Clinically Meaningful Improvements After Hip Arthroscopy for Femoroacetabular Impingement in Adolescent and Young Adult Patients Regardless of Gender.

BACKGROUND: The objective of this study was to determine if adolescent and young adult patients undergoing hip arthroscopy for symptomatic femoroacetabular impingement (FAI) experience clinically meaningful improvements in functional outcome scores. METHODS: A consecutive series of patients under age 18 who underwent primary hip arthroscopy for symptomatic FAI was identified using our institution's hip registry. Demographics, preoperative radiographic measurements, and preoperative and postoperative patient-reported outcome scores [Hip Outcome Score (HOS), Activity of Daily Living (ADL), and Sports-Specific Subscale (SS), and modified Harris Hip Score (MHHS)] were collected. Percentage of patients achieving minimum clinically important difference (MCID) and patient acceptable symptom state (PASS) were determined using published cutoffs for HOS and MHHS in FAI patients. RESULTS: Forty-three patients met study inclusion criteria, and 37 patients (86%) were available at a minimum follow-up of 2 years. Mean age was 17.0±1.4 years, 70% were female, and 8.1% had an open proximal femoral physis. All competitive high school and college athletes were able to return to sport. Patients experienced significant improvements following hip arthroscopy in HOS-ADL, HOS-SS, and MHHS scores (all P<0.0001). MCID was achieved in 81% of patients (27/34) for HOS-ADL, 97% (33/34) for HOS-SS, and 84% (27/32) for MHHS. PASS was achieved for 76% of patients (26/34) for HOS-ADL, 79% (27/34) for HOS-SS, and 81% (26/32) for MHHS. Lower body mass index but not age or sex was correlated with a greater improvement in MHHS scores (r=0.39; P=0.03). There were 2 minor complications and no revision surgery. CONCLUSIONS: Adolescent and young adult patients experienced statistically significant improved functional outcomes 2 years after hip arthroscopy for FAI. In addition, these outcomes can be achieved with a low complication rate and a high return to preoperative activity. Approximately 80% of patients achieved clinically significant outcomes based on MCID and PASS criteria. Patient improvements in MHHS were equal regardless of age or sex; however, lower preoperative body mass index led to greater postoperative MHHS improvements. LEVEL OF EVIDENCE: Level IV-therapeutic case series.

Patellar Fracture Repair Using FiberWire.

Patellar fractures are injuries caused by the direct impact on the bone or excessive stress on the extensor mechanism. The extensor mechanism is a structure formed by the quadriceps, the patella, and the patellar tendon, as well as ligaments. We present the case of a 53-year-old male who suffered a fall from a ladder after attempting to fix a ceiling light in his home. He went to the emergency department a few times before he was admitted due to his inability to walk secondary to a fracture located at the inferior pole of the left patella. This fracture was fixed with open reduction and internal fixation using drill holes and FiberWire®.

Frykman VIII Fracture Secondary to Falling Onto an Outstretched Hand (FOOSH).

This is the case of a 41-year-old woman who presented with pain in the wrist after a fall from her bicycle, after which she tried to block her fall by outstretching her hand. She sustained a Frykman VIII fracture, with a fracture of the distal radius and ulnar styloid. Her labs were unremarkable, and she had no previous medical history. Her case was an example of a classic fracture due to FOOSH (falling onto an outstretched hand) which can easily be avoided by learning how to break falls properly. The patient's symptoms, diagnosis, treatment, and ways to avoid this injury are presented.

Region-specific alterations in astrocyte and microglia morphology following exposure to blasts in the mouse hippocampus.

Traumatic brain injury (TBI) is a serious public health concern, especially injuries from repetitive insults. The main objective of this study was to immunocytochemically examine morphological alterations in astrocytes and microglia in the hippocampus 48h following a single blast versus multiple blasts in adult C57BL/6 mice. The effects of ketamine and xylazine (KX), two common anesthetic agents used in TBI research, were also evaluated due to the confounding effect of anesthetics on injury outcome. Results showed a significant increase in hypertrophic microglia that was limited to the outer molecular layer of the dentate gyrus, but only in the absence of KX. Although the presence or absence of KX had no effect on astrocytes following a single blast, a significant decrease in astrocytic immunoreactivity was observed in the stratum lacunosum moleculare following multiple blasts in the absence of KX. The morphological changes in astrocytes and microglia reported in this study reveal region-specific differences in the absence of KX that could have significant implications for our interpretation of glial alterations in animal models of injury.