Reliability of clinical findings and magnetic resonance imaging for the diagnosis of chondromalacia patellae.

Background: This diagnostic study was performed to determine the correlation between anterior knee pain and chondromalacia patellae and to define the reliability of magnetic resonance imaging for the diagnosis of chondromalacia patellae.

Methods: Fifty-six young adults (median age, 19.5 years) with anterior knee pain had magnetic resonance imaging of the knee followed by arthroscopy.

Postoperative MDCT of tibial plateau fractures.

Objective: The purposes of this retrospective study were to elaborate our experience in postoperative MDCT of tibial plateau fractures, to establish the frequency of these fractures and the indications for MDCT, and to assess the common findings and their clinical importance.

Materials And Methods: A total of 782 knee injuries were imaged with MDCT at a level 1 trauma center over 86 months. A total of 592 knees had a tibial plateau fracture; 381 of these fractures were managed surgically, and postoperative MDCT was performed on 36 of these knees (9%).

Long-term outcome after surgical treatment of unresolved Osgood-Schlatter disease in young men.

Background: Surgical treatment of Osgood-Schlatter disease is occasionally warranted, but its long-term prognosis remains poorly investigated. We studied the rate of occurrence of surgical treatment of unresolved Osgood-Schlatter disease as well as the clinical course, radiographic characteristics, and long-term outcomes after that treatment in a large population of military recruits.

Methods: During a thirteen-year period, 178 consecutive recruits underwent surgery for unresolved Osgood-Schlatter disease, and 107 of them (117 knees) who met the inclusion criteria participated in a follow-up examination.

Measurement of spinal canal narrowing, interpedicular widening, and vertebral compression in spinal burst fractures: plain radiographs versus multidetector computed tomography.

Objective: To assess the reliability of measurements of spinal canal narrowing, vertebral body compression, and interpedicular widening in burst fractures in radiography compared with multidetector computed tomography (MDCT).

Materials And Methods: Patients who had confirmed acute vertebral burst fractures over an interval of 34 months underwent both MDCT and radiography. Measurements of spinal canal narrowing, vertebral body compression, and interpedicular widening from MDCT and radiography were compared.

Bone stress injuries are common in female military trainees: a preliminary study.

Although bone stress injuries are common in male military trainees, it is not known how common they are in female trainees. It also is unclear whether asymptomatic bone stress injuries heal if intensive training is continued. We prospectively followed 10 female trainees of a military Reserve Officer Course.

Femoral avulsion of the medial patellofemoral ligament after primary traumatic patellar dislocation predicts subsequent instability in men: a mean 7-year nonoperative follow-up study.

Background: The clinical relevance of medial patellofemoral ligament (MPFL) injury location in primary patellar dislocation has not been studied.

Hypothesis: Prognosis after primary traumatic patellar dislocation may vary by MPFL injury location.

Study Design: Cohort study; Level of evidence, 3.

Treatment with and without initial stabilizing surgery for primary traumatic patellar dislocation. A prospective randomized study.

Background: There is no consensus about the management of acute primary traumatic patellar dislocation in young physically active adults. The objective of this study was to compare the clinical outcomes after treatment with and without initial stabilizing surgery for primary traumatic patellar dislocation in young adults.

Methods: Forty young adults, thirty-seven men and three women with a median age of twenty years (range, nineteen to twenty-two years), who had an acute primary traumatic patellar dislocation were randomly allocated to be treated with initial surgical stabilization (eighteen patients, with each receiving one of two types of initial stabilizing procedures) or to be managed with an orthosis (twenty-two patients, including four who had osteochondral fragments removed arthroscopically).

One screening magnetic resonance imaging sequence in evaluation of chondral and meniscal lesions of the knee - a pilot study.

This prospective study aimed to evaluate if chondral and meniscal lesions in symptomatic knees of osteoarthritis patients can be reliably identified using only one sagittal dual-echo MRI (Magnetic Resonance Imaging) sequence. MRI was performed on 13 patients after knee arthroscopy due to knee pain and clinically suspected osteoarthritis using a 1.5-Tesla scanner with knee coil and a sagittal dual-echo turbo spin-echo PD (Proton Density)- and T2-weighted sequence.

Risk factors for bone stress injuries: a follow-up study of 102,515 person-years.

Purpose: The aim of the present study was to assess the risk factors for magnetic resonance imaging (MRI)-detected bone stress injuries in the pelvis, hip, thigh, and knee in a large cohort of Finnish conscripts during a follow-up of 102,515 person-years.

Methods: An epidemiologic prospective cohort study of 152,095 conscripts, including 2345 (1.5%) females, was conducted.

Comparison of bioabsorbable pins and nails in the fixation of adult osteochondritis dissecans fragments of the knee: an outcome of 30 knees.

Background: The optimal device for the fixation of osteochondritis dissecans fragments of the knee remains controversial and lacks long-term results.

Purpose: To review a group of young adults with osteochondritis dissecans of the knee treated with arthroscopic fixation of the fragment using bioabsorbable pins and nails and to examine the medium-term outcome of the fixation via magnetic resonance imaging and clinical evaluation.

Study Design: Cohort study; Level of evidence, 3.

Bone stress injuries of the ankle and foot: an 86-month magnetic resonance imaging-based study of physically active young adults.

Background: No comprehensive studies of bone stress injuries in the ankle and foot based on magnetic resonance imaging findings have been published.

