Jin-Hyung Im1, Dong Kyu Moon2, Ji-Yong Gwark1, Hyung Bin Park3,4. 1. Department of Orthopaedic Surgery, Gyeongsang National University Changwon Hospital, 11 Samjeongja-ro Seongsan-gu, Changwon, 51472, Republic of Korea. 2. Department of Orthopaedic Surgery, Gyeongsang National University Hospital, Jinju, Republic of Korea. 3. Department of Orthopaedic Surgery, Gyeongsang National University Changwon Hospital, 11 Samjeongja-ro Seongsan-gu, Changwon, 51472, Republic of Korea. hbinpark@gnu.ac.kr. 4. Institute of Health Science and School of Medicine, Gyeongsang National University, Jinju, Republic of Korea. hbinpark@gnu.ac.kr.
Abstract
INTRODUCTION: Radial nerve palsy (RNP) associated with humeral shaft fracture (HSF) is the most common nerve complication in long bone fractures. There is still controversy over the need for immediate exploration of the radial nerve (RN) in HSF with RNP. The purpose of the current study was to determine which situations of HSF with RNP require early exploration of the RN. MATERIALS AND METHODS: This is a retrospective study that included 55 patients who had visited the emergency department of the current authors' hospital and had been diagnosed with HSF between March of 2005 and September of 2015. Of these 55 patients, 14 (25.4%) had been diagnosed with HSF with RNP. We reviewed the medical records of those 14 patients and their radiographs to evaluate each fracture's type, location, pattern, energy of trauma, status of RN injury, and time until recovery from RNP. RESULT: All the 14 RNP patients had suffered high-energy trauma. Three had fractures in the proximal third (21.4%), six in the middle third (42.9%), and five in the distal third (35.7%). The three patients (21.4%) with incomplete recovery of RNP all had proximal third fractures; two of these three patients had RN transection. CONCLUSION: Early exploration of the radial nerve should be considered in patients with radial nerve palsy associated with proximal third humeral shaft fracture, regardless of the fracture patterns caused by the high-energy trauma.
INTRODUCTION:Radial nerve palsy (RNP) associated with humeral shaft fracture (HSF) is the most common nerve complication in long bone fractures. There is still controversy over the need for immediate exploration of the radial nerve (RN) in HSF with RNP. The purpose of the current study was to determine which situations of HSF with RNP require early exploration of the RN. MATERIALS AND METHODS: This is a retrospective study that included 55 patients who had visited the emergency department of the current authors' hospital and had been diagnosed with HSF between March of 2005 and September of 2015. Of these 55 patients, 14 (25.4%) had been diagnosed with HSF with RNP. We reviewed the medical records of those 14 patients and their radiographs to evaluate each fracture's type, location, pattern, energy of trauma, status of RN injury, and time until recovery from RNP. RESULT: All the 14 RNP patients had suffered high-energy trauma. Three had fractures in the proximal third (21.4%), six in the middle third (42.9%), and five in the distal third (35.7%). The three patients (21.4%) with incomplete recovery of RNP all had proximal third fractures; two of these three patients had RN transection. CONCLUSION: Early exploration of the radial nerve should be considered in patients with radial nerve palsy associated with proximal third humeral shaft fracture, regardless of the fracture patterns caused by the high-energy trauma.
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