Dr Claudia Maizen

Sub-specialties: Orthopaedic Surgery, Paediatric Orthopaedics and Trauma.

02036532002

Overview

Dr Claudia Maizen has over 20 years experience in treating all paediatric orthopaedic conditions including paediatric fractures and injuries with a specific interest and expertise in the management of developmental dysplasia of the hip (DDH) and treatment of neuromuscular conditions (i.e. cerebral palsy).

About Dr Claudia Maizen

Ms Claudia Maizen is a leading children’s orthopaedic consultant renowned for her compassionate approach and unwavering dedication to her young patients. As an accomplished surgeon based at The Royal London Hospital, part of Barts Health NHS Trust, she delivers top-tier medical care, specialising in the full range of paediatric orthopaedic disorders affecting children of all ages.

Her clinical focus is substantial, with a particularly strong interest in children’s trauma and the comprehensive treatment of neuromuscular conditions such as cerebral palsy. However, her expertise extends far beyond this. Dr Maizen is exceptionally skilled in managing hip conditions such as developmental dysplasia of the hip (DDH), Perthes disease, and slipped capital femoral epiphysis (SCFE), as well as complex deformities requiring guided growth surgery and treatments for foot and ankle disorders in children.

In her practice, Dr Maizen prioritises non-surgical interventions wherever possible. She takes time with her patients and their families to educate them about orthopaedic care and the potential for non-invasive treatments. Surgery is reserved only for cases where it is deemed absolutely necessary, as she strongly believes that not all orthopaedic concerns warrant surgical procedures. Her comprehensive initial consultations ensure a thorough understanding of each child’s unique situation before recommending effective treatment.

A graduate of the prestigious University Children’s Hospital Graz in Austria—one of the country’s largest paediatric referral centres — Dr Maizen was mentored by the esteemed Professor Graf. Under his guidance, she developed a special interest in hip ultrasound screening and treatment for DDH, co-authoring the influential book Sonography of the Infant’s Hip. Her academic achievements are reflected in her substantial body of work, which includes numerous book chapters and publications in peer-reviewed journals. She also serves as a principal investigator for several multicentre studies and as a reviewer and subspecialty editor in her field.

As a founding and board member of the International Interdisciplinary Consensus Committee for DDH Evaluation (ICODE) and chair of its education committee, she plays an active role in shaping the future of international hip ultrasound training and DDH screening. In addition, she contributes to various professional committees dedicated to promoting excellence in paediatric orthopaedics.

Her passion for education is further demonstrated through her involvement in international teaching, including the prestigious Graf hip ultrasound courses that she organises in London. Beyond her clinical and academic work, Dr Maizen’s humanitarian spirit shines through her outreach in Africa and Mongolia, where she not only provides essential orthopaedic care to children but also trains local surgeons to elevate the standard of care in their regions.

Since joining The Royal London Hospital as a consultant in 2010, Dr Maizen has played a pivotal role in developing a highly regarded paediatric neuromuscular service, including a BTX service for children with cerebral palsy. Embracing a holistic approach, she expertly manages a wide spectrum of paediatric orthopaedic conditions, drawing on her extensive experience in paediatric trauma to meet the complex needs of her young patients. Through her expertise and empathy, Dr Maizen is dedicated to helping children recover, grow, and return to full and active lives. Her profound experience and unwavering compassion continue to drive her commitment to improving the orthopaedic health and well-being of children both locally and globally.

Areas of Expertise

Dr Claudia Maizen treats the following conditions:

DDH (hip dislocation, hip dysplasia)
Cerebral Palsy
Pait abnormalities
Foot deformities
Club foot
Flat feet
CVT
Bunions
Tarsal coalition

She offers surgical and non surgical treatment of all paediatric orthopaedic conditions including:

Paediatric hip conditions
Foot deformities
Adolescent bunion surgery
Flat feet
Tarsal coalition
Paediatric fractures
Scoliosis screening
DDH screening
Hip ultrasound
Ponseti treatment

Additional Information

Dr Claudia Maizen holds the following qualifications: MD, FRCS

She is an active member of:

Fellow of the Royal Colleges of Surgeons
British Society for Children’s Orthopaedic Surgery
British Society for Surgery in Cerebral Palsy
International Interdisciplinary Consensus Committee for DDH Evaluation

Dr Maizen currently holds clinical posts at:

Consultant Paediatric Orthopaedic and Trauma Surgeon, Welbeck London
Consultant Paediatric Orthopaedic and Trauma Surgeon, The Royal London Hospital
Consultant Paediatric Orthopaedic and Trauma Surgeon, Barts Health
Consultant Paediatric Orthopaedic and Trauma Surgeon, The Cromwell Hospital
Consultant Paediatric Orthopaedic and Trauma Surgeon, The Portland Hospital
Consultant Paediatric Orthopaedic and Trauma Surgeon, OS clinic

She is the recipient of the following professional awards:

Clinical Excellence Awards (CEA), NHS

Research Highlights

Key publications:

Books

R. Graf, C. Maizen, T. Seidl
Sonography of the infants hip: Principles, implementation and therapeutic consequences, Springer, Ed. 2024, ISBN-10 3031719484, ISBN-13 978-3031719468

