Ultrasound-Guided Shoulder Injections / 대한정형외과학회잡지

The shoulder pain is one of the most common problems to orthopaedic surgeons in clinic. Among therapeutic modality used to manage this pain, joint and periarticular injection, as well as suprascapular nerve block, show good clinical outcome. Ultrasound guidance is a safe technique, increasing the safety and accuracy of the procedure and reducing complications. An accurate understanding of the surface anatomy is important in performing the ultrasound-guided shoulder injections. This article aims to describe the surface anatomy and sono anatomy of both the shoulder and the surrounding structures and also summarize different infiltration techniques and peripheral nerve blocks.

Arthroscopic Evaluation of Subluxation of the Long Head of the Biceps Tendon and Its Relationship with Subscapularis Tears

BACKGROUND: The purpose of this study was to evaluate the angle between the long head of the biceps tendon (LHBT) and the glenoid during arthroscopic surgery and its correlation with biceps subluxation on magnetic resonance imaging (MRI). Furthermore, we evaluated the relationship of this angle with subscapularis tears and biceps pathologies. METHODS: MRI and arthroscopic images of 270 consecutive patients who had undergone arthroscopic surgery were retrospectively evaluated. On MRI, 60 shoulders with biceps subluxation and 210 shoulders without subluxation were identified. On the arthroscopic view from the posterior portal, the angle between the LHBT and the glenoid (biceps-glenoid angle) was measured. The biceps-glenoid angle, tears of the LHBT, degenerative superior labrum anterior to posterior (SLAP) lesions, and presence of a subscapularis tear were compared according to the presence of biceps subluxation on MRI. RESULTS: In the subluxation group, 51 (85%) had a subscapularis tendon tear and all shoulders showed biceps tendon pathologies. In the non-subluxation group, 116 (55.2%) had a subscapularis tendon tear, 125 (60%) had tears in the biceps tendon, and 191 (91%) had degenerative SLAP lesions. The incidences of subscapularis tears (p < 0.001) and biceps pathologies (p < 0.001) showed significant differences. The mean biceps-glenoid angle was 87.0° (standard deviation [SD], 11.4°) in the subluxation group and 90.0° (SD, 9.6°) in the non-subluxation group, showing a statistically significant difference (p = 0.037). CONCLUSIONS: Shoulders with subluxation of the biceps tendon on the preoperative MRI revealed more pathologies in the subscapularis tendon and biceps tendon during arthroscopy. However, the arthroscopically measured biceps-glenoid angle did not have clinical relevance to the determination of subluxation of the LHBT from the bicipital groove.

Arthroscopic Biceps Tenodesis: Soft Tissue versus Bone Fixation / 대한스포츠의학회지

The purpose of our study was to compare the clinical results between arthroscopic bone fixation on intertubercular groove using suture anchor and soft tissue fixation at the rotaor interval for biceps tenodesis when partial tear or instability of biceps tendon accompanied with rotator cuff tear. From January 2010 to January 2012, 34 cases who were performed biceps tenodesis for partial tear or instability were enrolled in our study. Mean follow-up period was 30.2 months. Bone fixation using suture anchor was performed in 18 cases, and soft tissue fixation was performed in 16 cases. Clinical result was evaluated by pain visual analogue scale (VAS), Speed test, Yergason test, muscle strength, and Constant score. Pain VAS of cases with soft tissue fixation was significantly higher than that of cases with bone fixation at 6 months and final follow-up. Positive results for the final follow-up Speed and Yergason test were checked in 4 cases (25%) with soft tissue fixation and 1 (5.6%) with bone fixation. The Popeye deformity was seen in 4 cases (25%) with soft tissue fixation and 2 (11%) with bone fixation. Constant score was improved 47 to 78 in cases with soft tissue fixation and 48 to 86 in cases with bone fixation. In patient with partial tear or instability of biceps tendon accompanied with rotator cuff tear, biceps tenodesis using soft tissue fixation showed worse result compared with bone fixation because of long duration of the pain. Therefore, when performing the biceps tenodesis, bone fixation will be recommended.