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

Child, Preschool ; Female ; Hereditary Sensory and Autonomic Neuropathies ; complications ; Hip Dislocation ; complications ; diagnostic imaging ; physiopathology ; surgery ; Hip Joint ; diagnostic imaging ; Humans ; Tomography, X-Ray Computed

Adult ; Asymptomatic Diseases ; China ; Chondromatosis, Synovial ; diagnostic imaging ; pathology ; physiopathology ; surgery ; Hip Joint ; diagnostic imaging ; pathology ; physiopathology ; surgery ; Hospitals ; Humans ; Male ; Tomography, X-Ray Computed

OBJECTIVETo evaluate the clinical and radiographic effects of total hip arthroplasty (THA) in the treatment of bony ankylosis of hips.

METHODSFrom January 2003 to August 2009, 20 patients (30 hips) with bony ankylosis of hips were treated with THA. There were 12 males and 8 females, with an average age of 36 years old. After operation, the follow-up results were evaluated with clinical and radiographic criteria. The clinical follow-up results were evaluated with Harris score, satisfaction of pain relief, limb length discrepancy, ROM of hip and the strength of hip abductor. The X-ray imaging follow-up results were evaluated with acetabula and periprosthetic osteolysis, prosthesis loosening, radiolucent and heterotopic ossification.

RESULTSThe average following-up was 4 years. The mean preoperative Harris score was (40.75 +/- 6.52) as opposed to postoperative Harris score of (86.40 +/- 5.42). Total pain relief was 65% and partial pain relief was 35% around the affected hips. The recovery of abductors strength was satisfactory in 13 cases, with limp symptoms was relieved obviously, and limb shortening decreased to less than 0.5 cm. The postoperative ROM of hip was significantly improved compared with the preoperative ROM. Radiographic analysis showed that heterotopic ossification in 2 cases, and radiolucent around prosthesis in one case. There were no dislocation and revision cases.

CONCLUSIONThe THA can provide satisfactory clinical results in bony ankylosis of hips, which not only correct the deformity and recover the functions of hip, but also relieve the pain of hip to improve quality of life.

Adult ; Ankylosis ; diagnostic imaging ; physiopathology ; surgery ; Arthroplasty, Replacement, Hip ; methods ; Female ; Hip Joint ; physiopathology ; Humans ; Male ; Middle Aged ; Radiography ; Range of Motion, Articular

OBJECTIVETo study advantages of Pemberton acetabuloplasty for the treatment of developmental dislocation of hip joint.

METHODSAmong 106 children (116 hips) with development dislocation of hip joint treated by Pemberton acetabuloplasty, 19 patients (29 hips) were boy, and 87 patients (87 hips) were girl, 46 hips were left side, 50 hips were right side and 20 hips were double side, ranging in age from 18 months to 13 years, with an average of 7 years and 3 months. All the 116 hips were treated with Pemberton acetabuloplasty, or "complete operation", which included the cutting of adductor and iliopsoas, Pemberton acetabuloplasty combined with subtrochanteric femoral shortening and rotation osteotomy. Among the hips, 95 hips were treated with simple Pemberton acetabuloplasty, and the other 21 hips were treated with complete operation. All the patients with bilateral developmental dislocation of hip joint were performed the operation at one side firstly, and one year later the other side were performed and the plate fixation in the first operation were removed.

RESULTSAll the patients were followed-up ranging from 2 to 10 years, with an average of 6 years. According to Muller and Seddon's evaluation criteria, 67 hips got an excellent result, 34 good, 10 fair and 5 bad, the excellent and good rate was 87%.

CONCLUSIONPemberton acetabuloplasty is suitable for the treatment of developmental dislocation of hip joint in children at different ages, and the therapeutic effects are good.

Adolescent ; Child ; Child, Preschool ; Female ; Follow-Up Studies ; Hip Dislocation ; diagnostic imaging ; physiopathology ; surgery ; therapy ; Hip Joint ; diagnostic imaging ; growth & development ; physiopathology ; surgery ; Humans ; Infant ; Male ; Radiography ; Recovery of Function ; Treatment Outcome

OBJECTIVETo approach the short-term result and clinical application of metal on metal total hip arthroplasty with large diameter heads and evaluate its safety and efficacy clinically.

METHODSFrom January 2007 to March 2008, 39 hips in 37 patients (24 males and 13 females,ranging in age from 43 to 75 years, with an average of 58.5 years) were treated with metal on metal total hip arthroplasty with large diameter heads (ASRTM XL) included 14 cases of osteonecrosis (ON), 2 cases of osteoarthritis (OA), 18 cases of fresh femoral neck fracture, 3 cases of developmental dysplasia of the hip (DDH). All patients were evaluated by self assessment form, hip function examination, radiographs, preoperative and postoperative Harris hip score. Based on the short-term results, its design characteristic and clinical properties were analyzed.

RESULTSAll the incision healed well and there were not any complications such as femoral fracture, infection, dislocation and neurovascular injury. All patients obtained the follow-up and an average time was 16.5 months (12 to 19 months), all the joints had good or excellent clinical results. Radiographically, the positions of the prostheses were normal, the average limbs length and femoral eccentricity recovered as normal. The average range of motion of the hip improved remarkable, such as flexion improved from (20.1 +/- 8.2) degrees to (85.7 +/- 9.8) (t = 32.86, P < 0.01), abduction improved from (10.2 +/- 4.4) degrees to (41.5 +/- 9.1) degrees (t = 19.34, P < 0.01), adduction improved from (16.3 +/- 8.8) degrees to (40.3 +/- 10.4) (t = 11.00, P < 0.01),external rotation improved from (12.3 +/- 5.2)0 to (42.0 +/- 7.7) degrees (t = 19.96, P < 0.01), internal rotation improved from (3.4 +/- 1.1) degrees to (23.0 +/- 9.8) degrees (t = 12.41, P < 0.01). The Harris score rose from preoperative (39.3 +/- 5.6) to (91.4 +/- 10.3) at the latest follow up (t = 27.75, P < 0.01).

CONCLUSIONShort-term results show that metal on metal hip joint prosthesis with large diameter heads has advantages of small deformation of acetabular cup, lower wearing, large range of motion and few dislocation. It offers a newly valuable technology for treatment of osteonecrosis, osteoarthritis, femoral neck fracture and DDH with the higher requirement of movement after the operation.

Adult ; Aged ; Arthroplasty, Replacement, Hip ; methods ; Female ; Humans ; Joint Diseases ; diagnostic imaging ; pathology ; physiopathology ; surgery ; Male ; Metals ; Middle Aged ; Tomography, X-Ray Computed ; Treatment Outcome