BACKGROUND:There are controversies about the efficacy of al-arthroscopic rotator cuff repairversus mini-open for the treatment of rotator cuff injury.
OBJECTIVE:To evaluate the efficacy of al-arthroscopic rotator cuff repairversusmini-open for the treatment of rotator cuff injury by conducting a meta-analysis.
METHODS:A computer-based online search was conducted in PubMed, Embase, Cochrane Library and CBM databases from January 1966 to November 2015 to screen the relevant articles usingthe key words of“rotator cuff, arthroscopy, mini-open”. Meta-analysis was performed using Revman5.3 software.
RESULTS AND CONCLUSION:A total of 11 studies, including 6randomized controled trialsand 5 cohort studies,were selected. The meta-analysis results showed that there were no significant differences in the function and strength of the shoulder joint, pain, motor range, recurrence of rotator cuff avulsion, the incidence rate of ankylosis between both two groups (P> 0.05). These results suggest that the efficacy of al-arthroscopic rotator cuff repair does not differ from those of mini-open for the treatment of rotator cuff injury. However arthroscopic rotator cuff repair induces less soft tissue injury and early incision pain, but better function recovery.

[Objective]To analyze the clinical effect of the unstable pertrochanteric femoral fracture treated with anatomical plate.[Method]To prospectively compare anatomical plate with dynamic hip screw(DHS) in terms of treatment of the unstable pertrochanteric femoral fracture in elderly.Fifty-eight elderly patients with unstable pertrochanteric femoral fracture who were treated from June 2003 to May 2007 and followed up for 9-24 months were randomized into two treatment groups,ie,anatomical plate internal fixation(group I) and dynamic hip screw internal fixation(group II).Of all,32 patients were treated with anatomical plate internal fixation and 26 with DHS internal fixation.The treatment groups were comparable with regard to all demographic and injury variables.[Result]Patients treated with anatomical plate internal fixation had shorter operative times,fewer blood loss and blood transfusion,and higher Harris scores,there were significant differences in the two groups.The incidence rate of early postoperative complication was 9.38% in group I and 11.54% in group Ⅱ.The incidence rate of late postoperative complication was 9.38% in group Ⅰ and 30.78% in group Ⅱ.There were significant differences in late postoperative complication and no significant differences in early postoperative complication between the two groups.[Conclusion]The unstable pertrochanteric femoral fracture treated with anatomical plate could achieve excellent clinical results.

Objective To explore the feasibility of building tissue engineered cartilage by bone marrow stromal cells and pbotografting modified copolymers of 3-hydroxybutymte and 3-hydroxyvalerate.Methods Sheep BMSCs were seeded in three-dimensional photografting modified PHBV scaffoids.Twenty-four hours later.composites were cultured with ehondrogenically inductive medium(DMEM)containing TGF-B(10 ng/m1),IGF-1(150 ng/m1)and 20% fetal bovine serum.Three weeks later,the constructs were evaluated by scanning electron microscopy(SEM)and light microscopy with alcian blue,safrine 0 and type Ⅱ collage immunohistochemical staining.GAG contents of constructs were determined by DMB(1,9-dimethylmethylene blue)binding assay at weekly intervals up to 3 weeks.The composites were implanted subcutaneously in sheep abedoml and were evaluated macroscopically and bistologically at 4 weeks postoperatively.Results SEM photograph showed.after one week culture,cell morphology changed from fibroblast-like elongated spindle to the flat rounded like chondrocytes,and the extra cellular matrix also increased obviousl~.Furthmore,with the culture time extension,this change were more evident.HE staining showed that cells filled all the inter-connected pores in the constructs.And more cells were observed in the outer layer of the constructs.ECM(extraeellular matrix)Was strongly positive by Aleian blue,Safrine O staining and type Ⅱ collage immunohistechemical staining.DMB binding assay revealed that the induced BMSCs GAG secretion(1306.7±192.3)wag significantly higher than BMSCs(205.0±26.2)(P<0.001),but it was significantly lower than passage 2 ehondrocytes(1969.2±235.3)(P<0.001).Saltine O and type Ⅱ collage immunohistochemical staining were positive in constructs implanted subcutaneously.Conclusion Tissue engineered cartilage could be obtained using BMSCs and photografting modified PHBV,but there are still gaps physiologically between the constructs and the nature cartilage.

