Schwannomas of the deep motor branch of the ulnar nerve: a systematic review of the literature with an additional case report and anatomical analysis

Key Points

• This review aims to evaluate the outcomes of treating schwannomas of the deep motor branch of the ulnar nerve and identify factors influencing recovery.
• Conducted a systematic review of existing literature on schwannomas of the deep motor branch of the ulnar nerve.
• Included a detailed analysis of a new case report.
• Analyzed preoperative and postoperative outcomes related to imaging and surgical techniques.
• Favorable outcomes are associated with accurate preoperative imaging and careful intraoperative techniques.
• Complete recovery is achievable in cases of schwannomas of the deep motor branch of the ulnar nerve.
• No significant links were found between postoperative nerve function and tumor size, patient age, or symptom onset.