Monday, May 18, 2020

The inlay glenoid component - does it offer added value?

Anatomic total shoulder arthroplasty with an inlay glenoid component: clinical outcomes and return to activity

These authors report their clinical outcomes for total shoulder arthroplasty (TSA) using an inlay glenoid component and a stemless ovoid humeral head in 27 shoulders; patient age averaged 52.1 years, and 92.6% of shoulders were in male patients.

The preoperative Walch grade was A1 or A2 in 15 shoulders (55%), B1 in 8 (30%), and B2 in 4 (15%). Patients showed significant improvements in patient-reported outcome measures, active forward flexion, and external rotation (P < .001) with no reoperations. At an average of 3.7 months, the rate of return to work was 92.6%, with 76.0% of those patients returning to their preoperative occupational demand level. At an average of 9.1 months, 75% returned to sport, with 50% achieving the same level or a higher level of sporting activity. Annual postoperative radiographs revealed no inlay component loosening.

Comment: The results in this study of 27 shoulders using a new glenoid technology can be compared to those reported recently for 1270 total shoulder arthroplasties using a standard glenoid technology:

One and two-year clinical outcomes for a polyethylene glenoid with a fluted peg: one thousand two hundred seventy individual patients from eleven centers.

Note here the presence of possible superior decentering of the humeral head on the glenoid. See this link

 Further research will be needed to determine if this new technology adds value for the patient.

To see a YouTube of on how we do total shoulder arthroplasty, click on this link.


To see our new series of youtube videos on important shoulder surgeries and how they are done, click here.

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