Measurement of lumbar lordosis. Evaluation of intraobserver, interobserver, and technique variability.

STUDY DESIGN: Sixty radiographs were measured on two separate occasions by three physicians using four different techniques to evaluate the reliability and reproducibility of the measurement of lumbar lordosis. OBJECTIVE: To evaluate clinical methods of measuring lumbar lordosis, determining intraobserver and interobserver reliability. SUMMARY OF BACKGROUND DATA: Several different methods are used to measure lumbar lordosis. The reliability and reproducibility of these has not been well studied. METHODS: Sixty lateral full spine radiographs were obtained, labeled, and the lumbar lordosis measured independently by three practitioners who routinely perform these measurements. Four measurement techniques were used. These included measurements from the inferior endplate of T12 to the superior endplate of S1; the superior endplate of L1 to the superior endplate of S1; the inferior endplate of T12 to the inferior endplate of L5; and the superior endplate of L1 to the inferior endplate of L5. The measurements then were repeated after relabeling. RESULTS: Intraobserver reliability coefficients ranged from 0.83 to 0.92, indicating excellent reproducibility. Ninety-two percent of repeat measures were within 10 degrees. High overall and pairwise agreement among the three observers also was present; the interobserver reliability coefficients ranged from 0.81 to 0.92. CONCLUSIONS: The measurement of lumbar lordosis is reproducible and reliable if the technique is specified and one accepts 10 degrees as acceptable variation. Factors that affect the reproducibility of measurement include end vertebra selection (especially with transitional segments) and vertebral endplate architecture.

A prospective evaluation of orthopedic patients evacuated from Operations Desert Shield and Desert Storm: the Walter Reed experience.

A prospective review of all orthopedic casualties received from the southwest Asia theater of operations during Operations Desert Shield and Desert Storm was carried out at Walter Reed Army Medical Center. An injury analysis of the 181 orthopedic patients revealed 143 total fractures in 69 patients, with the remaining patients sustaining soft tissue injuries from trauma, overuse, or pre-existing conditions. Seventy percent of the fractures were open, of which 23% were treated with external fixators and 41% eventually underwent an operative stabilization procedure. An analysis of the distribution of injuries is given as well as the incidence of amputations, nerve injuries, and arterial injuries. Early multidisciplinary involvement in the care of these casualties proved to be greatly beneficial.