L. A. Koman, B. P. Smith, J. S. Shilt, and . Palsy, Cerebral palsy, The Lancet, vol.363, issue.9421, pp.1619-1631, 2004.
DOI : 10.1016/S0140-6736(04)16207-7

M. N. Robinson, L. J. Peake, M. R. Ditchfield, S. M. Reid, A. Lanigan et al., Magnetic resonance imaging findings in a population-based cohort of children with cerebral palsy, Developmental Medicine & Child Neurology, vol.51, issue.1, pp.51-90, 2009.
DOI : 10.1111/j.1469-8749.2008.03127.x

M. Bax, C. Tydeman, and O. Flodmark, Clinical and MRI Correlates of Cerebral Palsy, JAMA, vol.296, issue.13, pp.1602-1608, 2006.
DOI : 10.1001/jama.296.13.1602

G. L. Andersen, R. Aydin, J. G. Becher, and G. Bernert, The updated european consensus 2009 on the use of botulinum toxin for children with cerebral palsy, Eur. J. Paediatr. Neurol. EJPN: Off. J. Eur. Paediatr. Neurol. Soc, vol.14, pp.45-66, 2010.

S. C. Love, I. Novak, M. Kentish, K. Desloovere, F. Heinen et al., Cerebral Palsy, I. Botulinum toxin assessment, intervention and after-care for lower limb spasticity in children with cerebral palsy: International consensus statement, Eur. J. Neurol. Off. J. Eur. Fed. Neurol. Soc, pp.17-26, 2010.

A. S. Papavasiliou, I. Nikaina, K. Foska, P. Bouros, G. Mitsou et al., Safety of Botulinum Toxin A in Children and Adolescents with Cerebral Palsy in a Pragmatic Setting, Toxins, vol.5, issue.3, pp.524-536, 2013.
DOI : 10.3390/toxins5030524

L. A. Koman, J. F. Mooney, B. Smith, A. Goodman, and T. Mulvaney, Management of Cerebral Palsy with Botulinum-A Toxin, Journal of Pediatric Orthopaedics, vol.13, issue.4, pp.489-495, 1993.
DOI : 10.1097/01241398-199307000-00013

A. P. Cosgrove, I. S. Corry, and H. K. Graham, BOTULINUM TOXIN IN THE MANAGEMENT OF THE LOWER LIMB IN CEREBRAL PALSY, Developmental Medicine & Child Neurology, vol.26, issue.5, pp.386-396, 1994.
DOI : 10.1111/j.1469-8749.1994.tb11864.x

H. K. Graham, K. R. Aoki, I. Autti-ramo, R. N. Boyd, M. R. Delgado et al., Recommendations for the use of botulinum toxin type A in the management of cerebral palsy, Gait & Posture, vol.11, issue.1, pp.67-79, 2000.
DOI : 10.1016/S0966-6362(99)00054-5

E. Morel, A. S. Papavassiliou, K. Tedroff, I. Pascual-pascual, and S. , European consensus table 2006 on botulinum toxin for children with cerebral palsy, Eur. J. Paediatr. Neurol. EJPN: Off. J. Eur. Paediatr. Neurol. Soc, vol.10, pp.215-225, 2006.

A. B. Ward, Spasticity treatment with botulinum toxins, Journal of Neural Transmission, vol.44, issue.2, pp.607-616, 2008.
DOI : 10.1007/s00702-007-0833-2

M. Arner, K. Himmelmann, E. Ponten, N. Stankovic, T. Hansson et al., Upper extremity botulinum toxin treatment in cerebral palsy. Treatment guidelines the first step towards national cooperation, Lakartidningen, vol.105, pp.3009-3013, 2008.

R. Garreta-figuera and J. Chaler-vilaseca, Torrequebrada-Gimenez, A. Clinical practice guidelines for the treatment of spasticity with botulinum toxin, Revista Neurol, vol.50, pp.685-699, 2010.

