The most complex topic is represented by operative treatment of type IV lesions of rotator cuff. Palliative arthroscopic resection of rotator cuff did not produce optimal results. We thus intend to evaluate the newly implemented surgical techniques at our department. Fifty-six patients with type IV rotator cuff lesions were treated surgically between October 2007 and December 2010. In 6 patients, combined operations had to be performed because of their pathology, and these were not included in detailed evaluation. The population selected for detailed evaluation of new surgical techniques included 50 patients (mean age: 59 years, range: 41–73 years). The patients were randomized into two subpopulations, each formed by 25 people. Both subpopulations can be considered representative and comparable. All operations were performed in the “beach-chair” position in general anesthesia or/and in interscalenic block. After type IV lesion was diagnosed, the prespecified surgical procedure followed – partial muscle transfer of subscapularis muscle tendon (Karas) or partial non-anatomic rotator cuff reconstruction (Burkhart). The results were evaluated after 6 months using the modified Constant Functional Score. The following parameters were assessed: sex, age, side of the operation, dominance of the limb, Constant Functional Score pre-operatively and post-operatively, subjective and objective evaluation, pain, activities, movement and muscle strength, Constant Score improvement, improvement in its individual items and subitems, pain pre-operatively and post-operatively. In older patients with type IV lesions, we have good experience with Karas method while in younger and more active patients, Burkhart method seems to be more useful.

Department of Orthopaedics and Traumatology Clinic of Traumatology of Musculoskeletal System Central Military Hospital Faculty Military Hospital Prague Střešovice

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