Comparison of two different superior capsule reconstruction methods in the treatment of chronic irreparable rotator cuff tears: a biomechanical and histologic study in rabbit models

Fatih Yildiz*, Kerem Bilsel, Anil Pulatkan, Mehmet Kapicioglu, Gokcer Uzer, Tolga Çetindamar, Cavide Sonmez, Ergun Bozdag, Emin Sünbüloglu

*Bu çalışma için yazışmadan sorumlu yazar

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18 Atıf (Scopus)

Özet

Background: In the treatment of irreparable rotary cuff (RC) tears, the superior capsule of the shoulder is reconstructed using tensor fascia lata (TFL) or several allografts to prevent progressive joint degeneration. This study compared the healing qualities of acellular human dermal graft (HDG) and the TFL autograft in superior capsule reconstruction (SCR) from biomechanical and histologic perspectives. Methods: Chronic retracted RC tear models were created bilaterally in 9 rabbits, and 7 rabbits with intact RC were used as a control group. SCR was performed 8 weeks after the tear using HDG in right shoulders and TFL in left shoulders. At 12 weeks after SCR, 2 shoulders from each experimental group were investigated for histologic healing, and 7 samples from the experimental and control groups were biomechanically tested. Results: Complete healing was observed macroscopically in the glenoid and humeral sides of both groups. No difference was observed in the enthesis maturation scores between the experimental groups. Collagen fiber density was higher and the orientation was better in TFL group. Inflammatory cell infiltration was not seen in the TFL group, but inflammatory cell infiltration was pronounced in the HDG group. The mean pullout strengths of the TFL group, HDG group, and intact RC group were 139.7 ± 40.5 N, 123.9 ± 47.9 N, and 105.1 ± 11.8 N (P =.187), respectively. The mean stiffness values (P =.711), yield forces (P =.404), and displacements (P =.135) were also statistically not different between the groups. Conclusion: In SCR, the healing qualities of HDG and TFL were similar in rabbit models.

Orijinal dilİngilizce
Sayfa (başlangıç-bitiş)530-538
Sayfa sayısı9
DergiJournal of Shoulder and Elbow Surgery
Hacim28
Basın numarası3
DOI'lar
Yayın durumuYayınlandı - Mar 2019

Bibliyografik not

Publisher Copyright:
© 2018 Journal of Shoulder and Elbow Surgery Board of Trustees

Finansman

This study was supported financially by Bezmialem Vakif University, Scientific Research Projects Office.

FinansörlerFinansör numarası
Bezmialem Vakıf Üniversitesi

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