Understanding surgical decision-making in patients with traumatic upper extremity peripheral nerve injury: A retrospective cohort study.

PURPOSE

Careful patient selection and optimal surgical timing are essential to the success of nerve transfers. It is important to understand what factors contribute to this decision-making. The purpose of this study was to describe the characteristics of patients referred to interdisciplinary peripheral nerve clinics with traumatic upper extremity injuries and compare those who went on to nerve transfer surgery with those who did not.

METHODS

Patient and injury characteristics, preoperative physical examination and electrodiagnostic findings, and patient-reported outcome measures were examined. Inclusion criteria were subjects ≥18 years of age presenting to an interdisciplinary peripheral nerve clinic with traumatic upper extremity peripheral nerve injuries. Subjects were stratified into surgical and non-surgical groups for comparison.

RESULTS

Eighty-three subjects met the inclusion criteria, and 36 subjects received nerve transfer surgery. More male subjects went on to have surgery than female subjects. The surgical group demonstrated a significantly higher ratio of weak and denervated muscle groups than the non-surgical group (p < 0.05). No other statistically significant differences were identified between operative and non-operatively managed subjects.

CONCLUSION

Subjects that received nerve transfer surgery demonstrated a significantly higher ratio of weak and denervated muscles than those managed non-surgically, and males were disproportionately represented in the surgical group. These findings suggest that anticipated motor recovery is the most important factor driving surgical decision-making and that male subjects may be more likely to proceed with surgery. Understanding which patients undergo nerve transfer surgery allows clinicians to interrogate their decision-making, address patient-related barriers to surgery, and better understand surgical outcomes.