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Cubitus varus deformity is a common complication of supracondylar fractures in children. Anatomic correction is the key to obtaining good functional results and avoiding later symptomatic degradation. Different techniques have been described, mainly lateral closing wedge osteotomy. A medial opening wedge osteotomy seems more intuitive, allowing an anatomic reduction, but it is technically challenging. Two-plane radiographs are too simplistic to appreciate the 3D deformity. With medical imaging and image processing advances, three-dimensional (3D) virtual models of a patient's anatomy can be generated. Rapid 3D printing has allowed virtual simulations of surgical corrections to be transferred to real-world applications in the operating room, allowing more precise and accurate surgery with better 3D corrections. 3D computer modeling with the development of customized drilling and cutting guides allows complex medial opening wedge osteotomy for correction of cubitus varus deformity in immature children with best-fit plate synthesis. LEVEL OF EVIDENCE: IV., (Copyright © 2023 Elsevier Masson SAS. All rights reserved.)

Background: The objective of this study was to assess the complication and re-operation rates, evaluate the risk of non-union, and describe the functional outcomes at last follow-up in children and adolescents after lower-limb malignant tumour resection and reconstruction using the induced-membrane technique., Hypothesis: Weight-bearing resumption 6 weeks after the second stage of the induced-membrane procedure promotes bone healing., Material and Methods: The study included 13 patients (9 with osteosarcoma, 3 with Ewing's sarcomas, and 1 with alveolar sarcoma) managed between 2000 and 2020 by oncological femoral or tibial resection followed, at a distance from adjuvant chemotherapy, by reconstruction using the induced-membrane technique. Non-union was the primary outcome measure and the MusculoSkeletal Tumor Society (MSTS) lower-limb functional score was the secondary outcome measure. Mean follow-up was 6.1 years (range, 2.0-12.7). At last follow-up, mean age was 18.1 years (range, 11.0-26.0) and the mean MSTS score was 66.6% (37.0-93.0%)., Results: After the second reconstruction stage, 8 complications developed in 6 patients (46%). Either a complication or limb-length inequality required 12 re-operations in 8 patients (61.5%). Non-union occurred after reconstruction in 5 (38.5%) patients. Early resumption of 50% weight-bearing 6 weeks after reconstruction was associated with bone healing (p=0.02)., Conclusion: The non-union rate was 38.5%. Partial, 50% weight-bearing with two elbow crutches and an orthosis, if allowed by construct stability, may promote bone healing., Level of Evidence: IV., (Copyright © 2024 Elsevier Masson SAS. All rights reserved.)

Management of the upper limb in children with cerebral palsy is often complex and must be carried out by a team experienced in this field. Several clinical parameters must be taken into consideration, such as higher functions, visual problems, overall upper limb function, motor control, sensitivity, presence of hemineglect or synkinesis, limb position at rest and during walking. And last but not least, a complete analysis of the upper limb is required. It is only after this exhaustive assessment - which often includes occupational therapy, physiotherapy and in some cases, video and electromyography evaluations - that a treatment indication can be discussed with the patient's family. Other than baseline treatment consisting of rehabilitation, occupational therapy and bracing, botulinum toxin injections could be an option, targeting specific muscle groups. Surgical treatments, which are often indicated in severe forms with contractures, are proposed after the patient's case is presented at a multidisciplinary meeting. These include selective neurotomy, muscle-tendon release, transfer or lengthening, and procedures on bone and joints (osteotomy, arthrodesis). LEVEL OF EVIDENCE: Expert opinion., (Copyright © 2023 Elsevier Masson SAS. All rights reserved.)

