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Our Team

Meet our skilled professionals

Sarah El Queisi, MSc(A)PT, pht, FCAMPT

Physiothérapie Avantex founder

Sarah is a licensed, CAMPT-certified physiotherapist specializing in the management of vestibular and orthopedic injuries. She completed her Bachelor of Science (Anatomy & Cell Biology) at McGill University in 2006, and went on to complete her Master of Science (Applied) Physical Therapy in 2010. She completed her Diploma of Advanced Manual and Manipulative Therapy and achieved the rank of Fellow of the Canadian Academy of Manipulative Therapists in Fall 2017.

Sarah’s fields of interest are post-concussion syndrome, vestibular rehabilitation, neck and back pain, and cervicogenic headache. Sarah has also worked in the development and implementation of a successful interdisciplinary concussion rehabilitation program, and has implemented this model at Physiothérapie Avantex. Sarah strives to offer the most effective, evidence-based care for all of her clients. She regularly participates in conferences and continuing education activities in order to stay at the forefront of the field.

Sarah is also an accomplished long-distance runner and triathlete. She loves working with athletes of all levels, from weekend-warriors to professionals.

Lina Osseiran, Msc(A)PT, PHT

Pediatric and Orthopedic Physiotherapy


Lina completed her Master of Science (Applied) in Physical Therapy in 2013. Over the last seven years she has treated a variety of clients from 0 to 99 years old with orthopedic and neurological conditions whether at the hospital, the clinic or at home. She is especially passionate about treating plagiocephaly/torticollis, developmental delays and orthopedic conditions in a pediatric clientele as well as balance and conditioning issues in a geriatric clientele.

She is dedicated to providing the best possible care for her clients and values working collaboratively with her clients and their families to achieve their goals. She strives to continually improve her skills by completing various continuing education courses, such as courses in pediatrics and geriatrics as well as manual therapy level 3 courses.