Key Pinch Strength Research Articles

Effects of Hand Strengthening Exercise on Various Hand Functions in Female Patients of Chronic Rheumatoid Arthritis: A Case-control Study

Introduction: Rheumatoid Arthritis (RA) is a chronic systemic inflammatory disease which hampers the physical activity of an individual due to presence of pain, stiffness and fatigue. As it is progressive in nature, regular exercise of sufficient intensity is needed to maintain muscle strength. Aim: To find the effectiveness of hand strengthening exercise programme with therapeutic putty on grip strength and functional movement in chronic rheumatoid hand. Materials and Methods: A total of 206 female patients of chronic RA female patients were randomly divided in two groups- control and experimental groups and data. Control group received care which included active hand exercises with hot water fomentation while experimental group received strengthening exercises with therapeutic putty and hot water fomentation. Grip strength was measured by hand dynamometer, key pinch strength of dominant hand was measured by digital pinch meter, pain severity was assessed by Brief pain inventory scale and hand function was measured by SF-SACRAH (Score for Assessment and Quantification of Chronic Rheumatic Affections of Hands) at 0 week, after 4 week, 8 week and 12 week for both groups. Treatment effects were compared by one-way ANOVA followed by post-hoc analysis. The results were analysed by Statistical Package for Social Sciences (SPSS) version 16.0. Results: After 12 weeks of exercise programme, a significant improvement (p<0.01 and p<0.005) were observed in all outcome measures of hand function including reduction in pain severity score from baseline in experimental group. While in control group there was no significant changes in all four parameters from baseline to after 12 week exercise programme. Conclusion: A significant improvement was seen in experimental group as compared to control group after hand strengthening exercise protocol using therapeutic putty suggesting that, hand strengthening exercise programme by using therapeutic putty is effective in chronic RA hand.

Trapeziectomy and Suture-Button Suspensionplasty for Basilar Thumb Arthritis: Is It Enough to Prevent First Ray Subsidence?

Introduction Trapeziectomy and suture-button suspensionplasty (SBS) are a novel option to treat end-stage trapeziometacarpal (TMC) osteoarthritis. Our purpose is to evaluate our outcomes with this technique and in this setting, with a minimum of 18 months of follow-up.Materials and Methods Twenty-eight patients were included, operated between 2016 and 2018. We recorded demographic data, preoperative Eaton stage, follow-up and operative times. The patients completed the Quick Disabilities of the Arm, Shoulder and Hand (QuickDASH) questionnaire and tip pinch, key pinch, and grip strength were measured. First metacarpal subsidence was calculated, and postoperative complications were documented.Results The average follow-up was 34 months. The mean QuickDASH was 32 at the final follow-up. The average strength results were 20 kg for grip, 3.6 kg for tip pinch, and 4.2 kg for key pinch. The rate of first ray subsidence was 10.7%. We encountered three complications: a hardware intolerance, a second metacarpal fracture, and a suture rupture. There was one reoperation to remove an implant.Conclusion Trapeziectomy and SBS functional results are similar to other techniques, with less subsidence of the first ray and allowing for early mobilization and fast recovery. This procedure is a safe and promising option in the treatment of TMC osteoarthritis, with good medium-term outcomes.

OUTCOME MEASURES: P.250 Relationship between hand strength and function in patients with Duchenne muscular dystrophy or spinal muscular atrophy

This study analyses the relationships between hand strength and function in ambulant and non-ambulant patients with Duchenne muscular dystrophy (DMD) or spinal muscular atrophy (SMA). The maximal handgrip and key pinch strength were measured with the MyoGrip and MyoPinch dynamometers, respectively. Hand function was assessed using the MoviPlate, the Motor Function Measure items for distal upper limb (MFM D3 UL) and the Cochin scale. The data of 91 DMD and 77 SMA patients from 3 natural history studies were analysed (age range 6-31 years).

