Background Posttraumatic elbow stiffness is a common complication of elbow trauma. The functional arc of motion for the elbow has been well established as being 100&[deg] in both flexion-extension and pronation-supination. Conservative management has been the initial recommended treatment for posttraumatic stiffness; however, in the literature, increased improvement has been shown with surgical intervention. As our understanding of the pathology has improved, numerous approaches have been described and developed. Each patient’s pathology must be assessed to develop an appropriate treatment plan. We demonstrate in this video the role for radial head resection and capsular release for patients with flexion-extension and forearm rotation deficits. Purpose This video overview and case presentation demonstrates a radial head resection and capsular release for posttraumatic elbow stiffness. Methods Elbow anatomy and physical examination of, diagnosis of, and treatment options for posttraumatic elbow arthritis are reviewed. We discuss surgical indications and considerations including conservative treatment, soft-tissue releases, and bony resections. A case of a 39-year-old man with posttraumatic elbow stiffness in the setting of a prior radial head fracture. After a thorough discussion of risks, benefits, and prognosis, the patient elected to proceed with radial head resection and capsular release. Results Release and resection were performed and appropriate range of motion was obtained intraoperatively. Postoperative clinical outcomes were good in terms of motion and restoration of elbow function. Conclusion Radial head resection along with capsular releases offer reliable restoration of function after posttraumatic elbow stiffness in the setting of a prior elbow trauma. Selecting the appropriate approach while maintaining elbow stability and appropriate ulnar nerve tension is paramount.