Twenty consecutive primary noncemented total hip arthroplasties performed on 12 men with ankylosing spondylitis were available to be studied clinically and radiographically at an average follow-up period of 75 months (range, 27-121 months). The average patient age at the time of surgery was 35 years (range, 23-53 years). Harris hip scores averaged 48.4 before surgery and 89.1 at the most recent...

To date, no reports have presented radiculopathy secondary to heterotopic ossification following lumbar total disc arthroplasty. The authors present a previously unpublished complication of lumbar total disk arthroplasty (TDA) secondary to heterotopic ossification (HO) in the spinal canal, and they propose a modification to the McAfee classification of HO. The patient had undergone an L5/S1 lum...

Heterotopic ossification (HO) is the formation of pathologic bone within soft tissues, often muscle tissues, where bone formation does not usually occur (Watanabe & Sant 2001). The incidence of HO in patients with traumatic brain injury (TBI) has been reported to range from 11–77% but is clinically relevant in 10–20% (Dizdar et al. 2013; Garland et al. 1980; Rogers 1988; Sarafis et al. 1999; Sa...

This paper is based on study over twelve and a half years of 170 patients suffering from traumatic paraplegia or tetraplegia, ofwhom 162 survived for more than a month after injury, and of 103 patients with other lesions of the spinal cord. The patients in the second group were less suitable for analysis because in many the lesions were disseminated or incomplete: few could be compared with the...

Incidence of bony ankylosis in hip joint with AS is approximately 40%. Bony hips joints comes very unique management challenges. There no specific review article the literature only for total replacement ankylosed hips. We run a to evaluate surgical outcomes and postoperative complications Total Hip Arthroplasty ankylosing joints. five studies, which satisfied inclusion criteria, selected this ...

Heterotopic ossification (HO) is the process by which calcified bone develops in soft tissues. Because of the abnormal calcification, complications such as bone deformation, loss of range of motion, and joint immobility adversely affect patients. There are many genetic types of heterotopic ossification, namely fibrodysplasia ossificans progressiva, progressive osseous heteroplasia, and Albright...

Neurogenic heterotopic ossification (NHO) involves deposition of bone in extraskeletal tissue in the setting of a neurological disorder, and its pathophysiology is incompletely understood. NHO can lead to significant disability and functional impairment. NHO initially manifests as pain and joint stiffness. Early diagnosis requires appropriate suspicion and imaging studies to detect the uncalcif...