Congenital Kyphosis: Progressive Correction With an Instrumented Posterior Epiphysiodesis: A Preliminary Report.

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Congenital kyphosis is a rare condition. In this case series we sought to identify the outcomes and complications of posterior instrumented fusion and the resultant epiphysiodesis effect in uniplanar congenital kyphosis in pediatric patients.


Pediatric patients were included if treated for a uniplanar congenital kyphotic deformity treated with posterior instrumented spinal fusion between October 2006 and August 2017, with a minimum of 2 years of follow-up. Patients were excluded if a coronal deformity >10 degrees was present.


Six patients met the inclusion criteria. Mean age at surgery was 3.6 years. The mean kyphotic deformity before surgery was 49.7 degrees. All patients underwent posterior instrumented fusion with autogenous iliac crest graft and a cast or brace postoperatively. One patient showed a loss of motor evoked potential on prone positioning which returned to normal on supine positioning. No patient showed any postoperative neurological deficits. One patient was diagnosed with a wound infection which was successfully treated with oral antibiotics.By a follow-up of 5.4 years (range, 2.2 to 10.9 y) there was no failure of instrumentation. An epiphysiodesis effect (a difference of ≥5 degrees in the kyphotic deformity measured between the immediate postoperative and final follow-up lateral whole spine XR) of 16.2 degrees (range, 7.2 to 30.9 degrees) was seen in 5 patients. The mean annual epiphysiodesis effect was 2.7 degrees (95% confidence interval, 1.4-4.1 degrees). No kyphosis proximal to the instrumentation was observed for the duration of follow-up.


Posterior instrumented fusion and epiphysiodesis is safe and effective. The epiphysiodesis effect occurs in 5/6 of cases, and our data suggests that the procedure is associated with an acceptable blood loss and a low incidence of neurological complications.





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Rocos, Brett, David E Lebel and Reinhard Zeller (2021). Congenital Kyphosis: Progressive Correction With an Instrumented Posterior Epiphysiodesis: A Preliminary Report. Journal of pediatric orthopedics, 41(3). pp. 133–137. 10.1097/bpo.0000000000001745 Retrieved from

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Brett Rocos

Assistant Professor of Orthopaedic Surgery

I joined the team at Duke University Health from London, UK, where I was a Consultant Adult and Paediatric Spine Surgeon at Barts Health NHS Trust and Honorary Consultant Senior Lecturer at Queen Mary University of London. I completed my surgical training in in the South West of the UK and at the University of Toronto, and am fellowship trained in adult spine surgery, paediatric spine surgery, orthopaedic trauma surgery, research and healthcare management.

I am driven to support patients at every stage of their care, from clinic assessment, through surgery to discharge. Making sure that every person, adult, child, family or friend understands what’s wrong, helping them to choose the right treatment for them, and what the recovery will be like is an important priority.

My research activity focusses on finding effective new treatments for spinal disorders and bringing them to patients. Focusing on spinal deformity, I have led investigations in the UK, Canada and the USA, and I sit on the Global AO Knowledge Forum for Deformity and the Research Grants Committee at the Scoliosis Research Society. I have lectured in North America and Europe about the treatment of spine disorders for the Scoliosis Research Society, Global Spine Congress, AO Spine and Eurospine, and I have worked hard to produce research that improves the care for spine patients wherever they live. Lastly, I review for several orthopaedic journals and I am Deputy Editor of the Bone and Joint 360, a leading publication with a global readership.

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