title: Arthroscopic management of lesser tuberosity osteochondroma causing impingement and subscapularis tear of the shoulder.
abstract: Although the proximal humerus is a common site of osteochondroma, osteochondroma arising from the lesser tuberosity of the proximal humerus is rare. Because of the anatomy of the shoulder, mechanical impingement can occur via direct contact of the protruding lesser tuberosity against the glenoid rim or coracoid. In younger patients, this may cause isolated tearing of the subscapularis. In this study, is presented a rare case of osteochondroma on the lesser tuberosity that caused a subscapularis tear after shoulder impingement in a 34-year-old male. This case was managed using an arthroscopic approach. One year after the surgery, the patient had recovered a normal range of motion, with the resolution of impingement symptoms and the tearing of the subscapularis. Level of evidence IV.
authors.affiliation: Department of Orthopaedics Surgery, Chonbuk National University Medical School, Research Insitute for Endocrine Sciences and Research Insitute of Clinical Medicine of Chonbuk National University-Biomedical Research Insitute of Chonbuk National University Hospital, 567 Baekje-ro, Dukjin-gu, Jeonju, 561-756, Republic of Korea.
authors.forename: Jung Ryul
authors.initials: JR
authors.lastname: Kim
authors.affiliation: Department of Orthopaedics Surgery, Chonbuk National University Medical School, Research Insitute for Endocrine Sciences and Research Insitute of Clinical Medicine of Chonbuk National University-Biomedical Research Insitute of Chonbuk National University Hospital, 567 Baekje-ro, Dukjin-gu, Jeonju, 561-756, Republic of Korea.
authors.forename: Ju Hong
authors.initials: JH
authors.lastname: Lee
authors.affiliation: Department of Orthopaedics Surgery, Chonbuk National University Medical School, Research Insitute for Endocrine Sciences and Research Insitute of Clinical Medicine of Chonbuk National University-Biomedical Research Insitute of Chonbuk National University Hospital, 567 Baekje-ro, Dukjin-gu, Jeonju, 561-756, Republic of Korea. wsi1205@naver.com.
authors.forename: Sung Il
authors.identifier: http://orcid.org/0000-0002-3890-6516
authors.initials: SI
authors.lastname: Wang
mesh_terms: D000328:Adult; D001182:Arthroscopy; D001859:Bone Neoplasms / Q000150:complications / Q000601:surgery*; D006801:Humans; D006811:Humerus / Q000601:surgery*; D008297:Male; D015831:Osteochondroma / Q000150:complications / Q000601:surgery*; D017006:Rotator Cuff / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery*; D019534:Shoulder Impingement Syndrome / Q000209:etiology / Q000601:surgery; D012785:Shoulder Joint / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery*
keywords: Arthroscopic management; Lesser tuberosity; Osteochondroma; Subscapularis tear