Mr J N O'Hara

Personal profile

I went to medical school in Dublin and qualified with the Royal College of Surgeons in 1976 and worked in various fields of orthopaedics before specialising in hip problems of children and adults.

In the 1980s I worked with Derek McMinn developing the idea of metal-on-metal hip resurfacing and made the first wooden prototype. I then went to The Hospital for Sick Children in Toronto, Canada to work with Bob Salter, where I developed and perfected my skills in pelvic osteotomy surgery - or in simpler terms, surgical correction of the hip and femur for people who were born with dislocated or shallow hips.

I am currently Chief of the young adult hip service at the Royal Orthopaedic Hospital, Birmingham and I work one day per week at the Birmingham Children’s' Hospital, where I still do Paediatric Trauma. The remainder is surgery on the consequences of childhood disease of the hip in young adults.

My practice embraces conditions of the hip such as dislocation and dysplasia (DDH), Perthes' Disease and Slipped Upper Femoral Epiphysis (SUFE), conditions which in adult life, even in their subtler forms are principally responsible for a large number of arthritic hips in those of retirement age.

I have carried out over 1300 Birmingham Interlocking Pelvic Osteotomies (BIPO).

I also have extensive experience of the various acetabuloplasties and am familiar with the use of allografts in the correction of acetabular deformity.

In my adult practice, I mainly treat the sequelae (pathological consequences) of hip dislocation and dysplasia, principally by the (combined) use of pelvic and femoral osteotomies.

I also carry out hip resurfacings and the latest type of ceramic on ceramic Delta-Motion total hip replacements, whichever procedure is best suited to my patient.

I have published a number of medical papers and lectured extensively around the world. I believe I am the first non-American to be invited to be a guest lecturer to the American Academy of Orthopaedic Surgeons.

I was born in Ireland and both my parents were doctors - my father having served in the RAMC during World War II, was for a time Anaesthetist to Sir John Charnley. My mother was a family doctor.

I am happily married to a Consultant Clinical Psychologist. Apart from spending time with my family, one of my greatest pleasures is seeing my patients fit, active and able to lead full and useful lives, which had previously been denied them.

Clinical Interests



  • Young adult hip disease

  • Paediatric hip disease

  • Developmental hip dysplasia

  • Perthes' disease

  • Pelvic osteotomy

  • Hip debridement and impairment

  • Osteotomy

  • Birmingham interlocking pelvic osteotomy

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