I. Bori-fortuny, P. J. Garcia-ruiz, R. Garreta-figuera, and G. Lanzas-melendo, Leon, I.; et al. Guidelines for the treatment of child spasticity using botulinum toxin, Revista Neurol, vol.de Miguel-, pp.44-303, 2007.

D. Leitlinie, Available online: http://www.dgn.org/leitl.shtml (accessed on, 2012.

M. A. Whelan and M. R. Delgado, PRACTICE PARAMETER: PHARMACOLOGIC TREATMENT OF SPASTICITY IN CHILDREN AND ADOLESCENTS WITH CEREBRAL PALSY (AN EVIDENCE-BASED REVIEW): REPORT OF THE QUALITY STANDARDS SUBCOMMITTEE OF THE AMERICAN ACADEMY OF NEUROLOGY AND THE PRACTICE COMMITTEE OF THE CHILD NEUROLOGY SOCIETY, Neurology, vol.75, issue.7, pp.75-669, 2010.
DOI : 10.1212/WNL.0b013e3181ec670b

G. Hagglund, S. Andersson, H. Duppe, H. Lauge-pedersen, E. Nordmark et al., Prevention of severe contractures might replace multilevel surgery in cerebral palsy: results of a population-based health care programme and new techniques to reduce spasticity, Journal of Pediatric Orthopaedics B, vol.14, issue.4, pp.269-273, 2005.
DOI : 10.1097/01202412-200507000-00007

F. Fitoussi, A. Diop, N. Maurel, M. Ilharreborde, B. Pennecot et al., Upper limb motion analysis in children with hemiplegic cerebral palsy: proximal kinematic changes after distal botulinum toxin or surgical treatments, Journal of Children's Orthopaedics, vol.5, issue.5, pp.363-370, 2011.
DOI : 10.1007/s11832-011-0365-z

G. Molenaers, K. Desloovere, J. De-cat, I. Jonkers, L. De-borre et al., Single event multilevel botulinum toxin type A treatment and surgery: similarities and differences, European Journal of Neurology, vol.10, issue.s5, pp.8-88, 2001.
DOI : 10.1016/0966-6362(95)01054-8

L. Turner-stokes, Goal attainment scaling (GAS) in rehabilitation: a practical guide, Clinical Rehabilitation, vol.23, issue.4, pp.362-370, 2009.
DOI : 10.1177/0269215508101742

R. Baker and M. Jasinski, Maciag-Tymecka, I.; Michalowska-Mrozek, J.; Bonikowski, M

J. Maclean, J. P. Lin, B. Lynch, and T. Theologis, Botulinum toxin treatment of spasticity in diplegic cerebral palsy: A randomized, double-blind, placebo-controlled, dose-ranging study, Dev. Med. Child Neurol, pp.44-666, 2002.

P. Kanovsky, M. Bares, S. Severa, and A. Richardson, Dysport Paediatric Limb Spasticity Study Group. Long-term efficacy and tolerability of 4-monthly versus yearly botulinum toxin type a treatment for lower-limb spasticity in children with cerebral palsy, Dev. Med. Child Neurol, pp.51-436, 2009.

R. Boyd, S. Fatone, J. Rodda, C. Olesch, R. Starr et al., High-or low-technology measurements of energy expenditure in clinical gait analysis? Dev. Med. Child Neurol, pp.41-676, 1999.

K. Desloovere, G. Molenaers, I. Jonkers, J. De-cat, L. De-borre et al., A randomized study of combined botulinum toxin type A and casting in the ambulant child with cerebral palsy using objective outcome measures, European Journal of Neurology, vol.30, issue.s5, pp.75-87, 2001.
DOI : 10.1016/0966-6362(95)01054-8

F. Heinen, A. S. Schroeder, U. Fietzek, and S. Berweck, When it comes to botulinum toxin, children and adults are not the same: Multimuscle option for children with cerebral palsy, Movement Disorders, vol.39, issue.11, 2006.
DOI : 10.1002/mds.21097

H. M. Dumas, M. E. Neil, and M. A. Fragala, Expert consensus on physical therapist intervention after botulinum toxin a injection for children with cerebral palsy, Pediatr. Phys. Ther. Off. Publ. Sect. Pediatr. Am. Phys. Ther. Assoc, vol.13, pp.122-132, 2001.

