Purpose. This report compares midterm results of open neck osteoplasty + neck osteotomy vs arthroscopic osteoplasty for severe Slipped Capital Femoral Epiphysis (SCFE). Method. Database from 2006 to 2013 identified 22 patients out of 187 operations for SCFE. 12 underwent Open Neck Osteotomy (ONO) and osteoplasty by Ganz surgical dislocation approach. 10 underwent Arthroscopic Osteoplasty (AO). The mean follow-up for the ONO and AO groups were 59 (46 – 70), 36.1 (33 – 46) months respectively. Results. The unpaired t-test showed that the post-operative corrections were significantly better in the ONO than the AO group. Slip angle (16.7° (1°–28.6°) Vs 47.1° (40.2° – 53.5°) p = .0003), head neck offset correction (5mm (2–13mm) Vs 0mm (0mm – 2mm) p = 0.0003), alpha angle (34.6° (23.2°–45.6°) Vs 61.88° (52.1° – 123°) p= 0.0003), Modified Harris Hip Score (MHHS) (90(86.2–99) Vs 75.5 (58.75 – 96.8) p= 0.003) and internal rotation p= 0.0002. Paired t-test showed significant improvement in corrections within the individual groups compared with their own preoperative values. The results of AO group were oblique plane slip angle (55° (47.7° – 63.2°) Vs 47.1° (40.2° – 53.5°) p= 0.001), alpha angle (90.7° (65° – 131°) Vs 61.88° (52.1° – 123°) p= 0.0001), head neck offset (0mm (−3 mm to 0mm) Vs 0mm (0mm – 2mm) p= 0.001) and MHHS (52.7 (28.7 – 89.1) Vs 75.5 (58.75 – 96.8) p= 0.0005). Complications in ONO group were varus malunion (1) and non-union(1) of the osteotomy. In the arthroscopic group persistent impingement in 3 patients and 5 were not able to return to sports. Conclusion. Our results showed improved hip function following arthroscopic osteoplasty in severe SCFE. Considering the risks of an open surgical dislocation we could find that arthroscopy contributed worthy improvement in hip function in low demand patients

The treatment of fractures of the neck of the radius in children is difficult, particularly if the angulation of the fracture exceeds 60°. Since 1994 we have used closed reduction and stabilisation with an intramedullary Kirschner wire in patients with grade-IV fractures according to the classification of Judet et al. In a retrospective analysis of a two-year period (1994 to 1996), 324 children with fractures of the elbow were treated in our department. Of these, 29 (9%) had a fracture of the neck of the radius; six were grade-IV injuries (1.9%). Five of the latter had an excellent postoperative result with normal movement of the elbow and forearm. One patient with a poor result had a concomitant dislocation of the elbow. Our results suggest that closed reduction and intramedullary pinning of grade-IV fractures allows adequate stabilisation while healing occurs

In order to determine the incidence of avascular necrosis after osteotomy of the talar neck, we re-evaluated 11 patients (16 feet) with idiopathic club foot who had undergone this procedure at a mean age of eight years (5 to 13) to correct a residual adduction deformity. All had been initially treated conservatively and operatively. The mean follow-up was 39 years (36 to 41). Surgery consisted of a closing-wedge osteotomy of the talar neck combined, in 14 feet, with lengthening of the first cuneiform and a Steindler procedure. At follow-up eight feet were free from pain, three had occasional mild pain and five were regularly painful after routine activities. Two patients were unlimited in their activity, six occasionally limited after strenuous and three regularly limited after strenuous activity. Using the Ponseti score, the feet were rated as good in four, fair in three and poor in nine. In seven feet avascular necrosis with collapse and flattening of the talar dome had occurred. In all of these feet the children were younger than ten years of age at the time of surgery. In three feet, avascular necrosis of the talar head was also observed. We conclude that osteotomy of the talar neck in children under the age of ten years can cause avascular necrosis and should be abandoned

