Orthopaedics
Cornwall / Goh Lab

Cornwall / Goh Research Lab

The Cornwall / Goh Lab focuses on researching brachial plexus birth injury (BPB) and cerebral palsy (CP), two of the most common causes of paralysis in children. Both conditions cause secondary contractures, or loss of joint flexibility, that are the primary driver of physical disability and need for surgical treatment. These contractures cannot be cured by existing therapies because the cause of these contractures is unknown.

To address this knowledge gap, we developed a mouse model of neonatal brachial plexus injury (NBPI) that precisely mimics the human contracture phenotype of BPBI. Using this model, we discovered that contractures are caused by impaired longitudinal growth of denervated muscle, and that this impaired growth is characterized by overstretched sarcomeres (Figure 1).  

Figure 1 - Impaired longitudinal growth of muscle is indicated by overstretched sarcomeres at fixed joint angles, indicating fewer than normal sarcomeres in series within denervated muscle.

Figure 1 - Click for caption.

Understanding the mechanisms by which denervation impairs neonatal muscle growth is critical to preventing these contractures. Our laboratory is thus exploring multiple avenues to dissect the link between denervation, muscle growth, and contractures. Read more about our efforts by following the links below:

About the PIs

A photo of Roger Cornwall.

A photo of Qingnian Goh.

Roger Cornwall, MD, and Qingnian Goh, PhD­ 

We believe that success is only possible through strong collaboration.

Learn More and Meet Our Team