M. Mayston, Evidence-based physical therapy for the management of children with cerebral palsy, Dev. Med. Child Neurol, pp.47-795, 2005.

E. M. Figueiredo, G. B. Ferreira, R. C. Maia-moreira, R. N. Kirkwood, and L. Fetters, Efficacy of Ankle-Foot Orthoses on Gait of Children with Cerebral Palsy: Systematic Review of Literature, Pediatric Physical Therapy, vol.20, issue.3, pp.207-223, 2008.
DOI : 10.1097/PEP.0b013e318181fb34

B. J. Hoare, M. A. Wallen, C. Imms, E. Villanueva, H. B. Rawicki et al., Botulinum toxin A as an adjunct to treatment in the management of the upper limb in children with spastic cerebral palsy (UPDATE), Cochrane Database Syst. Rev, vol.12, issue.4, 2010.
DOI : 10.1002/14651858.CD003469.pub4

M. Bottos, M. G. Benedetti, P. Salucci, V. Gasparroni, and S. Giannini, Botulinum toxin with and without casting in ambulant children with spastic diplegia: A clinical and functional assessment, Dev. Med. Child Neurol, pp.45-758, 2003.

J. D. Ackman, B. S. Russman, S. S. Thomas, C. E. Buckon, M. D. Sussman et al., Shriners Hospitals BTX-A Study Group. Comparing botulinum toxin a with casting for treatment of dynamic equinus in children with cerebral palsy, Dev. Med. Child Neurol, pp.47-620, 2005.

A. M. Glanzman, H. Kim, K. Swaminathan, and T. Beck, Efficacy of botulinum toxin A, serial casting, and combined treatment for spastic equinus: a retrospective analysis, Developmental Medicine & Child Neurology, vol.42, issue.Suppl. 5, pp.807-811, 2004.
DOI : 10.1111/j.1469-8749.2004.tb00445.x

R. M. Kay, S. A. Rethlefsen, A. Fern-buneo, T. A. Wren, and D. L. Skaggs, BOTULINUM TOXIN AS AN ADJUNCT TO SERIAL CASTING TREATMENT IN CHILDREN WITH CEREBRAL PALSY, The Journal of Bone and Joint Surgery-American Volume, vol.86, issue.11, p.86, 23772384.
DOI : 10.2106/00004623-200411000-00003

S. Hayek, A. Gershon, S. Wientroub, and Z. Yizhar, The effect of injections of botulinum toxin type A combined with casting on the equinus gait of children with cerebral palsy, Journal of Bone and Joint Surgery - British Volume, vol.92, issue.8, pp.1152-1159, 2010.
DOI : 10.1302/0301-620X.92B8.23086

E. S. Park, D. W. Rha, J. K. Yoo, S. M. Kim, W. H. Chang et al., Short-Term Effects of Combined Serial Casting and Botulinum Toxin Injection for Spastic Equinus in Ambulatory Children with Cerebral Palsy, Yonsei Medical Journal, vol.51, issue.4, pp.51-579, 2010.
DOI : 10.3349/ymj.2010.51.4.579

E. Rutz, E. Hofmann, and R. Brunner, Preoperative botulinum toxin test injections before muscle lengthening in cerebral palsy, Journal of Orthopaedic Science, vol.15, issue.5, pp.647-653, 2010.
DOI : 10.1007/s00776-010-1509-6

P. E. Van-schie, M. Schothorst, A. J. Dallmeijer, R. J. Vermeulen, W. J. Van-ouwerkerk et al., Short- and long-term effects of selective dorsal rhizotomy on gross motor function in ambulatory children with spastic diplegia, Journal of Neurosurgery: Pediatrics, vol.7, issue.5, pp.557-562, 2011.
DOI : 10.3171/2011.2.PEDS10452

A. B. Scott, Botulinum toxin injection of eye muscles to correct strabismus, Trans. Am. Ophthalmol. Soc, pp.79-734, 1981.

