title: Extensive posterior-inferior heterotopic ossification in chronic grade v acromioclavicular injury blocking reduction during surgical repair: a report of two cases.
authors: Department of Orthopaedic Surgery and Rehabilitation, University of Iowa Hospitals and Clinics, 200 Hawkins Drive, 01008 JPP, Iowa City, IA 52242 USA.
authors: Robert W
authors: RW
authors: Westermann
authors: Department of Orthopaedic Surgery and Rehabilitation, University of Iowa Hospitals and Clinics, 200 Hawkins Drive, 01008 JPP, Iowa City, IA 52242 USA.
authors: Brian R
authors: BR
authors: Wolf
keywords: acromioclavicular joint; hetertopic ossification; high-grade; reconstruction; shoulder; subclavian neurovascular bundle