Objective To investigate application value of two vacuum assisted biopsy systems in benign breast lesions and compare the advantages and disadvantages of EnCor and Mammotome system.Methods Vacuum assisted excision was performed on 346 benign breast lesions in 227 patients (EnCor with 103 cases, Mammotome with 124 cases) from November 2012 to May 2013, including 162 cases using EnCor system and 184 cases using Mammotome system.Results Duration of operation in EnCor group was (14.18± 4.21) minutes,in Mammotome group was (18.77 ± 7.06) minutes, and the difference was significant (P ＜ 0.001) .Weight of tissues in Mammotome group was (6.87± 3.43) g, in EnCor group was (8.32± 1.18) g, and the difference was significant (P ＜ 0.001).No significant differences were found in postoperative hematoma (P =0.58), postoperative pain (P =0.35), incidence of residual tumor (P =0.15).Conclusion Compared Mammotome group, EnCor group had significantly shorter duration.But using Mammotome system, the specimens can be observed directly.Mammotome is more suitable for women of childbearing age, it can preserve lactation function.There is no significant difference in complication and residual tumor of two vacuum assisted biopsy system in benign breast lesions.

Femoral neck fracture (FNF) in the elderly patients is currently a major health challenge worldwide, with excessive consumption of medical resources, high incidence of complications as well as suboptimal outcome and prognosis. Hip joint arthroplasty (HJA) has been the mainstream treatment for FNF in the elderly, but the conventional surgical approaches and techniques are still confronted with a series of bottlenecks such as dislocation, limp and limb length discrepancy. In recent years, direct anterior approach (DAA) for HJA (DAA-HJA) has been a major new choice in the field of joint replacement, which achieves improved clinical effectiveness of HJA in the treatment of elderly FNF, due to the fact that DAA approach involves the neuromuscular interface and accords with the idea of soft tissue retention and enhanced recovery after surgery. However, there is still a lack of unified understanding of standard technique and procedure of DAA-HJA in the treatment of elderly FNF. Therefore, relevant experts from the Hip Joint Group of Chinese Orthopedics Association of Chinese Medical Association, Youth Arthrology Group of Orthopedic Committee of PLA, Orthopedic Committee of Chongqing Medical Association, Branch of Orthopedic Surgeons of Chongqing Medical Doctor Association and Sport Medicine Committee of Chongqing Medical Association were organized to formulate the " Chinese expert consensus on the technical standard of direct anterior hip arthroplasty for elderly femoral neck fracture ( version 2023)" based on evidence-based medicine. This consensus mainly proposed 13 recommendations covering indications, surgical plans, prosthesis selections, surgical techniques and processes, and postoperative management of DAA-HJA in elderly patients with FNF, aiming to promote standardized, systematic and patient-specific diagnosis and treatment to improve the functional prognosis of the patients.