Study	Reason for exclusion
Albright 1993	Not a controlled trial
Albright 1995	Not a controlled trial ; intrathecal baclofen versus selective dorsal rhizotomy
Albright 1998	Not a controlled trial ; patients with dystonia
Albright 2000	Not a controlled trial ; patients with dystonia
Albright 2001	Not a controlled trial ; patients with dystonia
Albright 2003	Not a controlled trial
Albright 2004	Not a controlled trial
Albright 2006	Not a controlled trial
Aldohondo 2013	Not a controlled trial
Aleton 2012	Not a controlled trial
Almeida 1997	Case report
Anonymous 1996	News item
Awaad 2000	Not a controlled trial
Awaad 2003	Not a controlled trial
Ayyangar 2002	Not a controlled trial
Ayyangar 2005	Not a controlled trial
Ayyangar 2007	Not a controlled trial.
Ayyangar 2011	Not a controlled trial.
Baker 2012	Not a controlled trial
Barry 2001	Not a controlled trial.
Bensmail 2006	Not a controlled trial.
Bensmail 2009	Cost‐effectiveness modelling study.
Bjornson 2003	Not a controlled trial
Bleichman 2001	Not a controlled trial
Bleichman 2002	Not a controlled trial
Bleyenheuft 2007	Not a controlled trial
Bollo 2012	Not a controlled trial
Borowski 2008	Not a controlled trial.
Borowski 2010	Case series.
Bourg 2005	Not a controlled trial.
Bragg 2013	Not a controlled trial
Brochard 2009a	Case series.
Brochard 2009b	Case series.
Broseta 1990	Not a controlled trial.
Burn 2010	Case series
Cabrera 2004	Not a controlled trial
Caird 2008	Retrospective case‐control study.
Campbell 1999	Case series.
Campbell 2002	Retrospective review.
Charles 2010	Not a controlled study.
Church 2008	Not a controlled study.
Concalves 1994	Not a controlled trial.
Creedon 1997	Meta‐analysis.
Dachy 2004	Not a controlled trial ; patients with dystonia.
Damiano 2005	Not a controlled trial.
Dickey 2013	Not a controlled trial
Eldridge 2012	Not a controlled trial
Emery 2003	Review article.
Ethans 2005	Not a controlled trial.
Fares 1999	Case series.
Fares 2004	Case series.
Farfara 2007	Not a controlled trial
Filipetti 2006	Review.
Fitzgerald 2004	Not a controlled trial.
Gerszten 1997	Not a controlled trial.
Ginsburg 2002	Not a controlled trial.
Ginsburg 2007	Case series.
Giordano 2011	Not a controlled trial.
Gooch 2004	Case series
Gray 2007	Not a controlled trial.
Gutierrez‐Solana 2003	Case series
Hagglund 2005	Not a controlled trial.
Haranhalli 2011	Case series.
Henry‐Socha 2012	Not a controlled trial
Hester 2012	Not a controlled trial
Hoving 2008	Cost‐effectiveness analysis.
Hoving 2009b	Not a controlled trial.
Kashii 2012	Not a controlled trial
Kolaski 2007	Review.
Krach 1997	Not a controlled trial.
Krach 1999	Case series.
Krach 1999a	Case series
Krach 2003	Case series
Krach 2005	Not a controlled trial
Krach 2005a	No outcome measure relating to spasticity or gross motor function
Krach 2005b	Not a controlled trial
Krach 2005c	Not a controlled trial
Krach 2006	No outcome measure relating to spasticity or gross motor function
Krach 2009	Review article.
Krach 2010	Not a randomised trial
Latash 1996	< 90% participants with spastic cerebral palsy
Lazorthes 1990	Not a controlled trial
Leslie 1999	Treatment guideline
Martinez Moreno 2013	Not a controlled trial
McCoy 2006a	Not a controlled trial
McCoy 2006b	Not a controlled trial
McMahon 2003	Case series
Meythaler 2001	Case series
Moosa 2008	Not a controlled trial.
Morton 2011	Controlled trial in subset of patients meeting study criteria, as participants were excluded if they did not respond to an initial test dose of ITB
Motta 2000	Not a controlled trial
Motta 2001	Not a controlled trial
Motta 2002	Not a controlled trial
Motta 2004	Not a controlled trial
Motta 2004a	Not a controlled trial
Motta 2007	Case series
Motta 2008	Case series
Motta 2009	Not a controlled trial.
Motta 2011	Not a controlled trial.
Mukherjee 2002	Not a controlled trial
Muquit 2012	Not a controlled trial
Murphy 2002	Case series
Najarian 2012	Not a controlled trial
Ochs 1996	Not a controlled trial
Penn 1995	Not a controlled trial
Piccinini 1999	Case series
Piccinini 2001	No outcome measurement relating to spasticity or gross motor function
Pin 2011	Not a controlled trial
Pritula 2012	Not a controlled trial
Ramstad 2010	No a controlled trial
Rawicki 1999	Not a controlled trial
Revivo 2001	Not a controlled trial
Revivo 2002	Not a controlled trial
Rippe 2005	Not a controlled trial
Rippe 2005a	Not a controlled trial
Saltuari 1992	Not a controlled trial
Sansone 2006	Retrospective review.
Saval 2008	Case series
Scheinberg 2001	Not a controlled trial
Seneran 2007	Retrospective case‐control study
Sgouros 2002	Not a controlled trial
Shilt 2008	No measure of spasticity or gross motor function utilised
Silva 2012	Not a controlled trial
Simpson 1999	Review article
Sivakumar 2010	Not a controlled trial
Staal 2003	Retrospective review
Steinbok 1995	Not a controlled trial
Taira 2006	Not a controlled trial
Tasseel Ponche 2010	Not a controlled trial
Turner 2012	Not a controlled trial
Ughratadar 2012	Not a controlled trial
Ushewokunze 2012	Not a controlled trial
van Hulst 2009	Not a controlled trial
van Schaeybroeck 2000	< 90% patients aged 18 years or less
van Schie 2001	Patients with dystonia
Vitztum 2000	Treatment guideline
Vloeberghs 2005	Study yet to be completed ; protocol and pre‐intervention baseline comparisons published only
von Koch 2001	Review article
Ward 2009	Not a controlled trial
Wunderlich 2006	Not a controlled trial
Zdolsek 2011	Not a controlled trial
Zierski 1988	Not a controlled trial