1
|
Kou YH, Yu YL, Zhang YJ, Han N, Yin XF, Yuan YS, Yu F, Zhang DY, Zhang PX, Jiang BG. Repair of peripheral nerve defects by nerve transposition using small gap bio-sleeve suture with different inner diameters at both ends. Neural Regen Res 2019; 14:706-712. [PMID: 30632512 PMCID: PMC6352590 DOI: 10.4103/1673-5374.247475] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
During peripheral nerve transposition repair, if the diameter difference between transposed nerves is large or multiple distal nerves must be repaired at the same time, traditional epineurial neurorrhaphy has the problem of high tension at the suture site, which may even lead to the failure of nerve suture. We investigated whether a small gap bio-sleeve suture with different inner diameters at both ends can be used to repair a 2-mm tibial nerve defect by proximal transposition of the common peroneal nerve in rats and compared the results with the repair seen after epineurial neurorrhaphy. Three months after surgery, neurological function, nerve regeneration, and recovery of nerve innervation muscle were assessed using the tibial nerve function index, neuroelectrophysiological testing, muscle biomechanics and wet weight measurement, osmic acid staining, and hematoxylin-eosin staining. There was no obvious inflammatory reaction and neuroma formation in the tibial nerve after repair by the small gap bio-sleeve suture with different inner diameters at both ends. The conduction velocity, muscle strength, wet muscle weight, cross-sectional area of muscle fibers, and the number of new myelinated nerve fibers in the bio-sleeve suture group were similar to those in the epineurial neurorrhaphy group. Our findings indicate that small gap bio-sleeve suture with different inner diameters at both ends can achieve surgical suture between nerves of different diameters and promote regeneration and functional recovery of injured peripheral nerves.
Collapse
Affiliation(s)
- Yu-Hui Kou
- Peking University People's Hospital, Beijing, China
| | - You-Lai Yu
- The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu Province, China
| | - Ya-Jun Zhang
- Peking University People's Hospital, Beijing, China
| | - Na Han
- Peking University People's Hospital, Beijing, China
| | | | - Yu-Song Yuan
- Peking University People's Hospital, Beijing, China
| | - Fei Yu
- Peking University People's Hospital, Beijing, China
| | | | | | | |
Collapse
|
2
|
Kou YH, Zhang PX, Wang YH, Chen B, Han N, Xue F, Zhang HB, Yin XF, Jiang BG. Sleeve bridging of the rhesus monkey ulnar nerve with muscular branches of the pronator teres: multiple amplification of axonal regeneration. Neural Regen Res 2015; 10:53-9. [PMID: 25788920 PMCID: PMC4357117 DOI: 10.4103/1673-5374.150706] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/14/2014] [Indexed: 01/09/2023] Open
Abstract
Multiple-bud regeneration, i.e., multiple amplification, has been shown to exist in peripheral nerve regeneration. Multiple buds grow towards the distal nerve stump during proximal nerve fiber regeneration. Our previous studies have verified the limit and validity of multiple amplification of peripheral nerve regeneration using small gap sleeve bridging of small donor nerves to repair large receptor nerves in rodents. The present study sought to observe multiple amplification of myelinated nerve fiber regeneration in the primate peripheral nerve. Rhesus monkey models of distal ulnar nerve defects were established and repaired using muscular branches of the right forearm pronator teres. Proximal muscular branches of the pronator teres were sutured into the distal ulnar nerve using the small gap sleeve bridging method. At 6 months after suture, two-finger flexion and mild wrist flexion were restored in the ulnar-sided injured limbs of rhesus monkey. Neurophysiological examination showed that motor nerve conduction velocity reached 22.63 ± 6.34 m/s on the affected side of rhesus monkey. Osmium tetroxide staining demonstrated that the number of myelinated nerve fibers was 1,657 ± 652 in the branches of pronator teres of donor, and 2,661 ± 843 in the repaired ulnar nerve. The rate of multiple amplification of regenerating myelinated nerve fibers was 1.61. These data showed that when muscular branches of the pronator teres were used to repair ulnar nerve in primates, effective regeneration was observed in regenerating nerve fibers, and functions of the injured ulnar nerve were restored to a certain extent. Moreover, multiple amplification was subsequently detected in ulnar nerve axons.