Objective:To compare the postoperative tunnel enlargement and clinical outcomes of anterior cruciate ligament (ACL) reconstruction using the all-inside technique with the traditional outside-in graft introduction technique.Methods:A retrospective analysis was conducted on 47 patients with ACL injuries who were admitted to the First Hospital of the University of Science and Technology of China between December 2021 and July 2022. The patients were categorized into two groups based on the surgical approach used for ACL reconstruction. There were 25 cases in the all-inside group, 18 males and 7 females, aged 27.72±7.33 years, 17 cases on the left side and 8 cases on the right side; 22 cases in the traditional group, 11 males and 11 females, aged 27.82±7.12 years, 11 cases on the left side and 11 cases on the right side. Clinical parameters including the length of hospital stay, surgical duration, pain levels assessed via the visual analogue scale (VAS), Lysholm score, International Knee Documentation Committee (IKDC) score, and Tegner score were recorded and compared between the two groups. Additionally, femoral and tibial tunnel enlargement was evaluated using postoperative CT scans conducted one year after surgery.Results:All patients were followed up for 15.64±2.04 months (range, 12-21 months). The mean operation time was 178.60±42.90 min in the all-inside group and 133.60±28.77 min in the traditional group, indicating a statistically significant longer operation time in the all-inside group ( P<0.05). On postoperative days 1 and 15, the VAS scores were lower in the all-inside group (7.08±1.29 and 5.56±1.33 points) compared to the conventional group (7.96±1.29 and 6.32±1.13 points), with a statistically significant difference ( P<0.05). However, the differences in VAS scores between the two groups at postoperative months 1, 6, and 12 were not statistically significant ( P>0.05). The preoperative Lysholm, IKDC, and Tegner scores in the all-inside group and the conventional group were 34.00±18.63, 36.24±15.01, 1.20±1.12 points and 36.18±13.64, 38.23±14.94, 1.55±1.14 points, respectively, and at 6 months after surgery, respectively were 72.60±13.95, 74.12±12.03, 3.56±1.05 points, and 68.41±10.80, 66.59±17.93, 3.23±1.15 points, and at 12 months postoperatively were 92.32±5.23, 81.40±7.24, 5.28±1.62 points and 91.27±6.32, 82.18±7.26, 4.96±1.25 points. Both groups improved at 6 months postoperatively compared with preoperatively ( P<0.05), and further improved at 12 months postoperatively compared with 6 months postoperatively ( P<0.05), but the differences in each functional score between the two groups were not statistically significant at all time points ( P>0.05). At 1 year postoperatively, the values of femoral and tibial tunnel enlargement in the all-inside group (1.78±1.03 mm, 1.18±0.97 mm) were smaller than those in the conventional group (2.30±1.33 mm, 1.83±1.00 mm), and the differences were statistically significant ( P<0.05). The difference between the femoral side tunnel enlargement and tibial side enlargement in the traditional group was not statistically significant ( P>0.05), while the femoral side enlargement in the all-inside group was significantly larger than the tibial side ( P<0.05). The difference in Lysholm, IKDC and Tegner scores between grade 0 and grade 1 tunnel enlargement on the femoral side and tibial side was not statistically significant ( P>0.05). Conclusion:The short-term clinical outcomes following ACL reconstruction using the all-inside technique versus the traditional tunnel technique were comparable. However, early postoperative pain was less severe with the all-inside technique, and tunnel enlargement was smaller. The degree of bone tunnel enlargement did not significantly impact early clinical outcomes.

OBJECTIVESTo assess surgical treatment of lumbar spinal stenosis associated with unstable degenerative spondylolisthesis.

METHODSIn 86 patients with lumbar spinal stenosis associated with unstable degenerative spondylolisthesis. (30 men and 56 women, aged from 30 to 77 years), 63 patients complained of lower back pain with both lower extremity pain, 10 patients pain in one leg, and 13 patients only lower back pain. Seventy-two of these patients complained of intermittent claudication, with a walking distance ranging from 10 to 1 000 m. Thirty-two patients had some changes in sensation, motion and reflexes of the foot. According to White' critera, all patients showed dynamic instability of the lesion. Meyerding criteria showed degree 1 in 79 patients, and degree 2 in 7. CT scan was made in 56 patients, MRI in 24 and MRM in 6 before operation. Myelography was performed in 61 patients, and CTM in 6. Stenosis and spondylolisthesis located between L(4) and L(5) in 49 patients, between L(3) and L(4) in 6, between L(5) and S(1) in 25, between L(3) and L(4) and between L(4) and L(5) in 2, and from L(3) to S(1) in 4. The patients with pathological spondylolisthesis were excluded. Lateral recess stenosis of one leg was observed in 10 patients, lateral recess of both legs in 22, and central canal stenosis in 54, of whom 12 patients were associated with protrusion of the lumbar disc. Decompression and autograft with iliac bone and various internal fixation were performed in all patients.

RESULTSThe patients were followed up from 8 months to 13 years, longer than 1 year (average 5.6 years) in 81 patients. According to Amundsen et al, excellent results were obtained in 78 patients, good in 5, and fair in 3. Spondylolisthesis was completely reduced in 70 patients of degree 1 (89.9%), and in 6 patients of degree 2 (85.7%). No patient showed slippage aggravated. 74 patients gained bone graft fusion within 3 months and 10 patients within 6 months. Two patients showed pseudoarthrosis during the follow-up. Complications included internal fixation breakage in 1 patient, and delayed infection in 1.

