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Hong CK, Kuan FC, Hsu KL, Chen Y, Chuang HC, Chiang CH, Su WR. Does using high-tensile strength tape improve the fixation strength in tendon graft fixation with needleless suture wrapping techniques compared to a suture? J Orthop Surg (Hong Kong) 2021; 28:2309499020971865. [PMID: 33225808 DOI: 10.1177/2309499020971865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
PURPOSE To compare the biomechanical properties of a high-tensile strength suture and high-tensile strength tape in tendon graft fixation using two needleless suture wrapping techniques, the modified Prusik knot and modified rolling hitch. METHODS Two needleless suture wrapping techniques, the modified rolling hitch (MR) and modified Prusik knot (MP), were utilized. Meanwhile, two kinds of suture materials, a No. 2 braided nonabsorbable high-strength suture (S) and a 1.3 mm high-tensile strength tape (T), were used. A total of 40 porcine tendons were used, which were randomly divided into four groups. Each group was assigned to one of the following groups: MRS, MRT, MPS, and MPT. Each specimen was pretensioned to 100 N for three cycles, cyclically loaded from 50 to 200 N for 200 cycles, and finally loaded to failure. RESULTS The MRT group (34.1 ± 3.5%) had a significantly higher value compared with the MRS (29.7 ± 2.3%), MPS (27.1 ± 3.6%) and MPT (29.5 ± 4.0%) groups in term of elongation after cyclic loadings (p = 0.002). In terms of ultimate failure load, there were no significant differences in the MRS (401 ± 27 N), MRT (380 ± 27 N), MPS (398 ± 44 N) and MPT (406 ± 49 N) values (p = 0.539). All specimens failed due to suture breakage at the knots. CONCLUSION Compared with the high-tensile strength suture, using the high-tensile strength tape lead to greater elongation after cyclic loading when the modified rolling hitch was used. No differences in terms of elongation after cyclic loading and load to failure were found between the high-tensile strength suture and tape using the modified Prusik knot.
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Affiliation(s)
- Chih-Kai Hong
- Department of Orthopaedic Surgery, 38026National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Fa-Chuan Kuan
- Department of Orthopaedic Surgery, 38026National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Department of Biomedical Engineering, 38026National Cheng Kung University, Tainan, Taiwan
| | - Kai-Lan Hsu
- Department of Orthopaedic Surgery, 38026National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Department of Biomedical Engineering, 38026National Cheng Kung University, Tainan, Taiwan
| | - Yueh Chen
- Department of Orthopaedic Surgery, 71587Sin Lau Hospital, Tainan, Taiwan
| | - Hao-Chun Chuang
- Department of Orthopaedic Surgery, 38026National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Chen-Hao Chiang
- Department of Biomedical Engineering, 38026National Cheng Kung University, Tainan, Taiwan.,Department of Orthopaedics, 36597Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chiayi, Taiwan
| | - Wei-Ren Su
- Department of Orthopaedic Surgery, 38026National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Skeleton Materials and Bio-compatibility Core Lab, Research Center of Clinical Medicine, 38026National Cheng Kung University Hospital, Tainan, Taiwan.,Musculoskeletal Research Center, Innovation Headquarter, 38026National Cheng Kung University, Tainan, Taiwan
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