A. B. Scott, A. Rosenbaum, and C. C. Collins, Pharmacologic weakening of extraocular muscles, Investig. Ophthalmol, vol.12, pp.924-927, 1973.

A. B. Ward, G. Molenaers, C. Colosimo, and A. Berardelli, Clinical value of botulinum toxin in neurological indications, European Journal of Neurology, vol.6, issue.4, pp.13-20, 2006.
DOI : 10.1046/j.1468-1331.2001.00040.x

D. Fehlings, M. Rang, J. Glazier, and C. Steele, Botulinum toxin type A injections in the spastic upper extremity of children with hemiplegia: child characteristics that predict a positive outcome, European Journal of Neurology, vol.46, issue.s5, pp.8-145, 2001.
DOI : 10.1067/mpd.2000.108393

M. J. Goldberg, Botulinum toxin type A improved ankle function in children with cerebral palsy and dynamic equinus foot deformity, The Journal of Bone and Joint Surgery-American Volume, vol.82, issue.6, 2000.
DOI : 10.2106/00004623-200006000-00016

S. C. Love, J. P. Valentine, E. M. Blair, C. J. Price, J. H. Cole et al., The effect of botulinum toxin type A on the functional ability of the child with spastic hemiplegia a randomized controlled trial, European Journal of Neurology, vol.33, issue.s5, pp.8-50, 2001.
DOI : 10.1016/S0887-8994(97)00164-1

D. Metaxiotis, A. Siebel, and L. Doederlein, Repeated Botulinum Toxin A Injections in the Treatment of Spastic Equinus Foot, Clinical Orthopaedics and Related Research, vol.394, pp.177-185, 2002.
DOI : 10.1097/00003086-200201000-00021

T. Ubhi, B. B. Bhakta, H. L. Ives, V. Allgar, and S. H. Roussounis, Randomised double blind placebo controlled trial of the effect of botulinum toxin on walking in cerebral palsy, Archives of Disease in Childhood, vol.83, issue.6, pp.481-487, 2000.
DOI : 10.1136/adc.83.6.481

J. Wissel, F. Heinen, A. Schenkel, B. Doll, G. Ebersbach et al., Botulinum Toxin A in the Management of Spastic Gait Disorders in Children and Young Adults with Cerebral Palsy: A Randomized, Double-Blind Study of "High-Dose" versus "Low-Dose" Treatment*, Neuropediatrics, vol.30, issue.03, pp.120-124, 1999.
DOI : 10.1055/s-2007-973475

E. Fazzi, I. Maraucci, S. Torrielli, F. Motta, and G. Lanzi, Factors Predicting the Efficacy of Botulinum Toxin-A Treatment of the Lower Limb in Children With Cerebral Palsy, Journal of Child Neurology, vol.16, issue.4, pp.661-666, 2005.
DOI : 10.1177/08830738050200080501

M. Gough, C. Fairhurst, and A. P. Shortland, Botulinum toxin and cerebral palsy: Time for reflection? Dev, Med. Child Neurol, pp.47-709, 2005.

G. Hagglund, S. Andersson, H. Duppe, H. Lauge-pedersen, E. Nordmark et al., Prevention of dislocation of the hip in children with cerebral palsy. The first ten years of a population-based prevention programme, J. Bone Joint Surg. Br, vol.87, pp.95-101, 2005.