Purpose: Using magnetic resonance imaging findings to assess incidence, location, and type of bone stress injuries of the ankle and foot in military conscripts with ankle and/or foot pain.

Study Design: Case series; Level of evidence, 4.

Sensitivity of routine 1.0-Tesla magnetic resonance imaging versus arthroscopy as gold standard in fresh traumatic chondral lesions of the knee in young adults.

Purpose: The purpose of this study was to evaluate the sensitivity, specificity, and accuracy of routine 1.0-Tesla magnetic resonance imaging (MRI) versus arthroscopy in detecting fresh traumatic chondral lesions of the knee.

Methods: Over a period of 6 years, 578 consecutive military personnel underwent MRI before arthroscopy of the knee.

Stress injuries of the calcaneus detected with magnetic resonance imaging in military recruits.

Background: Calcaneal stress injuries are fairly common overuse injuries in military recruits and athletes. We assessed the anatomic distribution, nature, and healing of calcaneal stress injuries in a group of military recruits.

Methods: Military recruits who underwent magnetic resonance imaging for the evaluation of exercise-induced ankle and/or heel pain were identified from the medical archives.

Bilateral femoral fatigue fracture: an unusual fracture in a military recruit.

We present a case report of a military recruit who had bilateral fatigue fractures of the distal femur. Possible predisposing factors and the long-term outcome of these unusual stress fractures also are presented. A 19-year-old recruit experienced knee pain 2 weeks after starting his military service.

Displaced femoral neck fatigue fractures in military recruits.

Background: Displaced fatigue fractures of the femoral neck are uncommon, but they can lead to substantial patient morbidity. This study was performed to examine the incidence, long-term consequences, radiographic findings, risk factors, and complications associated with this fracture.

Methods: Between 1975 and 1994, twenty-one military recruits sustained a displaced fatigue fracture of the femoral neck.

Outcomes of stress fractures of the talus.

Background: Stress fractures of the talus are rare, and only a few small studies have been published. In the absence of follow-up studies, the outcomes of these injuries are unknown.

Hypothesis: Traumatic fractures of the talus frequently heal poorly, and stress fracture healing might remain inadequate.

MRI of menisci repaired with bioabsorbable arrows.

Objective: To analyze with conventional magnetic resonance imaging (MRI) the signal appearance of menisci repaired with bioabsorbable arrows.

Design And Patients: Forty-four patients with 47 meniscal tears treated with bioabsorbable arrows underwent follow-up conventional MRI examination. The time interval between the surgery and MRI varied from 5 to 67 months (mean 26 months).

Fatigue bone injuries causing anterior lower leg pain.

Unlabelled: Shin splints, or stress-related anterior lower leg pain, seem to arise from numerous causes, including stress fractures. We retrospectively reviewed 154 consecutive military patients who had magnetic resonance imaging during a 5-year period for stress-related anterior lower leg pain. Using magnetic resonance imaging, 143 bone stress injuries were diagnosed in 86 of the 154 (56%) patients.

Bone stress injuries of the talus in military recruits.

The purpose of the present study was to assess the incidence, anatomic distribution, and nature of fatigue bone stress injuries of the talus in military recruits based on magnetic resonance imaging (MRI). Military recruits referred to MRI examination due to exercise-induced ankle and/or foot pain were identified from the MRI archives. MR images of cases with bone stress injury findings in the talus were retrospectively re-evaluated concerning the anatomic location and type of the bone stress injury.

The incidence and distribution of burst fractures.

This study was conducted to assess occurrence and distribution of burst fractures as well as common accident mechanisms and the associated neurologic deficit. Using picture archiving and communications system, all emergency multidetector computed tomography studies over 34 months were retrieved and evaluated for burst fractures by two radiologists by consensus. Initial neurological findings were retrieved from patients' medical records.

Bone stress injuries causing exercise-induced knee pain.

Background: No comprehensive studies of bone stress injuries in the knee based on magnetic resonance imaging findings have been published.

Purpose: Assess the incidence, location, nature, and patterns of bone stress injuries in the knee in military conscripts with exercise-induced knee pain.

Study Design: Case series; Level of evidence, 4.

Effect of ultrasound therapy on bone healing of lateral malleolar fractures of the ankle joint fixed with bioabsorbable screws.

Background: We investigated the effect of low-intensity ultrasound on bone healing in bioabsorbable self-reinforced poly-L: -lactic acid (SR-PLLA) screw-fixed lateral malleolar fractures. The study design was prospective, randomized, double-blind, and placebo-controlled.

Methods: A total of 22 fractures were fixed with one SR-PLLA screw.

Bone stress injuries in asymptomatic elite recruits: a clinical and magnetic resonance imaging study.

Background: The occurrence and clinical significance of asymptomatic bone stress injuries is unknown.

Hypothesis: To evaluate by clinical and magnetic resonance imaging follow-up the occurrence of asymptomatic bone stress injuries, their clinical significance, and whether they all progress to stress fractures in subjects undergoing intensive physical training.

Study Design: Cohort study (prognosis); Level of evidence, 1.

Diagnostic value of pelvic radiography in the initial trauma series in blunt trauma.

The purpose of the study was to evaluate the diagnostic value of pelvic radiography in the initial trauma series when compared to multidetector CT (MDCT) findings in serious blunt trauma. Inclusion criteria were blunt trauma and pelvic radiography in the initial trauma series, followed by a whole-body MDCT. A total of 1386 patients (874 male, 512 female, age 16-91 years, mean 41 years) met the inclusion criteria.