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Figure 3 | Scoliosis

Figure 3

From: The impact of the leg-lengthening total hip arthroplasty on the coronal alignment of the spine

Figure 3

Classification of the scoliosis change according to the POb change. Classification of the scoliosis change according to the POb change. Seventy five of 195 did not exhibit POb change (ΔPOb(-)) and scoliosis did not progress. In 120 ΔPOb(+) patients, 45 showed improve of scoliosis (ΔLS(-)) and 54 showed compensation at lumbosacral junction without changing scoliosis (ΔLS(n)). Twenty one cases developed spinal imbalance or progressed scoliosis (ΔPOb(+),ΔLS(+)). A: 7 cases developed de novo scoliosis due to the rigid lumbosacral junction. B: 2 cases showed the over compensation at lumbosacral junction and developed lumbar scoliosis. C: 5 cases developed scoliosis due to the leg lengthening THA on the contralateral side. D: 7 cases developed plumb line shift due to the rigid lumbar scoliosis or lumbosacral junction.

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