Arthroscopic Tenotomy for Lesions of the Long Head of the Biceps Brachii / 대한정형외과학회잡지

PURPOSE: Historically, a variety of tenodesis have been performed for the tendinopathy of the long head of biceps. Despite their good short-term results, long-term results of traditional tenodesis were controversial. Biceps tenotomy was first described by Walch in treatment of cases with massive rotator cuff tear. There were few reports for tenotomy as definite treatment method. We present the results of arthroscopic tenotomy of tendinopathy of long head of biceps. MATERIALS AND METHODS: From January 1998 to February 2000, 14 shoulders of 14 patients were treated with arthroscopic biceps tenotomy. Mean follow-up period was 30 months. A mean age was 55 years old. The pathologies of the long head were partial rupture in 8 cases, tendon subluxation in 3 cases, SLAP lesion in 2 cases, and tenosynovitis in 1 case. Concomitant pathologies were rotator cuff tears in 3 cases, subacromial bursitis in 3 cases and so, additional procedure were performed. Postoperative outcome was assessed by the American Shoulder and Elbow Surgeons (ASES) Scoring System. RESULTS: The mean preoperative ASES score was 35.0 and last follow up score was 85.2. Popeyes deformities were demonstrated in 6 cases, but none of the cases complained of pain or cosmetic problem. CONCLUSION: Arthroscopic tenotomy for long head of biceps tendon is simple procedure. It demostrate a rapid recovery without significant complication. It appears that the procedure is effective in pain relief and functional recovery.

Characteristics of waveforms of facial electroneurography (ENoG) according to different electrode placement in normal persons / 대한이비인후과학회지

BACKGROUND AND OBJECTIVES: Electroneurography (ENoG) is regarded as a useful test for evaluating the degree of facial nerve degeneration and predicting the prognosis of the patients with facial nerve palsy. The test results could be changed by many factors, such as electrode position, skin resistance and stimulus magnitude, etc. In this study, the waveforms of ENoG in normal persons were evaluated according to different electrode placement in the nasal alae and in the nasolabial fold, respectively. MATERIALS AND METHODS: Twenty volunteers with normal facial function were included in this study. ENoG was recorded with the recording electrode placed in two different locations, one in the nasolabial fold and the other in the nasal alae, in each person. The recording waves were compared according to their amplitude, sharpness and types of waveform. Interside variability was compared. RESULTS: The amplitude was not significantly different at two locations, but the sharpness was significantly increased when recorded at the nasal alae. Biphasic waveform was more common when recorded at the nasal alae than at the nasolabial fold. This meant that the masseter artifacts were present more commonly at the nasolabial fold. The average of interside variability was 22.77% (17.62) at the nasolabial fold and 23.71% (15.35) at the nasal alae (p>0.05). CONCLUSION: Different electrode placement resulted in different waveforms. By placing the recording electrode at the nasal alae, more biphasic and sharpened waveforms were recorded and less masseter artifacts were observed.