Book Chapters

Maizen C. Chlapoutakis K., Persaud T.: Comparison of Sonographic Techniques, Developmental Dysplasia of the hip 01/2022. DOI: 10.1007/978-3-030-94956-3_10
Chlapoutakis K., Kolovos S., Tarrant A., Maizen C.: Hip Sonography According to Graf, Developmental Dysplasia of the hip 01/2022. DOI: 10.1007/978-3-030-94956-3_9
Persaud T., Chlapoutakis K., Maizen C., Baltas C.: Freehand Sonographic Techniques, Developmental Dysplasia of the hip 01/2022. DOI: 10.1007/978-3-030-94956-3_8
AlQuemzi M., Maizen C., DePellegrin M., Alshryda S.: Early Detection of Hip Dysplasia, Developmental Dysplasia of the hip 01/2022. DOI: 10.1007/978-3-030-94956-3_7
Kolovos S., Maizen C., DePellegrin M., Placzek R.: Sonographic Based Treatment, Developmental Dysplasia of the hip 01/2022. DOI: 10.1007/978-3-030-94956-3_11.
Placzek R., Maizen C., DePellegrin M., Kolovos S.: Further Treatment, Developmental Dysplasia of the hip 01/2022 DOI: 10.1007/978-3-030-94956-3_12
Tzatzairis T., Nivatsi M., Maizen C.: Child Safeguarding, Paediatric Orthopaedics for Primary Healthcare, 06/2021, pages 283-292, DOI: 10.1007/978-3-030-65214-2_12
Joanna Thomas, Claudia Maizen: Trauma of the Knee. Paediatric Orthopaedic Trauma in Clinical Practice, 01/2015: pages 105-127;, ISBN: 978-1-4471-6755-6
Anna C. Peek, Claudia Maizen: Ankle Injuries. Paediatric Orthopaedic Trauma in Clinical Practice, 01/2015: pages 145-159;, ISBN: 978-1-4471-6755-6

Journal Publications

A.Cosgrove, C. Maizen. Detection and treat,ment of developmental dysplasia of the hip (DDH) in infants: Updates and recommendations. Current opinion in Paediatrics 2025 Feb 1;37(1):88-93. Doi: 10.109/MOP.0000000000001420.Epub 2024 Nov 28.PMID: 39699106
K. Chlapoutakis, J O’Beirne, B. Dubs, C. Maizen, S. Placzek, C. Casini, T.Tzatzairis ICODE hip US calculator: a mobile phone aid to screening with Graf’s sonographic technique. Journal of Ultrasonography. 2024 Dec 23;24(99):1-5.doi:10.15557/jou.2024.0033. PMID:39720469;PMCID: PMC11665053
N. Burkitt, E. Karam, d. Ferguson, D. Pinto, C. Maizen: A systematic review of DDH screening practices in the UK. Explor Musculoskeletal Dis. 2024;2:181–8. https://doi.org/10.37349/emd.2024.00047
Jones NJ, Zarook E, Ayub A, Manoukian D, Maizen C, Bijlsma P, Ramachandran M, Firth G. Postoperative Immobilization Period for Pediatric Supracondylar Fractures: The Shorter the Better? J Pediatr Orthop. 2024 Apr 1;44(4):203-207. doi: 10.1097/BPO.0000000000002636. Epub 2024 Feb 8. PMID: 38329322.
K. Chlapoutakis, C. Maizen, S. Placzek, J O’Beirne, B. Dubs, C. Casini, T.Tzatzairis: Hip sonography according to Graf: practical notes for the student, the examiner and the reviewer. Med Ultrason 2023:0, 1-13 Online first, DOI 10.11152/mu-4194
A. Ayub, C. Graff, L.M. Horvath, C. Maizen: Hip reconstruction in cerebral palsy: Lessons from a single center and 137 hips, J Childrens Orthopaedics, Sept 23, DOI:10.1177/18632521231196846, CC BY-NC4.0
A Zaghloul, D Manoukian, M Barrett, I Geronta, C Maizen: Functional and ClinicalOutcomes of Combined Simultaneous Bilateral Anterior Distal Femoral Plate Hemiepiphyseodesis and Hamstrings Release in Management of Knee Flexion Contractures in Children With Neuromuscular Disorders. J Pediatric Orthopedics 10/2021;Vol41-9: p559-565. DOI:10.1097/BPO.0000000000001942
T Tzatzairis, G Firth, P Bijlsma, C Maizen, M Ramachandran: Radiation Exposure in The Treatment of Paediatric Supracondylar Humerus Fractures: Comparison of Two Fixation Methods. Open Orthopaedic Journal, 04/2021;Vol 15: p22-26. DOI:102174/1874325002115010022
T Tzatzairis, S McMahon, J Shilpa, C Maizen: Safety and efficiacy of tranexamic acid in children with cerebral palsy undergoing femoral varus derotation osteotomy: a double cohort study. European Journal of Orthopaedic Surgery & Traumatology, 08/2020, 30, 1039-1044. DOI: 10.1007/s00590-020-02663-w
R Tillmann, C Maizen, H Jefferson, E Woodward, L Burkwood: Reaching out to children with disabilities: setting up an outreach service to bring patient care closer to home. Physiotherapy 05/2020, Vol 107/1,E70. DOI: 10.1016/j.physio.2020.03.095
A Hebda-Boon, C Maizen, P Bijlsma, G Firth, D Morrissey: Maximising impact of gait analysis reports on non-surgical management of children with neurodisability-clinical service evaluation. Physiotherapy, 05/2020, Vol107-1, E68. DOI: 10.1016/j.physio.2020.03.092
R Tillmann, C Maizen, P Bijlsma, G Firth: Cerebral Palsy integrated pathway (CPIP) of hip surveillance, for children with non- cerebral palsy diagnosis? Physiotherapy, 05/2020. Vol 107-1, E208-E209. DOI: 10.1016/j.physio.2020.03.307

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