G. Molenaers, V. Schorkhuber, K. Fagard, A. Van-campenhout, J. De-cat et al., Long-term use of botulinum toxin type A in children with cerebral palsy: Treatment consistency, European Journal of Paediatric Neurology, vol.13, issue.5, pp.421-429, 2009.
DOI : 10.1016/j.ejpn.2008.07.008

M. Naumann, A. Albanese, F. Heinen, G. Molenaers, and M. Relja, Safety and efficacy of botulinum toxin type A following long-term use, European Journal of Neurology, vol.22, issue.5, pp.13-35, 2006.
DOI : 10.1007/s004150050345

A. W. Willis, B. Crowner, J. E. Brunstrom, A. Kissel, and B. A. Racette, High dose botulinum toxin A for the treatment of lower extremity hypertonicity in children with cerebral palsy, Developmental Medicine & Child Neurology, vol.93, issue.11, pp.49-818, 2007.
DOI : 10.1111/j.1469-8749.2007.00818.x

B. E. Crowner, J. E. Brunstrom, and B. A. Racette, Iatrogenic Botulism Due to Therapeutic Botulinum Toxin A Injection in a Pediatric Patient, Clinical Neuropharmacology, vol.30, issue.5, pp.310-313, 2007.
DOI : 10.1097/WNF.0b013e31804b1a0d

K. Howell, P. Selber, H. K. Graham, and D. Reddihough, Botulinum neurotoxin A: An unusual systemic effect, Journal of Paediatrics and Child Health, vol.10, issue.6, pp.499-501, 2007.
DOI : 10.1046/j.1468-1331.2001.00041.x

K. Naidu, K. Smith, M. Sheedy, B. Adair, X. Yu et al., Systemic adverse events following botulinum toxin A therapy in children with cerebral palsy, Developmental Medicine & Child Neurology, vol.334, issue.Suppl 5, pp.139-144, 2010.
DOI : 10.1111/j.1469-8749.2009.03583.x

A. M. Bakheit, The use of botulinum toxin for the treatment of muscle spasticity in the first 2 years of life, International Journal of Rehabilitation Research, vol.33, issue.2, pp.104-108, 2010.
DOI : 10.1097/MRR.0b013e32832c1e91

K. Graham, Safety of botulinum toxin a in cerebral palsy, Toxicon: Off. J. Int. Soc. Toxinol, pp.51-52, 2008.

B. Galuppi, Validation of a model of gross motor function for children with cerebral palsy, Phys. Ther, vol.80, pp.974-985, 2000.

U. Ryll, C. Bastiaenen, R. De-bie, and B. Staal, Effects of leg muscle botulinum toxin A injections on walking in children with spasticity-related cerebral palsy: a systematic review, Developmental Medicine & Child Neurology, vol.134, issue.3, pp.210-216, 2011.
DOI : 10.1111/j.1469-8749.2010.03890.x

R. Placzek, Botulinum toxin a in children with infantile cerebral palsy: Indications and treatment concepts. Der, 2010.

R. Placzek, D. Siebold, and J. Funk, Development of Treatment Concepts for the Use of Botulinum Toxin A in Children with Cerebral Palsy, Toxins, vol.2, issue.9, pp.2258-2271, 2010.
DOI : 10.3390/toxins2092258

Y. Wang and B. Gao, A dose???response relationship research on botulinum toxin type A local intramuscular injections of lower extremity spasticity in children with cerebral palsy, Child's Nervous System, vol.83, issue.5, pp.545-547, 2008.
DOI : 10.1007/s00381-007-0571-7

K. Wohlfarth, C. Muller, I. Sassin, G. Comes, and S. Grafe, Neurophysiological Double-Blind Trial of a Botulinum Neurotoxin Type A Free of Complexing Proteins, Clinical Neuropharmacology, vol.30, issue.2, pp.86-94, 2007.
DOI : 10.1097/01.WNF.0000240951.18821.50

A. Russell and E. Cotton, The Petö System and Its Evolution in Britain; Acorn Foundation, 1994.

D. J. Russell, L. M. Avery, P. L. Rosenbaum, P. S. Raina, S. D. Walter et al., Improved scaling of the gross motor function measure for children with cerebral palsy: Evidence of reliability and validity, Phys. Ther, vol.80, pp.873-885, 2000.

