Review Question - QID 7809

A 71-year-old woman reports the insidious onset of shoulder pain at night and when moving her shoulder. She cannot raise her arm above shoulder level. Physical therapy has failed to provide pain relief or improve function. An injection relieved her pain in the office, but she could not raise her arm above shoulder level. A radiograph is shown in Figure 21. What surgical procedure will provide the best chance of restoring above shoulder function and pain relief?