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Limited By:	Subject = anterior cruciate ligament;

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Anterior cruciate ligament graft tensioning. Is the maximal sustained one-handed pull technique reproducible? (2012)

O'Neill, Barry; Byrne, Fergus J.; Hirpara, Kieran M.; Brennan, William F.; McHugh,...

Anterior cruciate ligament graft tensioning. Is the maximal sustained one-handed pull technique reproducible? (2012)

O'Neill, Barry; Byrne, Fergus J.; Hirpara, Kieran M.; Brennan, William F.; McHugh, Peter E.

Abstract:

Background Tensioning of anterior cruciate ligament (ACL) reconstruction grafts affects the clinical outcome of the procedure. As yet, no consensus has been reached regarding the optimum initial tension in an ACL graft. Most surgeons rely on the maximal sustained one-handed pull technique for graft tension. We aim to determine if this technique is reproducible from patient to patient. Findings We created a device to simulate ACL reconstruction surgery using Ilizarov components and porcine flexor tendons. Six experienced ACL reconstruction surgeons volunteered to tension porcine grafts using the device to see if they could produce a consistent tension. None of the surgeons involved were able to accurately reproduce graft tension over a series of repeat trials. Conclusions We conclude that the maximal sustained one-handed pull technique of ACL graft tensioning is not reproducible from trial to trial. We also conclude that the initial tension placed on an ACL graft varies from surge...

http://hdl.handle.net/10379/3056

Marked Mark

Heberden's nodes and what heberden could not see: the pivotal role of ligaments in the pathogenesis of early nodal osteoarthritis and beyond (2018)

McGonagle, D.; Tan, A. L.; Grainger, A. J.; Benjamin, M.

Heberden's nodes and what heberden could not see: the pivotal role of ligaments in the pathogenesis of early nodal osteoarthritis and beyond (2018)

McGonagle, D.; Tan, A. L.; Grainger, A. J.; Benjamin, M.

Abstract:

Despite its relatively high prevalence, polyarticular nature, limited treatment options and recognized genetic contribution, the study of generalized OA (GOA) has lagged behind that of isolated knee OA. Whilst the pathogenesis of OA has been viewed in relation to either articular cartilage or bone disease, this article offers a viewpoint on why GOA may, in fact, be primarily a disorder of ligaments, and to a lesser extent tendon and joint capsule dysfunction. A relatively fast presentation of GOA, typically in the perimenopausal period, and its recognition on clinical grounds alone makes this type of OA potentially useful for pathogenic studies in OA, in general. The recent high-resolution MRI studies, microanatomical studies and animal models, in addition to established clinical and radiographic data that support this ligament-centric perspective of disease, are reviewed. The earliest structural abnormalities in GOA may be evident in ligaments and the ligament-associated enthesis o...

http://hdl.handle.net/10379/12790

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Hip rotation range of motion and its impact on lower limb alignment on landing (2010)

Breen, Sarah; Harrison, Andrew J.; Kenny, Ian C.

Hip rotation range of motion and its impact on lower limb alignment on landing (2010)

Breen, Sarah; Harrison, Andrew J.; Kenny, Ian C.

Abstract:

The purpose of the present study was to compare lower limb alignment at initial ground contact between groups with normal and abnormal hip rotation range of motion. Male (n=8) and female (n=8) subjects performed an maximal drop jump diagonal side cut task ten to the left and ten to the right. Lower limb alignment was assessed through knee angle, hip angle, ankle angle, thigh rotation and shank rotation at initial foot contact. One significant difference was reported between groups for the knee angle variable on the non dominant side. This indicates that the only the knee angle variable is affected by unbalanced hip rotation range of motion and on the non-dominant side.
EMBARK IRCSET

http://hdl.handle.net/10344/2365

Irish Research Council for Science Engineering and Technology

Marked Mark

Joint kinematics of landing in ACL rehabilitated volunteers (2011)

Breen, Sarah; Harrison, Andrew J.; Kenny, Ian C.

Joint kinematics of landing in ACL rehabilitated volunteers (2011)

Breen, Sarah; Harrison, Andrew J.; Kenny, Ian C.

Abstract:

The purpose of the present study was to compare the variability of movement and force production in ACL rehabilitated volunteers during landing from a maximal drop jump. Male (n=6) and female (n=7) volunteers with previous ACL reconstruction and rehabilitation performed a maximal drop jump diagonal side cut task (x20 trials). Knee and hip joint kinematics in all three planes were calculated during the landing component of the task. The range of motion (ROM) of the hip and knee joint, showed differences between the legs. The previously injured leg showed smaller ROM in hip and knee abadduction and knee flexion extension. The decreased range of motion in the previously injured leg may be indicative of a less variable landing movement repertoire, which may increase injury risk.

http://hdl.handle.net/10344/2204

Marked Mark

Lower limb kinematics, kinetics and coordination during a land and cut task; the role of gender and previous ACL injury (2012)

Breen, Sarah

Lower limb kinematics, kinetics and coordination during a land and cut task; the role of gender and previous ACL injury (2012)

Breen, Sarah

Abstract:

Anterior cruciate ligament (ACL) injury continues to be a constant adversary to field sports athletes. Females are widely acknowledged as being at an increased risk of ACL injury, in comparison to males. Athletes who are successful in rehabilitation after surgery and return to their sport are reported to have an increased risk of repeated ACL injury and the development of osteoarthritis. The current thesis utilised a novel, maximal drop-jump land and unanticipated cutting task to assess the lower limb biomechanics of uninjured male and females, and previously ACL injured subjects (ACLr). Discrete measures of lower limb kinematics and kinetics were firstly compared between uninjured males and females, and secondly between the previously injured (PI) leg of ACLr subjects and both the contralateral non-injured (NI) leg and an uninjured subject’s control leg. The results show that females had increased hip internal rotation, the PI leg was not significantly different to the NI leg but w...

http://hdl.handle.net/10344/2590

Displaying Results 1 - 5 of 5 on page 1 of 1