Clin Orthop Surg.  2009 Jun;1(2):96-104. 10.4055/cios.2009.1.2.96.

The Factors Affecting the Clinical Outcome and Integrity of Arthroscopically Repaired Rotator Cuff Tears of the Shoulder

Affiliations
  • 1Department of Orthopaedic Surgery, Kyung Hee University School of Medicine, Seoul, Korea. shoulderrhee@hanmail.net

Abstract

BACKGROUND: The purpose of this study was to evaluate the functional and anatomic results of arthroscopic rotator cuff repair, and to analyze the factors affecting the integrity of arthroscopically repaired rotator cuff tears of the shoulder.
METHODS
One hundred sixty-nine consecutive shoulders that underwent arthroscopic rotator cuff repair, had a postoperative MRI evaluation and were followed for at least two years were enrolled in this study. The mean age was 57.6 years (range, 38 to 74 years) and the mean follow-up period was 39 months (range, 24 to 83 months).
RESULTS
The rotator cuff was completely healed in 131 (77.5%) out of 169 shoulders and recurrent tears occurred in 38 shoulders (22.5%). At the last follow-up visit, the mean score for pain during motion was 1.53 (range, 0 to 4) in the completely healed group and 1.59 (range, 0 to 4) in the group with recurrent tears (p = 0.092). The average elevation strength was 7.87 kg (range, 4.96 to 11.62 kg) and 5.25 kg (range, 4.15 to 8.13 kg) and the mean University of California at Los Angeles score was 30.96 (range, 26 to 35) and 30.64 (range, 23 to 34), respectively (p < 0.001, p = 0.798). The complete healing rate was 87.8% in the group less than 50 years of age (49 shoulders), 79.4% in the group over 51 years but less than 60 years of age (68 shoulders), and 65.4% in the group over 61 years of age (52 shoulders, p = 0.049); it was 96.7% in the group with small-sized tears (30 shoulders), 87.3% in the group with medium-sized tears (71 shoulders), and 58.8% in the group with large-sized or massive tears (68 shoulders, p = 0.009). All of the rotator cuffs with a global fatty degeneration index of greater than two preoperatively had recurrent tears.
CONCLUSIONS
Arthroscopic repair of full-thickness rotator cuff tears led to a relatively high rate of recurrent defects. However, the minimum two-year follow up demonstrated excellent pain relief and improvement in the ability to perform the activities of daily living, despite the structural failures. The factors affecting tendon healing were the patient's age, the size and extent of the tear, and the presence of fatty degeneration in the rotator cuff muscle.

Keyword

Shoulder; Rotator cuff tear; Arthroscopic repair; Repair integrity; Retear

MeSH Terms

Activities of Daily Living
Adult
Aged
*Arthroscopy
Female
Humans
Magnetic Resonance Imaging
Male
Middle Aged
Muscle Strength
Pain Measurement
Range of Motion, Articular
Recurrence
Rotator Cuff/*injuries/pathology/*surgery
Shoulder Joint/pathology/physiopathology
Treatment Outcome

Cited by  2 articles

Effectiveness of Ultrasound in Evaluation of Fatty Infiltration in Rotator Cuff Muscles
Bong-Kyung Park, Seok-Ha Hong, Woong-Kyo Jeong
Clin Orthop Surg. 2020;12(1):76-85.    doi: 10.4055/cios.2020.12.1.76.

Rotator Cuff Repair in Patients over 75 Years of Age: Clinical Outcome and Repair Integrity
Jung Gwan Park, Nam Su Cho, Jong Hoon Song, Jong Hun Baek, Ho Yeon Jeong, Yong Girl Rhee
Clin Orthop Surg. 2016;8(4):420-427.    doi: 10.4055/cios.2016.8.4.420.


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