Supination Range Of Motion Research Articles

Effects of distal ulnar morphology on symptomatic extensor carpi ulnaris (ECU) subluxation and the clinical outcomes of anatomic ECU subsheath reconstruction: a retrospective observational study

Purpose: This study aimed to evaluate the association between distal ulnar morphology and symptomatic extensor carpi ulnaris (ECU) subluxation and assess the results of anatomic ECU subsheath reconstruction.Methods: To investigate the effects of distal ulnar morphology on symptomatic ECU subluxation, we compared distal ulnar morphology using magnetic resonance imaging among three groups: group 1 (symptomatic ECU subluxation, 12 cases), group 2 (non-symptomatic ECU subluxation, 24 cases), and group 3 (no ECU subluxation, 24 cases). Distal ulnar morphology was evaluated using ulnar variance, ulnar styloid length, and ECU groove depth. Clinical outcomes were evaluated using the Patient-Related Wrist Evaluation (PRWE) score, the Disabilities of the Arm, Shoulder, Hand (DASH) score, grip strength, and the range of motion of the wrist joint.Results: Ulnar variance showed a statistically significant difference between groups 1 and 2, and ECU groove depth showed statistically significant differences between groups 1 and 2 and between groups 2 and 3. Ulnar styloid length showed no statistically significant between-group differences. In patients with symptomatic ECU subluxation, there was a significant increase in the range of motion in supination and grip strength, and a significant decrease in the DASH score (from 40 to 9) and PRWE score (from 48 to 12). Conclusion: Negative ulnar variance was associated with symptomatic ECU subluxation, and shallow ECU groove depth was correlated to asymptomatic ECU subluxation, but unrelated to symptoms. Anatomic ECU tendon sheath reconstruction was identified as an effective surgical method.

Comparison of clinical and functional outcomes of patients who underwent plate osteosynthesis and intramedullary nailing for forearm fractures

Aims: The aim of this study was to compare the functional and radiographic results of patients with forearm diaphyseal fractures after intramedullary nailing (IMN) and plate and screw osteosynthesis.
 Methods: A total of 58 patients, including 31 patients operated on with the plate osteosynthesis method and 27 patients operated on with the IMN method for forearm diaphyseal fractures between 2017 and 2022, were retrospectively analyzed. The mean age was 35.9±14.5 years in the plate group and 33±13.1 years in the IMN group. The mean follow-up period was 157±83 days in the IMN group and 220±97 days in the plate group. Evaluation criteria for functional outcomes were forearm pronation; supination range of motion; the Disabilities of the Arm, Shoulder, and Hand (DASH) score; and the Grace-Eversmann score. 
 Results: The mean union time was 66.7 days in the plate group and 54.4 days in the IMN group (p=0.039). The mean length of hospitalization was 3.9±3.44 days in the plate group and 2.93±1.49 days in the IMN group. The mean supination range was 72.5±9.9 degrees in the plate group and 72.2±11.8 degrees in the IMN group. The mean pronation range was 81.2±11.7 degrees in the plate group and 80.3±15.5 degrees in the IMN group. The mean follow-up period was 157±83 days in the IMN group and 220±97 days in the plate group (p=0.011). According to the Association for Osteosynthesis/Orthopedic Trauma Association (AO/OTA) classification, 30 cases were classified as type A, 21 cases as type B, and 7 cases as type C. According to the Grace-Eversmann classification, 2 cases in the plate group were classified as unacceptable, 2 were classified as acceptable, 10 were classified as good, and 16 were classified as excellent, while 2 cases in the IMN group were classified as unacceptable, 4 were classified as acceptable, 5 were classified as good, and 16 were classified as excellent. The mean DASH score was 14.74±10.49 in the plate group and 15.11±12.7 in the IMN group.
 Conclusion: With the advantages of minimal incision, less soft tissue damage, and no evacuation of the fracture hematoma, the union time and follow-up periods were found to be shorter in the IMN group. Thanks to the bearing force of intracanal intramedullary nails, patients were able to move earlier and satisfactory functional outcomes were obtained.

