• Determining the Need for Partial Versus Total Knee Arthroplasty via In-Office Diagnostic Arthroscopy

    Background : A 64-year-old retired, male presented in our office with right knee pain. He described having an active lifestyle prior to the onset of the knee pain, as well as being a former member of the armed services. He previously received a diagnosis of osteoarthritis (OA) of the medial compartment from a local orthopedic clinic. Over the course of seven months, the he underwent conservative treatments including cortisone and viscosupplement injections, physical therapy and bracing with no prolonged pain relief.

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  • The Reduction in Stability From Combined Humeral Head and Glenoid Bony Defects Is Influenced by Arm Position

    Background : Combined defects of the glenoid and humeral head are often a cause for recurrent shoulder instability.

    Purpose / Hypothesis : The aim of this study was to evaluate the influence of combined bony lesions on shoulder instability through varying glenohumeral positions. The hypothesis was that instability due to combined defects would be magnified with increasing abduction and external rotation.

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  • Stability of the Glenohumeral Joint With Combined Humeral Head and Glenoid Defects

    Background : Shoulders with recurrent anterior instability often have combined bony defects of the humeral head and glenoid.Previous studies have looked at only isolated humeral head or glenoid defects.

    Purpose / Hypothesis : The aim of this study was to define the relationship of combined humeral head and glenoid defects on anterior shoulder instability. Combined bony defects will lead to increased instability compared with an isolated defect, and the ‘‘critical’’ size of humeral head and glenoid defects that need to be addressed to restore stability will be smaller when combined rather than isolated.

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  • The Effects of Latarjet Reconstruction on Glenohumeral Kinematics in the Presence of Combined Bony Defects

    Background : Recurrent glenohumeral instability is often a result of underlying bony defects in the glenoid and/or humeral head.Anterior glenoid augmentation with a coracoid bone block (ie, Latarjet procedure) has been recommended for glenoid bone loss in the face of recurrent instability. However, no study has investigated the effect of Latarjet augmentation in the setting of both glenoid and humeral head defects (Hill-Sachs defects).

    Purpose : To evaluate the glenohumeral kinematics of the Latarjet procedure in the presence of combined bony defects.

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