Background: Extensor muscle strengthening exercises with counterforce bands (EX) is a conventional conservative treatment for lateral epicondylitis (LE) of the elbow. In addition, polydeoxyribonucleotide (PDRN) or extracorporeal shockwave therapy (ESWT) has been recently used for tennis elbow.Methods: Sixty-three patients with chronic LE participated in this study and randomly allocated in three groups (G1: EX, G2: EX+PDRN injection, and G3: EX+ESWT). All of the three groups were taught to perform EX at the first out-patient department (OPD) visit. Group 2 was injected with 3 mL PDRN (5.625 mg/3 mL), while group 3 received ESWT at the first OPD visit. Visual analog scale pain score, Mayo elbow performance score (MEPS), and ultrasonographic examination were checked before, 6 weeks, and 12 weeks after the treatments.Results: Overall functional scores and ultrasonographic findings in all three groups improved after treatment. The mean MEPS in group 2 improved more than groups 1 and 3 at 6 weeks (G1, 56.9>62.4; G2, 54.3>65.0; G3, 55.7>62.6), and more than group 1 at 12 weeks (G1, 56.9>67.9; G2, 54.3>73.6). The mean depth of the common extensor tendon depth (CETD) on ultrasonography in group 2 increased more than groups 1 and 3 at 6 and 12 weeks (6 weeks: G1, 0.385>0.386; G2, 0.332>0.392; G3, 0.334>0.357; 12 weeks: G1, 0.385>0.409; G2, 0.332>0.438; G3, 0.334>0.405 [cm]).Conclusions: PDRN injections combined with EX exhibited a greater improvement in mean MEPS and mean CETD compared to EX only or EX combined with ESWT for LE within the 12 weeks follow-up.
We aimed to investigate the preoperative history, clinical manifestations, imaging findings, and postoperative clinical outcomes for patients with surgically confirmed synovial fistula around the ankle joint. 19 consecutive patients who were confirmed to have synovial fistula in the surgical field were enrolled in this study. Medical records of all patients in terms of preoperative details, operative findings, and postoperative outcomes at 1 year after the surgery were retrieved. As a diagnostic modality, the normal saline test or MRI was used. Intraoperatively, the synovial fistula was repaired with the capsuloligamentous repair or additional periosteal augmentation. All patients had a history of ankle sprain prior to symptoms and showed positive results in the saline load test. One patient had recurred symptom after the surgery, so needed a revisional periosteal augmentation. At 1 year follow-up period, the average Foot ankle outcome score was 87.65 and no surgery-related complication was detected. Synovial fistula of the ankle joint needs to be taken into consideration as a possible complication in patients with ankle sprain history and recurrent joint swelling. The saline load test would be useful for its diagnosis, and treatment should be focused on the complete closure of capsular opening along with restoration of its surrounding pathologic conditions.
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