Midterm results of open reduction and internal fixation of isolated posterior cruciate ligament avulsion fracture

Abstract

Purpose Although posterior cruciate ligament avulsion fracture is a rare condition, but lack of its treatment results in knee instability. Identification of functional and clinical outcomes after open reduction and internal fixation was the main goal of this research. Methods Thirty-one patients, underwent operation due to isolated tibial posterior cruciate ligament avulsion fracture, were followed-up for a mean of 24 months (range 13-44 months). Outcome was evaluated by International Knee Documentation Committee form. Results The most common cause of injury was motor vehicle accident (in 26 cases). Finally, 74.2% of cases had normal or nearly normal grade. Also, no one was graded as D (severely abnormal). The functional result was better when the avulsed fragment size was bigger (p value 0.037). Conclusion Treatment of tibial posterior cruciate ligament avulsion fracture through open reduction and internal fixation with screw and washer results in acceptable functional outcome in about three quarters of cases.

Evaluation of Knee Joint after Open Reduction and Internal Fixation Surgery of Posterior Cruciate Ligament in Patients with Avulsion Fracture

“…By considering these factors in future studies, the error probability can be minimised. The Lysholm knee score in the present study was not significantly different from other studies [11], [13], [15], [16], and most patients achieved a good and acceptable score after the surgery. The patients in this study had no problem with knee joint instability and disabling functional disorder compared to their normal knee.…”

“…Positive posterior drawer test and the results of the questionnaire (relatively good and close to normal) were one of the considerable issues in this study and other similar studies, such as the study by Rezazadeh et al, [15] or Sergio Rocha et al, in Brazil [11]. Such results were not expected by assuming that the present study investigated the posterior cruciate ligament avulsion considering the preliminary design of the study.…”

Management of Posterior Cruciate Ligament Tibial Avulsion Injuries: A Systematic Review

“…Eight studies reported scores via the IKDC. 4,9,10,19,20,28-30 A total of 182 knees were treated surgically, of which the IKDC reported 65.9% as normal or grade A, 29.1% as nearly normal or grade B, and 10.4% as abnormal or grade C. Two studies reported on the Tegner activity score. 30,31 Sabat et al 30 reported a mean preinjury Tegner score as 7.1, compared with a mean postinjury score of 6.8.…”

“…¶ Postoperative stiffness owing to arthrofibrosis was a documented complication in a total of 8 patients dispersed in 5 of the 20 studies. 4,20,26,29,40 In 5 of the 8 patients, postoperative immobilization was maintained for ≥3 weeks. All 8 patients underwent manipulation under anesthesia for this complication.…”

All-Arthroscopic Posterior Cruciate Ligament Distal Reattachment With Extracortical Fixation

“…The posterior cruciate ligament (PCL) is the stronger of the 2 cruciate ligaments of the knee and has a major role in stabilizing the knee joint 1, 2. Functionally, the PCL is a primary restraint to posterior tibial translation at all flexion angles and also for internal rotation beyond 90° of flexion 3 .…”