Int J Sports Med 2018; 39(07): 549-554
DOI: 10.1055/a-0599-6401
Orthopedics & Biomechanics
© Georg Thieme Verlag KG Stuttgart · New York

Postural Adjustments Following ACL Rupture and Reconstruction: A Longitudinal Study

Luciana Labanca
1  Università degli Studi di Roma 'Foro Italico', Department of Movement, Human and Health Sciences, Roma, Italy
,
Luca Laudani
2  Cardiff Metropolitan University, Cardiff School of Sport and Health Sciences, Cardiff, United Kingdom of Great Britain and Northern Ireland
,
Pier Paolo Mariani
1  Università degli Studi di Roma 'Foro Italico', Department of Movement, Human and Health Sciences, Roma, Italy
3  Villa Stuart Sport Clinic-FIFA Medical Centre of Excellence, Roma, Italy
,
Andrea Macaluso
1  Università degli Studi di Roma 'Foro Italico', Department of Movement, Human and Health Sciences, Roma, Italy
3  Villa Stuart Sport Clinic-FIFA Medical Centre of Excellence, Roma, Italy
› Author Affiliations
Further Information

Publication History



accepted 21 March 2018

Publication Date:
28 June 2018 (online)

Abstract

Longitudinal changes in compensatory and anticipatory postural adjustments around the knee were investigated from rupture of ACL until return to play after reconstruction. Twelve ACL-injured participants (ACL-P) were asked to respond to unpredictable and predictable perturbations before (T1), 2 (T2) and 6 months after (T3) reconstruction. Twelve healthy participants served as controls. Compensatory and anticipatory latencies of vastus lateralis (VL) and medialis (VM) were measured with respect to the arrival of perturbations. ACL-P showed delayed compensatory latencies compared to controls at T1 for VL (101±32 ms vs 63±7 ms) and VM (117±36 ms vs 75±17 ms) and at T2 for VL (94±20 ms vs 63±7 ms) and VM (94±27 ms vs 71±11 ms). ACL-P showed earlier anticipatory latencies than controls for VL at T1 (-69±44 ms vs -12±12 ms) and T2 (-46±17 ms vs -16±12 ms). At T3, ACL-P showed delayed compensatory latencies for VL (91±18 ms vs 56±21 ms) and VM (95±13 ms vs 66±4 ms), whilst anticipatory latencies were restored. Rehabilitation should address delayed compensatory responses.