411 results found
Hoogeslag RAG, Brouwer RW, Huis In 't Veld R, et al., 2018, Dynamic augmentation restores anterior tibial translation in ACL suture repair: a biomechanical comparison of non-, static and dynamic augmentation techniques., Knee Surg Sports Traumatol Arthrosc
PURPOSE: There is a lack of objective evidence investigating how previous non-augmented ACL suture repair techniques and contemporary augmentation techniques in ACL suture repair restrain anterior tibial translation (ATT) across the arc of flexion, and after cyclic loading of the knee. The purpose of this work was to test the null hypotheses that there would be no statistically significant difference in ATT after non-, static- and dynamic-augmented ACL suture repair, and they will not restore ATT to normal values across the arc of flexion of the knee after cyclic loading. METHODS: Eleven human cadaveric knees were mounted in a test rig, and knee kinematics from 0° to 90° of flexion were recorded by use of an optical tracking system. Measurements were recorded without load and with 89-N tibial anterior force. The knees were tested in the following states: ACL-intact, ACL-deficient, non-augmented suture repair, static tape augmentation and dynamic augmentation after 10 and 300 loading cycles. RESULTS: Only static tape augmentation and dynamic augmentation restored ATT to values similar to the ACL-intact state directly postoperation, and maintained this after cyclic loading. However, contrary to dynamic augmentation, the ATT after static tape augmentation failed to remain statistically less than for the ACL-deficient state after cyclic loading. Moreover, after cyclic loading, ATT was significantly less with dynamic augmentation when compared to static tape augmentation. CONCLUSION: In contrast to non-augmented ACL suture repair and static tape augmentation, only dynamic augmentation resulted in restoration of ATT values similar to the ACL-intact knee and decreased ATT values when compared to the ACL-deficient knee immediately post-operation and also after cyclic loading, across the arc of flexion, thus allowing the null hypotheses to be rejected. This may assist healing of the ruptured ACL. Therefore, this study would support further clinical evaluation of dyna
Kanca Y, Milner P, Dini D, et al., 2018, Tribological properties of PVA/PVP blend hydrogels against articular cartilage, JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS, Vol: 78, Pages: 36-45, ISSN: 1751-6161
Kittl C, Inderhaug E, Williams A, et al., 2018, Biomechanics of the Anterolateral Structures of the Knee, CLINICS IN SPORTS MEDICINE, Vol: 37, Pages: 21-+, ISSN: 0278-5919
Musahl V, Getgood A, Neyret P, et al., 2018, Erratum to: Contributions of the anterolateral complex and the anterolateral ligament to rotatory knee stability in the setting of ACL Injury: a roundtable discussion (Knee Surgery, Sports Traumatology, Arthroscopy, (2017), 25, 4, (997-1008), 10.1007/s00167-017-4436-7), Knee Surgery, Sports Traumatology, Arthroscopy, Vol: 26, ISSN: 0942-2056
© 2016, European Society of Sports Traumatology, Knee Surgery, Arthroscopy (ESSKA). In the original article, one of the co-authors’ name has been published incorrectly. The correct name should be Jeremy M. Burnham. The original article has been updated accordingly.
