THR is stiff spine - Stuck Sitting

Case of stiff spine in an outlet view  suggesting a stuck sitting position. To avoid anterior dislocation a neutral version and closed cup with a nonmodular dual mobilty cup was chosen

 

popliteomeniscal fascicle repair

patient felt a lateral pop. Figure of four test was -ve. felt unstable with lachmanb1A and negative pivot shift. Lateral meniscus had a small bucket handle tear and lax anterior meniscopopliteal fascicle. could subluxe lateral meniscus by 50 percent at the anterior part of pop hiatus and less posteriorly