BSc(Hons) MBBS FRCS(Tr&Orth)
Orthopaedic Surgeon
17 years of experience
London, SE1 7EH
58 connections in healthcare
Skill endorsed
by Mr Francesc Malagelada
17 years of experience
London, SE1 7EH
58 connections in healthcare
Skill endorsed
by Mr Francesc Malagelada
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I am a Consultant Spinal Surgeon at Guy’s and St Thomas’ NHS Foundation Trust, based primarily at the Evelina London Children’s Hospital. I specialise in the management of spinal deformity in children, teenagers and young adults, working within a highly experienced multidisciplinary team treating conditions such as idiopathic scoliosis, neuromuscular deformity, skeletal dysplasia and neurofibromatosis.
My consultant career began in Oxford, where I cared for both adult and paediatric patients with the full spectrum of spinal conditions, including trauma, infection, degenerative disease and complex deformity. This experience provided a strong foundation in spinal surgery and continues to inform my holistic, long-term approach to treating young people as they transition into adulthood.
By way of background, I completed my medical training at Imperial College London with distinction before undertaking specialist orthopaedic training in London. To further strengthen my experience in spinal surgery, I completed a series of high-volume fellowships, including the National Spine Fellowship and advanced deformity fellowships at the Royal National Orthopaedic Hospital and Great Ormond Street Hospital. I was also honoured to receive competitive travelling fellowship awards from both the British Orthopaedic Association and AO Spine, enabling me to visit internationally recognised centres across the United States and Europe. These experiences provided valuable additional training in complex spinal deformity care, as well as exposure to emerging technologies such as 3D navigation and robotic-assisted surgery.
Alongside my surgical practice, I have a particular interest and expertise in non-operative management of scoliosis. I have been actively involved in the BASIS (Bracing in Adolescent Idiopathic Scoliosis) Study, serving as Principal Investigator in Oxford and subsequently as Sub-Investigator at the Evelina. This work has strengthened my commitment to evidence-based pathways that support the right treatment, at the right time, for every patient.
My approach to care is calm, collaborative and patient-focused. I believe that clear communication and shared decision-making are essential to achieving the best possible outcomes. Whether planning surgery or exploring non-operative options, my aim is always to ensure that patients and families feel informed, supported and confident throughout their journey.
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General Medical Council
No. 7020481
Royal College of Surgeons
No. 1038652
British Association of Spinal Surgeons
No. 54653397
British Scoliosis Society
No. 60467419
Scoliosis Research Society
No. 105185
Royal College of Surgeons
FRCS: Trauma & Orthopaedic Surgery
Graduated 2018
Royal College of Surgeons
MRCS: Surgery
Graduated 2011
Imperial College School of Medicine
MBBS: Bachelor of Medicine, Bachelor of Surgery
Graduated 2008
Imperial College London
BSc: Medical Sciences with Management
Graduated 2006
Read publications and papers written by this specialist.
04 / 02 / 2026
Anterior release & posterior spinal fusion vs. posterior-only fusion in AIS patients with large magnitude thoracic curves - European Journal of Orthopaedic Surgery & Traumatology
Published in European Journal of Orthopaedic Surgery & Traumatology
15 / 07 / 2025
Validating the Hierarchical Nature of the AO Spine Upper Cervical Spine Injury Classification System
Published in Spine
01 / 02 / 2024
The Surgical Algorithm for the AO Spine Sacral Injury Classification System
Published in Spine
08 / 03 / 2022
Anterior vertebral body tethering for idiopathic scoliosis: how well does the tether hold up? - Spine Deformity
Published in Spine Deformity
Mr Silk involved my daughter in the conversation which she appreciated. Very happy with the output of her previous surgery by Mr Silk.
The appointment was very helpful the Doctor gave us all the information.
Is a really good doctor he explains everything calm and clear.
Very professional and informative made everything clear and highly reassuring I feel at ease and comfortably confident with Mr Zacharia
The whole experience from the spinal investigation day to day of discharge has been excellent , all staff have been so supportive and caring , the treatment my son received has been amazing , we are forever grateful thank you

Thank you so much for your kind words. I’m delighted you and your son had such a positive experience. I’ll be sure to share your thanks with the whole team. Wishing him all the very best in his recovery.
I have no words to truly express how wonderful Mr Silk is. Not only his professionalism as a surgeon but also his ability to explain everything in detail and have the time to really make his patients feel at ease. As a parent of a teenage daughter he really understood what are anxieties and concerns were and he spent time to consider all of this. Mr Silk is a credit to his profession and to the hospital and we could not thank him enough for all his support through our daughters journey.

Thank you so much for your lovely words. It really means a lot to hear this. It was a real privilege to support your daughter and your family through her journey. I’m so pleased you felt listened to and reassured along the way. Wishing you all the very best going forwards.
Mr Silk has been excellent throughout our daughter's care plan and treatment. Easy to talk to and so great at putting our daughter at ease. Brilliant consultant.
The most incredible amazing experience from step one right through to my nieces amazing life changing surgery

Thank you so much for your kind words. I’m delighted your niece had such a positive experience and that her surgery has gone so well. Wishing her all the very best!
Dr Silk was really good at explaining all of the options available and giving us some reassurance. Took his time with us and was very kind.

Thank you for your kind feedback. I’m glad you found the discussion clear and reassuring, and I wish you all the best for the future.
Zac is an outstanding spinal surgeon who I have known for many years. He is highly experienced and a very well respected colleague with excellent skills in the treatment of complex spinal cases both elective and traumatic. His bedside manner is fantastic and I have no hesitation in recommending him highly
21 Dec 2025
Mr Francesc Malagelada
Orthopaedic Surgeon
What are Mr Zacharia Silk's reviews like?
Mr Zacharia Silk's overall patient rating is 4.96 out of 5 stars on Doctify. This is based on 24 reviews.
What languages does Mr Zacharia Silk speak?
Mr Zacharia Silk speaks English and Arabic
Where is Mr Zacharia Silk located?
Mr Zacharia Silk primarily practices at Evelina London Children's Hospital, located at Westminster Bridge Rd, London, United Kingdom, SE1 7EH
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Does Mr Zacharia Silk accept new patients?
Mr Zacharia Silk generally accepts new patients.
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