Guang-Ru Cao

Dr. Guang-Ru Cao

orcid

Research Focus & Metrics

Academic Career Length

8Years (2019-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
23 December 2019 in Journal of Orthopaedic Surgery and Research
Verified
Journal Article
Open access
PDF file
WKweijun kong
weijun kong
ZXZhijun Xin
Zhijun Xin
QDQian Du
Qian Du
GCGuang-Ru Cao
Guang-Ru Cao
WLwenbo liao
wenbo liao
Background: ACDF is the standard procedure for treatment of cervical spondylotic myelopathy (CSM), but a long-term follow-up has been revealed some associated complications of swallowing discomfort, displacement of the fusion device, and accelerated degeneration of the adjacent segment. Objective: To evaluate the clinical outcomes of anterior percutaneous full-endoscopic transcorporeal decompression of the spinal cord (APFETDSC) for single-segment CSM and to analyze the clinical efficacy, surgical characteristics, and complication prevention. Methods: A total of 32 patients who underwent APFETDSC for single-segment CSM from Aug. 2015 to Apr. 2017 were reviewed. Operating time, time of walking out of bed postoperation, length of hospitalization, complications, neck pain visual analog scale (VAS), and Japanese Orthopaedic Association Score (JOA) were evaluated. Measurement of intervertebral height (HI) of surgical segments on cervical neutral X-ray, Harrison’s method was used to measure cervical spine angle (CSA). Results: The operation time was 103.3 ± 12.95 min, time of walking out of bed after surgery was 19.81 ± 4.603 h, the length of postoperative hospital stay was 57.48 ± 19.48 h. The postoperative neck pain VAS and JOA were significantly improved compared with preoperation(p < 0.001). The postoperative HI was statistical significance decreased compared with preoperation(p < 0.001), but the HI reduction was less than 0.5 mm, without adverse clinical symptoms. The postoperative CSA was significantly improved compared with preoperative(p < 0.001). The excellent and good rate was 87.5%, and the JOA improvement rate was 75.52 ± 11.11%. There was no cervical instability, vertebral fracture, wound infection, and other complications. Conclusions: APFETDSC is a safe and effective minimally invasive technique with small auxiliary injuries for single-segment CSM while avoiding the sequelae of ACDF. Its short-term clinical efficacy was good and no significant effect on cervical stability.

9 April 2019 in BMC Musculoskeletal Disorders
Verified
Journal Article
Open access
PDF file
PWPeng Wang
Peng Wang
WLwenbo liao
wenbo liao
GCGuang-Ru Cao
Guang-Ru Cao
YJYongyan Jiang
Yongyan Jiang
Gorham-Stout syndrome (GSS) with spinal involvement is extremely rare, and bilateral chylothorax as a complication is usually fatal. In our case, pleural effusion appeared in the left hemithorax after ligating the right thoracic duct. A 14-year-old patient presented with GSS affecting the thoracic spine with bilateral chylothorax. The case was successfully managed using combined conservative and surgical treatments. At the 2-year follow-up visit, the amount of pleural fluid was reduced, the patient’s respiratory function had improved, and the deformity on the thoracic spine had gradually stabilized. GSS is a rare disorder of the musculoskeletal system that responds poorly to therapies and exhibits very high morbidity and mortality. Chylothorax is a common complication when lesions involve the thoracic spine, and physicians should be vigilant for possible serious pulmonary complications.

1 May 2019 in Medicine
Verified
Journal Article
Open access
JRJingcheng Rao
Jingcheng Rao
YRYuhang Rao
Yuhang Rao
CWChong Wang
Chong Wang
YCYuqiang Cai
Yuqiang Cai
GCGuang-Ru Cao
Guang-Ru Cao
Rationale: Langerhans cell histiocytosis (LCH) involving adult cervical vertebrae is relatively rare clinically. Patient concerns: An 18-year-old male patient exhibited a 1-month history of neck pain, restricted neck mobility, and numbness and weakness of both upper limbs. The patient reported no pain at other sites, exhibited no fever or night sweats, and was unable to recall any recent injury. Diagnoses: On the basis of the radiological features of the lesion and laboratory tests, there was a high possibility that the patient had a tuberculosis lesion. Postoperative GeneXpert and Mycobacterium tuberculosis (MTB) culture results showed MTB negative. Postoperative pathological results showed: (Cervical 4 vertebrae) LCH. Interventions: Our department did an anterior approach operation. The patient was treated with prednisone combined with vincristine after operation. Outcomes: The patient was discharged from the hospital with complete remission of cervical pain and rapid relief of neurological symptoms. Lessons: Computed tomography-guided biopsy of lesion tissue must be performed when a suspected infection occurs in young patients. If possible, the lesion tissue obtained during the operation should be cultured and pathologically examined for early diagnosis.

