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Rehabilitation Guidelines for Knee Multi-Ligament Repair/Reconstruction

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UW HEALTH SPORTS REHABILITATION Rehabilitation Guidelines for Knee Multi-Ligament Repair/Reconstruction The knee joint is comprised of an A B articulation of three bones: the femur Medial (thigh bone), tibia (shin bone), Collateral Ligament Lateral and patella (knee cap). The femur (MCL) Collateral has a medial (inside) and a lateral Ligament (outside) condyle that forms a radial (LCL) or rounded bottom that comes together, forming a trochlear groove for the patella to move. The medial and lateral condyle sit on top of the Fat LM Fat Pad tibia, which has a flat surface called Pad MM the tibial plateau. The knee also is comprised of two Fibula menisci, which are fibro-cartilaginous structures and each meniscus Figure 1 a: Medial or inner view of the knee showing the medial collateral ligament, is thinner towards the center of b: Lateral or outer view of the knee showing the lateral collateral ligament. the knee and thicker toward the Image property of Primal Pictures, Ltd., primalpictures.com. Use of this image without authorization from Primal Pictures, Ltd. is prohibited. periphery of the knee, giving it a wedge-shaped appearance. The Femur medial meniscus forms a “c” shape and is located between the medial ACL femoral condyle and the medial ACL LCL aspect of the tibia. The lateral meniscus forms an oval shape and is PCL located between the lateral femoral condyle and the lateral aspect of the MM LM tibia. The menisci act to improve stability between the tibia and the Menisci MCL Tibia femur secondary to its wedge shape that acts to limit translation. Figure 2 a: Anterior or front view of the knee showing the anterior cruciate ligament (ACL), The knee also has four major b: Posterior or back view of the knee showing the posterior cruciate (PCL) ligaments, which connect bone to Image property of Primal Pictures, Ltd., primalpictures.com. Use of this image without authorization from Primal Pictures, Ltd. is prohibited. bone and provide stability to the joint. These ligaments are termed the femur and tibia medially (on move inward. The LCL connects the the medial collateral ligament (MCL) the inside) and resists valgus femur and the fibula laterally (on (Figure 1a), lateral collateral ligament (knee buckling in) knee motion. the outside) and resists varus (knee (LCL) (Figure 1b), anterior cruciate A common mechanism of injury buckling out) knee motion. ligament (ACL) (Figure 2a) and to the MCL occurs when a force is A common mechanism of injury posterior cruciate ligament (PCL) applied to the outer knee while the to the LCL occurs when a force is (Figure 2b). The MCL connects foot is planted, causing the knee to applied to the inner knee while the The world class health care team for the UW Badgers and proud sponsor of UW Athletics UWSPORTSMEDICINE.ORG 621 SCIENCE DRIVE • MADISON, WI 53711 ■ 4602 EASTPARK BLVD. • MADISON, WI 53718 Rehabilitation Guidelines for Knee Multi-Ligament Repair/Reconstruction ligament damage. Recent studies have A B suggested patients receiving operative treatment have improved functional outcomes when compared with non- operative treatment. The timing of surgery is critical with evidence that shows if surgery is done immediately following the injury, an individual may experience increased post- operative stiffness and scarring. Research has shown that outcomes of multi-ligament reconstruction are best when the surgery is done within three weeks from injury after Figure 3 – a: Radiograph showing an example of anterior knee dislocation, the patient can reduce the swelling b: Radiograph showing an example of posterior knee dislocation from the initial injury. Surgery will foot is planted, causing the knee to ligaments is uncommon and usually vary depending on the extent of the move outward. The ACL and PCL occurs from a high energy trauma ligament damage and the specific attach the tibia and femur deep inside such as an automobile accident, fall ligament(s) involved. If the ligament the knee joint and cross one another or a significant sports injury. When is avulsed from the bone (pulled off like guide wires. The ACL restrains two or more of the ligaments are the bone) then the surgeon may be the tibia from moving forward and ruptured the tibia and the femur able to perform a primary repair of rotating excessively on the femur. may lose contact from one another attaching the ligament back to the Most ACL injuries occur without and spontaneously come apart or bone. When a ligament is ruptured contact and are most common when dislocate. A knee dislocation between it often needs to be reconstructed, an individual plants their foot and the femur and the tibia is named by which means replacing the ligament changes direction while