Background: Amputation of the abnormal segment seems to be the reference standard treatment for the surgical management of macrodactyly of the foot in children. Our objectives here were to detail the surgical strategies according to the cause, anatomical characteristics, and static or progressive nature of the macrodactyly and to evaluate the long-term clinical outcomes., Hypothesis: Conservative treatment can be an option in the management of static macrodactyly of the foot in children., Material and Methods: We retrospectively included 24 feet in 19 patients seen consecutively. There were 12 primary and 12 secondary types. The macrodactyly was static in 9 cases and progressive in 15 cases. The treatment consisted in either conservative procedures or amputation of the segment. All patients completed the Oxford Ankle Foot Questionnaire for Children (OxAFQ-C) to evaluate their quality of life, shoe wear issues, and satisfaction with their treatment., Results: Mean age at first surgery was 5.8 years (range, 0.5-11.5) and the mean interval between two procedures was 2.3 years (range, 0.3-5.5). Mean number of procedures per foot was 2.2 par pied (range, 0-7). All 9 static forms were managed conservatively. Amputation was performed in 11 of the 15 progressive forms. The mean number of procedures was significantly higher in the progressive forms (4.1 vs. 1.5/pied; p=0.006). Two patients died during follow-up. The remaining 17 patients, with 22 affected feet (primary and secondary in 11 cases; progressive in 14 cases and static in 8 cases) were re-evaluated. Mean follow-up was 9.4 years (range, 2.7-20.6). The final OxAFQ-C score was 46/60 (range, 18-58). Of the 17 patients, 86% would be willing to repeat the same surgical procedures and 77% were satisfied with their treatment at last follow-up. We found no differences between the groups managed with amputation and with conservative treatment regarding quality of life, satisfaction, or shoe size difference., Conclusions: Conservative treatment deserves a place in the treatment of static macrodactyly of the foot in children. Regarding amputation of the segment in progressive forms, it is important to reassure the patients and parents about the expected results but also to inform them about the risk of requiring repeat surgical procedures., Level of Evidence: IV, retrospective study., (Copyright © 2021 Elsevier Masson SAS. All rights reserved.)

Dynamic shoulder instability in children or adolescents, whose glenohumeral growth plates are still open, is a rare condition with an etiology that is hard to decipher. Atraumatic and recurrent forms are most common, contrary to adults. Disruptions to capsule and ligament maturation, muscle balance or bone growth can lead to glenohumeral instability. The etiology assessment, which needs to be multidisciplinary in atraumatic forms, aims to collect the medical history, analyze the direction of the instability, determine whether it is voluntary or involuntary, and look for a history of trauma, connective tissue abnormality, psychological disorder, neuromuscular pathology or congenital malformation. The initial treatment is conservative. It requires a multidisciplinary team when the shoulder instability is voluntary. Surgical treatment is reserved for symptomatic forms that do not respond to conservative treatment and have an impact on daily life and/or sports participation after a minimum of 6 months of well-conducted rehabilitation. The results of surgical stabilization mainly depend on the features of the instability, the anatomical structures damaged and the etiology. Episodes of recurrent instability in children/adolescents with open glenohumeral growth plates can fade in adulthood or can get worse with the development of structural damage. Early detection of poor outcomes and suitable treatment will help to limit the occurrence of osteoarthritis in the medium and long term. LEVEL OF EVIDENCE: Expert opinion., (Copyright © 2022 Elsevier Masson SAS. All rights reserved.)

Introduction: Three-dimensional (3D) planning and patient-specific surgical guides are increasingly used in the treatment of skeletal deformities. The present study hypothesis was that they are reliable in forearm osteotomy in children, with low morbidity., Material and Methods: Twenty-there children with one or several osteotomies to correct forearm deformities were retrospectively included: 9 (20 osteotomies) with surgical guide (G+), and 14 (28 osteotomies) without (G-). Etiologies comprised 8 cases of Madelung disease (3G+, 5G-) and 15 of post-traumatic malunion (6G+, 9G-). Mean age at surgery was 14.8±1.9 years. The patient-specific 3D-printed polyamide guides were produced from 3D virtual models based on 3D CT reconstruction. Mean follow-up was 22.1±13.6 months., Results: Mean correction error was 5.3°±4.1 and 4.2°±4.1 in the frontal and sagittal planes respectively in G+ (p=0.6). Surgery time was significantly shorter in G+, by a mean 42min (p=0.02). Mean total radiation dose (preoperative CT+intraoperative fluoroscopy) was significantly higher in G+ (p<0.0001). Complications rates were similar between groups. Improvement in PRWE score was significantly greater in G+., Conclusion: The present preliminary results were encouraging. 3D planning and patient-specific surgical guides can be used in the treatment of forearm deformity in children., Level of Evidence: III; retrospective cohort study., (Copyright © 2021 Elsevier Masson SAS. All rights reserved.)

The incidence of untreated Monteggia fracture-dislocations is not insignificant. But there is no consensus as to the surgical indication and best surgical technique to use. Single-stage reduction of the radial head through an elbow arthrotomy and ulnar osteotomy is a complex surgical procedure that requires stabilization of the ulnar segments during every step of the intervention. Here, we describe the possibility of using an external fixator intraoperatively to facilitate the various steps of the procedure: (1) gradual distraction and angulation of the osteotomy site to allow thorough excision of any interposed capsular tissue, (2) stable hold on the ulnar fragments independent of the surgical assistant, which allows the stability of the radial head reduction to be tested in pronation and supination and (3) facilitation of plate fixation at the ulnar osteotomy site. LEVEL OF EVIDENCE: IV; case series., (Copyright © 2021 Elsevier Masson SAS. All rights reserved.)