T. M. Wijnhoven, M. De-onis, A. W. Onyango, T. Wang, G. E. Bjoerneboe et al., Assessment of Gross Motor Development in the WHO Multicentre Growth Reference Study, Food and Nutrition Bulletin, vol.25, issue.1, pp.37-45, 2004.
DOI : 10.1177/15648265040251S105

W. J. Kargo and D. A. Nitz, Early skill learning is expressed through selection and tuning of cortically represented muscle synergies, J. Neurosci. Off. J. Soc. Neurosci, vol.23, pp.11255-11269, 2003.

O. Hikosaka, K. Nakamura, K. Sakai, and H. Nakahara, Central mechanisms of motor skill learning, Current Opinion in Neurobiology, vol.12, issue.2, pp.217-222, 2002.
DOI : 10.1016/S0959-4388(02)00307-0

M. A. Maier, J. Armand, P. A. Kirkwood, H. W. Yang, J. N. Davis et al., Differences in the Corticospinal Projection from Primary Motor Cortex and Supplementary Motor Area to Macaque Upper Limb Motoneurons: An Anatomical and Electrophysiological Study, Cerebral Cortex, vol.12, issue.3, pp.281-296, 2002.
DOI : 10.1093/cercor/12.3.281

F. S. Pidcock, D. E. Fish, D. Johnson-greene, I. Borras, J. Mcgready et al., Hip migration percentage in children with cerebral palsy treated with botulinum toxin type A, Archives of Physical Medicine and Rehabilitation, vol.86, issue.3, pp.431-435, 2005.
DOI : 10.1016/j.apmr.2004.03.034

C. Druschel, H. C. Althuizes, J. F. Funk, and R. Placzek, Off Label Use of Botulinum Toxin in Children under Two Years of Age: A Systematic Review, Toxins, vol.5, issue.1, pp.60-72, 2013.
DOI : 10.3390/toxins5010060

S. I. Pascual-pascual, Safety of botulinum toxin type A in children younger than 2 years, European Journal of Paediatric Neurology, vol.13, issue.6, pp.511-515, 2009.
DOI : 10.1016/j.ejpn.2008.10.006

D. Siebold and S. Rickensdorf, Neurologische rehabilitation von kindern mit hirnschä digung im ersten und zweiten lebensjahr?Berliner modell, Praxis Ergotherapie, 2009.

K. Graham, H. Selber, and P. , Musculoskeletal aspects of cerebral palsy, The Journal of Bone and Joint Surgery, vol.85, issue.2, pp.157-166, 2003.
DOI : 10.1302/0301-620X.85B2.14066

D. Steenbeek, M. Ketelaar, K. Galama, and J. W. Gorter, Goal attainment scaling in paediatric rehabilitation: a critical review of the literature, Developmental Medicine & Child Neurology, vol.36, issue.7, pp.49-550, 2007.
DOI : 10.1111/j.1469-8749.2007.00550.x

D. Steenbeek, A. Meester-delver, J. G. Becher, and G. J. Lankhorst, The effect of botulinum toxin type A treatment of the lower extremity on the level of functional abilities in children with cerebral palsy: evaluation with goal attainment scaling, Clinical Rehabilitation, vol.7, issue.5, pp.274-282, 2005.
DOI : 10.1191/0269215505cr859oa

R. W. Bohannon and M. B. Smith, Interrater Reliability of a Modified Ashworth Scale of Muscle Spasticity, Physical Therapy, vol.67, issue.2, pp.67-206, 1987.
DOI : 10.1093/ptj/67.2.206

V. A. Scholtes, J. G. Becher, A. Beelen, and G. J. Lankhorst, Clinical assessment of spasticity in children with cerebral palsy: a critical review of available instruments, Developmental Medicine & Child Neurology, vol.91, issue.01, pp.48-64, 2006.
DOI : 10.1111/j.1469-8749.2003.tb00418.x

A. A. Alhusaini, C. M. Dean, J. Crosbie, R. B. Shepherd, and J. Lewis, Evaluation of Spasticity in Children With Cerebral Palsy Using Ashworth and Tardieu Scales Compared With Laboratory Measures, Journal of Child Neurology, vol.25, issue.10, pp.1242-1247, 2010.
DOI : 10.1177/0883073810362266

J. M. Gracies, K. Burke, N. J. Clegg, R. Browne, C. Rushing et al., Reliability of the Tardieu Scale for Assessing Spasticity in Children With Cerebral Palsy, Archives of Physical Medicine and Rehabilitation, vol.91, issue.3, pp.91-421, 2010.
DOI : 10.1016/j.apmr.2009.11.017

H. Bourke-taylor, Melbourne assessment of unilateral upper limb function: Construct validity and correlation with the pediatric evaluation of disability inventory, Dev. Med. Child Neurol, pp.45-92, 2003.

