Is there any correlation between the preoperative parameters and correction loss in patients operated for hyperkyphosis?

OBJECTIVES: Preoperative, postoperative, and latest follow-up data of sagittal balance and spinopelvic parameters of our patients treated surgically for hyperkyphosis were evaluated retrospectively, to determine whether there is any correlation between the preoperative pelvic incidence and postoperative correction loss. METHODS: Totally 33 patients (18 females) who were operated for hyperkyphosis and, were reached at the latest follow-up were included in the study. Age at operation, gender, date of operation, etiology and level of the deformities, instrumentation, and graft types were noted in detail. The kyphosis angles were measured by the Cobb method. The preoperative and postoperative spinopelvic parameters (pelvic incidence, sacral slope, and pelvic tilt) were recorded. RESULTS: The average follow-up was 4 years (range 3-8 years). The mean age at operation was 21 years (range 14-40 years). Scheuermann kyphosis was diagnosed as the etiological factor in 18 patients (53%). The mean preoperative kyphosis angle was 76° (range 55-98°), which decreased postoperatively to 38° (range 20-55°) (p<0.05). The mean kyphosis angle two years postoperatively was 41° (p>0.05). Preoperative and latest follow-up spinopelvic parameters were also not significantly different. Furthermore, no correlation could be found between the age at operation, instrumentation level, spinopelvic parameters, and correction loss. CONCLUSION: There is no correlation between the preoperative pelvic incidence and postoperative correction loss in patients treated surgically for hyperkyphosis. Further studies with larger sample size and longer follow-up should be conducted.

[Crescentic distal metatarsal osteotomy for the treatment of hallux valgus: a prospective, randomized, controlled study of two different fixation methods]. / Halluks valgus tedavisinde kresentik distal metatarsal osteotomi: Iki farkli tespit yöntemiyle ileriye dönük, randomize, kontrollü bir çalisma.

OBJECTIVES: This study was designed to draw attention to a distal metatarsal osteotomy technique, which has been somewhat overlooked for the treatment of hallux valgus, and to compare the clinical and radiographic results of two different fixation methods. METHODS: The study included 16 feet of 13 patients (11 women, 2 men) who were treated with crescentic distal metatarsal osteotomy for mild-to-moderate hallux valgus (<35 degrees ). The patients were randomized to two fixation methods with two cross K-wires (group 1; 7 patients, 8 feet) and a compressive screw (group 2; 6 patients, 8 feet). The results were evaluated using the AOFAS (American Orthopaedic Foot and Ankle Society) clinical rating scale for hallux, and a visual analog scale for pain. Radiographic measurements included the hallux valgus angle (HVA), first/second intermetatarsal angle (IMA), and distal metatarsal articular angle (DMAA), before and 12 months after surgery. RESULTS: There were no significant differences between the two groups with regard to pre- and postoperative AOFAS scores and pain scores, which showed significant improvements in both groups at the end of one-year follow-up (p<0.001). The HVA and IMA significantly decreased from 32 degrees to 19 degrees and from 12 degrees to 6 degrees in group 1, and from 30 degrees to 17 degrees and from 12 degrees to 8 degrees in group 2, respectively (p<0.001). A similar improvement was also seen in the DMAA (p<0.001). Postoperative radiographic improvements were similar in both groups. One patient in group 1 underwent revision surgery with the same technique due to recurrence, and one patient in group 2 had delayed union. CONCLUSION: Crescentic distal metatarsal osteotomy may be an appropriate technique in the treatment of mild-to-moderate hallux valgus.

[The results of curettage and bone cementing for enchondromas of the distal femur]. / Femur alt uç enkondromlarinin küretaj ve kemik çimentosu ile tedavi sonuçlari.

OBJECTIVES: We evaluated patients who were treated with curettage and cementing for enchondromas localized in the distal femur. METHODS: The study included 13 patients (7 females, 6 males; mean age 54 years; range 43 to 65 years) who underwent surgery for enchondromatosis in the distal femur. Enchondromas were detected incidentally in 10 patients; of these, complaints of pain appeared afterwards in seven patients. Surgery involved curettage and cement filling of the defects. Preoperative biopsies were obtained in seven patients. Clinical evaluations were made with a visual analog scale. The mean follow-up period was four years (range 1 to 5 years). RESULTS: Radiographically, the size of the lesions ranged from 3 cm to 6 cm (mean 4.5 cm). Computed tomography showed cortical extension in five patients and erosion leading to narrowing in the posterior cortex in one patient. The mean pain score decreased from 3.63 (range 0 to 7) to 0.54 (range 0 to 3) postoperatively (p<0.05). Histopathological diagnoses of surgical specimens were enchondroma in 12 patients and grade 1 chondrosarcoma in one patient. Postoperatively, only one patient who had erosion and narrowing in the posterior cortex required cast immobilization for three weeks. None of the patients had recurrence, sarcomatous changes, or infection. No functional loss developed after surgical treatment. CONCLUSION: Treatment of femoral enchondromas with curettage and cementing yields successful functional and radiologic results.