Virtual reality-based treatment for regaining upper extremity function induces cortex grey matter changes in persons with acquired brain injury

BackgroundIndividuals with acquired brain injuries (ABI) are in need of neurorehabilitation and neurorepair. Virtual anatomical interactivity (VAI) presents a digital game-like format in which ABI survivors with upper limb paresis use an unaffected limb to control a standard input device and a commonplace computer mouse to control virtual limb movements and tasks in a virtual world.MethodsIn a prospective cohort study, 35 ambulatory survivors of ABI (25/71% stroke, 10/29% traumatic brain injury) were enrolled. The subjects were divided into three groups: group A received VAI therapy only, group B received VAI and physical/occupational therapy (P/OT), and group C received P/OT only. Motor skills were evaluated by muscle strength (hand key pinch strength, grasp, and three-jaw chuck pinch) and active range of motion (AROM) of the shoulder, elbow, and wrist. Changes were analyzed by ANOVA, ANCOVA, and one-tailed Pearson correlation analysis. MRI data was acquired for group A, and volumetric changes in grey matter were analyzed using voxel-based morphometry (VBM) and correlated with quantified motor skills.ResultsAROM of the shoulder, elbow, and wrist improved in all three groups. VBM revealed grey matter increases in five brain areas: the tail of the hippocampus, the left caudate, the rostral cingulate zone, the depth of the central sulcus, and the visual cortex. A positive correlation between the grey matter volumes in three cortical regions (motor and premotor and supplementary motor areas) and motor test results (power and AROM) was detected.ConclusionsOur findings suggest that the VAI rehabilitation program significantly improved motor function and skills in the affected upper extremities of subjects with acquired brain injuries. Significant increases in grey matter volume in the motor and premotor regions of affected hemisphere and correlations of motor skills and volume in nonaffected brain regions were present, suggesting marked changes in structural brain plasticity.Trial registrationThe trial “Limitations of motor brain activity – use of virtual reality for simulation of therapeutic interventions” has been registered under reference number ISRCTN11757651.

A prospective study analyzing both inflation and deflation preference for commonly available inflatable penile prostheses.

Despite popularity, satisfaction rates of inflatable penile prosthesis (IPP) use can be improved by evaluating the ability to operate devices in the preoperative setting. The purpose of this study was to prospectively analyze the preference of three commonly available IPPs. In total, 125 IPP-naïve men 60 years of age or older were prospectively recruited from an outpatient Urology clinic from June 2019 to January 2020. A questionnaire standardized to all encounters was utilized to collect demographics, selected medical information, and key pinch strength. Participants were then asked to rank three models in terms of preference (from 1 to 3, 1 representing most preferred) for each inflation and deflation in a double-blinded manner. Statistical analysis was performed using ANOVA, a Chi-square test and multivariable logistical regression analysis. The results demonstrated preference for Coloplast Titan (44%) for inflation, and preference for AMS 700 (40%) for deflation. Men who preferred the Coloplast Titan inflation had a lower chance of preferring the AMS 700 MS deflation (OR = 0.29; p = 0.010) and Coloplast Titan Touch deflation (OR = 0.27; p = 0.012). Preference for Coloplast Titan was weakly associated with participant history of coronary artery disease (OR = 5.96, p = 0.006) and osteoarthritis (OR = 3.04, p = 0.044). Neither key pinch strength nor age was associated with preference for a particular model. IPP-naïve men over 60 years favor Coloplast Titan for inflation and AMS 700 for deflation, and men who preferred the Coloplast Titan for inflation were less likely to choose the AMS 700 MS or Coloplast Titan Touch for deflation. Further studies should aim to confirm these findings.

Supercharge End-to-Side Anterior Interosseous-to-Ulnar Motor Nerve Transfer Restores Intrinsic Function in Cubital Tunnel Syndrome.

The supercharge end-to-side anterior interosseous nerve-to-ulnar motor nerve transfer offers a viable option to enhance recovery of intrinsic function following ulnar nerve injury. However, in the setting of chronic ulnar nerve compression where the timing of onset of axonal loss is unclear, there is a deficit in the literature on outcomes after supercharge end-to-side anterior interosseous nerve-to-ulnar motor nerve transfer. A retrospective study of patients who underwent supercharge end-to-side anterior interosseous nerve-to-ulnar motor nerve transfer for severe cubital tunnel syndrome over a 5-year period was performed. The primary outcomes were improvement in first dorsal interosseous Medical Research Council grade at final follow-up and time to reinnervation. Change in key pinch strength; grip strength; and Disabilities of the Arm, Shoulder and Hand questionnaire scores were also evaluated using paired t tests and Wilcoxon signed rank tests. Forty-two patients with severe cubital tunnel syndrome were included in this study. Other than age, there were no significant clinical or diagnostic variables that were predictive of failure. There was no threshold of compound muscle action potential amplitude below which supercharge end-to-side anterior interosseous nerve-to-ulnar motor nerve transfer was unsuccessful. This study provides the first cohort of outcomes following supercharge end-to-side anterior interosseous nerve-to-ulnar motor nerve transfer in chronic ulnar compression neuropathy alone and underscores the importance of appropriate patient selection. Prospective cohort studies and randomized controlled trials with standardized outcome measures are required. Therapeutic, IV.

