Petrie J R, Haidukewych G J
Washington University Orthopaedics Joint Preservation, Resurfacing, and Reconstruction Fellowship, 1 Barnes Jewish Hospital Plaza, St. Louis, MO 63110, USA.
Orlando Health Orthopedic Institute, 1222 S. Orange Ave. Orlando, Florida 32806, USA.
Bone Joint J. 2016 Jan;98-B(1 Suppl A):116-9. doi: 10.1302/0301-620X.98B1.36371.
Instability is a common indication for early revision after both primary and revision total knee arthroplasty (TKA), accounting for up to 20% in the literature. The number of TKAs performed annually continues to climb exponentially, thus having an effective algorithm for treatment is essential. This relies on a thorough pre- and intra-operative assessment of the patient. The underlying cause of the instability must be identified initially and subsequently, the surgeon must be able to balance the flexion and extension gaps and be comfortable using a variety of constrained implants. This review describes the assessment of the unstable TKA, and the authors' preferred form of treatment for these difficult cases where the source of instability is often multifactorial.
不稳定是初次和翻修全膝关节置换术（TKA）后早期翻修的常见指征，在文献中占比高达20%。每年进行的TKA手术数量持续呈指数级攀升，因此拥有有效的治疗算法至关重要。这依赖于对患者进行全面的术前和术中评估。必须首先确定不稳定的根本原因，随后，外科医生必须能够平衡屈伸间隙，并自如地使用各种限制性植入物。本综述描述了对不稳定TKA的评估，以及作者针对这些不稳定原因往往是多因素的疑难病例所倾向的治疗方式。