Synovial Chondromatosis of Wrist Joint: A Rare Case Report

Synovial chondromatosis is an uncommon and non-malignant transformation of the synovial membrane which leads to development of numerous cartilaginous bodies within the joint. Synovial chondromatosis occurs rarely in the wrist, and there have been a lack of reports of this occurrence in the literature. Hereby we reported a case of synovial chondromatosis occurred in the wrist joint treated with marginal excision. A 52-year-old male complained lump on his right wrist accompanied by mild pain. On physical examination, there was lump on ulnar side of the right wrist with normal underlying skin, palpable hard and immobile. There was slight limitation on wrist flexion and extension, whereas radial – and ulnar deviation and pronation – supination range of motion were within normal limit. The plain x-ray of the right wrist showed multiple calcified intra-articular cartilaginous loose bodies in the distal radioulnar joint. Biopsy showed multilobulated cartilage tissue that contained chondrocytes without atypia, and some cartilage tissue accompanied with mild atypia. We diagnosed the patient as primary benign soft tissue tumor at right distal radio-ulnar joint due to synovial chondromatosis and we performed marginal excision. The clinical result was reported good, but complete data could not be obtained because the patient refused to do routine follow up. The rarity of synovial chondromatosis involving the wrist joint could be an obstacle in performing diagnostic procedures and treatment for the case, but with the thoughtful application of resources and surgical principles, synovial chondromatosis of the wrist joint can be safely and effectively managed. Keywords: Synovial chondromatosis, Wrist joint, Marginal excision

Investigating the Combined Effects of Fascial Distortion Model Manual Therapy and Balance-Strength Training in Individuals with Chronic Ankle Instability.

The Fascial Distortion Model (FDM) is a relatively new manual therapy approach in the field of musculoskeletal physical therapy, and its potential effectiveness in treating chronic ankle instability (CAI) remains unexplored. A randomized controlled trial with 23 participants was conducted. Patients were randomly assigned to either the FDM + balance-strength training (BST) group (n = 8), receiving extra FDM sessions weekly in addition to two sessions of BST, or the BST group (n = 7). Healthy controls (n = 8) did not receive any treatment and participated only in pre- and post-test measurements. Objective measurements including Y-Balance Test Lower Quarter (YBT-LQ), Flamingo Balance Test (FBT), Weight-Bearing Lunge Test (WBLT), ankle joint range of motion (ROM), and Cumberland Ankle Instability Tool (CAIT) were recorded at baseline and the end of the intervention. The results demonstrated significant differences between the FDM + BST and BST groups for supination ROM (p = 0.008) and similarly for WBLT (p = 0.041), FBT (p = 0.40), YBT-LQ (p = 0.023), and CAIT score (p = 0.008). Moreover, while both groups demonstrated significant improvement at the post-test compared with their pre-test for plantarflexion and pronation ROM, WBLT, and CAIT score, the FDM + BST group demonstrated significant improvements in supination ROM, FBT, and YBT-LQ. Our study suggests that the addition of FDM concepts to a BST may lead to enhanced improvements in ankle ROM, static and dynamic balance, and self-reported outcomes in individuals with CAI compared to BST.

Covariation between wrist bone morphology and maximal range of motion during ulnar deviation and supination in extant nonhuman primate taxa.

This study investigates the maximal range of motion (ROM) during wrist deviation and forearm rotation for five different primate genera and the possible correlation with the shape of the distal ulna, triquetrum, and hamate. A two-block phylogenetic partial least square analysis was done to test this covariation in a phylogenetic context, using shape coordinates and a matrix of maximal ROM data as input data. The results show that gibbons have the highest ROM for both ulnar deviation and supination, while Macaca exhibited the lowest ROM for supination, and Pan had the lowest ROM for ulnar deviation. These results can be attributed to differences in locomotor behaviour, as gibbons need a large wrist mobility in all directions for their highly arboreal lifestyle, while Macaca and Pan need a stable wrist during terrestrial locomotion. However, we found no correlation between distal ulna/triquetrum/hamate shape and maximal ROM during ulnar deviation and supination in the different primate taxa. A larger dataset in combination with behavioral and biomechanical studies, are needed establish form-function relationships of the primate hand which will aid the functional interpretation of primate fossil remains.

