loss与in(否定前缀)是不是重复了一个

Degenerative disc disease is another common finding seen on radiographs with patients with severe hyperkyphosis. There is significant correlation between anterior disc height and kyphotic angle. Some studies have shown hyperkyphosis in individuals without vertebral compression fractures, which supports the stronger correlation between degenerative disc disease [47]. With age-related extensor muscle weakness and the loss of inability to stand erect, the normal postural alignment is lost. Thus, others have postulated that hyperkyphosis is associated with spinal extensor muscle weakness [46, 48–50]. Additionally, the age-related calcification and ossification of anterior longitudinal ligament may also contribute to worsening hyperkyphosis.Finally, the aging population has loss of cerebellar function, vestibular, and proprioceptive feedback mechanisms. This may worsen already impaired erect vertebral alignment and serve to worsen hyperkyphosis

退行性椎间盘病变是严重后凸畸形患者的另一常见的X线表现。椎间盘前缘高度与后凸角有显著相关性。有研究表明，无椎体压缩性骨折的患者有后凸畸形，这表明两者之间有更强的相关性^[47]。随着与年龄相关的伸肌无力和（失去）无法直立，正常的姿势调整丢失。因此，有学者猜想脊柱后凸畸形与脊柱伸肌无力有关^[46，48-50]。此外， 与年龄相关的前纵韧带钙化和骨化也可能加重后凸畸形。最后，老年人的小脑功能、前庭功能及本体感觉反馈机制的丧失可能会恶化已经受损的脊椎直线排列并加重脊柱后凸畸形^[45，50]。

loss与in(否定前缀)是不是重复了一个