Collapse
Affiliation(s)
- Yu-Hui Kou
- Department of Trauma and Orthopedics, Peking University People's Hospital, Beijing, China
| | - Pei-Xun Zhang
- Department of Trauma and Orthopedics, Peking University People's Hospital, Beijing, China
| | - Yan-Hua Wang
- Department of Trauma and Orthopedics, Peking University People's Hospital, Beijing, China
| | - Bo Chen
- Department of Trauma and Orthopedics, Peking University People's Hospital, Beijing, China
| | - Na Han
- Department of Trauma and Orthopedics, Peking University People's Hospital, Beijing, China
| | - Feng Xue
- Department of Trauma and Orthopedics, Peking University People's Hospital, Beijing, China
| | - Hong-Bo Zhang
- Department of Trauma and Orthopedics, Peking University People's Hospital, Beijing, China
| | - Xiao-Feng Yin
- Department of Trauma and Orthopedics, Peking University People's Hospital, Beijing, China
| | - Bao-Guo Jiang
- Department of Trauma and Orthopedics, Peking University People's Hospital, Beijing, China
| |
Collapse
|
3
|
Zhang PX, Li-Ya A, Kou YH, Yin XF, Xue F, Han N, Wang TB, Jiang BG. Biological conduit small gap sleeve bridging method for peripheral nerve injury: regeneration law of nerve fibers in the conduit. Neural Regen Res 2015; 10:71-8. [PMID: 25788923 PMCID: PMC4357121 DOI: 10.4103/1673-5374.150709] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/14/2014] [Indexed: 11/04/2022] Open
Abstract
The clinical effects of 2-mm small gap sleeve bridging of the biological conduit to repair peripheral nerve injury are better than in the traditional epineurium suture, so it is possible to replace the epineurium suture in the treatment of peripheral nerve injury. This study sought to identify the regeneration law of nerve fibers in the biological conduit. A nerve regeneration chamber was constructed in models of sciatic nerve injury using 2-mm small gap sleeve bridging of a biodegradable biological conduit. The results showed that the biological conduit had good histocompatibility. Tissue and cell apoptosis in the conduit apparently lessened, and regenerating nerve fibers were common. The degeneration regeneration law of Schwann cells and axons in the conduit was quite different from that in traditional epineurium suture. During the prime period for nerve fiber regeneration (2-8 weeks), the number of Schwann cells and nerve fibers was higher in both proximal and distal ends, and the effects of the small gap sleeve bridging method were better than those of the traditional epineurium suture. The above results provide an objective and reliable theoretical basis for the clinical application of the biological conduit small gap sleeve bridging method to repair peripheral nerve injury.
Collapse
Affiliation(s)
- Pei-Xun Zhang
- Department of Trauma and Orthopedics, Peking University People's Hospital, Beijing, China
| | - A Li-Ya
- Department of Trauma and Orthopedics, Peking University People's Hospital, Beijing, China
| | - Yu-Hui Kou
- Department of Trauma and Orthopedics, Peking University People's Hospital, Beijing, China
| | - Xiao-Feng Yin
- Department of Trauma and Orthopedics, Peking University People's Hospital, Beijing, China
| | - Feng Xue
- Department of Trauma and Orthopedics, Peking University People's Hospital, Beijing, China
| | - Na Han
- Department of Trauma and Orthopedics, Peking University People's Hospital, Beijing, China
| | - Tian-Bing Wang
- Department of Trauma and Orthopedics, Peking University People's Hospital, Beijing, China
| | - Bao-Guo Jiang
- Department of Trauma and Orthopedics, Peking University People's Hospital, Beijing, China
| |
Collapse
|
4
|
Yu Y, Zhang P, Yin X, Han N, Kou Y, Jiang B. Specificity of motor axon regeneration: a comparison of recovery following biodegradable conduit small gap tubulization and epineurial neurorrhaphy. Am J Transl Res 2015; 7:53-65. [PMID: 25755828 PMCID: PMC4346523] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Accepted: 11/25/2014] [Indexed: 06/04/2023]
Abstract
Functional recovery is often unsatisfactory after lesions in the peripheral nervous system despite the strong potential for regeneration and advances in microsurgical techniques. Axonal regeneration in mixed nerve into inappropriate pathways is a major contributing factor to this failure. In this study, the rat femoral nerve model of transection and surgical repair was used to evaluate the specificity of motor axon regeneration as well as functional and morphological recovery using biodegradable conduit small gap tubulization compared to epineurial neurorrhaphy. 12 weeks after nerve repair, the specificity was assessed using the retrograde neurotracers TB and DiI to backlabel motor neurons that regenerate axons into muscle and cutaneous pathways. To evaluate the functional recovery of the quadriceps muscle, the quadriceps muscle forces were examined. The quadriceps muscle and myelinated axons were assessed using electrophysiology and histology. The results showed that the specificity of motor axon regeneration (preferential reinnervation) was significantly higher when the nerve transection was treated by biodegradable conduit small gap tubulization and there was no significant difference between the two suture methods with respect to the functional and morphological recovery. This study demonstrated that the quicker and easier biodegradable conduit small gap tubulization may get more accurate reinnervation than traditional epineurial neurorrhaphy and produced functional and morphological recovery equal to traditional epineurial neurorrhaphy.