21 March 2024 in Journal of Orthopaedic Surgery and Research
Verified
Journal Article
Open access
PDF file
XXXiao-Bing Xiang
Xiao-Bing Xiang
KGKai-Yin Gao
Kai-Yin Gao
WZWei-Wei Zhang
Wei-Wei Zhang
CLCheng-Peng Li
Cheng-Peng Li
KFKai-Kai Feng
Kai-Kai Feng
GCGuang-Ru Cao
Guang-Ru Cao
Despite advancements in spinal metastasis surgery techniques and the rapid development of multidisciplinary treatment models, we aimed to explore the clinical efficacy of spinal metastasis surgery performed by a combined NOMS decision system-utilizing multidisciplinary team and Revised Tokuhashi scoring system, compared with the Revised Tokuhashi scoring system. Clinical data from 102 patients with spinal metastases who underwent surgery at three affiliated hospitals of Zunyi Medical University from December 2017 to June 2022 were analysed. The patients were randomly assigned to two groups: 52 patients in the treatment group involving the combined NOMS decision system-utilizing multidisciplinary team and Revised Tokuhashi scoring system (i.e., the combined group), and 50 patients in the treatment group involving the Revised Tokuhashi scoring system only (i.e., the revised TSS-only group). Moreover, there were no statistically significant differences in preoperative general data or indicators between the two groups. Intraoperative and postoperative complications, average hospital stay, mortality rate, and follow-up observation indicators, including the visual analogue scale (VAS) score for pain, Eastern Cooperative Oncology Group (ECOG) performance status, Karnofsky Performance Status (KPS) score, negative psychological assessment score (using the Self-Rating Anxiety Scale, [SAS]), and neurological function recovery score (Frankel functional classification) were compared between the two groups. All 102 patients successfully completed surgery and were discharged. The follow-up period ranged from 12 to 24 months, with an average of (13.2 ± 2.4) months. The patients in the combined group experienced fewer complications such as surgical wound infections 3 patients(5.77%), intraoperative massive haemorrhage 2 patients(3.85%), cerebrospinal fluid leakage 2 patients(3.85%), deep vein thrombosis 4 patients(7.69%),and neurological damage 1 patient(1.92%), than patients in the revised TSS-only group (wound infections,11 patients(22%); intraoperative massive haemorrhage, 8 patients(16%);cerebrospinal fluid leakage,5 patients(10%);deep vein thrombosis,13 patients (26%); neurological damage,2 patients (4%). Significant differences were found between the two groups in terms of surgical wound infections, intraoperative massive haemorrhage, and deep vein thrombosis (P < 0.05). The average postoperative hospital stay in the combined group (7.94 ± 0.28 days) was significantly shorter than that in the revised TSS-only group (10.33 ± 0.30 days) (P < 0.05). Long-term follow-up (1 month, 3 months, 6 months, and 1 year postoperatively) revealed better clinical outcomes in the combined group than in the revised TSS-only group in terms of VAS scores, overall KPS%, neurological function status Frankel classification, ECOG performance status, and SAS scores.(P < 0.05). A multidisciplinary team using the NOMS combined with the Revised Tokuhashi scoring system for spinal metastasis surgery showed better clinical efficacy than the sole use of the Revised Tokuhashi scoring system. This personalized, precise, and rational treatment significantly improves patient quality of life, shortens hospital stay, reduces intraoperative and postoperative complications, and lowers mortality rates.