Postsurgical Electrical Stimulation Enhances Recovery Following Surgery for Severe Cubital Tunnel Syndrome: A Double-Blind Randomized Controlled Trial.

Patients with severe cubital tunnel syndrome often have poor functional recovery with conventional surgical treatment. Postsurgical electrical stimulation (PES) has been shown to enhance axonal regeneration in animal and human studies. To determine if PES following surgery for severe cubital tunnel syndrome would result in better outcomes compared to surgery alone. Patients with severe cubital tunnel syndrome in this randomized, double-blind, placebo-controlled trial were randomized in a 1:2 ratio to the control or stimulation groups. Control patients received cubital tunnel surgery and sham stimulation, whereas patients in the stimulation group received 1-h of 20 Hz PES following surgery. Patients were assessed by a blinded evaluator annually for 3 yr. The primary outcome was motor unit number estimation (MUNE) and secondary outcomes were grip and key pinch strength and McGowan grade and compound muscle action potential. A total of 31 patients were enrolled: 11 received surgery alone and 20 received surgery and PES. Three years following surgery, MUNE was significantly higher in the PES group (176±23, mean+SE) compared to controls (88±11, P<.05). The mean gain in key pinch strength in the PES group was almost 3 times greater than in the controls (P<.05). Similarly, other functional and physiological outcomes showed significantly greater improvements in the PES group. PES enhanced muscle reinnervation and functional recovery following surgery for severe cubital tunnel syndrome. It may be a clinically useful adjunct to surgery for severe ulnar neuropathy, in which functional recovery with conventional treatment is often suboptimal.

Subterminal key pinch dynamometry: a new method to quantify strength deficit in ulnar nerve paralysis.

Precise pre- and postoperative assessments are fundamental to recording the quality of recovery after ulnar nerve repair. Because of its imprecision, manual muscle testing is being replaced by dynamometry to measure grasping and key-pinch strengths. However, both grasping and key pinch are dependent not only on the ulnar nerve but also the median and radial nerves. We propose to measure strength using a new sort of pinch, called the 'subterminal key pinch'. Strength was measured using a commercially available pinch meter. Patients applied pressure on the dynamometer with the interphalangeal joint of the thumb, maintaining the joint in extension to avoid enhancement of strength by the flexor pollicis longus. We examined 17 patients before ulnar nerve repair. Preoperatively, grasping strength was 46% of normal, while key pinch was 58%, pinch-to-zoom strength was 26% and subterminal key pinch only 7%. Subterminal key pinch was the most affected pinch with a strength deficit of over 90%.Level of evidence: IV.

Open versus endoscopic carpal tunnel release: a systematic review and meta-analysis of randomized controlled trials