Aims. The Ponseti method is an effective evidence-based treatment for clubfoot. It uses gentle manipulation to adjust the position of the foot in serial treatments towards a more physiological position. Casting is used to hold the newly achieved position. At first, the foot resists the new position imposed by the plaster cast, pressing against the cast, but over time the tissues are expected to adapt to the new position and the force decreases. The aim of this study was to test this hypothesis by measuring the forces between a clubfoot and the cast during treatment with the Ponseti method. Patients and Methods. Force measurements were made during the treatment of ten idiopathic clubfeet. The mean age of the patients was seven days (2 to 30); there were nine boys and one girl. Force data were collected for several weeks at the location of the first metatarsal and the talar neck to determine the adaptation rate of the clubfoot. Results. In all measurements, the force decreased over time. The median (interquartile range) half-life time was determined to be at 26 minutes (20 to 53) for the first metatarsal and 22 minutes (9 to 56) for the talar neck, suggesting that the tissues of the clubfoot adapt to the new position within several hours. Conclusion. This is the first study to provide objective force data that support the hypothesis of adaptation of the idiopathic clubfoot to the new position imposed by the cast. We showed that the expected decrease in corrective force over time does indeed exist and adaptation occurs after a relatively short period of time. The rapid reduction in the forces acting on the foot during treatment with the Ponseti method may allow significant reductions in the interval between treatments compared with the generally accepted period of one week

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To investigate the risk factors for unsuccessful radial head reduction (RHR) in children with chronic Monteggia fractures (CMFs) treated surgically.

Aims. The aims of this study were to evaluate the abductor function in moderate and severe slipped capital femoral epiphysis (SCFE), comparing the results of a corrective osteotomy at the base of the femoral neck and osteoplasty with 1) in situ epiphysiodesis for mild SCFE, 2) contralateral unaffected hips, and 3) hips from healthy individuals. Patients and Methods. A total of 24 patients (mean age 14.9 years (. sd. 1.6); 17 male and seven female patients) with moderate or severe SCFE (28 hips) underwent base of neck osteotomy and osteoplasty between 2012 and 2015. In situ epiphysiodesis was performed in seven contralateral hips with mild slip. A control cohort was composed of 15 healthy individuals (mean age 16.5 years (. sd. 2.5); six male and nine female patients). The abductor function was assessed using isokinetic dynamometry and range of abduction, with a minimum one-year follow-up. Results. We found no differences in mean peak abductor torque between the hips that underwent osteotomy and those that received in situ epiphysiodesis (p = 0.63), but the torque was inferior in comparison with contralateral hips without a slip (p < 0.01) and hips from control individuals (p < 0.001). The abduction strength was positively correlated with the range of hip abduction (R = 0.36; p < 0.001). Conclusion. Although the abductor strength was not restored to normal levels, moderate and severe SCFE treated with osteotomy at the base of the femoral neck and osteoplasty showed abductor function similar to in situ epiphysiodesis in hips with less severe displacement. Cite this article: Bone Joint J 2018;100-B:1524–32

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Within healthcare, several measures are used to quantify and compare the severity of health conditions. Two common measures are disability weight (DW), a context-independent value representing severity of a health state, and utility weight (UW), a context-dependent measure of health-related quality of life. Neither of these measures have previously been determined for developmental dysplasia of the hip (DDH). The aim of this study is to determine the DW and country-specific UWs for DDH.

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The aim of this study was to compare outcomes of guided growth and varus osteotomy in treating Kalamchi type II avascular necrosis (AVN) after open reduction and Pemberton acetabuloplasty for developmental dysplasia of the hip (DDH).

Aims. The purpose of this study was to calculate the dislocation rate following open or closed reduction for developmental dysplasia of the hip (DDH) in our unit. In addition we evaluated the posterior neck line as a method of determining hip relocation and assessed the morphology of the dysplastic acetabulum on single slice CT scan. Method. We retrospectively assessed all patients operated on for either open or closed reduction for DDH between August 2007 and August 2009 and evaluated their notes, CT scans and radiographs. The immediate post-operative dislocation rate was calculated, as was the subsequent re-dislocation rate and late subluxation rate. The acetabular morphology was assessed to determine whether the acetabulae were “S” shaped or “C” shaped. A novel method for confirming hip reduction was also appraised. Results. Seventy-five hips were operated on during the study period. The immediate post-operative dislocation rate was 9.3%. There were no subsequent dislocations in any of the patients in whom CT scans had confirmed adequate initial reduction. Two patients went on to develop late subluxation. 98.6% of dysplastic acetabulae displayed an S shaped acetabulum and 1 hip had a virtually flat acetabulum. The posterior neck line test for dislocation had a 85.7% sensitivity and 96.9% specificity. Conclusions. Immediate post-operative CT scan of the hip is a useful investigation following reduction of the hip for DDH. If it can be established that the hip is reduced on the scan it is unlikely to re-dislocate. The S shape of the acetabulum in DDH is consistently present and is a marker of the dysplastic posterior acetabular wall. The posterior neck line is a reliable measure of hip reduction

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The aim of this study is to develop a core set of outcome domains that should be considered and reported in all future trials of childhood limb fractures.