Minimally Invasive Fixation with Dorsal Suspension Button and Volar Plate in Distal Radius Fractures with Dorsal Die Punch Fragments: A Preliminary Study.

Objective The objective of the study is to analyze the clinical and radiological results obtained using a minimally invasive fixation technique with a volar locking plate and a suspension system with a dorsal button in distal articular radius fractures with dorsal comminution. Materials and Methods Six patients with distal radius fractures, between 19 and 68 years of age, were included in the study. Mean follow-up was of 15 weeks. Range of motion (ROM) in flexion, extension, radial deviation, ulnar deviation, pronation, supination, the strength in kilograms, and values on the Visual Analog Scale (VAS), Disabilities of Arm, Shoulder and Hand (DASH), and Mayo Wrist Score (MWS) scales were evaluated at 4, 8, and 12 weeks postoperative. Correction of anteroposterior diameter of the radius and concordance between postoperative anteroposterior diameter and the contralateral wrist diameter were evaluated radiologically. Results The following mean values were obtained at 12 weeks postoperative: ROM in flexion: 40.5°, ROM in extension: 49.5°, ROM in radial deviation: 24.5°, ROM in ulnar deviation: 15°, ROM in pronation: 87°, ROM in supination: 89°, strength: 37.5 kg, pain in VAS scale: 2 points, DASH: 54.5 points, and MWS: 67.5 points. At 12 weeks postoperative, the mean correction of anteroposterior diameter was 0.49 mm. The anteroposterior diameter and that of the contralateral wrist were strongly correlated. Conclusion Fixation with the volar locking plate and dorsal suspension button could be considered an alternative to dorsal plate fixation for treatment of distal radius fractures with comminution or associated dorsal die punch fragments.

Rare case of lateral dislocation of the elbow without distinct radiological signs

While the elbow joint dislocation is one of the most common dislocations, lateral dislocation of elbow is so rare. In this study, we described a 65-year-old woman with lateral elbow dislocation referred to Akhtar Hospital. With full range of motion in supination, pronation, and extension, as well as 60º flexion, the most important finding with this case was that the radiographic findings could not help surgeon to diagnose the lateral dislocation. Therefore, CT-scan was performed. After confirmation, closed reduction was done via a standard maneuver. The patient was followed up for 2 weeks and physiotherapy was ordered. According to this case, when there was an elbow trauma with unusual radiograph without any specific finding to confirm the lateral dislocation, it is recommended to perform CT-scan. The closed reduction and following physiotherapy also are essential for management of this condition.

Clinical treatment of dorsal avulsion fracture of the capitellum combined with medial or posterior medial dislocation of the elbow joint

To analyze the possible injury mechanisms in patients with dorsal avulsion fracture of the capitellum combined with medial or posterior medial dislocation of the elbow joint, and to discuss their treatment and prognosis. Retrospective analysis was made on the clinical data of 4 patients with dorsal avulsion fracture of the capitellum combined with medial or posterior medial dislocation of the elbow joint admitted between September 2014 and September 2020, including 3 males and 1 female with an average age of 20.7 years (range, 13-32 years). There were 2 cases of dorsal avulsion fracture of the capitellum combined with medial dislocation of the elbow joint and 2 cases of dorsal avulsion fracture of the capitellum and anterior medial fracture of the coronoid process combined with posterior medial subluxation of the elbow joint. Closed reduction was performed in 3 patients with fresh fracture combined with dislocation, then 2 cases were fixed with tension band and 1 case was fixed with tension band combined with Acumed coronoid anatomic plate. And in patient with old fracture nonunion, the coronoid process was fixed with 1 screw, then the humeral sclerotic bone mass was removed, and finally the lateral collateral ligament was repaired and a hinged external fixator was added. All the incisions healed by first intention without early complications such as infection or peripheral nerve injury. The 4 patients were followed up 13-30 months (mean, 20.8 months). The fractures all healed with a healing time of 70-90 days (mean, 79.5 days). At 6 months after operation, heterotopic ossification was seen in the posterior aspect of the right elbow joint in 1 case, and the alkaline phosphatase level was normal (67 U/L); the tension band was removed to clear the heterotopic ossification and the elbow joint was released. The rest of the patients had no heterotopic ossification. At last follow-up, all patients had good functional recovery of the elbow joint, with a Mayo score of 85-100 (mean, 92.5), and the excellent and good rate was 100%. The elbow flexion range of motion was 120°-135°, the extension range of motion was 10°-20°, and the pronation and supination range of motion were all 75°-85°. Dorsal avulsion fractures of the capitellum combined with medial or posterior medial dislocation of the elbow may be due to simple varus stress. If an anteromedial coronoid facet fracture also occurs, it may be for the varus posteromedial rotatory instability, which is the opposite mechanism to that of an Osborne-Cotterill lesion. For fresh dorsal avulsion fractures of the capitellum, tension band fixation can be used with good results.