BackgroundEndoscopic carpal tunnel release (ECTR) and open carpal tunnel release (OCTR) both have advantages and disadvantages for the treatment of carpal tunnel syndrome (CTS). We compared the effectiveness and safety of ECTR and OCTR based on evidence from a high-level randomized controlled trial.MethodsWe comprehensively searched PubMed, EMBASE, Cochrane Library, Web of Science, and Medline to identify relevant articles published until August 2019. Data regarding operative time, grip strength, Boston Carpal Tunnel Questionnaire scores, digital sensation, patient satisfaction, key pinch strength, return to work time, and complications were extracted and compared. All mean differences (MD) and odds ratios (OR) were expressed as ECTR relative to OCTR.ResultsOur meta-analysis contained twenty-eight studies. ECTR was associated with significantly higher satisfaction rates (MD, 3.13; 95% confidence interval [CI], 1.43 to 4.82; P = 0.0003), greater key pinch strengths (MD, 0.79 kg; 95% CI, 0.27 to 1.32; P = 0.003), earlier return to work times (MD, − 7.25 days; 95% CI, − 14.31 to − 0.19; P = 0.04), higher transient nerve injury rates (OR, 4.87; 95% CI, 1.37 to 17.25; P = 0.01), and a lower incidence of scar-related complications (OR, 0.20; 95% CI, 0.07 to 0.59; P = 0.004). The permanent nerve injury showed no significant differences between the two methods (OR, 1.93; 95% CI, 0.58 to 6.40; P = 0.28).ConclusionsOverall, evidence from randomized controlled trials indicates that ECTR results in better recovery of daily life functions compared to OCTR, as revealed by higher satisfaction rates, greater key pinch strengths, earlier return to work times, and fewer scar-related complications. Our findings suggest that patients with CTS can be effectively managed with ECTR.

Sustained efficacy of a concise self-management programme for hands in systemic sclerosis: a longitudinal case-control observational study.

In a longitudinal case-control observational study, we evaluated the benefits of a self-management programme for hands developed for patients with SSc. Patients with SSc included in the intervention group (IG) received a concise self-management programme with emphasis on hand exercises and were evaluated during 24 weeks regarding hand pain, hand function, range of motion, grip and tip and key pinch strength. Results were compared with a control group (CG) with no intervention using an analysis of variance for repeated measures with variables transformed into ranks (P ≤ 0.05). Effect sizes were calculated using Cohen's test. Of 90 patients who were evaluated, seven were excluded at enrolment and 26 were excluded during the follow-up. Data from 57 subjects (IG 40, CG 17) were used for analysis. Groups were similar at baseline, except for the Scleroderma HAQ and tip and key pinch strength. Outcome improvements were noted only in the IG (P ≤ 0.05, large effect size). In the CG, variables did not change or had even worsened (hand grip strength and finger motion). This self-management programme based on hand exercises for SSc resulted in pain reduction and hand function, strength and range of motion improvement. It can be a simple and useful intervention, especially when a regular rehabilitation programme is not available.

Partial Versus Total Trapeziectomy With Interposition Arthroplasty for Trapeziometacarpal Osteoarthritis Grade II to III Eaton-Littler: A Clinical Trial

PurposeTotal trapeziectomy is the most widely used technique to treat isolated thumb trapeziometacarpal joint osteoarthritis. However, this technique has been associated with proximal migration of the thumb metacarpal, which has led some physicians to consider partial trapeziectomy as a valid alternative. The purpose of this study was to assess whether partial trapeziectomy improves final key pinch strength compared with total trapeziectomy.MethodsWe randomized 34 patients with basal thumb osteoarthritis into 2 groups to undergo partial or total trapeziectomy with interposition arthroplasty. Key pinch strength at 12 months was the primary outcome measure. Other variables measured included trapezial space height, range of motion, grip strength, change in key pinch strength, patient-reported outcome measures, and pain.ResultsNo difference between groups was detected regarding final pinch strength, trapezial space height, grip strength, range of motion, change in pinch strength, patient-reported outcomes (Quick–Disabilities of the Arm, Shoulder, or Hand), or pain.ConclusionsWe cannot conclude that partial trapeziectomy provides an advantage over total trapeziectomy at 1 year after surgery. Although trapeziometacarpal space was substantially preserved in the partial trapeziectomy group at 12 months, this difference was not statistically or clinically significant.Type of study/level of evidenceDiagnostic III.

Does the DISI matter after distal scaphoidectomy with tendon interposition for STT osteoarthritis?

