scholarly journals Ligament Balancing in Severe Osteoarthritis Knee with Large Cyst and Bursae - A Rare Case Report with Review of Literature

2021 ◽  
Vol 10 (16) ◽  
pp. 1174-1176
Author(s):  
Amit Lakhani ◽  
Ena Sharma ◽  
Jose Antonio De Compos Martins ◽  
Rita Alcada
Keyword(s):  
Total Knee Replacement ◽  
Knee Replacement ◽  
Cruciate Ligament ◽  
Lateral Side ◽  
Varus Knee ◽  
Large Cyst ◽  
Ligament Balancing ◽  
Medial Side ◽  
Total Knee ◽  
Flexion And Extension

The main indication of total knee replacement (TKR) is pain and restricted range of motion of the knee. The key to a successful total knee replacement is correct alignment in flexion and extension. Here we report a case of TKR in severe osteoarthritis (O / A) knee with a large cyst on the medial side of the knee, resulting in the problem of ligament balancing and management with help of an Arthrex Internal brace. Proper diagnosis and treatment plan help to overcome the challenging cases of varus knee. The indication of total knee replacement is pain and restricted range of motion of the knee. Several authors have reported successful outcomes on patient satisfaction in the follow-up of almost ten to fifteen years. 1 Additionally, the results of surgery are satisfactiry with good implant survival. 2 But some patients indeed have poor results and some may require revision surgery in a short duration. The key to a successful total knee replacement is correct alignment and stability in flexion and extension.3 The ligament after balancing of the correctly aligned knee must consider the function of the resected ligaments in flexion and extension, because in TKR both anterior cruciate ligament (ACL) and posterior cruciate ligament (PCL) are usually sacrificed. In other words, total knee replacement is a soft tissue surgery in which bone is replaced. In the varus knee, medial side structures are tight and compensatory laxity on the lateral side. So knee stability should be managed by the remaining ligamentous structures that are both medial and lateral collateral and capsular ligaments. 4 The gap technique is the gold standard for ligament balancing in total knee replacement. 5 That is the execution of equal medial and lateral gaps as well as balanced flexion and extension gaps. This is usually obtained by medial side release in varus knee as the medial side is contracted and lateral side release in valgus knee accordingly. Here we report a case of TKR in severe osteoarthritis knee with a large cyst on the medial side of the knee, resulting in the problem of ligament balancing and management.

scholarly journals The role of the posterior cruciate ligament in total knee replacement

2012 ◽  
Vol 1 (4) ◽  
pp. 64-70 ◽  
Author(s):  
M. A. Ritter ◽  
K. E. Davis ◽  
J. B. Meding ◽  
A. Farris
Keyword(s):  
Total Knee Replacement ◽  
Posterior Cruciate Ligament ◽  
Knee Replacement ◽  
Cruciate Ligament ◽  
Total Knee

Evaluation of the relationship of tibiofemoral kinematics before and after total knee replacement in an in vitro model of cranial cruciate deficiency in the dog

2016 ◽  
Vol 29 (06) ◽  
pp. 484-490 ◽  
Author(s):  
Rebecca Howie ◽  
Timothy Foutz ◽  
Curtis Cathcart ◽  
Jeff Burmeister ◽  
Steve Budsberg
Keyword(s):  
Total Knee Replacement ◽  
Knee Replacement ◽  
External Rotation ◽  
Cruciate Ligament ◽  
Flexion Extension ◽  
Before And After ◽  
Total Knee ◽  
Tibiofemoral Kinematics ◽  
The Relationship

SummaryObjective: To investigate the relationship between tibiofemoral kinematics before and after total knee replacement (TKR) in vitro.Animals: Eight canine hemipelves.Methods: A modified Oxford Knee Rig was used to place cadaveric limbs through a range of passive motion allowing the kinematics of the stifle to be evaluated. Four measurements were performed: a control stage, followed by a cranial cruciate transection stage, then following TKR with the musculature intact stage, and finally TKR with removal of limb musculature stage. Joint angles and translations of the femur relative to the tibia, including flexion-extension versus adduction-abduction, flexion-extension versus internal-external rotation, as well as flexion-extension versus each translation (cranial-caudal and lateral-medial) were calculated.Results: Significant differences were identified in kinematic data from limbs following TKR implantation as compared to the unaltered stifle. The TKR resulted in significant decreases in external rotation of the stifle during flexion-extension compared to the limb prior to any intervention, as well as increasing the abduction. The TKR significantly increased the caudal translation of the femur relative to the tibia compared to the unaltered limb. When compared with the cranial cruciate ligament-transection stage, TKR significantly decreased the ratio of the external rotation to flexion.Discussion: All three test periods showed significant differences from the unaltered stifle. The TKR did not completely restore the normal kinematics of the stifle.

scholarly journals Primary total knee replacement using dished polyethylene with resected posterior cruciate ligament

2021 ◽  
Vol 7 (4) ◽  
pp. 781
Author(s):  
Mohan M. Kumar ◽  
Satvik N. Pai ◽  
Pravin K. Vanchi ◽  
Raghav Ravi ◽  
Syam Nath
Keyword(s):  
Total Knee Replacement ◽  
Posterior Cruciate Ligament ◽  
Knee Replacement ◽  
Tibial Component ◽  
Cruciate Ligament ◽  
Womac Score ◽  
Senior Author ◽  
Kaplan Meier ◽  
Total Knee

<p><strong>Background: </strong>The choice between preserving, sacrificing or substituting the posterior cruciate ligament (PCL) is always a controversial topic in total knee replacement (TKR). Dished polyethylene insert with PCL resection enables correction of the commonly present fixed flexion and varus deformities. Additionally, the risk of premature wear of polyethylene is less because of the confirming articular geometry between the femoral and tibial component.<strong></strong></p><p><strong>Methods: </strong>This is a retrospective study in which we studied 120 knees in 95 consecutive patients undergoing primary TKR by the senior author at our institute. We used TKR system with dished metal backed polyethylene tibial component. PCL resection was performed in all cases. Pre-operative and post-operative functional assessment were done using knee society clinical scores and Western Ontario and McMaster universities osteoarthritis index (WOMAC). All radiographs were assessed using the knee society Roentgenographic scoring system (KSRES). Statistical analysis was performed using paired student t tests. Survivorship was determined using Kaplan-Meier survivorship curves. <strong></strong></p><p><strong>Results: </strong>Mean follow-up was 8 years. Range of motion increased from 75 degrees to 110 degrees.  The knee society pain score increased from 30 to 94. The knee society function score increased from 35 to 75. WOMAC score increased in terms of pain, stiffness and physical function.<strong></strong></p><p><strong>Conclusions: </strong>We conclude that deep dish bearing is a viable option in presence of deficient PCL and provides adequate stability and functional outcome. We need a larger sample size, multicentre trial and longer follow-up to see for complication rate, revision rate and survival.</p>

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