Objective:To examine the feasibility and clinical effect of all-inside endoscopic procedure through two portals combined with double-hemisection Achilles tendon lengthening for Achilles tendon contracture.Methods:This is a retrospective case series study. From February 2021 to February 2023, the clinical data of 24 patients (30 feet) with Achilles tendon contracture treated with all-inside endoscopic procedure through two portals combined with double-hemisection Achilles tendon lengthening were analyzed retrospectively. There were 10 males and 14 females, aged (32.8±16.1) years (range: 9 to 62 years). There were 8 cases of left side only, 10 cases of right side only and 6 cases of bilateral. There were 14 cases (16 feet) of foot varus, 4 cases (6 feet) of foot valgus, and 6 cases (8 feet) without deformity. All patients underwent all-inside endoscopic procedure through two portals combined with double-hemisection Achilles tendon lengthening. The surgical effects were evaluated using the maximum dorsal extension angle of ankle joint in knee extension position, the visual analogue scale (VAS) of pain, the American Orthopedic Foot and Ankle Society ankle-hindfoot score(AOFAS-AH). Paired sample t test was used to compare the scores before and after operation.Results:All patients successfully completed the operation, and the operation time of Achilles tendon lengthening was (22.0±5.7)minutes (range: 15 to 35 minutes) and the intraoperative blood loss was (6.5±2.7)ml (range: 2 to 15 ml). All patients primarily healing without any complications such as sural nerve injury, Achilles tendon rupture, important blood vessel injury, and obvious decrease of lift heel strength of achilles tendon. All 24 patients were followed up for (17.2±4.5) months (range: 12 to 28 months). One patient suffered from lift heel′s weakness in one foot after operation, and recovered after repeated lift heel functional exercises. The ankle dorsiflexion function of two patients with calf triceps spasm were not improved after operation, and it was obviously improved after botulinum toxin injection. At the last follow-up, the maximum dorsal extension angle of ankle joint in knee extension position increased from -9.2°±7.6°(range:-25° to 5°) preoperatively to 14.5°±7.0°(range:0° to 28°)( t=24.83, P<0.01); the VAS score was reduced from (4.5±1.7) points (range:1 to 8 points) preoperatively to (1.5±0.9) points (range:0 to 3 points) ( t=9.53, P<0.01), the AOFAS-AH was increased from (60.5±11.4)points (range:38 to 85 points) to (90.8±5.4) points (range:80-100 points)( t=14.21, P<0.01). Conclusions:All-inside endoscopic procedure through two portals combined with double-hemisection Achilles tendon lengthening for Achilles tendon contracture not only provides Achilles tendon lengthening, but also avoids complications such as Achilles tendon rupture and sural nerve injury. It is an effective method for the treatment of Achilles tendon contracture.

Objective:To examine the feasibility and clinical effect of all-inside endoscopic procedure through two portals combined with double-hemisection Achilles tendon lengthening for Achilles tendon contracture.Methods:This is a retrospective case series study. From February 2021 to February 2023, the clinical data of 24 patients (30 feet) with Achilles tendon contracture treated with all-inside endoscopic procedure through two portals combined with double-hemisection Achilles tendon lengthening were analyzed retrospectively. There were 10 males and 14 females, aged (32.8±16.1) years (range: 9 to 62 years). There were 8 cases of left side only, 10 cases of right side only and 6 cases of bilateral. There were 14 cases (16 feet) of foot varus, 4 cases (6 feet) of foot valgus, and 6 cases (8 feet) without deformity. All patients underwent all-inside endoscopic procedure through two portals combined with double-hemisection Achilles tendon lengthening. The surgical effects were evaluated using the maximum dorsal extension angle of ankle joint in knee extension position, the visual analogue scale (VAS) of pain, the American Orthopedic Foot and Ankle Society ankle-hindfoot score(AOFAS-AH). Paired sample t test was used to compare the scores before and after operation.Results:All patients successfully completed the operation, and the operation time of Achilles tendon lengthening was (22.0±5.7)minutes (range: 15 to 35 minutes) and the intraoperative blood loss was (6.5±2.7)ml (range: 2 to 15 ml). All patients primarily healing without any complications such as sural nerve injury, Achilles tendon rupture, important blood vessel injury, and obvious decrease of lift heel strength of achilles tendon. All 24 patients were followed up for (17.2±4.5) months (range: 12 to 28 months). One patient suffered from lift heel′s weakness in one foot after operation, and recovered after repeated lift heel functional exercises. The ankle dorsiflexion function of two patients with calf triceps spasm were not improved after operation, and it was obviously improved after botulinum toxin injection. At the last follow-up, the maximum dorsal extension angle of ankle joint in knee extension position increased from -9.2°±7.6°(range:-25° to 5°) preoperatively to 14.5°±7.0°(range:0° to 28°)( t=24.83, P<0.01); the VAS score was reduced from (4.5±1.7) points (range:1 to 8 points) preoperatively to (1.5±0.9) points (range:0 to 3 points) ( t=9.53, P<0.01), the AOFAS-AH was increased from (60.5±11.4)points (range:38 to 85 points) to (90.8±5.4) points (range:80-100 points)( t=14.21, P<0.01). Conclusions:All-inside endoscopic procedure through two portals combined with double-hemisection Achilles tendon lengthening for Achilles tendon contracture not only provides Achilles tendon lengthening, but also avoids complications such as Achilles tendon rupture and sural nerve injury. It is an effective method for the treatment of Achilles tendon contracture.

