Stress radiography and posterior pathological laxity of knee: Comparison between two different techniques

Clinical, Functional, and Morphological Evaluations of Posterior Cruciate Ligament Reconstruction With Remnant Preservation

“…Surgical indications for them were more than grade II PCL injuries with or without more than grade II PLC injuries. 16,58 The inclusion criteria were (1) a minimum follow-up period of 2 years, (2) 8-mm increased posterior tibial translation compared with that of the uninvolved knee on posterior stress radiography, 17,21 (3) a difference of .10°between knees on the dial test at 30°and 90°w ith a 5-mm increase in the varus gap compared with the uninvolved knee on varus stress radiography in cases of combined PLRI, 34,39,58 (4) transtibial PCL reconstruction with remnant preservation using a transposterior septal portal, and (5) PLC reconstruction using the single fibular sling method in cases of combined PLRI. We excluded patients with (1) bilateral injuries, (2) multiple ligament injuries except for a combined PCL and PLC injury, (3) use of other PCL or PLC reconstruction techniques, (4) combined lower extremity fractures, (5) infections, (6) revision surgery, (7) more than grade 3 cartilage lesions as assessed by the Outerbridge classification system, (8) varus or valgus malalignment in a lower extremity, and (9) prior surgery on the involved knee.…”

Stress Radiography for the Diagnosis of Knee Ligament Injuries: A Systematic Review

“…Its applications include diagnosing acute and chronic injuries [1,21,30,32], comparing instability preoperatively and postoperatively [20,24,39,55], and monitoring stability in nonoperatively treated patients [17]. A variety of stress techniques have been described that assess ligament stability using an anteriorly, posteriorly, varus-, or valgus-directed force to the knee [10,14,17,28,29,37,40,41,43,45]. Side-to-side differences in the amount of displacement (anterior or posterior) or gapping (varus or valgus) increase suspicion of a functional deficit in knee ligament stability.…”

Stress Radiography for Multiligament Knee Injuries: A Standardized, Step-by-Step Technique

“…Comparisons are performed side to side. A difference in posterior tibial translation of greater than 7 mm between the knees indicates a complete lesion of the posterior cruciate ligament, 15,[20][21][22] as observed in Fig 8.…”

“…Exposure to ionizing radiation is a negative point; however, the benefits are greater than the harm. 18 Among the various forms of assessment for posterior stress radiographs, the kneeling-view method was shown to be a reliable technique for assessing posterior cruciate injury by Garofalo et al 12,22 MRI is an inaccurate test to analyze a chronic posterior cruciate ligament injury. 20 In our opinion, MRI may show healing of the posterior cruciate ligament but with a nonfunctional status.…”