Ulnar neuropathy at the elbow in 413 Japanese patients: An assessment of pathological elbow lesions and neurological severity
| Autor: | Kazuhiko Hirachi, Hirotaka Haro, Yuichiro Matsui, Hiroyuki Kato, Genki Okita, Shigeharu Uchiyama, Nobutaka Sato, Yoshiaki Wakabayashi, Kazuki Kuniyoshi, Senichi Ishii |
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| Rok vydání: | 2018 |
| Předmět: |
musculoskeletal diseases
Adult Male medicine.medical_specialty Weakness Adolescent Elbow Cubitus valgus Osteoarthritis Ulnar neuropathy Lesion 03 medical and health sciences Young Adult 0302 clinical medicine Japan Elbow Joint Medicine Humans Orthopedics and Sports Medicine Cubital tunnel Aged Retrospective Studies Aged 80 and over 030222 orthopedics business.industry Electrodiagnosis Middle Aged musculoskeletal system medicine.disease Ganglion Surgery body regions medicine.anatomical_structure Female medicine.symptom business Ulnar Neuropathies 030217 neurology & neurosurgery |
| Zdroj: | Journal of orthopaedic science : official journal of the Japanese Orthopaedic Association. 25(2) |
| ISSN: | 1436-2023 |
| Popis: | Background Various pathological elbow lesions are often complicated with ulnar neuropathy at the elbow (UNE), although the precise pathology, incidence, and clinical and neurological features of these lesions have not been identified. We therefore investigated elbow pathology and neurological severity in Japanese patients with UNE. Methods The medical records of 457 Japanese UNE patients who were surgically treated among 6 hospitals were retrospectively examined. Eligible patients had UNE diagnosed by physical findings and nerve conduction studies according to the criteria of the American Association of Electrodiagnostic Medicine. The elbows were analyzed with regard to age, gender, occupation, pathology at the elbow, and severity of nerve palsy. Results A total of 398 patients with 413 UNE elbows of a mean age of 63 years (range: 15–87) met the inclusion criteria. UNE elbows were predominantly in male patients (69.0%). Overall, 310 elbows (75.1%) had 1 or more elbow lesions: 238 elbows (76.8%) had a single lesion and 72 elbows (23.3%) had 2 or more lesions. The most common lesion was primary elbow osteoarthritis (EOA) occurring in 54.5% of elbows, followed next by medial elbow ganglion in 8.5% and cubitus valgus in 6.5%. Most elbows with medial elbow ganglion or cubitus valgus were associated with EOA. Entrapment sites were at the cubital tunnel in 84.5%–91.3% of UNE elbows, regardless of an association with elbow lesion. The incidence of McGowan grade III lesion was 50.8% in elbows with primary EOA, which was higher than the 35.0% in elbows with no lesion. Conclusions This study revealed that UNE had various isolated or combined elbow lesions. In Japanese UNE, primary or secondary EOA was found in 62.2% of cases and severe motor weakness was noted in 47.2%. The incidences of EOA and severe ulnar nerve palsy in the Japanese UNE are higher than those in Caucasians. Level of evidence Level IV; Prognostic—Investigating the effect of a patient characteristic on the outcome of a disease; Case series. |
| Databáze: | OpenAIRE |
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