{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,11]],"date-time":"2025-11-11T08:08:41Z","timestamp":1762848521343,"version":"build-2065373602"},"reference-count":21,"publisher":"BMJ","issue":"11","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Rep"],"accepted":{"date-parts":[[2025,10,23]]},"published-print":{"date-parts":[[2025,11]]},"abstract":"<jats:p>Pathological fractures, both completed and impending, of the humeral diaphysis from primary or metastatic disease demand a reconstruction that restores stability while preserving shoulder function and alleviating pain. Conventional reconstructive approaches include the use of long-stemmed endoprosthetic devices, plate-and-screw fixation or intramedullary nailing, all of which can be limited in their success when residual bone is short or biologically weak. This case study details the management of a patient with metastatic leiomyosarcoma who presented with refracture through a previously cement-augmented lesion. Following resection, the diaphyseal defect was spanned using a custom humeral cage. A NuVasive PRECICE magnetically controlled intramedullary nail, pre-lengthened before insertion, was placed through the cage and shortened intraoperatively to achieve axial compression between the cage and bone segments. At the 6\u2009month follow-up, the patient had excellent shoulder range of motion, apparent ingrowth into the cage, and he was able to resume activities of daily living with minimal pain.<\/jats:p>","DOI":"10.1136\/bcr-2025-269130","type":"journal-article","created":{"date-parts":[[2025,11,11]],"date-time":"2025-11-11T08:05:34Z","timestamp":1762848334000},"page":"e269130","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":0,"title":["Use of a magnetic intramedullary nail for axial compression in endoprosthetic reconstruction of the humerus: a description of technique"],"prefix":"10.1136","volume":"18","author":[{"ORCID":"https:\/\/orcid.org\/0009-0006-7543-5414","authenticated-orcid":false,"given":"Devika A","family":"Shenoy","sequence":"first","affiliation":[{"name":"Department of Orthopaedic Surgery, Duke University School of Medicine, Durham, North Carolina, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Aaron D","family":"Therien","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Duke University School of Medicine, Durham, North Carolina, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Olivia","family":"Blaber","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Duke University School of Medicine, Durham, North Carolina, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Isabel","family":"Prado","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Duke University School of Medicine, Durham, North Carolina, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nicole","family":"Levine","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Duke University School of Medicine, Durham, North Carolina, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Dan","family":"Librot","sequence":"additional","affiliation":[{"name":"restor3d Inc, Durham, North Carolina, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"William C","family":"Eward","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Duke University School of Medicine, Durham, North Carolina, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2025,11,10]]},"reference":[{"key":"2025111100052723000_18.11.e269130.1","doi-asserted-by":"crossref","first-page":"e116","DOI":"10.5435\/JAAOS-D-20-00819","article-title":"Management of Metastatic Disease of the Upper Extremity","volume":"29","author":"Voskuil","year":"2021","journal-title":"J Am Acad Orthop Surg"},{"key":"2025111100052723000_18.11.e269130.2","doi-asserted-by":"crossref","first-page":"e482","DOI":"10.5435\/JAAOS-D-24-00053","article-title":"The 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