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Perthes’ disease (PD) often results in femoral head deformity and leg length discrepancy (LLD). Our objective was to analyze femoral morphology in PD patients at skeletal maturity to assess where the LLD originates, and evaluate the effect of contralateral epiphysiodesis for length equalization on proximal and subtrochanteric femoral lengths.

Aim:. Audit of the outcome of subcapital osteotomy for a series of cases of severe unstable slipped capital femoral epiphysis. Method:. 57 cases of unstable severe slipped capital femoral epiphysis were operated on by a single surgeon between 2000 and 2011. The procedure was performed through the anterior abductor sparing approach. Patients have been followed up prospectively and the results are presented at average follow up is 6.4 years with a minimum of 18 month follow to include all risks of avn. Results:. There were 35 males (average age 13.85 years) and 22 females (average age 12.4 years). Three syndromic cases, 2 Trisomy 21 (with no avn) and one pituitary/corpus callosum agenesis (developed avn) were included. 5 patients (8.7%) developed avn, one syndromic, another with noted avn on pre-operative MRI and the third with partially healed growth plate. Excluding these patients the avn rate was 2/54 (3.7%). Re-operations were performed on the avn group including two head neck debridements and valgus osteotomy, one head neck debridement alone and one arthrodesis. One patient is awaiting debridement and valgus osteotomy. One patient developed chondrolysis and has had no intervention 6 years. 2 patients developed asymptomatic heterotopic bone ossification and the incidence of lateral cutaneous nerve symptoms was 35% none requiring intervention. Leg length difference was less than 1 cm in those patients who did not develop avn. Conclusion:. This single surgeon audit shows lower risk of avn than and strengthens the argument for referral to specific centres for such conditions. Level of evidence: IV

Introduction. Perthes' disease is associated with coxa breva, plana and magna, and a high riding prominent greater trochanter causing abductor shortening and weakness, leg shortening and extra-articular impingement. A trochanteric advancement with an infero-lateralising oblique sliding osteotomy of the proximal femur would lengthen femoral neck, improve abductor length and strength, relieve impingement and improve leg length. We assessed the mid-term outcomes for this procedure. Method. We included patients who underwent the operation by the senior author (JNOH) with more than 2 years follow-up. The osteotomies were performed minimally invasively under image intensifier guidance and fixed with blade plate or locking plates. We assessed functional scores, radiological changes in neck length, Tonnis grading for arthritis and evidence of femoral head avascular necrosis, time interval for conversion to hip arthroplasty and associated complications. Results. Twenty four patients (25 hips) underwent the procedure at mean age of 18.7 years (range:9.3–38.8) with a mean follow-up of 5 years (range:2–13.8). At the last assessment, the mean Oxford Hip Score was 41.6 (range:58–27), Non-Arthritic Hip Score was 53.4 (range:25–77) and UCLA activity score was 4.2 (range:2–6). For changes in neck length, the mean “Head-centre-to-Greater-trochanteric-tip-distance” was 60 mm (range:43–78) compared to 39 mm (range:30–48) pre-operatively and the mean “Head-centre-to-Lesser-trochanteric-tip-distance” was 54 mm (range:47–64) compared to 37 mm (range:31–41) pre-operatively. The mean Tonnis grade was 1.5 (range:1–3) compared to 1.3 (range:1–2) pre-operatively. Two patients underwent arthroplasty conversion at 2 and 13.8 years later. One patient needed head-neck debridement for impingement and 2 patients underwent trochanteric refixation for non-union. There were no cases of avascular necrosis. Discussion. Symptomatic Perthes' hip deformity in adolescents and young adults is difficult to treat with joint preserving surgery. The mid-term clinical, functional and radiological results for double proximal femur osteotomy are encouraging