Introduction: In the pediatric population, fractures of the radial neck account for approximately 1% of all fractures and can have substantial consequences. Given the growing popularity of horse riding and the high-energy traumas that this can entail, we sought to assess prognosis for radial neck fracture sustained in horse riding., Hypothesis: Radial neck fracture sustained in horse riding is more severe and more frequently associated with other ipsilateral osteoarticular lesions which worsen prognosis., Material and Method: We performed a multicenter retrospective comparative study in a continuous series of 39 patients. The inclusion criteria consisted of radius neck fracture in children under the age of 15 years. Endpoints comprised associated lesions at time of trauma, and ranges of elbow motion in pronation/supination and flexion/extension at last follow-up., Results: Compared to other etiologies, radial neck fractures following horse-riding accidents were more frequently associated with other ipsilateral osteoarticular lesions (p=0.0002), and more often required open reduction (p=0.0409) and postoperative rehabilitation (p=0.041). However, there were no significant differences in any ranges of motion at last follow-up (p>0.05)., Conclusion: Radial neck fractures following horse-riding accidents in children were more severe than those caused by other mechanisms. Awareness campaigns in riding clubs and development of specific protective equipment should be considered to reduce occurrence., Level of Evidence: Therapeutic III - Retrospective comparative study., (Copyright © 2020 Elsevier Masson SAS. All rights reserved.)

Introduction: Madelung's deformity is rare. Treatment often consists in radial or ulnar osteotomy, Vickers' ligament resection or ulnar epiphysiodesis. The present multicenter retrospective study reports clinical and radiographic results in various surgeries. The study hypothesis was that early surgery improves outcome., Material and Method: Files were analyzed for 36 children (47 wrists) operated on between 1998 and 2015. Mean age at diagnosis was 12 years (range, 6-15 years). Mean follow-up was 7.2 years (range, 2-17.4 years). Two age groups were distinguished: 6-11 and 12-17 years. Endpoints were esthetic, functional (Mayo Wrist Score: MWS) and radiographic [lunate fossa angle (LFA), radial height (RH), lunatum cover rate (LCR), ulnar head translation (UHT), lunatum ascension (LA)]. Techniques mainly comprised distal radius osteotomy (DRO) with ulnar shortening osteotomy (USO), and Vickers' ligament resection (VR), either isolated or associated to osteotomy., Results: Age at surgery guided choice of technique, but did not impact results. VR gave better functional results when performed in young children; it was mainly performed in the 6-11 years age group, providing very satisfactory results (7 out of 8 wrists) with excellent function (7 out of 8), without improving radiographic parameters; in the 12-17 years age group, even when esthetic results were excellent, functional results were only good-to-acceptable (3 out of 5 wrists) and 1 result was poor. DRO+USO was mainly performed in the 12-17 years age group, with very satisfactory or satisfactory results (8 out of 10 wrists) and excellent function (6 out of 10). DRO+USO appeared to be an option of choice, significantly improving radiographic parameters and correcting the deformity (24.5° improvement in LFA (p=0.0033) and 36.2% improvement in LCR (p=0.0103)). DRO+USO+VR was mainly implemented in the 12-17 years age group, with very satisfactory results (3 out of 4 wrists) and excellent-to-good MWS in most cases (3 out of 4), but without significant radiographic improvement., Discussion: Esthetic and functional results were comparable regardless of age, except for VR, which gave better functional results in the 6-11 years age group, but without significant difference., Conclusion: The present study showed that, regardless of children's age, surgery provided esthetic, functional and radiographic benefit, although no decision-tree could be drawn up., Level of Evidence: IV., (Copyright © 2020 Elsevier Masson SAS. All rights reserved.)

