Egemen Altan

Short-term functional outcomes of first metatarsophalangeal total joint replacement for hallux rigidus.

Background: Although metatarsophalangeal (MTP) arthrodesis has been advocated by many authors, implant arthroplasty appears to be successful option in advanced hallux rigidus (HR). The aim of our study was to evaluate the early results of the ToeFit-Plus prosthesis for the treatment of HR. Methods: Between December 2007 and January 2011, a total of 26 toes of 24 patients with MTP arthritis of the great toe were treated with ToeFit-Plus implant. The average follow-up time was 29.9 (range: 25 to 62) months. All patients were evaluated clinically and radiographically. Postoperative satisfaction and function were scored according to the American Orthopaedic Foot and Ankle Society (AOFAS) score. Pain was assessed with the use of a visual analogue scale. Results: Mean preoperative AOFAS score improved from 42.7 (range: 36 to 59) to 88.5 (range: 59 to 98) at the final follow-up (P < .01). Preoperative average visual analogue scale pain scores improved from 7.4 preoperatively to 1.9 at the final follow-up (P < .01). The average MTP joint range of motion improved from 25.9 degrees preoperatively to 53.8 degrees at the final follow-up. No radiologic loosening was found, but radiolucency was observed in 2 patients with this implant. No revision was required for any of the patients during the follow-up period. Conclusions: This total first MTP joint prosthesis yielded good functional outcome and high patient satisfaction level with low early complication rate. Preservation of joint movement and good pain relief with early mobilization were the advantages of this procedure. Salvage arthrodesis remains an option if future revisions are indicated. Level of Evidence: Level IV, retrospective case series.

The effect of platelet-rich plasma on osteochondral defects treated with mosaicplasty.

PurposeThis study investigated the efficacy of platelet-rich plasma (PRP) on articular surfaces on which the mosaicplasty technique was performed. Our hypothesis was that PRP can accelerate the osseointegration process and enhance the quality of articular integrity after the mosaicplasty procedure.MethodsStandard defects were created in the femoral groove of both patellofemoral joints of 12 New Zealand rabbits. PRP solution was placed inside the defect before fixation of the osteochondral autografts and injected inside the involved joint after capsular closure of the tested knees. The contralateral knees served as the control sides. The animals were euthanized three or six weeks after mosaicplasty, and both limbs were assessed according to Pineda’s histological grading scale. Significance level was set at p ≤ 0.05 a priori, and the Mann–Whitney U test was used for statistical analysis.ResultsHistologic findings at the interface between the transferred autograft and the original cartilage revealed better integration of the adjacent surfaces in the mosaicplasty with PRP group three weeks after the procedure; the difference was significant (p < 0.05). However, no significant difference in the transition zone was observed between the groups six weeks after the experiment (p = 0.59).ConclusionsOur animal model showed that adjunctive use of PRP produced a better healing response and resulted in superior histological scores after three weeks compared with the mosaicplasty-only procedure. Interpretation of our results is important in terms of rapid return to previous activity levels. Thus, application of PRP can represent a valid therapeutic option for improving the efficacy of mosaicplasty by stimulating the local healing response.

Long-term results of conservative treatment for thoracolumbar compression fractures

OBJECTIVES We evaluated the radiologic and clinical outcomes of conservative treatment for thoracolumbar compression fractures. METHODS Forty-three patients (28 males, 15 females; mean age 39 years; range 24 to 54 years) were treated conservatively for 47 thoracolumbar compression fractures. All the patients were assessed by plain radiograms and computed tomography. According to the Denis classification, there were eight type A, 20 type B, 12 type C, and seven type D fractures. Involvement was at L1 in 30, L2 in five, and T12 in 12 fractures. There were no neurological deficits. Treatment involved use of a body cast for two months, followed by a thoracolumbosacral orthosis for four months. Radiographically, local kyphosis angle and sagittal index were measured before treatment, after casting, and at the final follow-ups. Pain and functional scales proposed by Denis et al. were also utilized. The mean follow-up was 7.5 years (range 6 to 11 years). RESULTS The mean local kyphosis angle and sagittal index were measured as 12.6 and 13.7 degrees before treatment, and 5.9 and 7.0 degrees after casting, respectively (p<0.05). However, both did not differ significantly from the baseline at the final measurements (12.7 and 13.9, respectively; p>0.05). The mean pain and functional scores were 1.4 and 1.6, respectively. Four patients had moderate to severe back pain despite mean kyphosis angles of 12 (baseline), 13.5 (after casting), and 14.8 (final). Two patients required substitution of the body cast for orthosis due to excessive sweating, and three patients received local treatment for skin problems secondary to the use of orthosis. CONCLUSION If the kyphosis angle is less than 30 degrees, compression fractures are supposed to be stable to be treated conservatively with satisfactory clinical results. Functional results seem to be unaffected from the fact that casting does not improve radiographic parameters in the long-term.

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.

Endobutton Fixation Technique for Multifragmented Coronoid Fractures.

Coronoid fractures commonly occur in a part of unstable elbow fractures. Stable coronoid fracture fixation is important for early elbow motion. It may be difficult to fix multifragmented coronoid process fractures with loose capsular attachment. Thus, we demonstrated the endobutton suspensory technique to fix the anterior coronoidal fragments due to its suspensory effect providing capsular attachment. This technique allows stable fixation to the small multifragmented coronoid fractures with early range of motion.

Diagnosis of hyperostosis of the medial calcaneal tubercle similar to a heel spur.

Calcaneal osteochondromas are rare conditions. To our knowledge, we present the first report of a calcaneal osteochondroma in an adolescent patient that was surprisingly similar to a heel spur, and, in addition, symptoms due to compression of the medial plantar nerve were present.

Comment on: “Developmental dysplasia in male infants: risk factors, instability and ultrasound screening”

233 We enjoyed Dr. Koşar et al’s well designed and well written research paper entitled “Developmental dysplasia in male infants: risk factors, instability and ultrasound screening” in a recent issue of the Journal (Hip International 2011; 21(4): 409-414). We agree with the author’s view that ultrasound assessment provides the ‘gold standard’ in all infants. Despite this, Graf’s method requires several measurements of angles. In addition, obtaining the correct sectional plane requires skill and experience. Therefore, the expertise of the operator has a significant effect on the results (1-3). The Graf method is based on a single coronal image. Graf developed a morphologic and geometric hip classification scheme (types I-IV) using an alpha angle, which measures the osseous acetabular roof angle, and a beta angle, which defines the position of the echogenic fibrocartilaginous acetabular labrum (4). Comment on: “Developmental dysplasia in male infants: risk factors, instability and ultrasound screening”

Giant Cell Tumor of Second and Third Metatarsals and a Simplified Surgical Technique: Report of Two Cases

Giant cell tumor (GCT) is a rare benign tumor that often arises in tendon sheath as well as long bones of the lower extremity in adults, although localization in the metatarsus is rare. In this report, the authors describe the rare case of GCT localized to the third metatarsal GCT in a skeletally mature 17-year-old girl, and also describe the results of distal metatarsal resection with Kirschner wire stabilization for the treatment of this condition.