Determining the Effectiveness of a New Device for Hand Therapy (The FEPSim Device): Feasibility Protocol for a Randomized Controlled Trial Study.

BackgroundImpairments of the forearm, wrist, and hand affect a sizable proportion of individuals and impose a significant economic burden on health care systems. FEPSim is a medical device for hand and wrist rehabilitation. The FEPSim device could be part of the standard of care for upper extremity rehabilitation during therapeutic activities to increase range of motion, dexterity, and strength. FEPSim has not yet been tested in a health care setting; therefore, a trial of the effectiveness of FEPSim in upper extremity rehabilitation is warranted.ObjectiveThis study aims to assess the feasibility of conducting a definitive trial in terms of recruitment, eligibility criteria, the type and number of diagnoses included, the length and dosage of the intervention, and data collection methods. This study also aims to gather clinical and statistical information as well as information related to the cost and usability, which allows for an economic evaluation of the device.MethodsThe trial will use a randomized controlled design comprising 47 intervention participants and 47 control group participants. Participants will be adults (age≥18 years) attending outpatient rehabilitation with limitations in their forearm, wrist, or hand function due to distal radial or ulnar fractures, stroke, or osteoarthritis. This study’s primary outcome variables are related to patients’ range of motion and strength, specifically active and passive wrist flexion and extension range of motion; active and passive forearm pronation and supination range of motion; grip strength; and pinch strength. The secondary outcome variables are related to patients’ perceived wrist pain and disability in activities of daily living. The patients’ perceived wrist pain and disability in activities of daily living will be measured using the patient-rated wrist evaluation questionnaire. The control group will receive the standard of care at each of the 2 hospital facilities (Glenrose Rehabilitation and Royal Alexandra Hospitals). The intervention group will receive the same standard of care as the control group at each facility and will use the FEPSim device for therapeutic activities to increase strength, range of motion, resistance, and dexterity. All the participants will be assessed at baseline (week 0); weeks 2, 4, and 8; and postintervention (week 10).ResultsThe FEPSim study was launched in April 2020. This study is currently on hold because of the global COVID-19 pandemic. The recruitment process is expected to resume by September 2020, and the primary impact analysis is expected to be conducted by December 2020.ConclusionsThis study will provide valuable information on the measurement of comparative intervention effects, technology acceptance by hand therapists, and how associated treatment and product costs will contribute to the evidence planning process, which will be crucial for the future adoption of FEPSim.Trial RegistrationInternational Standard Randomized Controlled Trial Number Registry ISRCTN13656014; https://www.isrctn.com/ISRCTN13656014International Registered Report Identifier (IRRID)PRR1-10.2196/22145