Background: Coverage of soft-tissue defects of the ankle and foot is often challenging. The distally based sural fascio-cutaneous flap is useful for reconstructing the lower leg, ankle, heel, and foot but has rarely been evaluated in paediatric patients. The objectives of this study were to assess the reliability of this flap in paediatric patients, to describe the complications associated with its use, and to define its indications in paediatric patients with soft-tissue defects of the ankle and foot., Hypothesis: We hypothesised that the sural flap was reliable for covering soft-tissue defects at the ankle and foot in paediatric patients., Material and Methods: A distally based sural fascio-cutaneous flap was used to cover soft-tissue defects of the ankle and foot in 20 paediatric patients between 1997 and 2013. The evaluation at last follow-up included a physical examination and determination of the modified functional Kitaoka score. Mean follow-up was 50.6 months (range, 10-192 months) and mean patient age at surgery was 8.8 years (range, 1.5-17 years). Trauma was the most common cause of soft-tissue defect (n=12); other causes were surgical-site infections (n=2), tumours (n=3), chronic ulcer (n=1), burn injury (n=1), and infusion fluid extravasation (n=1)., Results: Of the 20 flaps, 16 (80%) remained fully viable, whereas 4 developed partial necrosis requiring excision and skin grafting, which consistently ensured a good outcome. Other complications consisted of marginal necrosis (n=4), unsightly donor-site scars (n=5), and infection (n=2). Abnormal flap sensation was noted in 11 patients. The mean modified Kitaoka score was 65/80 (range, 0-80), and the score value indicated that function was excellent in 9 (45%) patients, good in 9 (45%) patients, and poor in 2 (10%) patients., Discussion: The distally based sural fascio-cutaneous flap is a method of choice for covering soft-tissue defects of the ankle and foot in paediatric patients. This reliable flap spares the major blood vessels and has a strong blood supply. Its best indication is coverage of an acute traumatic soft-tissue defect with exposure of a vital structure. In patients requiring late reconstruction, caution is in order when considering the use of a distally based sural fascio-cutaneous flap, which can induce delayed complications, most notably at the donor site., Level of Evidence: IV, retrospective case-series study., (Copyright © 2015 Elsevier Masson SAS. All rights reserved.)

Introduction: Treatment of severe radial club hand is difficult. Several authors have emphasized the importance of preliminary soft-tissue distraction before centralization., Hypothesis: Treatment of severe radial club hand by articulated mini-rail allowing prior soft-tissue distraction improves results., Material and Methods: Thirteen patients were treated sequentially, with an initial step of distraction and a second step of centralization. The first step consisted in fitting 2 mini-fixators, one in the concavity and the other in the convexity of the deformity. Four transfixing wires through the ulna and metacarpal bone connected the 2 fixators. After this preliminary distraction, the fixator was removed and a centralization wire was introduced percutaneously, with ulnar osteotomy if necessary. Sagittal and coronal correction was measured on the angle between forearm and hand., Results: Mean age at treatment was 37.5 months (range, 9-120 months). Mean distraction time was 53.2 days (26-90 days). Ulnar osteotomy was required in 8 cases (61%). There were no major complications requiring interruption of distraction. Sagittal and coronal correction after centralization reduced mean residual forearm/hand angulation to<12°., Discussion: Soft-tissue distraction in the concavity ahead of centralization is essential to good correction, avoiding extensive soft-tissue release and hyperpressure on the distal ulnar growth plate. There have been several studies of distraction; the present technique, associating 2 mini-fixators connected by threaded K-wires, provided sufficient distraction in the concavity of the deformity to allow satisfactory correction in all cases. Subsequent complications (breakage or displacement of the centralization wires) testify to the complexity of long-term management., Conclusion: The present study confirms the interest of a preliminary soft-tissue distraction step in treating severe radial club hand., (Copyright © 2015 Elsevier Masson SAS. All rights reserved.)

Tendon lengthening and transfer are usually indicated for certain neuromuscular disorders, peripheral or central nerve injury, congenital disorder or direct traumatic or degenerative musculotendinous lesion. In musculotendinous lengthening, technique depends on muscle anatomy, degree of correction required, and the need to avoid excessive loss of force. Lengthening within the muscle or aponeurosis is stable. In the tendon, however, it may provide greater gain but is not stable and requires postoperative immobilization to avoid excessive lengthening. Tendon transfer consists in displacing a muscle's tendon insertion in order to restore function. The muscle to be transferred is chosen according to strength, architecture and course, contraction timing, intended direction, synergy and the joint moment arm to be restored. Functions to be restored have to be prioritized, and alternatives to transfer should be identified. The principles of tendon transfer require preoperative assessment of the quality of the tissue through which the transfer is to pass and of the suppleness of the joints concerned. During the procedure, transfer tension should be optimized and the neurovascular bundle should be protected. The method of fixation, whether tendon-to-bone or tendon-to-tendon suture, should be planned according to local conditions and the surgeon's experience., (Copyright © 2014 Elsevier Masson SAS. All rights reserved.)

