Postoperative pain after arthroscopic versus open rotator cuff repair. A prospective study.

INTRODUCTION

Although the arthroscopic technique is becoming the gold standard for rotator cuff tendon repair, there is no proof that this technique results in less postoperative pain compared to open repair. The aim of this study was to prospectively compare the postoperative pain level after arthroscopic or open rotator cuff repair and to define factors that could influence its course.

MATERIALS AND METHODS

Between January 2012 and January 2013, 95 patients were operated for a rotator cuff tear: 45 using an arthroscopic technique and 50 an open technique. Daily analgesic use and self-evaluation of pain level using a visual analogic scale were recorded preoperatively and twice a day postoperatively during the first 6 weeks. These data were compared between the two groups and analyzed according to patients' demographic data and preoperative evaluation of the tear.

RESULTS

The preoperative pain level was equivalent in the two groups (P=0.22). Postoperatively, level-2 analgesic medication use was greater in the arthroscopic group after the 4th week (P=0.01). A pain-free shoulder was obtained before the 6th week in 75% and 66% of the patients after arthroscopic or open repair, respectively (P=0.34). There was a positive correlation between the preoperative and postoperative pain level (r=0.25; P=0.02). Work compensation patients experienced more pain postoperatively (P=0.08). Level-III analgesic medication use was greater for patients with massive rotator cuff tear (P=0.001).

CONCLUSION

No evidence was found on the superiority of arthroscopy versus open repair of rotator cuff tear concerning the postoperative pain level. The choice of the surgical technique should not be based on this argument.

LEVEL OF EVIDENCE

II.