Cruciate-Retaining Versus Cruciate-Substituting Total Knee Arthroplasty: A Meta-Analysis.

Background: Primary total knee arthroplasty (TKA) can be performed using cruciate-retaining (CR), cruciate-substituting (CS), or posterior-stabilized (PS) total knee arthroplasty designs. While there have been many studies comparing the outcomes of CR versus PS TKA, the current literature is lacking in systematic reviews and meta-analyses that compare outcomes of CR knees versus CS TKAs.

Methods: This study is a systematic review and meta-analysis of the literature comparing CR and CS knees with regard to survivorship, functional, and patient-reported outcomes, range of motion (ROM), biomechanics, and revision rate.

Bubble Sign: An Arthroscopic Technical Trick to Differentiate Between Partial- and Full-Thickness Rotator Cuff Tears.

Distinguishing between partial-thickness and small focal full-thickness tears of rotator cuff may be important for determining the appropriate surgical treatment options and repair constructs in the care of patients with rotator cuff pathology. This article presents a simple intraoperative technical trick to aid in identification of small full-thickness tears of the superior rotator cuff. The relatively higher-pressured subacromial space and the low-pressured glenohumeral joint are separated by the supraspinatus tendon.