Progression to dorsal extension of the lunate after distal scaphoidectomy was described more than a decade ago. Still, this technique remains a popular choice for surgical treatment of isolated scaphotrapeziotrapezoid osteoarthritis (STT OA). This study aimed to investigate short-term postoperative function, patient satisfaction and radiographic outcomes of distal scaphoidectomy with tendon interposition for isolated STT OA in the wrist. Scaphoid resection width, amount of DISI and postoperative complications were also assessed. We evaluated all distal scaphoidectomies done at our hospital from 2012 to 2018. Postoperative clinical analysis consisted of grip and key pinch strength, joint amplitude, pain on visual analog scale (VAS), hand usability (VAS) and functional scores (QuickDASH and PRWHE scores). On follow-up radiographs, we measured the amount of DISI, resection height and scaphoid working length and compared them to functional scores. Eighteen patients with 21 operated wrists were eligible. Average time to postoperative evaluation was 36 (5–78) months. We observed DISI in 95% of the cases (n=19). A mean increase of 13° (±6) in radiolunate angle was noted when comparing pre- and postoperative radiographs. Neither the amount of DISI nor the resection height was significantly correlated with the functional scores. No revision surgery for advanced wrist collapse was reported. Four concomitant surgeries were needed. Distal scaphoid excision with tendon interposition yields good short-term results in isolated STT OA. While 95% of cases developed a DISI deformity, there were no cases of functional impairment. Longitudinal studies with long-term follow-up are required to further evaluate lunate extension and possible clinical implications.

Relation between grip and pinch strength and pitch type in high school pitchers with and without elbow symptoms.

Gripping and pinching a ball is a fundamentally important part of the kinetic chain for throwing baseball pitches of various types. This study of high school pitchers was conducted to assess the association between grip and pinch strength, the pitch type, and the history of elbow symptoms. We examined 133 high school baseball pitchers, all of whom had completed a self-administered questionnaire including items related to pitch type throwing ratios, the age at starting each pitch type, and throwing-related elbow joint pain sustained during the prior 3 years. We measured grip strength and the bilateral side tip, key, and palmar pinch strengths. Comparisons were made between the participants with and without an elbow symptom history to assess the grip and each pinch strength, throwing ratio of pitch type, and the age at starting to throw each pitch type. Pitchers with an elbow symptom history exhibited less difference between the grip strength on the throwing side than those with no elbow symptom history (p = 0.04). No difference was found between participants with and without an elbow symptom history in terms of pinch strength, the throwing ratios of pitch types, or the age at starting to throw pitches of each type. Positive significant association was found between pinch strength on the pitching side and the forkball and screwball throwing ratio (r = 0.27, p = 0.002). Grip strength might influence high school baseball pitcher elbow conditions. The frequency of certain pitch types might develop pinch strength in high school baseball pitchers.

399 Impact of key pinch strength on preference for commonly available inflatable penile prostheses: a prospective study analyzing both inflation and deflation

399 Impact of key pinch strength on preference for commonly available inflatable penile prostheses: a prospective study analyzing both inflation and deflation

Assessment of hand-grip and key-pinch strength at three arm positions among healthy college students: Dominant versus non-dominant hand.

ObjectiveGrip strength is important for independent self-care and is a predictor of functional decline. This study aimed to determine if healthy individuals would demonstrate different hand-grip and key-pinch strengths at three different arm positions and in comparisons between dominant and non-dominant hands.MethodsA total of 61 right-hand–dominant male college students aged 19–23 years were consecutively recruited from the College of Medical Rehabilitation Sciences. Three researchers performed the measurements. All tests were performed with the JAMAR® hand-grip dynamometer handle set in its second position. Participants were instructed to squeeze the handle of the hand-grip dynamometer in the 90° elbow flexion, 90° shoulder flexion, and arm dangled positions. For assessment of key-pinch strength, every participant had to squeeze the thumb pad against the lateral aspect of the middle phalanx of the index finger. Key-pinch strength was measured in the same positions used for assessment of hand-grip strength. Participants were blinded for the outcome measurements. The significance level was set at p < 0.05.ResultsThe hand-grip and key-pinch strengths did not show significant effects. Comparison of right and left hand-grip strengths also showed insignificant differences. However, the key-pinch strength showed a significant increase in favour of the dominant hand.ConclusionsClinicians can choose any upper-extremity position to measure hand-grip and key-pinch strength. Furthermore, clinicians should aim to maintain and restore almost equal scores for hand-grip and pinch strength of the dominant and non-dominant hands to ensure better hand function.

Effects of High-Intensity Laser Therapy on Pain Sensitivity and Motor Performance in Patients with Thumb Carpometacarpal Joint Osteoarthritis: A Randomized Controlled Trial.

