Eftekhar N S
Clin Orthop Relat Res. 1978 Nov-Dec(137):235-43.
The total knee replacement developed at the New York Orthopaedic Hospital is a nonhinged, nonconstrained variety in which the principle fixation mechanism is via the intramedullary stems of both components. The plastic segment (high density polyethylene) is press fitted into the metallic component of the tibial segment to minimize "plastic flow" and deformity. The operative technique calls for conservation of the bone of the proximal tibia by a minimum of bone resection following complete soft tissue release including removal of the cruciates. Accuracy of replacement becomes possible when the cruciate ligaments are excised and the mediolateral soft tissue structures are balanced in tension following maximum spacing of the joint to provide stability. Provisions are made for routine replacement of the patellofemoral joint.
纽约骨科医院研发的全膝关节置换术是一种无铰链、无限制的类型，其主要固定机制是通过两个组件的髓内柄。塑料部分（高密度聚乙烯）被压配合到胫骨部分的金属组件中，以尽量减少“塑性流动”和畸形。手术技术要求在包括切除十字韧带在内的完全软组织松解后，通过最少的骨切除来保留胫骨近端的骨质。当切除十字韧带并在关节最大间距后平衡内外侧软组织结构的张力以提供稳定性时，置换的准确性才有可能实现。还提供了常规的髌股关节置换。
