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Background: Varus and valgus knee stress radiographs provide valuable information in the pre- and postoperative evaluation of joint laxity in patients with multiligament knee injuries (MLKIs). Purpose: To review the literature for described techniques of quantifying laxity on coronal stress radiographs of the knee and identify the most reliable method. Study Design: Cohort study (diagnosis); Level of evidence, 3. Methods: A thorough literature search using the MEDLINE and Embase databases identified 4 studies with distinct methods for objectively measuring laxity on varus and valgus stress radiographs: Heesterbeek et al (2008), Jacobsen (1976), LaPrade et al (2004), and Sawant et al (2004). To compare these methods, 200 coronal plane stress radiographs from 50 patients with MLKIs were retrospectively reviewed from an MLKI database at a single institution. The amount of varus and valgus laxity on each radiograph was measured independently by 4 reviewers using each method. Intraclass correlation coefficients (ICCs) with 95% CIs were calculated to assess the interobserver reliability of each method overall and the varus and valgus measurements individually. Results: For all 4 methods, the overall interobserver reliability was considered at least moderate. The method by Heesterbeek et al proved to have the highest interrater reliability in all domains-overall (ICC, 0.87 [95% CI, 0.85-0.90]), valgus (ICC, 0.83 [95% CI, 0.78-0.88]), and varus (ICC, 0.87 [95% CI, 0.83-0.90])-demonstrating good to excellent reliability both overall and in varus measurements and showing good reliability in valgus measurements. The method by Sawant et al demonstrated good reliability in valgus measurements. All other measures demonstrated moderate reliability. Conclusion: Available methods for measuring knee joint laxity on varus and valgus knee stress radiographs in patients with MLKIs demonstrated moderate to good interobserver reliability. The method described by Heesterbeek et al proved to have the highest reliability overall as well as in measurements on varus and valgus views individually.
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UNLABELLED: Using FRAX®, this study aimed at estimating 10-years probability of osteoporosis (OP)-related fractures and identifies those in need of OP treatment among primary care attendees in Saudi Arabia. Of those aged ≥ 60 years, 14.4 and 18.4 % scored probabilities for major and hip fractures respectively suggesting OP treatment. Predictors for receiving OP screening included the presence of multiple clinical risk factors, occurrence of fragility fractures and physicians recommendation. PURPOSE: This study aimed at estimating the 10-years probability of osteoporosis (OP)-related fractures and identifying those in need of OP treatment among Saudi adults attending primary care centers (PHCs) in Al Hassa, Saudi Arabia, using FRAX® calculator and to determine factors possibly influence receiving of OP screening among them. SUBJECTS AND METHODS: A total of 1,251 Saudi aged ≥ 40 years, of both genders, were recruited from four urban and three rural randomly selected PHCs. All were subjected to anthropometric measurements followed by a personal interview with structured questionnaire to asses OP clinical risk factors (CRFs) and possible correlates for receiving OP screening. Ten-year probabilities for major osteoporotic and hip fractures were calculated using the Lebanese version of FRAX® calculator. RESULTS: Of participants aged ≥ 60 years, 14.4 and 18.4 % were identified with probability scores for major osteoporotic and hip fractures respectively, suggesting OP treatment. Out of sampled population, 16.1 % received OP screening. The presence of ≥two OP CRFs (odds ratio OR = 4.45), being aware of OP (OR = 2.89), physician recommendation of OP screening (OR = 2.01), and history of fragility fracture (OR = 1.92) were all possible positive predictors for receiving OP screening. CONCLUSION: A sizable portion of the sampled older Saudis especially those aged ≥ 60 years are at high risk for OP-related fractures indicative to receive OP treatment. Occurrence of fragility fractures, multiplicity of CRFs and physician's recommendations are significant positive predictors to receive OP screening among them.