participating the direction the tibia is orientated with other tissue. This can be in sports. The PCL resists the tibia from the femur in a dislocated done by using an autograft (donor from moving back excessively on the position. tissue from an injured person) or femur. PCL injuries most commonly an allograft (donor tissue from a Secondary injuries such as nerve occur when an anterior force is cadaver). damage and or vascular injury are applied on the tibia such as when common following a knee dislocation. Rehabilitation following multi-ligament the lower leg hits the dashboard of a Often the vascular or nerve injuries reconstruction is vital to regaining car during a car accident or landing require emergency attention to save motion, strength and function. Initially on the knee with the knee flexed the limb or possibly the individual’s after surgery the knee is braced approximately 90 degrees. life. Once the knee is evaluated and and individuals use crutches with Ligamentous injuries are termed secondary injuries are repaired, the minimal to no weight bearing for sprains and are graded based on initial treatment of the multi-ligament the first six weeks. Gradually more the severity of the injury. A grade 1 injuries includes immobilization, weight bearing and mobility will be ligament sprain is a minimal injury which is followed by continued allowed to prevent stiffness post- with little to no increase in laxity evaluation and diagnostic testing to operatively. The rehabilitation will to the ligament whereas a grade determine the extent of the ligament slowly progress into strengthening, 3 sprain is a complete rupture to damage. Treatment options include gait and balancing activities. The the ligament. Knee injuries that surgical and nonsurgical approaches UW Health sports rehabilitation involve one of the four ligaments to care. Treatment decisions often are guidelines are presented in a criterion are somewhat common. Injuring made based-on each individual’s pre- based progression. General time two or more of the four major knee injury function and the extent of the frames refer to the usual pace of 2 UWSPORTSMEDICINE.ORG 621 SCIENCE DRIVE • MADISON, WI 53711 ■ 4602 EASTPARK BLVD. • MADISON, WI 53718 Rehabilitation Guidelines for Knee Multi-Ligament Repair/Reconstruction rehabilitation. However, individual injury severity. Specific time frames, patients will progress at different rates restrictions and precautions may also depending on their age, associated be given to enhance wound healing injuries, pre-injury health status, and to protect the surgical repair/ rehab compliance, tissue quality and reconstruction. PHASE I (surgery to 8 weeks after surgery) Appointments • Begin rehabilitation 1-3 days after surgery and continue 2-3 times per week Rehabilitation Goals • Protect the post-surgical knee • Restore normal knee extension and improve scar and patellar mobility • Eliminate effusion (swelling) • Restore leg control Initiate regaining knee flexion Precautions • Non weight bearing (NWB) for 6 weeks • 25-50% weight bearing beginning week 7 post-operatively • 50% to 100% weight bearing beginning week 8 post-operatively • Must wear the brace locked for all weight bearing activities to allow ligaments to heal • Use axillary crutches for normal gait at all times • No open chain hamstring strengthening or isolated hamstring exercises • No hamstring stretching • Passive range of motion (PROM) only with posterior support to protect PCL repair Range of Motion Exercises • Range of Motion (ROM): Parameters allow for full extension (avoid hyperextension) with no flexion limits • Extension: Knee extension on a bolster, avoid prone hangs secondary to hamstring guarding • Flexion: PROM only. Perform in a seated position with posterior support or perform in a prone position Suggested Therapeutic Exercise • Soft tissue mobilization to anterior knee • Patellar mobilization • Electric stimulation as necessary to stimulate quad control • Quad sets • Leg lifts in standing with brace on for balance and hip strength – avoid hip extension secondary to hamstring restrictions • Straight leg raise (SLR) with brace locked • Ankle dorsiflexion (DF) and plantarflexion (PF) with manual resistance Cardiovascular Exercise • Upper body circuit training or upper body ergometer (UBE) Progression Criteria • Pain free initiation of weight bearing • Mild to no effusion (swelling) • Knee flexion 100-125° UWSPORTSMEDICINE.ORG 3 UWSPORTSMEDICINE.ORG 621 SCIENCE DRIVE • MADISON, WI 53711 ■ 4602 EASTPARK BLVD. • MADISON, WI 53718 621 SCIENCE DRIVE • MADISON, WI 53711 ■ 4602 EASTPARK BLVD. • MADISON, WI 53718 Rehabilitation Guidelines for Knee Multi-Ligament Repair/Reconstruction PHASE II (begin after meeting Phase I criteria, usually 8 weeks after surgery) Appointments • Rehabilitation appointment are 1-2 times per
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