L. M. Johnson, M. J. Randall, D. S. Reddihough, L. E. Oke, T. A. Byrt et al., DEVELOPMENT OF A CLINICAL ASSESSMENT OF QUALITY OF MOVEMENT FOR UNILATERAL UPPER-LIMB FUNCTION, Developmental Medicine & Child Neurology, vol.54, issue.11, pp.965-973, 1994.
DOI : 10.1111/j.1469-8749.1994.tb11792.x

L. Krumlinde-sundholm, M. Holmefur, A. Kottorp, and A. C. Eliasson, The Assisting Hand Assessment: current evidence of validity, reliability, and responsiveness to change, Developmental Medicine & Child Neurology, vol.85, issue.4, pp.49-259, 2007.
DOI : 10.1111/j.1469-8749.2007.00259.x

A. C. Plint, I. Gaboury, J. Owen, and N. L. Young, Activities Scale for Kids, Journal of Pediatric Orthopaedics, vol.23, issue.6, pp.788-790, 2003.
DOI : 10.1097/01241398-200311000-00018

V. Cimolin, M. Galli, L. Piccinini, M. Berti, M. Crivellini et al., Quantitative analysis of gait pattern and energy consumption in children with cerebral palsy, J. Appl. Biomater. Biomechan. JABB, vol.5, pp.28-33, 2007.

V. A. Scholtes, A. J. Dallmeijer, D. L. Knol, L. A. Speth, C. G. Maathuis et al., The Combined Effect of Lower-Limb Multilevel Botulinum Toxin Type A and Comprehensive Rehabilitation on Mobility in Children With Cerebral Palsy: A Randomized Clinical Trial, Archives of Physical Medicine and Rehabilitation, vol.87, issue.12, pp.1551-1558, 2006.
DOI : 10.1016/j.apmr.2006.08.342

E. Viehweger, S. Robitail, M. A. Rohon, M. Jacquemier, J. L. Jouve et al., Measuring quality of life in cerebral palsy children, Annales de R??adaptation et de M??decine Physique, vol.51, issue.2
DOI : 10.1016/j.annrmp.2007.12.007

J. Vinson, L. Shank, P. D. Thomas, and S. Warschausky, Self-generated Domains of Quality of Life in Children with and Without Cerebral Palsy, Journal of Developmental and Physical Disabilities, vol.42, issue.Suppl. 4, pp.497-508, 2010.
DOI : 10.1007/s10882-010-9187-z

K. Ramstad, R. Jahnsen, O. H. Skjeldal, and T. Diseth, Mental health, health related quality of life and recurrent musculoskeletal pain in children with cerebral palsy 8???18 years old, Disability and Rehabilitation, vol.13, issue.2, pp.1589-1595, 2012.
DOI : 10.1111/j.1469-8749.2011.04014.x

K. Schweizer, J. Romkes, and R. Brunner, The association between premature plantarflexor muscle activity, muscle strength, and equinus gait in patients with various pathologies, Research in Developmental Disabilities, vol.34, issue.9, pp.2676-2683, 2013.
DOI : 10.1016/j.ridd.2013.05.025

K. Schweizer, J. Romkes, M. Coslovsky, and R. Brunner, The influence of muscle strength on the gait profile score (GPS) across different patients, Gait & Posture, vol.39, issue.1, 2014.
DOI : 10.1016/j.gaitpost.2013.06.001

G. Kranz, D. Haubenberger, B. Voller, M. Posch, P. Schnider et al., Respective potencies of Botox?? and Dysport?? in a human skin model: A randomized, double-blind study, Movement Disorders, vol.5, issue.2, pp.231-236, 2009.
DOI : 10.1002/mds.22336

F. Ahmed, Retrospective evaluation of the dose of dysport and botox in the management of cervical dystonia and blepharospasm: The real dose study, Mov. Disord. Off. J. Mov. Disord. Soc, vol.20, pp.937-944, 2005.