Purpose. We share our experience in management of failed in-situ pinning in severe unstable Slipped Capital Femoral Epiphysis (SCFE) by surgical dislocation approach. Method. A retrospective review of hip database from 2006 to 2013 showed 41 children underwent surgical dislocation for SCFE. We identified seven who had severe slip with failed in-situ pinning. Results. The mean age at presentation was 11.9 years (10–14 years). The average interval between in-situ pinning and surgical dislocation was 10 months (2 to 18 months). The mean follow-up was 50.14 months (25 – 66 months). The mean preoperative slip angle in the oblique plane was 76° (61.1° – 121.5°), the mean preoperative alpha angle was 127.3° (93.1° – 145°), and preoperative head neck offset was −12.7mm (0 – −21.2mm). The mean corrections at latest follow-up were oblique plane slip angle 20.6° (4.2° – 41.8°), alpha angle 51.3° (45.3° – 58°), and head-neck offset 9.5mm (1 – 16.2mm). The mean Modified Harris Hip Score (MHHS) preoperatively was 19.57 (0 – 56) and the mean non-arthritic hip score (NAHS) was 21.07 (5 – 51.5). The mean MHHS at the last visit was 88.97 (71 – 96) and NAHS was 84.28 (69.5 – 91). All patients had gross external rotation deformity at presentation; mean internal rotation of 25° ranging from (0 – 40°) was achieved at follow-up. Four patients had avascular necrosis identified on subtraction MRI scan preoperatively. These four underwent second stage hinged distraction of the hip. Mean duration of hinged distraction was 7.6 months. At follow-up 4 had Tonnis 0, one Tonnis 1 and two Tonnis 2 grade of osteoarthritis. Conclusion. The short-term result of our protocol for management of failed in-situ pinning by staged surgical dislocation and hinged distraction has been encouraging. This could potentially prolong the life of native hip to the third decade of life before definitive salvage procedures could be contemplated

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We aimed to determine hip-related quality of life and clinical findings following treatment for neonatal hip instability (NHI) compared with age- and sex-matched controls. We hypothesized that NHI would predispose to hip discomfort in long-term follow-up.

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Osteonecrosis (ON) can cause considerable morbidity in young people who undergo treatment for acute lymphoblastic leukaemia (ALL). The aims of this study were to determine the operations undertaken for ON in this population in the UK, along with the timing of these operations and any sequential procedures that are used in different joints. We also explored the outcomes of those patients treated by core decompression (CD), and compared this with conservative management, in both the pre- or post-collapse stages of ON.

We studied in vivo the talonavicular alignment of club foot in infants using MRI. We examined 26 patients (36 feet) with congenital club foot. The mean age at examination was 9.0 months (4 to 12). All analyses used MRI of the earliest cartilaginous development of the tarsal bones in the transverse plane, rather than the ossific nucleus. The difference in the mean talar neck angle (44.0 ± 8.1°) in club foot was statistically significant (p < 0.001) when compared with that of the normal foot (30.8 ± 5.5°). The difference between the mean angles in the group treated by operation (47.9 ± 6.7°) and those treated conservatively (40.1 ± 7.5°) was also statistically significant. The anatomical relationship between the head of the talus and the navicular was divided into two patterns, based on the position of the mid-point of the navicular related to the long axis of the head. In the operative group, 18 feet were classified as having a medial shift of the navicular and none had a lateral shift. In the conservative group, 12 showed a medial shift of the navicular and six a lateral shift. All nine unaffected normal feet in which satisfactory MRI measurements were made showed a lateral shift of the navicular. Club feet had a larger talar neck angle and a more medially deviated navicular when compared with normal feet. This was more marked in the surgical group than in the conservative group

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Hip displacement, common in patients with cerebral palsy (CP), causes pain and hinders adequate care. Hip reconstructive surgery (HRS) is performed to treat hip displacement; however, only a few studies have quantitatively assessed femoral head sphericity after HRS. The aim of this study was to quantitatively assess improvement in hip sphericity after HRS in patients with CP.

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Guided growth has been used to treat coxa valga for cerebral palsy (CP) children. However, there has been no study on the optimal position of screw application. In this paper we have investigated the influence of screw position on the outcomes of guided growth.

The outcome of displaced hips treated by Somerville and Scott’s method was assessed after more than 25 years. A total of 147 patients (191 displaced hips) was reviewed which represented an overall follow-up of 65.6%. The median age at the index operation was two years. During the first five years, 25 (13%) hips showed signs of avascular change. The late development of valgus angulation of the neck, after ten years, was seen in 69 (36%) hips. Further operations were frequently necessary. Moderate to severe osteoarthritis developed at a young age in 40% of the hips. Total hip replacement or arthrodesis was necessary in 27 (14%) hips at a mean age of 36.5 years. Risk factors identified were high dislocation, open reduction, and age at the original operation. Two groups of patients were compared according to outcome. All the radiographic indices were different between the two groups after ten years, but most were similar before. It takes a generation to establish the prognosis, although some early indicators may help to predict outcome