SURGICAL TREATMENT OF COMBINED INJURY TO ANTERIOR CRUCIATE LIGAMENT, POSTERIOR CRUCIATE LIGAMENT, AND MEDIAL STRUCTURES
Section snippets
ANATOMY AND BIOMECHANICS
Injuries involving the ACL–PCL–MCL complex result in multiplanar instability. Analyzed separately, the ACL and PCL are the primary stabilizers of the knee, resisting anterior and posterior translation, respectively. As a separate entity, the superficial medial collateral ligament, has been shown to resist primarily valgus stress at 0° and 45°.30 Combined with a posterior cruciate ligament injury, however, these structures have been shown to function as a secondary restraint to posterior
EVALUATION
Most knee dislocations are obvious on initial clinical presentation, whereas evaluation of patients with multiple-ligamentous knee injuries requires a high index of suspicion to exclude the possibility of knee dislocation with spontaneous reduction. The treatment algorithm for the evaluation and treatment of these injuries in this article is illustrated in Figure 1. The process begins with a brief history that includes the mechanism of injury and associated injuries. A careful vascular and
TREATMENT APPROACH
Reports that address multiple-ligament knee injury results advocate an operative reconstruction of the cruciate ligaments with variability in the approach towards the medial structures. Timing of the procedure is based on the degree of injury involving the medial collateral ligament.19, 20, 23, 25, 29 The MCL is an extra-articular structure with a capacity for healing without operative repair. Basic science and clinical studies support a conservative approach when dealing with these injuries in
SURGICAL TECHNIQUE
A recent method of reconstruction of the posterior cruciate ligament uses a double-bundle technique that reconstructs the anterolateral and posteromedial components of the posterior cruciate ligaments, whereas the traditional single-bundle techniques recreate the larger anterolateral component of this structure.7 Although biomechanical studies have demonstrated the superiority of this technique in a cadaveric model, in which properties of the double-bundle construct more closely resemble the
TREATMENT RESULTS
Different approachs have been reported with respect to this combination of injury, and no specific treatment consensus exists. Although the treatment approach of isolated injuries to the MCL and ACL–MCL injuries is accepted, these treatment principles cannot be extrapolated to ACL–PCL–MCL injuries.2, 3, 4, 13, 14, 15, 16, 17, 24 Presently, two treatment approaches have been recommended for this injury complex.
The authors' treatment approach, as outlined, recommends repair or reconstruction of
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Single-Stage Surgical Treatment of Multi-ligament Knee Injuries Results in Lower Cost and Fewer Complications and Unplanned Reoperations Compared With Staged Treatment
2022, Arthroscopy, Sports Medicine, and RehabilitationOpen reduction and internal fixation in a one-stage anterior cruciate ligament reconstruction surgery for the treatment of tibial plateau fractures: A case report and literature review
2018, InjuryCitation Excerpt :With a minimum follow-up of 2 years, good results were seen in functional outcomes, range of motion, and strength. Similarly, several other studies reported satisfactory outcomes [16–23]. Millett et al.described [17] that the valgus laxity in the MCL deficient knee was stabilised by remaining structures, particularly the ACL.
Staged management of knee dislocation in polytrauma injured patients
2013, InjuryCitation Excerpt :This injury could be an isolated soft tissue lesion or it can be more extensive involving bone, ligament, vascular and neural tissue damage. There are several principles that guide the management of knee dislocation.3–11 However, optimal management strategy for this type of injury in polytrauma injured patients remains controversial and has not been investigated adequately.
Acute knee dislocation: An evidence based approach to the management of the multiligament injured knee
2011, InjuryCitation Excerpt :The phenomenon of the PCL – intact knee dislocation has been reported, however [7,11,62]. Knee dislocation is uncommon, representing 0.02–0.2% of orthopaedic injuries [23,25,28,72,76]. It occurs in younger patients with a male-to-female ratio of 4:1.
Machine Learning-Based Performance Comparison to Diagnose Anterior Cruciate Ligament Tears
2022, Journal of Healthcare EngineeringSensitivity analysis of the knee ligament forces to the surgical design variation during anterior cruciate ligament reconstruction: a finite element analysis
2022, Computer Methods in Biomechanics and Biomedical Engineering
Address reprint requests to Christopher D. Harner, MD, UPMC, Center for Sports Medicine and Rehabilitation, 4601 Baum Boulevard, Pittsburgh, PA 15213