[Objective]To investigate the efficacy of total hip arthroplasty(THA)on the treatment of traumatic arthritis that caused by internal fixation failures of intertrochanteric fractures.[Methods]During January 2009 and March 2016,35 cases of trau?matic arthritis(male:18 cases;female17 cases;49 ~ 86 years old,with an average age of 68.5 years)caused by internal fixation failures or malunion of intertrochanteric fractures,were undergo THA. Among 35 cases,13 cases were performed with the proximal femoral fixation stems,10 cases were with distal fixation stems,and 12 cases were with extended stems.[Results]With 3~65 months follow-up,the hip joint HSS score was elevated from 44.1(31 ~ 65)preoperative to 82.5(58 ~ 94)postoperative without obvious loosening. No postoperative deep infectionwas found. The femoral stems in 2 cases were found to sink 5 mm and 10 mm,respectively. No obvious prosthesis loosening was found. Taken together ,the satisfaction rate of THA on the joint function of traumatic arthritis was 91.4%.[Conclusion]Total hip arthroplasty is recommended as an effective approach for treating traumatic arthritis caused by internal fixation failures of intertrochanteric fractures. Distal fixed prosthesis was recommended due to bone sclerosis or defects of proximal femur. Coupled with emphasis on reconstruction of the greater trochanter ,good therapeutic effects could be achieved.

Objective:To compare the application effectiveness of conventional rehabilitation combined with thoracic spine mobility exercises and conventional rehabilitation in postoperative rehabilitation of patients with rotator cuff injury.Methods:A retrospective cohort study was conducted to analyze the clinical data of 204 patients with rotator cuff injury admitted to First Affiliated Hospital of Jinan University from February 2019 to February 2022, including 88 males and 116 females; aged 18-87 years [(54.1±11.8)years]. Initial unilateral arthroscopic rotator cuff repair was performed on all the patients. A total of 98 patients received a conventional rehabilitation plan (conventional rehabilitation group), and 106 patients received additional thoracic spine mobility exercises as well as conventional rehabilitation (additional exercise rehabilitation group). The visual analog scale (VAS), Constant shoulder joint score, University of California at Los Angeles (UCLA) shoulder joint score, and shoulder range of motion (forward flexion, abduction, and external rotation) before surgery and at 1, 3, and 6 months after surgery were compared between the two groups. The occurrence of complications after rehabilitation was observed.Results:All the patients were followed up for 6-18 months [(8.4±3.5)months]. The VAS score, Constant shoulder joint score, UCLA shoulder joint score, and shoulder joint range of motion of both groups were improved significantly at 1, 3, and 6 months after surgery compared with those before surgery (all P<0.01). There was no statistically significant difference in VAS score between the two groups before surgery and at 1, 3, and 6 months after surgery respectively (all P>0.05). At 3 and 6 months after surgery, the values of the Constant shoulder joint score of the additional exercise rehabilitation group were (77.7±5.8)points and (88.4±7.7)points respectively, which were higher than those of the conventional rehabilitation group [(73.7±6.6)points and (85.5±4.9)points] (all P<0.01). There was no statistically significant difference in the Constant shoulder joint score between the two groups before and at 1 month after surgery (all P>0.05). At 3 months after surgery, the value of the UCLA shoulder joint score of the additional exercise rehabilitation group was (25.5±3.7)points, significantly higher than that of the conventional rehabilitation group [(21.8±5.6)points] ( P<0.01). There was no statistically significant difference in the UCLA shoulder joint score between the two groups before surgery and at 1 and 6 months after surgery (all P>0.05). At 3 and 6 months after surgery, the forward flexion angles of the additional exercise rehabilitation group were (135.5±12.8)° and (165.1±11.3)° respectively, which were higher than those of the conventional rehabilitation group [(129.3±12.3)° and (151.1±11.2)°]; the abduction angles of the additional exercise rehabilitation group were (102.3±12.9)° and (130.4±15.1)° respectively, which were higher than those of the conventional rehabilitation group [(93.2±11.0)° and (123.5±13.7)°]; the external rotation angles of the additional exercise rehabilitation group were (57.2±13.1)° and (72.3±12.3)°respectively, which were higher than those of the conventional rehabilitation group [(46.4±8.8)° and (67.4±14.1)°] (all P<0.01). There was no statistically significant difference in the forward flexion, abduction and external rotation angles between the two groups before surgery and at 1 month after surgery (all P>0.05). At 6 months after surgery, recurrent rotator cuff tear occurred in 1 patient (1.0%) in the conventional rehabilitation group and in 2 (1.9%) in the additional exercise rehabilitation group; shoulder joint adhesion deveplpoed in 5 patients (5.1%) in the conventional rehabilitation group and in 3 (2.8%) in the additional exercise rehabilitation group. No statistically significant difference was found in the incidence rate of postoperative complications between the two groups (all P>0.05). Conclusion:Compared with the conventional rehabilitation plan, addition of thoracic spine mobility exercise to the rehabilitation after arthroscopic repair surgery in patients with rotator cuff injury can achieve better joint function and range of motion, with no increase in the incidence of complications.