The Effect of Forearm Shortening on Forearm Range of Motion

Osseous shortening of the forearm is performed during forearm replantation; however, no large clinical reviews have discussed its effects on patient outcomes. A recent cadaver study demonstrated the progressive loss of forearm pronation/supination ranges of motion with increased shortening lengths using external fixation. Our study aimed to quantify the effects of shortening on passive forearm motion using internal fixation after 2, 4, and 6 cm of mid-forearm shortening. A volar Henry approach and direct approach to the ulna were used on 8 cadaveric specimens. The forearms were sequentially shortened by 2, 4, and 6 cm. Fixation was performed on the volar surfaces of the radius and ulna. Pronation and supination of the forearms were tested by applying 1 Nm of torque at baseline and after the fixation of both the radius and ulna using osteotomy. Radiographs and measurements were obtained at each phase to determine the maximum radial bow and radioulnar gap. Data were analyzed using a linear mixed-effects model. Greater shortening of the radius and ulna led to progressively greater reductions in both pronation and supination range of motion. Larger differences were seen in supination at 2-4 cm of shortening and in pronation at 4-6 cm of shortening. Changes in supination were found to be associated with the radial bow and radioulnar gap; changes in pronation were found to be associated with the radial bow and radial bow's location. This study demonstrates that quantifiable effects on passive forearm motion occur after osseous shortening of the forearm. This information may improve surgeons' and patients' understanding of the changes in forearm motion expected after shortening in the setting of replantation or tumor resection or in the setting of limb salvage of a mangled extremity.

A comparative study of variable angle volar plate and bridging external fixator with K-wire augmentation in comminuted distal radius fractures

PurposeComminuted intraarticular distal radial fractures are difficult to treat conservatively and require operative treatment. This study compared the functional outcomes between variable angle volar plating and external fixator with K-wire augmentation in open reduction and internal fixation. MethodsA total of 62 adult patients with comminuted intraarticular distal radius fracture were randomized into 2 groups: volar plate group and external fixator group. These patients aged between 18 and 60 years had unilateral fractures, and agreed to be included in the study. Patients with a history of fracture, bilateral fracture, associated other injuries, delayed injury for more than 2 weeks, open fracture, pre-existing arthrosis or disability, psychiatric illness and pathological fracture were excluded. Patients were followed up at 6 weeks, 3 months, 6 months and 1 year. The assessment of pain, functional activity, range of motion and grip strength was done at each stage of follow-up. The pain and functional activities were assessed by patient rated wrist evaluation (PRWE) score and disabilities of the arm, shoulder and hand (DASH) score. ResultsPatients in volar plate group had superior PRWE score and DASH score at each stage of follow-up. At 1 year follow-up, the mean PRWE score were 7.48 for volar plate group and 7.35 for external fixator group; while the mean DASH score was 4.65 for volar plate group and 5.61 for external fixator group. They had better flexion and extension range of movement. They also had better pronation and supination range of motion at initial follow-up, however the difference get attenuated by 1 year. Volar plate group had significantly better grip strength than external fixator group. Complication rates were higher in external fixation group. ConclusionFixation with variable angle volar plate results in early wrist mobilization, better range of movement, less pain and disability and early return of function.

Evaluation of function following rehabilitation after distal biceps tendon repair

Background: There is limited knowledge of the effects on function after ruptured distal biceps tendon repair. The purpose of this follow-up was to evaluate range of motion (ROM), strength, endurance, physical function and perceived satisfaction after surgery for ruptured distal biceps tendon and standardised physiotherapy treatment.Methods: This is a cross-sectional study of individuals assessed on average 3 years following a distal biceps tendon repair. Out of 44 patients identified, 22 participated. All had completed standardised rehabilitation postoperatively. ROM, static upper arm flexion and extension strength, and endurance were measured. The participants estimated their level of disability and satisfaction with treatment results.Results: Supination of the injured arm was significantly inferior to the non-injured arm (p < .001), but elbow flexion, extension, and pronation were not (p > .05). There were no significant differences in isometric strength in flexion and extension or endurance in pronation/supination between arms. Patients reported low level of disability (DASH score, median 0.83), with 16/22 scoring ≤10. Eighteen participants (82%) reported complete satisfaction with treatment.Conclusion: The majority of the participants had regained function with the exception of range of motion in supination. They reported no or minor disability and overall satisfaction with treatment results was high.

Outcomes and Complications After Repair of Complete Distal Biceps Tendon Rupture with the Cortical Button Technique.