Introduction: The present study sought to assess the interest of inter-tibiofibular graft (ITFG), alternatively called posterolateral bone graft, in traumatic segmental tibial bone defect., Material and Methods: Twenty-eight ITFGs were performed in 125 tibial reconstructions for traumatic bone defect. Patient's records were reviewed retrospectively in a multicenter study. Tibial reconstruction with and without ITFG was compared for bone healing and patient's return to full weight-bearing status., Results: There were no failures of bone healing in the ITFG group, versus 14 (14%) in the non-ITFG group. Graft-to-consolidation delays were shorter with first-line ITFG, at a mean 10 months (range, 3-20 months) versus 16.5 months (range, 3-63 months) in the non-ITFG group (P<0.05). Weight-bearing was likewise more quickly resumed, with full weight-bearing at a mean 9 months (range, 3-19 months) versus 15 months (range, 1-34 moths) respectively (P<0.05). Return to work was also quicker, at a mean 15 months (range, 4-28 months) versus 27 months (range, 8-56 months) respectively (P<0.05)., Discussion: This study confirmed the interest of ITFG in tibial bone defect reconstruction. ITFG may singly be used for small defects less than 4 cm, or in conjunction with another tibial reconstruction technique; ITFG in the present series achieved consolidation in all cases and significantly shortened the times to return to full weight-bearing status and to work., Level of Evidence: III: retrospective case-control study., (Copyright © 2012 Elsevier Masson SAS. All rights reserved.)

Unlabelled: Traumatic bone defects (BD) are rare in children. There are no pediatric series in the literature on this topic. The aim of this first pediatric series was to determine the epidemiological characteristics and evaluate the results of different treatments in this entity., Material and Methods: This retrospective multicenter study evaluated diaphyseal bone defects in cases in which bone reconstruction was performed. BD was either initial and associated with trauma or secondary, resulting from infected non-union., Results: The series included 27 patients (17 boys and 10 girls), mean age 11.4 years old (3-16) (20 traffic accidents). At the outset of all patients' history was an open fracture (one stage 1, seven stage 2, 11 stage 3A and seven stage 3B, 1 NR). BD involved 13 tibias, 9 femurs, three humerus, one radius and one ulna. Bone defects were initial in 20 cases and secondary in seven cases. They were less than 2 cm in two cases, between 2 and 5 cm in 9 cases, between 5 and 10 cm in 10 cases and more than 10 cm in six cases. Treatment of BD was immediate in one case and delayed in 26 cases. Techniques used included: induced membrane in 10 cases, bone transport in seven cases, bone autograft in eight cases, vascularized fibular transfer in one case, no bone reconstruction in one case. Union was obtained in 27 patients. Union was obtained within a mean 12.3 months BD (3-62). Fifteen patients presented with sequellae., Discussion: Traumatic bone defects have a better prognosis in children than in adults. The thicker, more active and richly vascularized periosteum in children is an important prognostic factor. Treatment of BD requires good initial bone stabilization. Reconstruction depends on the integrity of the periosteum. In case of an intact periosteum, bone reconstruction does not seem necessary in young children. If one part of the periosteum is intact, a simple autograft seems sufficient even with extensive bone defects. In the absence of the periosteum or especially in case of infection, the induced membrane technique seems preferable, with bone transport or a vascularized bone transfer., Level of Evidence: IV: retrospective study., (Copyright © 2012 Elsevier Masson SAS. All rights reserved.)