Objective:To observe the multimodal imaging features of acute macular neuroretinopathy (AMN) associated with COVID-19.Methods:A retrospective case study. A total of 52 eyes of 26 patients of AMN associated with COVID-19 diagnosed in Handan Eye Hospital from December 8 to 20, 2022 were included in the study. There were 8 males and 18 females, with the mean age of (33.8±8.1) years. All the patients were bilateral. The time from diagnosis of COVID-19 to the onset of vision loss was 3 to 6 days. All patients underwent the examinations of best corrected visual acuity (BCVA), fundus color photography, infrared fundus photography (IR), fundus autofluorescence (AF), and optical coherence tomography (OCT). Fluorescein fundus angiography (FFA) combined with indoxine green angiography (ICGA) were performed in 12 eyes, and visual field were performed in 18 eyes. Multimodal image features of the affected eye were retrospectively analyzed.Results:The BCVA of the affected eye was 0.25 to 1.0. Round or mottled grayish-white lesions in the macular area were seen in all affected eyes. IR examination showed irregular map-like weak reflex in macular region. AF examination showed speckled fluorescence enhancement in lesion related areas in 3 eyes. FFA combined with ICGA showed weak fluorescence in the macular region in 8 eyes. OCT examination showed patchy strong reflection in the outer plexus layer (OPL) and outer nuclear layer (ONL) of macular area in all affected eyes, and partial absence of outer membrane and ellipsoid band. The en-face OCT showed petal-like intense refleciton between OPL and ONL. Eighteen eyes underwent visual field, and 15 eyes had central dark spots.Conclusion:The characteristic manifestations of AMN associated with COVID-19 are speckled or round-like grayish-white lesions in the macular area, weak reflexes in IR, enhanced OPL and ONL reflexes in OCT, and petal-like intense refleciton changes between OPL and ONL can be seen in en-face OCT.

Objective:To explore the strategies for reduction of irreducible intertrochanteric fractures according to our self-designed new classifications.Methods:A retrospectively study was conducted to analyze the data of 124 patients with irreducible intertrochanteric fracture who had been admitted to Department of Minimally Invasive Orthopaedics, Zhengzhou Orthopaedics Hospital from January 2019 to December 2021. There were 56 males and 68 females with a mean age of (76.8±13.2) years. According to the displacement pattern of the proximal head-neck fragment of the fracture, the irreducible intertrochanteric fractures of the femur were classified into 3 types. In type 1 (rotational type) of 65 cases, there were 24 cases of subtype 1.1 (the lesser trochanter attached to the distal fracture fragment), 8 cases of subtype 1.2 (the lesser trochanter attached to the proximal fracture fragment), and 33 cases of subtype 1.3 (the lesser trochanter floating). In type 2 (locked type) of 18 cases, there were 13 cases of subtype 2.1 (lesser trochanter floating), no case of subtype 2.2 (the lesser trochanter attached to the proximal fracture fragment), and 5 cases of subtype 2.3 (the lesser trochanter attached to the distal fracture fragment). In type 3 (reverse trochanter type) there were 41 cases. Under the guidance of our new classification, the patients were treated by fixation with intramedullary nails after reduction with corresponding techniques (like prying, clamping, pulling, and temporary fixation with Kirschner wires). Operation time, intraoperative blood loss, fracture reduction quality and Harris hip score at the last follow-up were recorded.Results:The operation time was (53.0±20.7) min and blood loss (132.1±81.3) mL in this cohort. According to the criteria proposed by Chang and Kim et al., the quality of fracture reduction was evaluated as excellent in 101 cases, as good in 17 cases, as fair in 4 cases, and as poor in 2 cases, resulting in an excellent and good rate of 95.2% (118/124). All the 124 patients were followed up for an average of (12.4±3.7) months. First-stage fracture union was achieved in 120 patients, and fracture union was achieved in 2 patients of type 3 with breakage of the main nail only after replacement of the intramedullary nail. The mean healing time for the 122 patients was (5.1±1.4) months. In addition, hemiarthroplasty was performed in 2 patients of type 1.3 whose femoral head had been cut by a head nail. Postoperatively, urinary tract infection occurred in 5 cases but responded to appropriate symptomatic treatment. The Harris hip score was (94.2±5.4) points at the last follow-up, and 103 cases were excellent, 17 cases good, and 4 cases poor, giving an excellent and good rate of 96.8% (120/124).Conclusion:It is easy to understand and master the new classification of irreducible intertrochanteric fractures based on the displacement of the proximal head and neck bone which can directly and effectively guide the intraoperative reduction, leading to satisfactory reduction and fixation.