Amirthanayagam TD, Amis AA, Reilly P, et al., 2017, Rotator cuff-sparing approaches for glenohumeral joint access: an anatomic feasibility study, JOURNAL OF SHOULDER AND ELBOW SURGERY, Vol: 26, Pages: 512-520, ISSN: 1058-2746
Amis A, Zaffagnini S, Musahl V, 2017, The anterolateral aspect of the knee: the state of play., Knee Surg Sports Traumatol Arthrosc, Vol: 25, Pages: 989-990
Amis AA, 2017, Anterolateral knee biomechanics, KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY, Vol: 25, Pages: 1015-1023, ISSN: 0942-2056
Athwal KK, El Daou H, Inderhaug E, et al., 2017, An in vitro analysis of medial structures and a medial soft tissue reconstruction in a constrained condylar total knee arthroplasty, KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY, Vol: 25, Pages: 2646-2655, ISSN: 0942-2056
Athwal KK, El Daou H, Inderhaug E, et al., 2017, An in vitro analysis of medial structures and a medial soft tissue reconstruction in a constrained condylar total knee arthroplasty (vol 25, pg 2646, 2016), KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY, Vol: 25, Pages: 2656-2656, ISSN: 0942-2056
Athwal KK, El Daou H, Lord B, et al., 2017, Lateral soft-tissue structures contribute to cruciate-retaining total knee arthroplasty stability, JOURNAL OF ORTHOPAEDIC RESEARCH, Vol: 35, Pages: 1902-1909, ISSN: 0736-0266
Cheong VS, Karunaratne A, Amis AA, et al., 2017, Strain rate dependency of fractures of immature bone, JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS, Vol: 66, Pages: 68-76, ISSN: 1751-6161
Colaco HB, Lord BR, Back DL, et al., 2017, Biomechanical properties of bovine tendon xenografts treated with a modern processing method, JOURNAL OF BIOMECHANICS, Vol: 53, Pages: 144-147, ISSN: 0021-9290
El Daou H, Lord B, Amis A, et al., 2017, Assessment of pose repeatability and specimen repositioning of a robotic joint testing platform, MEDICAL ENGINEERING & PHYSICS, Vol: 47, Pages: 210-213, ISSN: 1350-4533
Geraldes DM, Hansen U, Amis AA, 2017, Parametric Analysis of Glenoid Implant Design and Fixation Type, JOURNAL OF ORTHOPAEDIC RESEARCH, Vol: 35, Pages: 775-784, ISSN: 0736-0266
Geraldes DM, Hansen U, Jeffers J, et al., 2017, Stability of small pegs for cementless implant fixation, JOURNAL OF ORTHOPAEDIC RESEARCH, Vol: 35, Pages: 2765-2772, ISSN: 0736-0266
Getgood A, LaPrade RF, Verdonk P, et al., 2017, International Meniscus Reconstruction Experts Forum (IMREF) 2015 Consensus Statement on the Practice of Meniscal Allograft Transplantation, American Journal of Sports Medicine, Vol: 45, Pages: 1195-1205, ISSN: 0363-5465
© 2017 The Author(s). Meniscal allograft transplantation (MAT) has become relatively commonplace in specialized sport medicine practice for the treatment of patients with a symptomatic knee after the loss of a functional meniscus. The technique has evolved since the 1980s, and long-term results continue to improve. However, there still remains significant variation in how MAT is performed, and as such, there remains opportunity for outcome and graft survivorship to be optimized. The purpose of this article was to develop a consensus statement on the practice of MAT from key opinion leaders who are members of the International Meniscus Reconstruction Experts Forum so that a more standardized approach to the indications, surgical technique, and postoperative care could be outlined with the goal of ultimately improving patient outcomes.
Inderhaug E, Stephen JM, El-Daou H, et al., 2017, The Effects of Anterolateral Tenodesis on Tibiofemoral Contact Pressures and Kinematics, AMERICAN JOURNAL OF SPORTS MEDICINE, Vol: 45, Pages: 3081-3088, ISSN: 0363-5465
Inderhaug E, Stephen JM, Williams A, et al., 2017, Biomechanical Comparison of Anterolateral Procedures Combined With Anterior Cruciate Ligament Reconstruction, AMERICAN JOURNAL OF SPORTS MEDICINE, Vol: 45, Pages: 347-354, ISSN: 0363-5465
Inderhaug E, Stephen JM, Williams A, et al., 2017, Anterolateral Tenodesis or Anterolateral Ligament Complex Reconstruction Effect of Flexion Angle at Graft Fixation When Combined With ACL Reconstruction, AMERICAN JOURNAL OF SPORTS MEDICINE, Vol: 45, Pages: 3089-3097, ISSN: 0363-5465
Iranpour F, Merican AM, Teo SH, et al., 2017, Femoral articular geometry and patellofemoral stability, KNEE, Vol: 24, Pages: 555-563, ISSN: 0968-0160
Junaid S, Sanghavi S, Anglin C, et al., 2017, Treatment of the Fixation Surface Improves Glenoid Prosthesis Longevity in vitro, JOURNAL OF BIOMECHANICS, Vol: 61, Pages: 81-87, ISSN: 0021-9290
Kittl C, Inderhaug E, Stephen J, et al., 2017, Scientific basis and surgical technique for iliotibial band tenodesis combined with ACL reconstruction, Controversies in the Technical Aspects of ACL Reconstruction: An Evidence-Based Medicine Approach, Pages: 393-404, ISBN: 9783662527429
© ISAKOS 2017. Anatomy: Due to the complexity of the lateral side of the knee, it may be best to describe these structures in terms of three tissue layers from superficial to deep. The distal part of the fascia lata - (1) the superficial layer of the iliotibial band (ITB) - is tethered to the distal femur by the (2) deep and capsulo-osseous fibres of the ITB. Removal of these ITB layers exposes the (3) anterolateral capsule and other deeper structures, which has been described as including the anterolateral ligament (ALL) with differing interpretations. Biomechanics: The anterior cruciate ligament (ACL) and the ITB have been shown to be the primary restraints to anterior tibial translation and internal tibial rotation, respectively. An injury of the ACL and the anterolateral structures may therefore result in a combined translatory and rotatory instability, called anterolateral rotatory instability (ALRI). As a logical rationale, a surgical intervention would include an intra-articular ACL reconstruction alongside a reconstruction of the anterolateral structures. This has been shown to restore normal knee kinematics in a simulated ALRI-injured knee. Conclusion: The anatomy of the anterolateral side is complex and yet not fully understood. Thus, there is an urgent need for a standardised nomenclature/terminology for these structures. A combined ALRI injury may be treated with an intra-articular ACL reconstruction and a nonanatomic ITB tenodesis.
