Klinische und kernspintomografische Ergebnisse nach arthroskopischer Rotatorenmanschettenrekonstruktion in double-row Technik: Eine serielle Studie
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Background: Rotator cuff reconstruction using arthroscopic double-row technique enables a better repair of the anatomical footprint at the tendon insertion. Objective of this study was to illustrate structural and functional results during recovery following double-row reconstruction. Methods: 45 patients with mid-sized ruptures of the supraspinatus tendon were assessed prospectively and underwent arthroscopic surgery using the double-row technique. Clinical and MRI follow-up examinations were carried out for all patients after 6, 12, 26, and 52 weeks. Low-field MRI was used during the follow-up examinations to determine tendon integration, signal changes in the tendon, extent of bone marrow edema near the enclosed absorbable suture anchors, muscle atrophy, and degree of muscular fatty degeneration. Results: Significant pain reduction was already reported at the 6-week follow-up. The Constant Score (CS) after 12 weeks showed a slightly significant increase (52->61 / p=0.049). (This was mainly due to an increase in the Activities of Daily Living (ADL) and further pain reduction.) After 26 weeks, CS showed highly significant increase for the first time with a value of 78 (p<0.0001). Significant improvements in strength were first measured at the 52-week follow-up (9->19 / p=0.0006). The MRI examinations showed a highly significant reduction of the bone marrow edema between weeks 12 and 26 (p<0.0001). Highly significant improvement of the tendon signal was found between weeks 26 and 52 (p<0.0001). Tendon integration showed a left shift over time. Conclusions: Arthroscopic double-row reconstruction of mid-sized rotator cuff ruptures led to rapid pain reduction, and, beginning at week 12 postoperative, to constantly increasing clinical improvement of the preoperative findings in the Constant Score. Improvement of MRI tendon signals occurred parallel to improvements in strength values from week 26-52.
Erstellung / Fertigstellung
Normierte SchlagwörterKernspintomografie [GND]
Magnetic resonance imaging [MeSH]
Rotator cuff [MeSH]