The Influence of Age and Sex on Ulnar Variance

Nakamura, Ryogo; Tanaka, Yasuhito; Imaeda, Toshihiko; Miura, Takayuki

doi:10.1016/0266-7681(91)90136-c

Cited by 120 publications

(72 citation statements)

References 17 publications

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“…Some factors cannot be controlled in this comparison such as the position of forearm rotation that has been showed by Jung et al to significantly alter ulnar variance 15 . Age and gender have also been shown to alter ulnar variance 14 .…”

Section: Discussionmentioning

confidence: 99%

Distal Radius Morphometry in the Malaysian Population

Chan¹,

Vivek²,

Leong³

et al. 2008

MOJ

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The goal of treatment in distal radius fracture is to restore the anatomy of the distal radius, however the criteria currently used to evaluate the quality of reduction are based on Western based published figures. This goal of this study was to investigate whether there are variations in the morphology of the distal radius among the multiracial population of Malaysia. Consecutive normal wrist radiographs of patients who presented to the accident and emergency unit in three major hospitals in Malaysia were measured. . The palmar tilt of the distal radius averaged 12.6o ± 3.55o, and the radial inclination averaged 25.1o ± 3.42o. The ulnar variance averaged -0.1 ± 1.31mm, 38.4% of the patients had neutral ulnar variance, 28.8% have negative ulnar variance and 32.9% have positive ulnar variance. Our results indicate that distal radius morphometric parameters in the Malaysian population are comparable to Western figures.

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Section: Discussionmentioning

confidence: 99%

Distal Radius Morphometry in the Malaysian Population

Chan¹,

Vivek²,

Leong³

et al. 2008

MOJ

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“…In contrast to previous reports [3,7,16], TFCC tears were the most common concomitant condition. A relatively high incidence of ulnar-positive variance among Asians [6,14] may explain the high incidence we found, as our study included only patients of Asian descent. To estimate the role of coexisting intraarticular disorders like TFCC tears and intrinsic ligament tears in preoperative pain and the benefits from débridement and ablation that were performed at the time of arthroscopic ganglion resection, we compared VAS pain score preoperatively and at 2 years after surgery in patients with or without coexisting intraarticular disorders.…”

Section: Discussionmentioning

confidence: 98%

Coexisting Intraarticular Disorders Are Unrelated To Outcomes After Arthroscopic Resection of Dorsal Wrist Ganglions

Kang¹,

Koh²,

Kim³

et al. 2013

Clinical Orthopaedics &Amp; Related Research

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Background Dorsal wrist ganglions are one of the most frequently encountered problems of the wrist and often are associated with intraarticular disorders. However, it is unclear whether coexisting intraarticular disorders influence persistent pain or recurrence after arthroscopic resection of dorsal wrist ganglions. Questions/purposes We investigated (1) which intraarticular disorders coexist with dorsal wrist ganglions and (2) whether they influenced pain, function, and recurrence after arthroscopic ganglion resection. Methods We retrospectively reviewed 41 patients with primary dorsal wrist ganglions who underwent arthroscopic resection. We also obtained VAS pain scores and the Mayo Wrist Scores (MWS) preoperatively and at 2 weeks, 6 weeks, 3 months, 6 months, 1 year, and annually thereafter postoperatively. Minimum followup was 24 months (mean, 38.9 months; range, 24-60 months).Results Twenty-one patients had other coexisting intraarticular disorders: 18 triangular fibrocartilage complex tears and nine intrinsic ligament tears. All coexisting disorders were treated simultaneously. Two years after surgery, the mean VAS pain score decreased from 2.4 to 0.6, and mean grip strength increased from 28 to 36 kg of force. The mean active flexion-extension showed no change. The mean MWS improved from 74 to 91. Three ganglions recurred. There was no difference in mean VAS pain score and MWS preoperatively and at 2 years after surgery or recurrence of ganglions between patients with or without coexisting lesions. Conclusions Intraarticular disorders commonly coexist with ganglions but we found they were unrelated to pain, function, and recurrence after arthroscopic resection of the ganglion when the intraarticular disorders were treated simultaneously.

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“…lnar variance in Asians is usually positive, with a mean value of +0.86 mm in Koreans 7 , +0.313 mm in the Taiwanese 8 , and +0.20 mm in the Japanese population 9 , whereas ulnar variance in the white population is usually negative, with a mean value of -0.9 mm in Americans 10 and -0.84 mm in Danes 11 . These findings suggest that the prevalence of idiopathic ulnar impaction syndrome may be more common in Asians than in white individuals.…”

Section: Discussionmentioning

confidence: 99%