Kittl C, Williams A, Amis AA, 2017, Biomechanical Role of Lateral Structures in Controlling Anterolateral Rotatory Laxity: The lliotibial Tract, OPERATIVE TECHNIQUES IN ORTHOPAEDICS, Vol: 27, Pages: 96-101, ISSN: 1048-6666
Li J, Clarke S, Cobb JP, et al., 2017, Novel curved surface preparation technique for knee resurfacing, MEDICAL ENGINEERING & PHYSICS, Vol: 49, Pages: 89-93, ISSN: 1350-4533
Lord BR, El-Daou H, Sabnis BM, et al., 2017, Biomechanical comparison of graft structures in anterior cruciate ligament reconstruction (vol 25, pg 559, 2017), KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY, Vol: 25, Pages: 988-988, ISSN: 0942-2056
Lord BR, El-Daou H, Sabnis BM, et al., 2017, Biomechanical comparison of graft structures in anterior cruciate ligament reconstruction, KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY, Vol: 25, Pages: 559-568, ISSN: 0942-2056
Musahl V, Getgood A, Neyret P, et al., 2017, Contributions of the anterolateral complex and the anterolateral ligament to rotatory knee stability in the setting of ACL Injury: a roundtable discussion., Knee Surg Sports Traumatol Arthrosc, Vol: 25, Pages: 997-1008
Persistent rotatory knee laxity is increasingly recognized as a common finding after anterior cruciate ligament (ACL) reconstruction. While the reasons behind rotator knee laxity are multifactorial, the impact of the anterolateral knee structures is significant. As such, substantial focus has been directed toward better understanding these structures, including their anatomy, biomechanics, in vivo function, injury patterns, and the ideal procedures with which to address any rotatory knee laxity that results from damage to these structures. However, the complexity of lateral knee anatomy, varying dissection techniques, differing specimen preparation methods, inconsistent sectioning techniques in biomechanical studies, and confusing terminology have led to discrepancies in published studies on the topic. Furthermore, anatomical and functional descriptions have varied widely. As such, we have assembled a panel of expert surgeons and scientists to discuss the roles of the anterolateral structures in rotatory knee laxity, the healing potential of these structures, the most appropriate procedures to address rotatory knee laxity, and the indications for these procedures. In this round table discussion, KSSTA Editor-in-Chief Professor Jón Karlsson poses a variety of relevant and timely questions, and experts from around the world provide answers based on their personal experiences, scientific study, and interpretations of the literature. Level of evidence V.
Sopher RS, Amis AA, Calder JD, et al., 2017, Total ankle replacement design and positioning affect implant-bone micromotion and bone strains, MEDICAL ENGINEERING & PHYSICS, Vol: 42, Pages: 80-90, ISSN: 1350-4533
Sopher RS, Amis AA, Davies DC, et al., 2017, The influence of muscle pennation angle and cross-sectional area on contact forces in the ankle joint, JOURNAL OF STRAIN ANALYSIS FOR ENGINEERING DESIGN, Vol: 52, Pages: 12-23, ISSN: 0309-3247
Williams A, Ball S, Stephen J, et al., 2017, The scientific rationale for lateral tenodesis augmentation of intra-articular ACL reconstruction using a modified 'Lemaire' procedure, KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY, Vol: 25, Pages: 1339-1344, ISSN: 0942-2056
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