K. Wohlfarth, T. Sycha, D. Ranoux, H. Naver, and D. Caird, Dose equivalence of two commercial preparations of botulinum neurotoxin type A: time for a reassessment?, Current Medical Research and Opinion, vol.25, issue.7, pp.1573-1584, 2009.
DOI : 10.1185/03007990903028203

URL : https://hal.archives-ouvertes.fr/hal-00627967

K. M. Shannon, J. P. Bennett, . Jr, and J. H. Friedman, Efficacy of pramipexole, a novel dopamine agonist, as monotherapy in mild to moderate Parkinson's disease, Neurology, vol.49, issue.3, pp.724-728, 1997.
DOI : 10.1212/WNL.49.3.724

R. Fortuna, M. A. Vaz, A. R. Youssef, D. Longino, and W. Herzog, Changes in contractile properties of muscles receiving repeat injections of botulinum toxin (Botox), Journal of Biomechanics, vol.44, issue.1, pp.44-83, 2011.
DOI : 10.1016/j.jbiomech.2010.08.020

C. Park, K. Park, and J. Kim, ??????????????????A??????????????????????????????????????????????????????, Journal of Zhejiang University-SCIENCE B, vol.16, issue.1, pp.46-51, 2015.
DOI : 10.1631/jzus.B1400192

L. A. Koman, A. Goodman, and B. P. Smith, Botulinum Toxin Type a in the Management of Cerebral Palsy, 2002.

T. Y. Chin, G. R. Nattrass, P. Selber, and H. K. Graham, Accuracy of Intramuscular Injection of Botulinum Toxin A in Juvenile Cerebral Palsy, Journal of Pediatric Orthopaedics, vol.25, issue.3, pp.286-291, 2005.
DOI : 10.1097/01.bpo.0000150819.72608.86

F. M. Molloy, H. A. Shill, A. Kaelin-lang, and B. Karp, Accuracy of muscle localization without EMG: Implications for treatment of limb dystonia, Neurology, vol.58, issue.5, pp.805-807, 2002.
DOI : 10.1212/WNL.58.5.805

B. Westhoff, K. Seller, A. Wild, M. Jaeger, and R. Krauspe, Ultrasound-guided botulinum toxin injection technique for the iliopsoas muscle, Dev. Med. Child Neurol, pp.45-829, 2003.

M. J. Willenborg, J. S. Shilt, B. P. Smith, R. L. Estrada, J. A. Castle et al., Technique for Iliopsoas Ultrasound-Guided Active Electromyography-Directed Botulinum A Toxin Injection in Cerebral Palsy, Journal of Pediatric Orthopaedics, vol.22, issue.2, pp.165-168, 2002.
DOI : 10.1097/01241398-200203000-00005

A. G. Py, G. Zein-addeen, Y. Perrier, R. Y. Carlier, and A. Picard, Evaluation of the effectiveness of botulinum toxin injections in the lower limb muscles of children with cerebral palsy. Preliminary prospective study of the advantages of ultrasound guidance, Annals of Physical and Rehabilitation Medicine, vol.52, issue.3, pp.52-215, 2009.
DOI : 10.1016/j.rehab.2009.02.005

M. K. Childers, J. N. Kornegay, R. Aoki, L. Otaviani, D. J. Bogan et al., Evaluating motor end-plate-targeted injections of botulinum toxin type A in a canine model, Muscle & Nerve, vol.20, issue.5, pp.653-655, 1998.
DOI : 10.1002/(SICI)1097-4598(199805)21:5<653::AID-MUS15>3.0.CO;2-W