The L-shaped volume is fixed at either end to two existing brick blocks to form a continuous loop around a courtyard, and slopes down at its corner so as not to block views for residents to its rear.
Background: Continuous femoral or lumbar plexus blocks have been demonstrated to provide effective postoperative analgesia of the lower extremity following total joint arthroplasty.
背景：已经证明持续股神经阻滞或者腰丛阻滞可以有效的提供下肢关节置换术后疼痛的管理。
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This gives us a continuous stream of material that we can put into almost any shape, though today we're making corner blocks.