Background:Numerous surgical techniques have been described for the repair of complete distal biceps tendon ruptures. However, the outcome of repair with cortical button fixation has not been extensively evaluated. The hypothesis of the present study was that elbow strength and range of motion would be less than normal after repair but that ongoing disability would be minimal as measured with use of the Disabilities of the Arm, Shoulder and Hand (DASH) score.Methods:We performed a retrospective cohort study of patients with complete distal biceps tendon rupture that was repaired with cortical button fixation via a 1-incision anterior approach. Outcome was assessed on the basis of elbow range-of-motion and strength measurements, DASH scores, and radiographs of the operatively treated elbow. Descriptive statistics were generated for patient demographics and outcome variables. Strength was assessed with limb-symmetry index, and range of motion was evaluated with paired t tests.Results:Sixty male patients consented to this study. The average age at the time of follow-up was 49.6 ± 7.8 years, and the average time from injury to follow-up was 3.7 ± 1.7 years. The mechanism of injury included lifting heavy objects (62%) and sporting activities (25%). Elbow flexion and supination range of motion were not different between the operatively treated and contralateral arms. The operatively treated elbow demonstrated decreased flexion strength (96% of that on the contralateral side) and supination strength (91% of that on the contralateral side). The findings did not change when controlling for hand dominance. The mean DASH score was 7.9 ± 11.4, which is not significantly different from the normative value for the general population. Postoperative complications included heterotopic ossification (Brooker class I [29 patients] or II [5 patients]), neurapraxia (7 patients), and rerupture (3 patients).Conclusions:The repair of complete distal biceps tendon ruptures with cortical button fixation was associated with decreased strength in elbow flexion and forearm supination compared with the contralateral arm, although the differences were small and likely were not clinically important. The complication rate was relatively high; however, most complications were minor and were associated with minimal disability, as reflected by the DASH scores.Level of Evidence:Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.

Immediate improvements of supination range of motion and strength following pronator teres muscle friction massage: a clinical trial comparing people with and without supination limited motion

ABSTRACTObjectives: To investigate the effects of friction massage techniques on the pronator teres muscle on supination range of motion (ROM) and supinator strength in individuals with and without limited supination ROM.Methods: In total, 26 subjects (13 with limited supination ROM and 13 healthy subjects) volunteered to participate in this study. We used a customized wrist cuff. Supination ROM and supinator strength were measured with a 9-axis inertial motion sensor and load cell. The friction massage protocol was executed with the pronator teres muscle in a relaxed position. Then supination ROM and supinator strength were measured again.Results: There was no significant interaction effect on supination ROM, which was significantly greater in the limited supination and control groups. A post hoc t-test revealed that the limited supination group achieved a significantly increased post-test supination ROM (51.7 ± 7.8°) compared to the pre-test value (43.6 ± 5.2°). In addition, the control group achieved a significant increase in post-test supination ROM (67.7 ± 10.0°) compared to the pre-test value (61.4 ± 7.7°). There was no significant interaction effect on supinator strength. Supinator strength was significantly greater in the limited supination and control groups. A post hoc t-test revealed a significant difference in supinator strength between the pre- and post-test values in the limited supination group.Discussion: Friction massage helps restore a limited ROM of the forearm supination motion and immediately increases supinator muscle strength. This technique can be used as an intervention method to improve muscle strength in patients with limited supination ROM.

In Vivo Three-Dimensional Analysis of Malunited Forearm Diaphyseal Fractures with Forearm Rotational Restriction.

