Tommi Kääriäinen1,2,3, Simo Taimela4, Timo Aalto5, Heikki Kröger6,7, Arto Herno8, Veli Turunen6, Sakari Savolainen9, Markku Kankaanpää10, Olavi Airaksinen8, Ville Leinonen9. 1. Department of Orthopaedics, Traumatology and Handsurgery, Kuopio University Hospital, PL 100, 70029, Kuopio, Finland. tommi.kaariainen@kuh.fi. 2. Department of Physical and Rehabilitation Medicine, Kuopio University Hospital, Kuopio, Finland. tommi.kaariainen@kuh.fi. 3. Bone and Cartilage Research Unit, Institute of Clinical Medicine, University of Eastern Finland, Kuopio, Finland. tommi.kaariainen@kuh.fi. 4. Evalua International, Helsinki, Finland. 5. Lääkärikeskus Ikioma, Medical Center Ikioma, St Michel, Finland. 6. Department of Orthopaedics, Traumatology and Handsurgery, Kuopio University Hospital, PL 100, 70029, Kuopio, Finland. 7. Bone and Cartilage Research Unit, Institute of Clinical Medicine, University of Eastern Finland, Kuopio, Finland. 8. Department of Physical and Rehabilitation Medicine, Kuopio University Hospital, Kuopio, Finland. 9. Department of Neurosurgery, Kuopio University Hospital, Kuopio, Finland. 10. Department of Physical and Rehabilitation Medicine, Tampere University Hospital, Tampere, Finland.
Abstract
PURPOSE: Chronic low back pain and lumbar spinal stenosis (LSS) seem to deteriorate lumbar muscle function and proprioception but the effect of surgery on them remains unclear. This study evaluates the effect of decompressive surgery on lumbar movement perception and paraspinal and biceps brachii (BB) muscle responses during sudden upper limb loading in LSS. METHODS: Low back and radicular pain intensity (VAS) and Oswestry Disability Index (ODI) were measured together with lumbar proprioception and paraspinal and BB muscle responses prior to and 3 and 24 months after surgery in 30 LSS patients. Lumbar proprioception was assessed by a previously validated motorized trunk rotation unit and muscle responses for sudden upper limb loading by surface EMG. RESULTS: Lumbar perception threshold improved after surgery during 3-month follow-up (from 4.6° to 3.1°, P = 0.015) but tend to deteriorate again during 24 months (4.0°, P = 0.227). Preparatory paraspinal and BB muscle responses prior to sudden load as well as paraspinal muscle activation latencies after the load remained unchanged. CONCLUSION: Impaired lumbar proprioception seems to improve shortly after decompressive surgery but tends to deteriorate again with longer follow-up despite the sustaining favorable clinical outcome. The surgery did not affect either the feed-forward or the feed-back muscle function, which indicates that the abnormal muscle activity in LSS is at least partly irreversible.
PURPOSE: Chronic low back pain and lumbar spinal stenosis (LSS) seem to deteriorate lumbar muscle function and proprioception but the effect of surgery on them remains unclear. This study evaluates the effect of decompressive surgery on lumbar movement perception and paraspinal and biceps brachii (BB) muscle responses during sudden upper limb loading in LSS. METHODS:Low back and radicular pain intensity (VAS) and Oswestry Disability Index (ODI) were measured together with lumbar proprioception and paraspinal and BB muscle responses prior to and 3 and 24 months after surgery in 30 LSS patients. Lumbar proprioception was assessed by a previously validated motorized trunk rotation unit and muscle responses for sudden upper limb loading by surface EMG. RESULTS: Lumbar perception threshold improved after surgery during 3-month follow-up (from 4.6° to 3.1°, P = 0.015) but tend to deteriorate again during 24 months (4.0°, P = 0.227). Preparatory paraspinal and BB muscle responses prior to sudden load as well as paraspinal muscle activation latencies after the load remained unchanged. CONCLUSION: Impaired lumbar proprioception seems to improve shortly after decompressive surgery but tends to deteriorate again with longer follow-up despite the sustaining favorable clinical outcome. The surgery did not affect either the feed-forward or the feed-back muscle function, which indicates that the abnormal muscle activity in LSS is at least partly irreversible.
Authors: V Leinonen; M Kankaanpää; M Luukkonen; O Hänninen; O Airaksinen; S Taimela Journal: Spine (Phila Pa 1976) Date: 2001-08-15 Impact factor: 3.468
Authors: Ville Leinonen; Minna Airaksinen; Simo Taimela; Markku Kankaanpää; Ari Kukka; Taina Koivisto; Olavi Airaksinen Journal: Spine (Phila Pa 1976) Date: 2007-03-01 Impact factor: 3.468
Authors: Genevieve Dubourg; Sylvie Rozenberg; Bruno Fautrel; Isabelle Valls-Bellec; Anne Bissery; Thierry Lang; Thierry Faillot; Bernard Duplan; Daniel Briançon; Françoise Levy-Weil; Gilles Morlock; Jacques Crouzet; Michel Gatfosse; Christine Bonnet; Eric Houvenagel; Stéphane Hary; Olivier Brocq; Serge Poiraudeau; Johann Beaudreuil; Catherine de Sauverzac; Stephanie Durieux; Marc-Henri Levade; Philippe Esposito; Daniel Maitrot; Philippe Goupille; Jean-Pierre Valat; Pierre Bourgeois Journal: Spine (Phila Pa 1976) Date: 2002-07-01 Impact factor: 3.468
Authors: Ville Leinonen; Markku Kankaanpää; Matti Luukkonen; Martti Kansanen; Osmo Hänninen; Olavi Airaksinen; Simo Taimela Journal: Spine (Phila Pa 1976) Date: 2003-04-15 Impact factor: 3.468