Biodynamics Laboratory, University of Pittsburgh, Rivertech Building Complex, 3820 South Water Street, Pittsburgh, PA, 15203, USA.
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