The aim of this study was to clarify the mechanisms of rotational restriction in malunited forearm diaphyseal fractures. We retrospectively analyzed the cases of 18 patients with malunited forearm diaphyseal fractures and rotational restriction. All patients underwent bilateral computed tomography (CT) of the forearm in maximum supination, pronation, and neutral positions. From these images, we created 3-dimensional (3-D) bone surface models. We quantified the 3-D deformities, identified instances of osseous impingement between the radius and the ulna during forearm rotation, calculated the path length of the central band (CB) of the interosseous membrane, and measured forearm range of motion. Sixteen patients had extension deformity of the radius (the RE group) and 2 had flexion deformity (the RF group). In the RE group, extension deformity of the radius and valgus deformity of the ulna had significant negative correlation with pronation range of motion (R = -0.50, p = 0.046) and supination range of motion (R = -0.63, p = 0.027), respectively. Osseous impingement was mainly observed during pronation (15 of 16 patients). The CB path with the largest changes in length originated from the distal CB attachment area of the radius and ran toward the proximal area of the ulna (the transverse CB). The transverse CB significantly increased in length in supination compared with that in pronation (p < 0.001). Therefore, tightness of the transverse CB appeared to cause supination restriction in the RE group. In the RF group, osseous impingement caused supination restriction. The greatest increases in the transverse CB length were observed in pronation in the RF group, which appeared to cause pronation restriction. In the RE group, pronation restriction was associated with osseous impingement that was due to extension deformity of the radius, and supination restriction was associated with CB tightness that was due to valgus deformity of the ulna. In the RF group, our results suggested that pronation restriction was caused by CB tightness and that supination restriction was caused by osseous impingement. Three-dimensional corrective osteotomy for extension deformity of the radius in malunited forearm diaphyseal fractures would improve rotational restriction by relieving osseous impingement during pronation and CB tightness during supination.

Reliability assessment of measuring active wrist pronation and supination range of motion with a smartphone

This study aimed to improve clinical examination techniques by determining the reliability of different methods to evaluate forearm movements. Two methods using the iPhone™ 5 and its gyroscope application (alone [I5] or attached to a selfie stick [ISS]) were compared with two conventional measurement devices (a plastic goniometer with a hand-held pencil [HHP] and a bubble goniometer [BG]) to evaluate the active range of movement (AROM) of the wrist during pronation and supination. Two independent groups of subjects took part in this prospective single-center diagnostic study: 20 healthy subjects and 20 patients. The four evaluation methods had high intra-observer consistency after three measurements (intra-class correlation coefficient [ICC] [3, 1] of 0.916 for the HHP; 0.944 for ISS; 0.925 for BG; 0.933 for I5) and excellent inter-observer reliability (ICC [2, k] of 0.926 for HHP; 0.934 for ISS; 0.899 for BG; 0.894 for I5), with an agreement of plus or minus 2°. When these devices are used with rigorous methodology, they are reliable for the goniometric evaluation of AROM of wrist pronation and supination.

Clinical outcomes and safety of distal biceps repair using a modified entry point.

The purpose of this study is to determine the safety of a one-incision technique for distal biceps repair with modified repair entry point in regards to the distance from the posterior interosseous nerve (PIN). Secondly, we present the clinical results of patients having undergone this procedure. Ten cadaveric specimens were dissected to reveal the radial tuberosity. Two 1.6-mm guidewires were inserted into the radial tuberosity, one centrally, and one 5-mm more proximal. Both guidewires penetrated the dorsal cortex, and posterior dissection revealed their exit points. The distance from the PIN and each wire was determined using a vernier calliper. The functional outcomes of 10 patients' post repair were reviewed. Performance was determined using strength and range of motion (ROM) measurements. Functional impairment was assessed using the disability of the arm, shoulder and hand outcome measure (DASH score). The uninjured side was used as a control. The mean distance from the centre of the radial tuberosity to the PIN was 7.33 mm with a centrally placed wire, compared with 10.92 mm when measuring from the proximal guidewire (P < 0.05). Supination and flexion strengths were 83 and 90% of the uninjured side, respectively. There was a mean of 1.5° loss of flexion and 0° loss of extension. Loss of pronation and supination ROM were 0.5° and 4.5° on average, respectively. Average DASH score was 6.3. We recommend a 5-mm more proximal entry point for insertion of the guidewire during distal biceps repair. This poses less risk to the PIN without significant functional impairment. Our outcomes are comparable with those reported in the literature.