To examine the effects of high-intensity laser therapy (HILT) on pain sensitivity and motor performance in patients with thumb carpometacarpal (CMC) osteoarthritis (OA). Prospective, triple-blinded, randomized, placebo-controlled trial. Private practice, Malaga, Spain. Forty-three patients (mean ± SD age = 71 ± 12 years) with a diagnosis of thumb CMC OA grade 1-2 were randomized to the control group (N = 21) or experimental group (N = 22). The experimental group (ExpG) received high-intensity laser therapy (HILT), and the control group (ConG) received a placebo treatment. The outcome measures were pain intensity (visual analog scale) and key pinch strength measurements (dynamometer). All outcome measures were collected at baseline, immediately following the intervention, at four weeks, and at 12 weeks following the intervention. Analysis of variance revealed a group × time interaction (F = 40.8, P < 0.001) for pain intensity, with those patients receiving LT experiencing a greater reduction in pain compared with those receiving placebo therapy at the end of the intervention (P < 0.001), as well as at 12 weeks after the intervention. Although mean values in the ExpG were higher than in the ConG for key pinch at assessment, these differences were not statistically significant. HILT effectively diminishes pain intensity when used as an isolated treatment for patients with thumb CMC OA, but the effect of treatment decreases after 12 weeks.

Functional Results after Intramuscular Ulnar Nerve Anterior Transposition for Young Adults Patients.

Background: This study investigated the functional outcomes of intramuscular ulnar nerve transposition (IMUNT) in young adults with cubital tunnel syndrome (CuTS). Methods: This retrospective study enrolled 37 military soldiers on active duty diagnosed with and treated for CuTS to determine the compression sites, complication rate, and postoperative results. Patient outcomes were analyzed using the Disability of the Arm, Shoulder, and Hand (DASH) questionnaire and the Bishop-Kleinman rating scales. Results: Patient outcomes were analyzed after a mean follow-up duration of 26.1 (22-29) months for 37 extremities. DASH scores improved from 38.7 (range, 13-63 points) preoperatively to 5.8 (range, 0-18 points) postoperatively. Patient improvement was statistically significant (p < 0.05). Based on the 12-point Bishop-Kleinman rating system, 30 (82.1%) patients were graded as excellent; five (13.5%) as good, and two (5.4%) as failed outcomes. Statistically significant improvements in both key pinch and grip strength were noted. Complications included one case of transient neuroparaxias of the medial antebrachial cutaneous nerve and one case of hematoma formation. Conclusions: We consider intramuscular ulnar nerve transposition to be a satisfactory procedure for CuTS. The procedure enhances upper limb function, thus allowing the patients to resume their physically demanding work with minimal complications.

Ulnar Nerve Injuries (Sunderland Grade V): A Simplified Classification System and Treatment Algorithm.

A prospective observational study was conducted to verify the hypothesized algorithm. The study included 110 patients diagnosed with ulnar nerve injury (Sunderland grade 5). We divided the patients into 4 groups depending on the site of injury. Each group of patients was managed in accordance with a particular strategy, exploiting nerve transfer techniques along with the updated knowledge of the internal topography of the ulnar nerve. The motor recovery of the small muscles of the hand was assessed after 2 years of follow-up, using the disabilities of the arm, shoulder, and hand score, and other parameters including key pinch strength, hand grip strength, and the motor power of the first dorsal interosseous muscle on the Medical Research Council scale. The mean values of the disabilities of the arm, shoulder, and hand score, key pinch strength, and hand grip strength showed a statistically significant improvement across all patient groups (P < 0.05). Of those with zone (I) injury, postoperatively, 79.9% patients attained a first dorsal interosseous muscle power grade >3 on the Medical Research Council scale, while 93.9% of patients with zone (II) damage achieved the same result. Surprisingly, 84% of patients included in both zones (III) and (IV) also recovered to the same extent. This prospective observational study examined and successfully confirmed the validity of our proposed novel algorithm for the management of ulnar nerve injuries (Sunderland grade 5).

Suture Suspensionplasty Using Abductor Pollicis Longus and Flexor Carpi Radialis for Advanced Thumb Carpometacarpal Joint Arthritis.

