Our Team

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Maria Larrain, BSc, BOst, DPO. Osteopath

Maria Larrain BSc, BOst, DPO is a 2009 graduate of the British School of Osteopathy (BSO) and owner of Butterfield Osteopathy. Maria is a qualified Paediatric Osteopath having done post-graduate training at the Osteopathic Centre for Children. She is currently doing an MSc in Medical Anthropology at University College London. Her research subject is breastfeeding and ‘tongue-tie’.

She is a clinic tutor for post-graduate osteopaths who are doing their qualification in paediatric osteopathy at the BSO and a mentor for newly graduate osteopaths at Core Clapton. She is also a lecturer in cranial osteopathy for undergraduates at the British College of Osteopathic Medicine (BCOM).

Maria has a particular interest in osteopathy in the cranial field and the osteopathic care of babies, children and women who have pain and issues related to pregnancy and childbirth. She has a personal interest in the treatment and management of musculoskeletal problems arising from hypermobility. Her approach to treatment is quiet and gentle allowing the body to release and relax its own strain patterns but will also use more direct techniques when appropriate.

Maria is also a teacher of the Mindfulness-based Stress Reduction programme (MBSR).

She is registered with the General Osteopathic Council and is a member of the Institute of Osteopathy. Maria is also registered with BUPA, PruHealth, Cigna and AVIVA.

Maria works at Butterfield Osteopathy on Monday mornings, Tuesday mornings, Wednesdays afternoons and Friday mornings.

She is also a fluent Spanish and Danish speaker.


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Karina Spero, BSc (Hons) Ost, BSc (Hons) Psych. Osteopath

Karina Spero BSc (Hons) Ost, BSc (Hons) Psych, DPO graduated from the British School of Osteopathy in 2001 and has practiced as an Osteopath in London and Hertfordshire since then.

After qualifying as an Osteopath, she gained specialist experience in the treatment of Frozen Shoulder and related shoulder problems having trained in the Niel-Asher Technique at a specialist shoulder clinic.

Karina is experienced in diagnosing and treating a wide spectrum of musculoskeletal problems. She also has a particular interest and experience in the treatment of expectant and post-partum mothers, babies and children, having completed a Postgraduate Diploma in Paediatric Osteopathy. She continues to work one day a week at the Osteopathic Centre for Children.

In treatment, Karina aims to relieve pain, restore optimum musculoskeletal health and function, and to prevent the recurrence of problems. As such, consideration is given to what may have caused and be maintaining a problem, and advice given on how this can be managed. Treatment approaches may involve soft tissue massage, gentle joint articulation, special stretches and cranial osteopathy, depending on what is appropriate for each individual.

Karina is registered with the General Osteopathic Council (GOSC) and is a member of the British Osteopathic Association.

Karina works at Butterfield Osteopathy on alternate Monday afternoons, Thursdays all day and Saturdays.

She also speaks good Spanish and French.


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Petra Kamarytova, MOst. Osteopath

Petra Kamarytova BSc, M.Ost, DPO graduated from the British School of Osteopathy (BSO) in 2014, gaining Masters of Osteopathy (M.Ost). During her studies she also qualified as a massage therapist and she undertook training in the OsteoMAP programme, an NHS funded initiative developed by the BSO, which combines mindfulness and osteopathy for people suffering from chronic pain.

After her graduation, Petra worked in Nepal providing osteopathic treatment to local communities, treating a wide range of conditions from acute musculoskeletal injuries of farm workers to supporting the recovery of stroke patients alongside physiotherapy and providing osteopathic treatment in a shelter for vulnerable women.

Petra has completed a two-year post-graduate Diploma in Paediatric Osteopathy (DPO) with the Foundation for Paediatric Osteopathy, and is currently studying with the Molinari Institute of Health for the Diploma in Women’s Health. Although Petra is specialising in the treatment of children and women, she believes that her specialisation enables her to work more effectively with all age groups. She uses a combination of cranial and structural approaches, tailored to the individual.

In her free time, Petra loves swimming, yoga and meditation, going for long walks,rediscovering London’s hidden beauties and visiting exhibitions, galleries and the theatre.

​​She works at Butterfield Osteopathy on Tuesday and Friday mornings. Her first language is Czech.