Snapping hip syndrome is a relatively common problem that can be easily managed with conservative treatment. This syndrome can be divided into external, internal and intra-articular types. Internal snapping hip syndrome is the rarest amongst these and its etiology is not well understood. We report a unique case of osteochondroma arising from the anterior inferior iliac spine (AIIS), which caused the internal snapping hip syndrome with hip pain and restriction of activity. This rare case of snapping hip syndrome from the AIIS was treated surgically and the symptoms completely disappeared after excision of the tumor.
Adult ; *Bone Neoplasms ; Female ; *Hip Joint/diagnostic imaging/physiopathology ; Humans ; *Ilium/diagnostic imaging/physiopathology ; *Joint Diseases/etiology/physiopathology ; *Osteochondroma

Adolescent ; Adult ; Female ; Fractures, Bone ; complications ; Humans ; Joint Diseases ; etiology ; physiopathology ; surgery ; Knee Joint ; physiopathology ; Male ; Middle Aged

Anterior disc displacement is a common subtype seen in temporomandibular disorders (TMD) patients. It may cause mandibular movement disorders, such as clicking of joint, intermittent closed lock, limitation of mouth opening, etc. These disorders may affect the life qualities of patients. Anterior disc displacement may also cause mandibular malformations, especially among adolescents, which may affect the growth of condyle, therefore may have a correlation with mandibular retrusion or mandibular deviation when grown up. This paper going to review the influences of anterior disc displacement on oral mandibular function and morphology and their biological mechanisms.
Adolescent ; Humans ; Mandible ; abnormalities ; pathology ; Mandibular Condyle ; growth & development ; Mandibular Diseases ; etiology ; Movement ; Retrognathia ; etiology ; Temporomandibular Joint Disorders ; etiology ; physiopathology

OBJECTIVETo report the results of arthroscopic release to treat subtalar stiffness after calcaneal fractures.

METHODSFrom September 2004 to December 2006, 10 cases of subtalar stiffness were treated. There were 8 male and 2 female cases, with an average age of 36 years old (ranging from 18 to 48). All, but 2 cases, had single subtalar involvement. The routine triple portals (lateral, anterolateral, posterolateral portals) were applied with the patient placed in the lateral decubitus position. The anterior capsule, lateral gap, calcaneofibular ligament, posterior capsule together with the posteromedial corner of the subtalar joint were released step by step under arthroscopic control. Finally, manual release was performed.

RESULTSAll cases were followed-up for 12 to 36 months (mean, 24.5 months). According to the AOFAS hindfoot activity rating scale, 10 cases were rated as Grade III, 2 as Grade II before the surgery. Nine cases were improved to Grade I, 3 to Grade II at the last follow-up after the surgery. AOFAS hindfoot scores were significantly improved from 71.4 before the surgery to 90.6 at the last follow-up (P < 0.01). All cases returned to the previous work at an average of 1.8 months (range, 1 to 3 months) after the surgery.

CONCLUSIONArthroscopic release to treat subtalar stiffness after calcaneal fracture has such advantages as minimally-invasiveness, simplicity and effectiveness.

Adolescent ; Adult ; Arthroscopy ; methods ; Calcaneus ; injuries ; Female ; Follow-Up Studies ; Fractures, Bone ; complications ; Humans ; Joint Diseases ; etiology ; surgery ; Male ; Middle Aged ; Subtalar Joint ; physiopathology ; Treatment Outcome ; Young Adult

PURPOSE: The authors investigated the effect of lumbar facet tropism (FT) on intervertebral disc degeneration (DD), facet joint degeneration (FJD), and segmental translational motion. MATERIALS AND METHODS: Using kinetic MRI (KMRI), lumbar FT, which was defined as a difference in symmetry of more than 7degrees between the orientations of the facet joints, was investigated in 900 functional spinal units (300 subjects) in flexion, neutral, and extension postures. Each segment at L3-L4, L4-L5, and L5-S1 was assessed based on the extent of DD (grade I-V) and FJD (grade 1-4). According to the presence of FT, they were classified into two groups; one with FT and one with facet symmetry. For each group, demographics, DD, FJD and translational segmental motion were compared. RESULTS: The incidence of FT was 34.5% at L3-L4, 35.1% at L4-L5, and 35.2% at L5-S1. Age and gender did not show any significant relationship with FT. Additionally, no correlation was observed between DD and FT. FT, however, wasfound to be associated with a higher incidence of highly degenerated facet joints at L4-L5 when compared to patients without FT (p < 0.01). Finally, FT was not observed to have any effects upon translational segmental motion. CONCLUSION: No significant correlation was observed between lumbar FT and DD or translational segmental motion. However, FT was shown to be associated significantly with the presence of high grades of FJD at L4-L5. This suggests that at active sites of segmental motion, FT may predispose to the development of facet joint degeneration.
Adolescent ; Adult ; Age Factors ; Aged ; Aged, 80 and over ; Female ; Humans ; Intervertebral Disk Displacement/*etiology/pathology ; Joint Diseases/*complications/pathology ; Lumbar Vertebrae/*pathology ; Magnetic Resonance Imaging ; Male ; Middle Aged ; Sex Factors ; Zygapophyseal Joint/*pathology/physiopathology