Proprioceptive acuity in patients with a torn anterior cruciate ligament following a rehabilitation programme

Hatcher, JO ORCID: 2007, Proprioceptive acuity in patients with a torn anterior cruciate ligament following a rehabilitation programme , PhD thesis, University of Salford.

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Introduction: Rupture of the Anterior Cruciate ligament (ACL) results in instability of the knee and repeated episodes of "giving away", where the knee fails under conditions of rotary stress. This instability has been attributed to poor proprioception, which in turn has been credited to disruption of the mechanoreceptors. Although several studies show that proprioception is improved by neuromuscular training, most studies use the contra-lateral limb as a control, which raises the question of whether there may be a pre-disposing proprioceptive deficit leading to injury. Aims: To investigate the effect of rehabilitation of ACL deficient (ACLD) patients on a variety of tests that measure proprioceptive acuity. Methods: Subjects (N=18, mean age 34.5yrs) diagnosed with ACLD, were tested for proprioceptive acuity prior to, and after 6- and 12-weeks of rehabilitation. Joint position sense (JPS) using a reproduction of limb position, single leg static balance (postural sway) using a stable force platform, and dynamic balance using the Star Excursion Balance (SEBT) test were used as measures of proprioceptive acuity. Results: Results show that there are significant differences in proprioception between injured and non-injured limbs in terms of JPS and the SEBT although this was not in measurement of postural sway. Furthermore these observed differences remained even after 12-weeks rehabilitation. There was a significant difference in the frontal plane measurements of SEBT between the uninjured contra-lateral limbs when compared to a group of normal knees of uninjured subjects. Conclusions: It appears that JPS and dynamic balance is significantly affected by injury to the ACL; however, the results suggest that some aspects of proprioception (postural control) may well be a predisposing factor to ACL injury, whilst other aspects such as joint position sense, occur as a result of injury. A 12-week rehabilitation period does not appear to significantly improve proprioceptive acuity.

Item Type: Thesis (PhD)
Contributors: Herrington, LC (Supervisor)
Schools: Schools > School of Health and Society
Depositing User: Institutional Repository
Date Deposited: 18 Aug 2021 11:04
Last Modified: 04 Aug 2022 11:21

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