Posteriorly Displaced Radial Head Fractures May Represent the Footprint of an Elbow Dislocation or Subluxation as a Variant of Modified Mason Type 4.

Autor:	Shoji MM; Harvard Combined Orthopaedic Residency Program, Harvard Medical School, Boston, MA, USA., Garcen MH; Orthopedics and Traumatology Department, British Hospital, Montevideo, Uruguay., Fernandez Dell'Oca AA; Orthopedics and Traumatology Department, British Hospital, Montevideo, Uruguay., Jupiter JB; Department of Orthopaedic Surgery, Division of Hand and Upper Extremity Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
Jazyk:	angličtina
Zdroj:	The archives of bone and joint surgery [Arch Bone Jt Surg] 2022 Jun; Vol. 10 (6), pp. 501-506.
DOI:	10.22038/ABJS.2021.55486.2764
Abstrakt:	Background: The purpose of this case series is to describe surgical decision making and clinical outcomes in posteriorly displaced radial head fractures with a major fragment (more than 50% of the head) located behind the humeral condyle. We also document the outcome of open reduction and internal fixation of completely displaced radial head fractures. Methods: A retrospective review of the ICUC® (Integrated Comprehensive Unchanged Complete) database was performed between 2012 and 2020. Patients were included if preoperative radiographs demonstrated a major radial head fracture fragment located posterior to the humeral condyle and a minimum of 2-year follow-up data was available. Results: Ten patients met inclusion criteria. Two patients had an associated elbow dislocation whereas 8 patients did not. All patients were found to have disruption of the lateral collateral ligament complex intraoperatively. Nine radial head fractures were successfully fixed with interfragmentary screws. One multi-fragmented radial head fracture could not be successfully stabilized with interfragmentary screw fixation and was resected. The average time to final follow-up was 4.8 years (range 2.2-8.1). At final follow-up, 6 patients demonstrated radiographic evidence of a healed radial head, 1 patient had avascular necrosis, and 2 had post-traumatic arthritis. None demonstrated radiographic instability. The average functional score was 0.64 (SD 0.81) and pain score was 0.45 (SD 0.93). The average elbow extension was 8 degrees (SD 11), elbow flexion was 139 degrees (SD 6), forearm supination was 60 degrees (SD 27), and forearm pronation was 69 degrees (SD 3). Conclusion: Recognition of a posteriorly displaced radial head fracture is essential, as it may be an indirect sign of elbow instability. This instability should be addressed during surgical intervention.
Databáze:	MEDLINE
Externí odkaz:	Zobrazit plný text záznamu