Introduction: Among bone reconstruction techniques, the induced membrane technique, proposed in 1986 by Masquelet, has rarely been studied or evaluated in the surgical literature until recently. The 2010 French Society of Orthopaedic Surgery and Traumatology (SoFCOT) Annual Convention symposium was the occasion to evaluate a large cases series having used this technique., Patients and Methods: This retrospective study included 84 posttraumatic diaphyseal long bone reconstructions using the induced membrane technique (1988-2009). The series included 79 men and five women (mean age 32-year-old). In 89% of cases, the initial trauma was an open fracture. The leg was involved in 70% of cases. The mean delay between the accident and treatment of bone defects (BD) was 8 months. In 50% of the cases, infection was present. Bone defects were larger than 5cm in 57% of the cases., Results: Union was obtained in 90% of cases, a mean 14.4 months after the first stage of the reconstruction. A mean 6.11 interventions were necessary to obtain union. Malalignment was present in 17% of cases. Delayed interventions to correct deformities mostly of the foot were necessary in 16% of the cases. Eight failures (10%) involved severe leg traumas associating extensive bone defects, soft tissue lesions and infection and required amputation in six cases., Discussion: This series emphasizes the severity of open fractures of the leg, especially those with primary or secondary infection. The induced membrane technique has been shown to be effective in treating bone defects, regardless of their magnitude. In a two-step procedure, this simple but demanding technique, which may be more complicated when repair of soft tissue is necessary, provides successful treatment in case of initial infection and fulfills the goal of controlling infection before bone reconstruction. Moreover, the induced membrane technique can be integrated in hybrid reconstruction procedures., Level of Evidence: Level IV. Retrospective study., (Copyright © 2011 Elsevier Masson SAS. All rights reserved.)

Introduction: Severe forms of Blount's disease may be associated with medial tibial plateau (MTP) depression. Management should then take account of joint congruence, laxity, limb axis, torsional abnomality, leg length discrepancy (LLD) and eventual recurrence history., Patients and Methods: Eight knees (six patients) were managed in a single step comprising MTP elevation osteotomy, lateral epiphysiodesis and proximal tibia osteotomy to correct varus and rotational deformity. Fixation was achieved using an Ilizarov external fixator. Mean age was 10.5 years. Mean hip-knee-ankle (HKA) angle was 151°; distal femoral varus, 94°; metaphyseal-diaphyseal angle (MDA), 27°; and angle of depression of the medial tibial plateau (ADMTP), 42°. Predicted residual proximal tibial growth was 2.6 cm., Results: At a mean 48 months' follow-up, results were good in six cases, medium in one and poor (due to incomplete lateral epiphysiodesis) in one. Mean lateral tibial torsion was 9° and final LLD 11 mm. Weight-bearing was resumed at 2 months, and the fixator was removed at 5.5 months postoperatively. At end of follow-up, mean HKA angle was 179.6°, MDA 7.3° and ADMTP 5.4°., Discussion: This technically demanding procedure gave satisfactory results in terms of axes and congruence; longer term assessment remains needed., Level of Evidence: Level IV. Retrospective study., (Copyright © 2011 Elsevier Masson SAS. All rights reserved.)

Introduction: Several recent studies demonstrate that upper extremities kinematics analysis is in increasing use to assist clinical practice. We describe an upper limb kinematics analysis protocol that was first applied to a group of healthy children (to obtain normative data), and subsequently, to a child presenting with obstetrical brachial plexus palsy (OBPP) before and after surgical treatment., Materials and Methods: The protocol is based on two very simple tasks. Reflective markers are placed on the studied segments, and optoelectronic cameras three-dimensionally record the position of the markers during the course of movement. The data, collected by a Vicon system (Oxford Metrics Ltd., Oxford, UK), are analyzed by a dedicated software; this software provides coefficient of multiple correlation (CMC) for the comparison of different kinematics curves and motion amplitudes. A CMC above 0.95 was considered to be excellent, between 0.85 and 0.95 was good, and below 0.85 was poor. Twelve healthy children, average age 9.7 years (from 7 to 14 years), were analyzed. A 7-year-old patient presenting left OBPP was similarly analyzed, pre- and postoperatively, after a lateral rotation osteotomy of the humerus., Results: The analysis of the 12 healthy children established a kinematics corridor for each task and each angle considered. Analysis of the pathological patient revealed kinematics anomalies during movement which went undetected at simple clinical examination. CMC analysis after treatment showed improvement of all movements around the shoulder, going from "poor" preoperatively to "excellent" postoperatively. Amplitudes analysis similarly demonstrated postoperative improvement, which increased from 28 to 67% according to the rotations considered, around the shoulder and elbow. The interest in these results should be confirmed by studies in a larger number of patients., Discussion: Upper extremity kinematics analysis is increasingly utilized in current clinical practice. Although many problems occur because of the non-cyclical and non-automatic nature of movement, review of the literature and our preliminary results show that reproducibility is satisfactory. Interest in our work arises from helping develop a preoperative evaluation tool (providing a more global view of abnormalities) as well as a postoperative assessment one (for the quantification of movement gains obtained by surgery after humeral osteotomy)., Level of Evidence: Level IV. Diagnostic retrospective study., (2009 Elsevier Masson SAS. All rights reserved.)