RESUMO
Background One of the most often damaged ligaments in the knee is the anterior cruciate ligament (ACL). With the increased occurrence of ACL injuries, there is a greater need for clinical diagnostics to rule in or rule out a suspected rupture. The Lever Test, a novel clinical tool for diagnosing ACL rupture, has been presented, with preliminary trials indicating encouraging results. Methods This is a prospective, blinded, diagnostic accuracy study. The aim of this study was to evaluate the accuracy of the Lever Test and other common clinical tests (Anterior Drawer Test, Lachman Test, Pivot Shift Test) for diagnosing ACL injuries. The study enrolled 23 patients who had knee pain, instability, and locking symptoms. The clinical tests were performed on the patients in supine position before, during, and after anesthesia. The results of the clinical tests were compared with MRI findings to determine the sensitivity of each test. Results The patients consisted of 17 men and six women, with a mean age of 30.4±9.95 years. 18 patients had complete tears, four had partial tears, and one had intact ACL damage. 10 (44%) complained in the right knee, 13 (56%) in the left knee, and two (9%) had a generalized ligamentous laxity. 21 (91%) complained of giving away, 22 (96%) complained of knee pain, and 10 (43%) complained of locking of the knee. On the ipsilateral leg examination, pre-operative positivity of Lever Sign was 44%, Lachman 83%, and Anterior Drawer 67%. After being given anesthesia, test positivity rates were 44% for Lever Sign and 56% for Pivot Shift. Post-operative positivity of Lever Sign was 17%, Lachman 39%, and Anterior Drawer 35%. Mcnemar test p values were significant for the difference of positivity anterior drawer test (p=0.002) and were not significant on Lever Sign (p=0.7) and Lachman tests (p=0.13). Correlation analysis showed a weak but not statistically significant interrater reliability between MRI findings and Lever Sign (p=0.846) (Kappa= 0.2). On the contralateral leg examination, the pre-operative positivity of Lever Sign was 9%, Lachman 17%, and Anterior Drawer 22% Conclusion The study suggests that the Lever Test has lower accuracy than other clinical tests when comparing the results of tests with MRI findings. As a result, Lever Test should be used in combination with other clinical tests to accurately rule out suspected ACL injuries.
RESUMO
Aims: Achieving purchase in native glenoid bone is essential for the stability of the glenoid baseplate when bone graft is used to address bone loss in both primary and revision shoulder arthroplasty procedures. The aim of this study is to assess the required depth of the baseplate peg in native bone when bone graft is used to result in satisfactory integration. Patients and methods: The CT scans of patients who underwent either primary or revision arthroplasty procedures with bone graft using the SMR Axioma Trabecular Titanium (TT) Metal Backed glenoid system were assessed. We measured the depth of the glenoid peg in native glenoid bone. Measurements were taken by two authors separately. Results: The scans of 53 patients (mean age 68 years) with a minimum follow-up of two years were reviewed. Implants included 12 anatomical and 41 reverse geometry prostheses. There were 17 primaries and 36 revisions: hemiarthroplasties (20) total (14) and reverse (2) implants. Bone grafts were from humeral head (15), iliac crest (34) and allograft (4). The mean depths were 8.8 mm (first assessor) and 9.10 mm (second assessor). The glenoid peg violated the glenoid vault in 32 patients and this did not adversely affect the outcome. There were three failures of implants all of which were aseptic failures and had peg penetration of less than 6 mm. Conclusions: The mean depth of glenoid peg in native bone was 9 mm (variation between 0.2 and 0.52 mm at 95% confidence interval). Aseptic loosening was seen with peg penetration less than 6 mm in native bone. Glenoid vault violation was not associated with loosening.
RESUMO
Laparoscopic appendectomy, cholecystectomy, or anti-reflux procedures are conventionally performed with the use of one and often two 10/12-mm ports. While needlescopic or micropuncture laparoscopic procedures reduce postoperative pain, they invariably involve the use of one 10/12-mm port and the instruments applied have their ergo-dynamic shortcomings. Between September 2002 and March 2003, we have attempted an "all 5-mm ports" approach in 49 laparoscopic procedures, which included 18 of 59 laparoscopic cholecystectomies (31%), 26 diagnostic laparoscopies for suspected appendicitis (of which we proceeded to a laparoscopic appendectomy in 17 patients), and in the last 5 of 9 laparoscopic Nissen fundoplications. Conversion of one of the 5-mm ports to a 10-mm port was required in 5 of the 18 (28%) laparoscopic cholecystectomies and in 6 of the 17 (35%) laparoscopic appendectomies to facilitate organ retrieval in patients with large gallstones (>5 mm in diameter) and in obese patients with fatty mesoappendix. There were no conversions to open surgery. No significant differences in the operating time between the laparoscopic procedures performed by the all 5-mm ports approach or the conventional approach were observed. No intraoperative or postoperative complications occurred in this series. The "all 5-mm ports" approach to laparoscopic cholecystectomy and appendectomy in selected patients and to laparoscopic fundoplication appears feasible and safe. A randomised comparison between this approach and the conventional laparoscopic approach to elective cholecystectomy and fundoplication in which two of the ports employed are of the 10-mm diameter is warranted.