26 April 2025 in Journal of Orthopaedic Surgery and Research
Verified
Journal Article
Open access
PDF file
CLCheng-Peng Li
Cheng-Peng Li
KFKai-Kai Feng
Kai-Kai Feng
XXXiao-Bing Xiang
Xiao-Bing Xiang
KGKai-Yin Gao
Kai-Yin Gao
WZWei-Wei Zhang
Wei-Wei Zhang
GCGuang-Ru Cao
Guang-Ru Cao
To conduct a comparative analysis of the clinical efficacy and quality of life in elderly patients with lumbar degenerative disease (LDD) treated with TLIF (transforaminal lumbar interbody fusion) combined with either unilateral pedicle screw fixation (UPSF) or bilateral pedicle screw fixation (BPSF). A total of 112 patients with single- or double-segment lumbar degenerative disease were divided into two groups. In the unilateral fixation cohort, 32 single-segment patients and 22 double-segment patients underwent TLIF combined with UPSF, whereas in the bilateral fixation cohort, 34 single-segment patients and 24 double-segment patients underwent TLIF combined with BPSF. Data on operative time, intraoperative blood loss, time to postoperative ambulation, length of hospital stay, and perioperative complications were collected and analysed. Pain and functional status were preoperatively evaluated, in addition to being postoperatively evaluated at 1, 6, and 12 months, using the visual analogue scale (VAS), Oswestry Disability Index (ODI), Japanese Orthopaedic Association (JOA) score, and Short Form-36 (SF-36) health survey questionnaire. Imaging follow-up was conducted for 1 year; at the final follow-up, the fusion rate was determined using the Bridwell fusion grading system, and clinical outcomes were assessed by using the modified MacNab criteria. All of the follow-up patients successfully completed the surgeries. There were no significant differences observed in average postoperative ambulation time or hospital stay between the UPSF and BPSF groups for either single- or double-segment patients. However, the UPSF group exhibited less average blood loss and a shorter surgery time (P < 0.05). At 12 months after surgery, there were no statistically significant differences observed in the VAS, ODI, or JOA scores between the UPSF and BPSF groups, although both scores were significantly improved compared with the preoperative scores. There were fewer perioperative complications observed in the UPSF group than in the BPSF group for both single-segment (P = 0.040) and double-segment (P = 0.009) patients. In terms of quality of life, the UPSF group exhibited better long-term physical and mental health outcomes compared with the BPSF group (single-segment PCS: preoperative, P = 0.694; 1 month, P = 0.310; 6 months, P = 0.022; 12 months, P = 0.020; MCS: preoperative, P = 0.849; 1 month, P = 0.655; 6 months, P = 0.022; 12 months, P < 0.001; double-segment PCS: preoperative, p = 0.890; 1 month, P = 0.374; 6 months, P = 0.022; 12 months, P = 0.023; MCS: preoperative, P = 0.447; 1 month, P = 0.419; 6 months, P = 0.023; 12 months, P < 0.001). At the final follow-up, there were no significant differences observed in fusion rates between the groups according to the Bridwell fusion grading system (P > 0.05), with both groups achieving satisfactory fusion rates. The modified MacNab criteria revealed that excellent and good results in each group were > 90%, with no significant differences being observed between the groups (P > 0.05). For the treatment of LDD in elderly patients, both TLIF combined with UPSF and TLIF combined with BPSF can achieve favourable outcomes. However, UPSF demonstrates advantages compared with BPSF, including a shorter surgery time, reduced intraoperative blood loss, and greater postoperative quality of life.

3 February 2026 in Spine
Verified
Journal Article
Open access
QDQian Du
Qian Du
WKweijun kong
weijun kong
YCYonghu Chang Yonghu Chang
Yonghu Chang Yonghu Chang
ZXZhijun Xin
Zhijun Xin
XSXinxin Shao
Xinxin Shao
ZZZhiyu Zhou
Zhiyu Zhou
Study Design.: A retrospective two-center external validation study was conducted at two medical centers, collecting cervical spine MRI data from patients suspected of degenerative cervical myelopathy (DCM) between March 2022 and August 2024, forming a consecutive series with external validation. Objective.: To develop and validate a deep learning model utilizing YOLO11 architecture for automated detection of cervical spinal cord compression on MRI and evaluate its performance against expert annotations. Summary of Background Data.: DCM represents the leading cause of nontraumatic spinal cord injury in adults. While MRI facilitates early detection and provides the foundation for timely intervention, image interpretation remains subjective and dependent on physician experience, resulting in diagnostic variability and challenges in clinical consistency. Materials and Methods.: A YOLO11-based deep learning model was implemented with a binary classification scheme (Normal vs . Compression). Five physicians annotated 1431 sagittal T2-weighted cervical MRI images from 735 patients using standardized protocols, achieving excellent interobserver agreement. The data set comprised training/validation sets (577 patients, 1141 images), an internal test set (64 patients, 115 images), and an external test set (94 patients, 175 images). Five-fold cross-validation assessed model robustness. Standardized preprocessing incorporating contrast enhancement, noise reduction, and normalization was applied. Gradient-weighted Class Activation Mapping enhanced model interpretability. Results.: Five-fold cross-validation yielded consistent performance with mAP50 ranging from 0.917 to 0.970, precision from 0.897 to 0.923, and recall from 0.922 to 0.946. External testing demonstrated statistically superior agreement with expert annotations (mAP50=0.944, 95% CI: 0.934–0.953) compared with mid-level physician annotations (mAP50=0.912, 95% CI: 0.908–0.919), with the difference being statistically significant (95% CI of difference: 0.015–0.043, P <0.05). Conclusion: The YOLO11-based model demonstrated stable two-center performance with close alignment to expert-level clinical standards. The rapid inference, high sensitivity, and integrated visualization system address key challenges related to efficiency and interpretability in clinical AI applications for cervical spinal cord compression assessment.