Current operative treatment for advanced thumb carpometacarpal (CMC) joint arthritis mainly constitutes complete trapeziectomy with or without additional stabilizing procedures. However, it is unclear whether the additional procedures influence overall clinical outcomes. Therefore, the purpose of this study was to evaluate the effectiveness of our posttrapeziectomy suture suspensionplasty technique, performed using the abductor pollicis longus and flexor carpi radialis tendons, in patients with advanced thumb CMC arthritis. We evaluated 36 thumbs of 35 patients with advanced thumb CMC arthritis treated with combined operative excision of trapezium followed by a suture suspensionplasty using flexor carpi radialis and abductor pollicis longus tendons. We used a minimal volar approach to create a sling construct with a nonabsorbable suture material, which could support the thumb metacarpal base without pin fixation or tendon transfer. For radiographic evaluation, we used the ratio of the radial metacarpal subluxation to metacarpal articular width, estimated from the bilateral stress-view radiographic images of the thumb, and calculated the trapezial space ratio by dividing the trapezial space height by the proximal phalangeal length. The clinical outcomes were evaluated using the visual analog scale and disabilities of the arm, shoulder, and hand scores, along with evaluation of the improvement in both postoperative range of motion and strength recovery. The mean duration of follow-up was 26 months (range, 18-60 months). The average visual analog scale and disabilities of the arm, shoulder, and hand scores decreased from 5.9 to 0.4 and from 51.6 to 27.0, respectively. The range of motion during palmar abduction and opposition of the metacarpophalangeal joint improved with an increase in mean value from 49.1 degrees to 54.1 degrees, and from 7.8 to 9.3 Kapandji score, respectively. The grip and key pinch strengths showed no significant changes from mean preoperative values of 13.3 kg and 3.8 kg to 13.2 kg and 3.2 kg, respectively, as measured at the 18-month follow-up. Our suture suspensionplasty technique has several advantages including minimal invasive approach, short operative time, cost-effectiveness, and early mobilization. We suggest that it can be used as an effective, alternative stabilization method after a complete trapeziectomy.

Intermediate-Term Outcomes of Trapeziectomy With a Modified Abductor Pollicis Longus Suspension Arthroplasty

Purpose There is limited literature characterizing intermediate-term surgical and clinical outcomes of basal thumb arthritis after trapeziectomy and modified abductor pollicis longus suspension arthroplasty (APLSA). We hypothesized that patients who underwent APLSA would have favorable intermediate-term outcomes. Methods Patients were contacted after APLSA at a median follow-up of 4.8 years (interquartile range, 3.0–6.0 years). Follow-up clinical evaluation included grip, key pinch, and tip pinch strength. We obtained patient-reported outcomes surveys: visual analog pain score and Disabilities of the Arm, Shoulder, and Hand score. Information on demographics, surgical information, and complications was obtained from the electronic medical record and patient interviews. Results This study evaluated 66 hands in 60 patients (51 women and 9 men, average age 60.4 years at surgery). At the time of index surgery, 8% of hands had prior ipsilateral surgery (not involving the carpometacarpal joint), 56% had concurrent ipsilateral surgery (35% carpal tunnel release, 32% hemitrapezoid resection, 22% other soft tissue procedures (mucous cyst excision, ganglion cyst excision, or trigger finger release), 5% metacarpal capsulodesis, and 5% metacarpal arthrodesis. Median time between operation and most recent evaluation was 4.8 years (interquartile range, 3.0–6.0 years). Operative hand grip (18.7 ± 11.1 kg), key pinch (4.7 ± 2.1 kg), and tip pinch (3.2 ± 1.7 kg) strength was 94%, 84%, and 86%, respectively, of nonsurgical grip, key pinch, and tip pinch strength. Median (interquartile range) outcomes were a visual analog pain score of 0.0 (0.0–2.0) and Disabilities of the Arm, Shoulder, and Hand score of 9.1 (2.3–26.1). Conclusions Results at 4.8 years for APLSA demonstrated 84% to 94% grip, key pinch, and tip pinch compared with the contralateral side. Patients experienced little to no pain in the operated joint and minimal disability of the upper extremity at intermediate-term follow-up. Abductor pollicis longus suspension arthroplasty is a favorable procedure for achieving pain relief and functional use associated with basal thumb arthritis. Type of study/level of evidence Prognostic IV.