This study describes outcomes of UCL reconstruction in 83 throwing athletes using a muscle-splitting approach that avoids ulnar nerve exposure or transposition. It evaluates neurologic safety in the full cohort and functional return-to-sport outcomes in a 33-athlete subset followed for at least 2 years. The central question: can you reconstruct the UCL safely without touching the ulnar nerve?
The original Jobe UCL reconstruction routinely transposed the ulnar nerve and directed humeral tunnels through the posterior cortex — generating a 20% nerve complication rate that was widely considered unacceptable. This paper established that the nerve does not need to be touched at all: identify it, protect it, and direct your tunnels anteriorly.
When counseling a throwing athlete before UCL reconstruction, the most important prognostic question is whether they have had prior elbow surgery. No prior surgery means roughly 93% excellent outcomes. Prior surgery. Especially posteromedial olecranon resection. Means excellent outcomes drop to 20%, and you should set expectations accordingly.
When a patient presents with both UCL instability and ulnar nerve symptoms, do not assume the nerve requires independent treatment. Correcting the valgus instability alone resolved preoperative nerve symptoms in this cohort, consistent with a traction mechanism rather than primary nerve pathology. Resect more than 3 mm of posteromedial olecranon at your patient's peril. That threshold shifts load onto the reconstructed ligament and substantially raises failure risk.
This study describes outcomes of UCL reconstruction in 83 throwing athletes using a muscle-splitting approach that avoids ulnar nerve exposure or transposition. It evaluates neurologic safety in the full cohort and functional return-to-sport outcomes in a 33-athlete subset followed for at least 2 years. The central question: can you reconstruct the UCL safely without touching the ulnar nerve?
The original Jobe UCL reconstruction routinely transposed the ulnar nerve and directed humeral tunnels through the posterior cortex — generating a 20% nerve complication rate that was widely considered unacceptable. This paper established that the nerve does not need to be touched at all: identify it, protect it, and direct your tunnels anteriorly.
When counseling a throwing athlete before UCL reconstruction, the most important prognostic question is whether they have had prior elbow surgery. No prior surgery means roughly 93% excellent outcomes. Prior surgery. Especially posteromedial olecranon resection. Means excellent outcomes drop to 20%, and you should set expectations accordingly.
When a patient presents with both UCL instability and ulnar nerve symptoms, do not assume the nerve requires independent treatment. Correcting the valgus instability alone resolved preoperative nerve symptoms in this cohort, consistent with a traction mechanism rather than primary nerve pathology. Resect more than 3 mm of posteromedial olecranon at your patient's peril. That threshold shifts load onto the reconstructed ligament and substantially raises failure risk.