Collapse
Affiliation(s)
- Youlai Yu
- Department of Trauma and Orthopedics, Peking University People's Hospital 11th Xizhimen South Street, Beijing, China
| | - Peixun Zhang
- Department of Trauma and Orthopedics, Peking University People's Hospital 11th Xizhimen South Street, Beijing, China
| | - Xiaofeng Yin
- Department of Trauma and Orthopedics, Peking University People's Hospital 11th Xizhimen South Street, Beijing, China
| | - Na Han
- Department of Trauma and Orthopedics, Peking University People's Hospital 11th Xizhimen South Street, Beijing, China
| | - Yuhui Kou
- Department of Trauma and Orthopedics, Peking University People's Hospital 11th Xizhimen South Street, Beijing, China
| | - Baoguo Jiang
- Department of Trauma and Orthopedics, Peking University People's Hospital 11th Xizhimen South Street, Beijing, China
| |
Collapse
|
5
|
Wang Z, Han N, Wang J, Zheng H, Peng J, Kou Y, Xu C, An S, Yin X, Zhang P, Jiang B. Improved peripheral nerve regeneration with sustained release nerve growth factor microspheres in small gap tubulization. Am J Transl Res 2014; 6:413-421. [PMID: 25075258 PMCID: PMC4113503] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Accepted: 06/16/2014] [Indexed: 06/03/2023]
Abstract
OBJECTIVE To evaluate the long-term results of the use of nerve growth factor (NGF)-loaded poly-D, L-lactide-co-glycolide (PLGA) microspheres for improve nerve regeneration with small gap tubulization. METHODS NGF microspheres were prepared by a modified W/O/W emulsion solvent evaporation method. Forty-eight male SD rats were separated into 4 groups and received a chitin conduit to bridge a sciatic nerve injury left a 2 mm gap. Saline (Group A), 20 ng/ml NGF solution (Group B), blank PLGA microspheres (Group C), or 40 ng/ml NGF-loaded microspheres (Group D) was injected in the gap. Each group had two study endpoints, 3 months subgroup and 1 year subgroup. RESULTS The myelinated fiber count at 2 mm distal to the conduit at 1 year was slightly less than at 3 months in all groups (P>0.05). However, the maturity of the myelinated nerves at 1 year was obviously improved. The fiber count, myelin sheath thickness, axon area of NGF microsphere group were significantly higher than the saline groups at 3 months (P=0.05, P<0.05, and P<0.05, respectively). The SFI was significantly improved in NGF microspheres group compared to the saline group and NGF solution group at 1 year (P<0.05, and P<0.05, respectively). CONCLUSIONS The results demonstrated that the release of NGF microspheres in small gap tubulization benefit on peripheral nerve injury facilitated nerve regeneration histologically, especially for the maturity of early regenerative nerve fibers and also had an effect on functional recovery in the long term.
Collapse
Affiliation(s)
- Zhenwei Wang
- Department of Orthopedics and Trauma, Peking University People’s Hospital11th Xizhimen South Street, Beijing, China
| | - Na Han
- Department of Orthopedics and Trauma, Peking University People’s Hospital11th Xizhimen South Street, Beijing, China
| | - Jiancheng Wang
- Department of Pharmaceutics, School of pharmaceutical sciences, Peking UniversityBeijing, China
| | - Hua Zheng
- Department of Pharmaceutics, School of pharmaceutical sciences, Peking UniversityBeijing, China
| | - Jianping Peng
- Department of Orthopedics, Xin Hua Hospital affiliated to Shanghai Jiaotong University School of MedicineShanghai, China
| | - Yuhui Kou
- Department of Orthopedics and Trauma, Peking University People’s Hospital11th Xizhimen South Street, Beijing, China
| | - Chungui Xu
- Department of Orthopedics and Trauma, Peking University People’s Hospital11th Xizhimen South Street, Beijing, China
| | - Shuai An
- Department of Orthopedics and Trauma, Peking University People’s Hospital11th Xizhimen South Street, Beijing, China
| | - Xiaofeng Yin
- Department of Orthopedics and Trauma, Peking University People’s Hospital11th Xizhimen South Street, Beijing, China
| | - Peixun Zhang
- Department of Orthopedics and Trauma, Peking University People’s Hospital11th Xizhimen South Street, Beijing, China
| | - Baoguo Jiang
- Department of Orthopedics and Trauma, Peking University People’s Hospital11th Xizhimen South Street, Beijing, China
| |
Collapse
|