Effect of Volarly Angulated Distal Radius Fractures on Forearm Rotation and Distal Radioulnar Joint Kinematics

To examine the effect of volar angulation deformities of the distal radius with and without triangular fibrocartilage complex (TFCC) rupture on forearm range of motion and the kinematics of the ulnar head at the distal radioulnar joint (DRUJ) during simulated active forearm rotation. Volar angulation deformities of the distal radius with 10° and 20° angulation from the native orientation were created in 8 cadaveric specimens using an adjustable apparatus. Active supination and pronation were performed using a forearm motion simulator. Pronation and supination range of motion was quantified with each deformity. In addition, changes in the dorsovolar position of the ulnar head relative to the radius were calculated after simulating each distal radial deformity. Testing was performed with the TFCC intact and sectioned. Volar angulation deformities of 20° decreased the supination range with preservation of pronation. There was no effect of TFCC status on the range of forearm rotation. With the TFCC intact, volar angulation deformities translated the ulna slightly dorsally in pronation and volarly in supination. After sectioning the TFCC, volar angulation deformities of 10° and 20° translated the ulna dorsally throughout forearm rotation. Volar angulation deformities reduce supination range and alter the DRUJ kinematics. The increased tension in the intact TFCC caused by volar angulation deformities likely prevented the expected dorsovolar displacement at the DRUJ and restricted supination. Dividing the TFCC released the constraining effect on the DRUJ and allowed the ulna to translate dorsally. However, supination remained limited, presumably because of impediment from the dorsally subluxated ulna. This study demonstrated the importance of correcting volar angulation deformities of the distal radius to less than 20° in order to maintain normal range of forearm rotation and to less than 10° to maintain normal DRUJ kinematics when the TFCC is ruptured.

Assessment of function in patients with rotator cuff tears: Functional test versus self-reported questionnaire.

Purpose:The rotator cuff tears (RCT) are a well-known cause of shoulder pain and loss of upper extremity function. The purpose of this study was to evaluate the upper extremity function using two different methods in patients with RCT and to determine the parameters that influence the upper extremity function.Materials and Methods:A sample of 38 patients (27-76 years; 10 men and 28 women) who were diagnosed with a chronic full-thickness RCT, confirmed by magnetic resonance imaging (MRI), was studied. Upper extremity function was determined using Western Ontario Rotator Cuff Index (WORC) and 9 Hole Peg Test (9PEG). Other assessments included active range of motion (ROM), muscle strength, shoulder pain, and scapular dyskinesis.Results:There was a weak association between WORC scores and 9PEG. A statistically significant, negative relationship was found between 9PEG and ROM in supination, as well as muscle strength of shoulder extensors, adductors, internal and external rotators.Conclusions:In addition to the weak association between WORC and 9PEG, the difference between the parameters related to each method suggests that they should not be used interchangeably to determine the upper extremity function. We recommend the utilization of 9PEG instead of WORC in assessing the upper extremity function in the setting of loss of muscle strength.Level of Evidence:Level IV, Therapeutic study.

Long-term functional donor site morbidity of the free radial forearm flap in head and neck cancer survivors

BackgroundTo assess the functional donor site morbidity of the forearm free flap in patients surviving at least 2 years after ablative head and neck cancer surgery in a tertiary care centre.MethodsThis study involved nine long-term survivors (2 year post-operative) who had forearm free flaps to reconstruct head and neck defects. All flaps were raised from the non-dominant arm. The non-donor side acted as a control for all patients. Objective measurements were as follows: grip, tip pinch and key pinch strength measured with dynamometers; flexion, extension, radial and ulnar deviation and pronation and supination range of motion at the wrist measured with goniometry; A timed manual dexterity task was performed with a grooved pegboard test, and sensation of the radial nerve was tested with Semmes Weinstein monofilaments. Subjective measurements included a validated patient questionnaire of hand function and opinions of scar appearance as well as a validated scar assessment from two different observers.ResultsPronation at the wrist, manual dexterity and sensation were found to be significantly reduced in the donor side compared to the non-donor side. Inter-rater agreement between the two observers was found to be poor, except for an acceptable correlation between overall scar opinions. No correlations were found between any subjective or objective items or between the patient’s and the observers’ subjective evaluations.ConclusionsDonor site morbidity can be demonstrated with objective testing however this is accepted and well tolerated by head and neck cancer patients.