CONCLUSIONSComplete decompression and bone graft fusion are the key to treatment. Decompression and internal fixation improve the symptoms of patients with lumbar spinal stenosis associated with spondylolisthesis. Transpedicle instrumentation can reduce spondylolisthesis and maintain the physical curve of the lumbar.

Adult ; Aged ; Decompression, Surgical ; methods ; Female ; Humans ; Lumbar Vertebrae ; Male ; Middle Aged ; Retrospective Studies ; Spinal Stenosis ; complications ; surgery ; Spondylolisthesis ; surgery

OBJECTIVESTo investigate the diagnosis and treatment cervical disc calcification in children.

METHODS13 children with cervical disc calcification were analysed retrospectively. Cervical pain was observed after influenza in 5 children, suddenly cervical pain in 3, sudden wryneck in 3 cases. Two children with this disease were accidentally found after injury.

RESULTS14 calcifications of cervical disks were found in 13 children. Clinical symptoms disappeared after symptomatic management. Calcification disappeared in 5 months.

CONCLUSIONSCervical disc calcification in children is a kind of benign self-limited disease. Correst understanding of pathophysiologic course of this disease helps to avoid unnecessary surgery.

Adolescent ; Calcinosis ; diagnosis ; therapy ; Cervical Vertebrae ; pathology ; Child ; Child Health Services ; Female ; Humans ; Male

Objective:To compare the short-term effect of the arthroscopic reconstruction of anterior cruciate ligament (ACL) by femoral tunnel positioning through the tendon incision (TI) technique and anteromedial (AM) technique.Methods:Between December 2015 and March 2017, 176 patients with ACL injuries underwent arthroscopic ACL reconstruction at the First Affiliated Hospital of USTC were analyzed. According to the method of localization of femoral tunnel, they were divided into two groups: TI group (localization of femoral tunnel by TI for reconstruction of ACL) and AM group (localization of femoral tunnel by AM for reconstruction of ACL). There were 87 patients in the TI group (63 males and 24 females) with an age of 32.8±9.4 years (range, 19-51 years) and a body mass index (BMI) of 24.8±6.3 kg/m 2 (range, 18.1-31.7 kg/m 2), including 9 obese patients (BMI>28 kg/m 2). There were 89 patients in the AM group (59 males and 30 females) with an age of 36.7±13.0 years (range, 17-56 years) and a BMI of 25.7±5.8 kg/m 2 (range, 18.9-31.6 kg/m 2), including 11 obese patients. To evaluate whether the drill was in contact with the articular surface of the medial condyle of the femur, whether the anterior angle of the medial meniscus was damaged, the sagittal and coronal angles of the femoral tunnel and the total length of the femoral tunnel. The anterior drawer test, Lachmann test, pivot shift test, knee flexion angle (KFA), Lysholm score, International Knee Documentation Committee (IKDC) score and the incidence of postoperative complications were compared between the two groups. At the same time, the time of taking out tendon, operation time, hospital stay and recovery time were compared between two groups of obese people. Results:In the TI group, the guide pin could reach all areas of the medial wall of the lateral femoral condyle from the inferior cartilage edge to the top of the intercondylar fossa, the drill bit had no contact with the medial femoral condyle (MFC), and the anterior angle of the medial meniscus was not damaged. In AM Group, 3 cases of MFC and 1 case of anterior horn of medial meniscus were injured in order to get the best position of femoral tunnel. The angle of femoral tunnel in sagittal plane (50.2°±3.2°) and coronal plane (46.1°±5.8°) in experimental group was notably larger than that in control group (45.6°±5.4°, 38.3°±4.7°), the difference was statistically significant ( P<0.05). However, there was no significant difference in the length of femoral tunnel between the two groups (38.2±3.2 mm and 37.7±2.5 mm, P>0.05). All patients were followed up for an average of 8.3±2.1 (range, 3-12) months. The positive rates of anterior drawer test, Lachmann test and pivot shift test were not significantly different between the two groups at 3, 6, 9 and 12 months after operation ( P>0.05). The KFA, Lysholm and IKDC scores in both groups were significantly increased after operation ( P<0.05), but there was no significant difference of above indexes between the two groups ( P>0.05). The overall complication rate in AM group (14.6%, 13/89) was significantly higher than that in TI group (6.9%, 6/87), the difference was statistically significant ( P<0.05). Additionally, the tendon harvesting (15.0±0.2 min vs. 26.0±0.2 min, P<0.05) and operation time (2.0±0.3 h vs. 3.0±0.4 h, P<0.05) were significantly shortened among obese patients in experimental group compared with those in control group. Conclusion:The TI technique demonstrates comparable effectiveness to the AM technique in ACL reconstruction through femoral tunnel positioning, with the added advantage of safer femoral tunnel localization. This approach minimizes the risk of iatrogenic injuries to the articular cartilage of the medial condyle of the femur and the anterior horn of the medial meniscus. Furthermore, the TI technique reduces tendon removal time, particularly beneficial for obese patients.