Objective:To investigate the functional outcomes of posterior arthroscopic subtalar arthrodesis (PASTA) for adult patients presenting with symptomatic talocalcaneal coalition.Methods:The study was a retrospective case-series research.The data of 17 adult patients (17 feet) with symptomatic talocalcaneal coalitions,treated with PASTA from March 2018 to February 2022 in Xuzhou Central Hospital were collected.This procedure involved 10 males and 7 females,aged (42.4±7.5) years(range:31 to 58 years).There were 9 cases on the right side and 7 cases on the left side.According to the Rozansky classification,there were 4 cases of type Ⅰ,7 cases of type Ⅱ, 3 cases of type Ⅲ,3 cases of type Ⅳ.The following items such as wound healing and bony union of the subtalar joint were observed.Clinical assessment was performed using pain visual analogue scale (VAS),American Orthopaedic Foot & Ankle Society (AOFAS) ankle-hindfoot scores and 36-item short form health survey (SF-36) scores.The paired t test was used for data comparison. Results:The follow-up time was (24.8±6.9) months(range:12 to 40 months).There were no complications such as wound infection,deep vein thrombosis,nonunion,or screw breakage.One patient with preoperative spasm,relieved after the second surgical procedure (peroneal brevis tendon lengthening).The union time of the subtalar joint was (8.8±2.2) weeks(range:6 to 12 weeks).At the final follow-up,the VAS decreased from 6.4±1.3 to 1.3±0.9 ( t=14.114, P<0.01), the AOFAS ankle-hindfoot score increased from 49.0±8.1 to 90.0±5.1 ( t=38.782, P<0.01),and the SF-36 score increased from 50.8±9.5 to 91.0±4.9 ( t=20.468, P<0.01). Conclusion:PASTA for adult patients presenting with symptomatic talocalcaneal coalition offers advantages of minimal trauma,fast recovery,and few complications,which is an effective method.

Objective:To investigate the functional outcomes of posterior arthroscopic subtalar arthrodesis (PASTA) for adult patients presenting with symptomatic talocalcaneal coalition.Methods:The study was a retrospective case-series research.The data of 17 adult patients (17 feet) with symptomatic talocalcaneal coalitions,treated with PASTA from March 2018 to February 2022 in Xuzhou Central Hospital were collected.This procedure involved 10 males and 7 females,aged (42.4±7.5) years(range:31 to 58 years).There were 9 cases on the right side and 7 cases on the left side.According to the Rozansky classification,there were 4 cases of type Ⅰ,7 cases of type Ⅱ, 3 cases of type Ⅲ,3 cases of type Ⅳ.The following items such as wound healing and bony union of the subtalar joint were observed.Clinical assessment was performed using pain visual analogue scale (VAS),American Orthopaedic Foot & Ankle Society (AOFAS) ankle-hindfoot scores and 36-item short form health survey (SF-36) scores.The paired t test was used for data comparison. Results:The follow-up time was (24.8±6.9) months(range:12 to 40 months).There were no complications such as wound infection,deep vein thrombosis,nonunion,or screw breakage.One patient with preoperative spasm,relieved after the second surgical procedure (peroneal brevis tendon lengthening).The union time of the subtalar joint was (8.8±2.2) weeks(range:6 to 12 weeks).At the final follow-up,the VAS decreased from 6.4±1.3 to 1.3±0.9 ( t=14.114, P<0.01), the AOFAS ankle-hindfoot score increased from 49.0±8.1 to 90.0±5.1 ( t=38.782, P<0.01),and the SF-36 score increased from 50.8±9.5 to 91.0±4.9 ( t=20.468, P<0.01). Conclusion:PASTA for adult patients presenting with symptomatic talocalcaneal coalition offers advantages of minimal trauma,fast recovery,and few complications,which is an effective method.

