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  • Title: [Clinical results of arthroscopic tenotomy of the long head of the biceps brachii in full thickness tears of the rotator cuff without repair: 40 cases].
    Author: Maynou C, Mehdi N, Cassagnaud X, Audebert S, Mestdagh H.
    Journal: Rev Chir Orthop Reparatrice Appar Mot; 2005 Jun; 91(4):300-6. PubMed ID: 16158544.
    Abstract:
    PURPOSE OF THE STUDY: Appropriate treatment of irreparable rotator cuff tears in patients without osteoarthritic shoulder joints remains a subject of debate. Medical treatment, a substitution muscle flap, and palliative arthroscopic treatment have been proposed. Arthroscopic tenotomy of the long head of the biceps brachii is warranted because this tendon is often the cause of part or all of the pain. If there is a full thickness tear of the rotator cuff, the exposed tendon of the long head of the biceps brachii can, because of its anterosuperior position, become impinged against the acromial vault during forward flexion. The purpose of this work was to evaluate the mid-term clinical and radiological results of arthroscopic tenotomy of the long head of the biceps brachii during treatment of full thickness tears of the rotator cuff. MATERIAL AND METHODS: The series included 40 shoulders operated on for tenotomy alone (n=32) or in combination with acromioplasty (n=8). The long head of the biceps brachii was in place in 23 shoulders (58%), displaced in seven and subluxed in five. The position was not determined in five. At last follow-up, the mean rough Constant score was 58 points, giving a gain of 20 points. The gain for pain was +7.1 points, +6.4 points for activity, and +6.6 points for motion. After the operation, muscle force for elbow flexion-supination was decreased 40% compared with an age-, sex- and dominance-matched control group. 86% of the patients were satisfied with the outcome and only two patients were disappointed by the asymmetry of arm muscle volume. Radiographically, at last follow-up there were no signs of superior excentration of the humeral head and the subacromial space, which measured 7.38 mm preoperatively was 7.19 mm postoperatively. Likewise only two shoulders progressed to excentered osteoarthritis at 41 and 72 months. DISCUSSION: Mid-term results of arthroscopic tenotomy of the long head of the biceps brachii are satisfactory. The technique is simple and has limited functional consequences. The procedure has an undeniable impact on pain and has allowed a 34 degree gain in anterior flexion of the shoulder. Complementary acromioplasty was not found to provide a supplementary benefit in this series. Nevertheless, the degradation of the result in one female patient at six years suggests we should be prudent concerning the long-term benefit of this procedure which should be reserved for irreparable tears in patients with minimal functional demands.
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