Clinical orthopaedics and related research
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Clin. Orthop. Relat. Res. · May 2013
Multicenter StudyDistal radius malunion increases risk of persistent disability 2 years after fracture: a prospective cohort study.
Studies concerning the relationship between distal radius fracture malunion and a persistent arm-related disability have produced conflicting results. ⋯ After distal radius fracture, arm-related disabilities are more likely to persist at least 2 years in patients with fractures that healed with shortening and dorsal angulation than in patients with only shortening or dorsal angulation or without malunion.
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Clin. Orthop. Relat. Res. · May 2013
Impingement adversely affects 10-year survivorship after periacetabular osteotomy for DDH.
Although periacetabular osteotomy (PAO) for developmental dysplasia of the hip (DDH) provides conceptual advantages compared with other osteotomies and reportedly is associated with joint survivorship of 60% at 20 years, the beneficial effect of proper acetabular reorientation with concomitant arthrotomy and creation of femoral head-neck offset on 10-year hip survivorship remains unclear. ⋯ Proper acetabular reorientation and the creation of a spherical femoral head improve long-term survivorship and decelerate OA progression in patients with DDH.
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Clin. Orthop. Relat. Res. · May 2013
Heterotopic bone formation about the hip undergoes endochondral ossification: a rabbit model.
Heterotopic ossification (HO) occurs most commonly after trauma and surgery about the hip and may compromise subsequent function. Currently available animal models describing the cellular progression of HO are based on exogenous osteogenic induction agents and may not reflect the processes following trauma. ⋯ By showing a consistent pathway of endochondral ossification leading to ectopic bone formation, this study provides a basis for understanding the mechanisms by which HO might be mitigated by interventions.