Objective:To evaluate the outcomes of endoscopic resection of symptomatic talocalcaneal coalitions in adolescents using a posterior approach.Methods:A retrospective case-series study was performed to analyze the data of 15 adolescent patients (16 feet) with symptomatic talocalcaneal coalitions (TCC) who had been treated by posterior arthroscopy from February 2017 to December 2020 at Department of Orthopaedics, Xuzhou Central Hospital. There were 11 boys and 4 girls with an average of 14.3 years (from 11 to 17 years). The left side was affected in 9 and the right side in 5 patients, and both sides were involved in one. Ten patients had a history of ankle sprain. The clinical outcomes were evaluated by visual analogue scale (VAS), American Orthopaedic Foot & Ankle Society (AOFAS) ankle-hindfoot score and 36-item short form health survey (SF-36) postoperatively.Results:The 15 patients were followed up for a mean time of 19.9 months (from 12 to 36 months). At the final follow-up, the VAS significantly decreased from preoperative 6 (6, 7) points to 1 (1, 3) point, the AOFAS ankle-hindfoot score significantly increased from preoperative (54.1±10.4) points to (90.0±16.6) points, and the SF-36 score significantly improved from preoperative (55.5±12.7) points to (88.7±6.5) points ( P<0.05). Follow-ups found such complications as infection, TCC recurrence or osteoarthritis in none of the patients. Conclusion:Endoscopic TCC resection using a posterior approach is an effective surgery for symptomatic TCC in adolescents, showing advantages of limited invasion, fast recovery, a low rate of postoperative complications and precise resection.

Aim To observe the protective effects of probiotics on alcoholic liver injury in rats .Methods Male Wistar rats were randomly divided into the follow-ing three groups: control group , normal diet with nor-mal (5 ×108 CFU· kg -1· d -1) treatment group.Ex-cluding the rats in the normal control group , the other animals were initially received intragastric administra-tion with 56%( V/V) ethanol 5.5~11.0 mL· kg -1 · day -1 for 8 weeks.Then the rats’ faeces were collect-ed, and the liver and the small intestine were obtained for pathologic and ultrastructural observation .Serum ALT, AST and ALP was measured by method of bio-chemistry .Serum DAO and D-LA was measured by en-zyme linked immunosorbent assay .The expression of FOXO4 in small intestine was detected by immunohis-tochemistry .The intestinal flora genome DNA was ex-tracted from faeces and the sequence of 16 S rDNA was analyzed by high-throughput sequencing technologies . Results Hepatic steatosis was obviously improved in probiotics treatment groups compared with ethanol-trea-ted group , and the ultrastructural such as mitochondri-al and rough endoplasmic reticulum pathological chan-ges was significantly alleviated . The ultrastructural changes in intestinal were better in probiotics treatment group than in the ethanol-treated group .And ethanol-induced rats ’ serum ALT, AST, ALP, D-LA and DAO levels showed a significant reduction in the probi-otics treatment groups compared with the ethanol-trea-ted group ( P<0.05 ) .The FOXO4 expression was in-creased obviously in the probiotics treatment groups compared with the ethanol-treated group ( P <0.05 ) . And the intestinal flora diversity was impacted after feeding alcohol , and probiotics had a certain regulative action in helping the intestinal flora back to normal state; At phylum level , the Firmicutes quantity was lower and the Bacteroidetes quantity was higher in eth-anol-treated group than those in the control group ( P<0.05 ) , and the conditions were improved after supple-menting probiotics .At genus level , the percent of ge-nus abundance was similar to normal control group in the probiotics treatment groups compared with the etha-nol-treated group .Conclusion Probiotics can relieve liver injury induced by alcohol in rats , and the mecha-nism may be related to the modulation of probiotics on the intestinal flora distribution and intestinal barrier .