In theatre with Dr Mihata
Dr Teruhisa Mihata performed several superior capsular reconstruction (SCR) procedures during this visit, for patients with large, irreparable rotator cuff tears.
Why observe the originator
Dr Mihata first described superior capsular reconstruction and published the technique and his early results in 2013. Watching the surgeon who developed a technique perform it is the most direct way of picking up the detail that does not make it into a published description, which is largely why these visits are made.
A visiting surgeon arrangement works in both directions. The visitor operates on local patients with the host surgeon and team present, so the host unit sees the technique performed in its own theatre with its own equipment, and the visitor answers the questions that only arise once an operation is under way. A written technique description states the steps; it is much less good at conveying how a graft should be tensioned, how the arm should be positioned while that is done, or which part of the procedure is where things go wrong.
What the procedure addresses
Superior capsular reconstruction is used where a rotator cuff tendon has retracted and degenerated beyond the point at which it can be reattached to bone. A graft is used to reconstruct the superior capsule, restoring a restraint across the top of the joint. Individual results vary.
The problem being solved is mechanical. The rotator cuff normally holds the ball of the shoulder centred in its socket while the larger muscles raise the arm. When a large tendon is lost, the ball rides upwards against the bone above it instead of turning in place, which is painful and limits how far the arm can be lifted. Reconstructing a restraint across the top of the joint is an attempt to restore that centring without replacing the joint itself, which keeps a replacement available as a later option if needed.